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ENPH 10-K & 10-Q changes, risk factors and insider trading

Enphase Energy, Inc. · Nasdaq · Semiconductors & Related Devices · CIK 1463101 · All filings on SEC.gov

Everything below is quoted or computed from Enphase Energy, Inc.'s public SEC filings. It is not a recommendation to buy or sell. Automated comparisons can contain errors; confirm with the original filing.

At a glance

34 / 44risk-factor paragraphs added / removed in latest 10-K
4new risk-factor headings
2Form 4 filings reporting open-market purchases (last 180 days)
4Form 4 filings reporting open-market sales (last 180 days)

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What changed in the latest 10-K

Comparing 10-K filed 2026-02-17 (period ending 2025-12-31) with 10-K filed 2025-02-10 (period ending 2024-12-31).

Risk Factors (10-K Item 1A)

34new paragraphs
44removed paragraphs
40reworded paragraphs
20,890 → 20,415words in section

New heading “The inability of our products to comply with the minimum domestic content tax credit thresholds, inclusive of FEOC regulations, could negatively impact our business, financial condition and results of operations.”

New heading “Changes in the United States trade environment, including the imposition of import tariffs, has and could adversely affect the amount or timing of our revenue, results of operations or cash flows.”

New heading “We depend on solar distributors, installers and providers of solar financing to assist in selling our products to customers, and if they fail to perform at the expected level, or at all, our business, financial condition and results of our operations could be harmed.”

New heading “Expectations relating to ESG considerations and related reporting obligations may expose our business to potential liabilities, increased costs, and reputational harm.”

Removed heading “We rely primarily on distributors, installers and providers of solar financing to assist in selling our products to customers, and the failure of these customers to perform at the expected level, or at all, would have an adverse effect on our business, financial condition and results of our operations.”

Removed heading “Challenges relating to supply chain constraints, including with respect to raw materials, semiconductors and integrated circuits, could adversely impact our revenue, gross margins and results of operations.”

Removed heading “Changes in the United States trade environment, including the imposition of import tariffs, could adversely affect the amount or timing of our revenue, results of operations or cash flows.”

Removed heading “Expectations relating to ESG considerations and related reporting obligations may expose the business to potential liabilities, increased costs, and reputational harm.”

Largest changes (selected automatically by length and topic keywords; quoted verbatim, no commentary)

Removed text topics: tariff, sanction, breach, china
“Escalating trade tensions between the U.S. and China have led to increased tariffs and trade restrictions, including tariffs applicable to certain of our products. For example, in September 2018, the U.S. began assessing 10% tariffs on certain solar products manufactured in China, including our microinverter products and related accessories which are manufactured in China. …”
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New text topics: tariff, china, taiwan, regulation
“The United States has imposed significant new tariffs on nearly all products and components imported into the United States and could propose additional tariffs or increases to those already in place. A subset of our products is sourced from China and India, and certain components necessary to manufacture our products in the United States, including our microinverters, batteries and related accessories, are imported from China, India, Taiwan, Vietnam and Japan, among other countries. …”
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Removed text topics: tariff, china, regulation
“In response to the tensions in U.S.-China trade relations and increased tariffs, we had focused efforts and resources on attaining manufacturers outside of China, primarily in Mexico and India, but more recently have moved a significant portion of our manufacturing to the United States. However, some components necessary for our products still are required to be imported from outside the United States. Existing tariffs and the possibility of additional tariffs in the future have created uncertainty in the solar industry. …”
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New text topics: tariff
“Changes in the United States trade environment, including the imposition of import tariffs, has and could adversely affect the amount or timing of our revenue, results of operations or cash flows.”
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Removed text topics: tariff
“Changes in the United States trade environment, including the imposition of import tariffs, could adversely affect the amount or timing of our revenue, results of operations or cash flows.”
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Removed text topics: tariff, china, regulation
“It is unknown whether and to what extent additional new tariffs or other new laws or regulations will be adopted that increase the cost of manufacturing in China and/or importing components from China to the United Enphase Energy, Inc. | 2024 Form 10-K | 31 States. Further, it is unknown what effect that any such new tariffs or retaliatory actions would have on us or our industry and customers. Our lithium-ion phosphate (“LFP”) battery cells for our storage products are supplied solely via our two suppliers in China. …”
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Full comparison: every changed paragraph (118)

Green = added, red = removed. Unchanged paragraphs, 6 paragraphs where only numbers/dates changed, and tables are not shown. Read the complete text in the original filing.

Added

Our business and the broader solar and energy storage industry depend significantly on government-issued subsidies and economic incentives that promote the adoption and cost competitiveness of solar photovoltaic (“PV”) and energy storage systems for on-grid applications. These incentives include, among others, ITCs, feed-in tariffs (“FiTs”), NEM programs, rebates, and other policies that vary by jurisdiction. Many of these programs are subject to expiration, phase-outs, funding limitations, or policy changes, and some have already been reduced or eliminated in key markets.

Added

For example, the IRA and subsequent legislation, including the OBBBA, introduced significant changes to ITC eligibility and domestic content requirements. The Section 25D credit for residential solar and storage systems expired on December 31, 2025. In addition, the OBBBA imposes new timing requirements for eligibility under Section 48E of the Code, which governs ITCs for leased solar and storage systems. Specifically, solar-only projects that do not commence construction within 12 months of the OBBBA’s enactment must be placed in service by December 31, 2027 in order to remain eligible for the credit. Energy storage projects are not subject to this placed-in-service deadline; however, the ITC for storage systems will begin to phase down in 2034 — decreasing to 75% in 2034, 50% in 2035 and phasing out entirely by 2036. If we are unable to meet revised compliance thresholds or if these incentives are further reduced or eliminated, the cost competitiveness of our products may decline, which could reduce demand for our offerings, adversely affect our revenue and margins, and harm our business.

Removed

The market for on-grid applications, where solar power, on a standalone basis or paired with energy storage systems, is used to supplement a customer’s electricity purchased from the utility network or sold to a utility under tariff, depends in large part on the availability and size of government-issued subsidies and economic incentives that vary by geographic market. Because our customers’ sales of solar power are typically into the on-grid market, the reduction, elimination or expiration of government subsidies and economic incentives for on-grid solar electricity may negatively affect the competitiveness of rooftop solar electricity relative to centralized sources of electricity (including from conventional thermal or utility-scale renewable generation) and could harm or halt the growth of the solar electricity industry and our business.

Removed

National, state and local government bodies in many countries, including the United States, have provided incentives in the form of feed-in tariffs (“FiTs”), NEM tariffs and related policies, rebates, tax credits, tax incentives and others to system owners, distributors, system integrators and manufacturers of solar PV systems and battery energy storage systems to bolster the cost competitiveness of solar electricity in on-grid applications relative to the cost of utility power, and to reduce dependency on other forms of energy. Many of these government incentives expire, phase out over time, have limited funding allocations, that require renewal by the applicable jurisdictional authority, or are being changed by governments due to changing market circumstances or changes to national, state or local energy policy. Further, if the ITC, AMPTC, or any other existing tax credits or incentives are reduced or eliminated as part of futures changes to the U.S. Internal Revenue Code, or changes to state law or regulatory reform initiatives by subsequent legislative or executive actions, sales of our products in North America and other markets could be adversely affected.

Reworded

InOutside addition,the United States, several European countries, including Germany, Belgium, Italy, the NetherlandsAustria and the United Kingdom,Netherlands, have adopted reductions in or ended their NEM or FiT programs. Certain countries have proposed or enacted higher grid fees or taxes levied on renewable energy. These and related developments have significantly impacted the solar industry in Europe and may adversely affect the future demand for solar energy solutions in Europe,those which could adversely impact our results of operations.markets.

Reworded

Among other government-established incentives, NEM and related policies have supported the growth of on-grid rooftop solar products, and changes to such policies may reduce demand for electricity from our solar service offerings. NEM is a tariffed utility rate program that permits a consumer to sell the excess solar energy that the consumer’s solar panels produce to the electric utility company at a predetermined price. The most basic type of NEM tariff pays consumers the retail rate for electricity that their solar panels export to the grid, less certain “non-bypassable” fees paid by the consumer. However, certain states have sought to move away from retail rate NEM crediting for compensating excess solar generation. For example, in DecemberCalifornia, 2022,CPUC approved NEM 3.0, which substantially reduced the CPUC adopted a “NEM 3.0” policy, also known as the Net Billing Tariff,compensation that unbundlessolar exportcustomers compensationcan from retail rates and instead bases it on a tool called the Avoided Cost Calculator (“ACC”), which estimates the utility costs that are avoidedearn by exportsselling from distributed generation for each hour of the year. The CPUC did seek to ease the transition for theexcess solar market by adopting small “adders”energy to the electric grid. The average hourly ACC export valuesrate forunder NEM 3.0 is approximately $0.05/kWh to $0.08/kWh compared to the firstprior several yearsaverage of the$0.25/kWh tariff.to Nevertheless,$0.35/kWh theseunder ACC-basedNEM export compensation values are significantly lower than retail rates for most hours of the year and may therefore increase payback periods, and thereby reduce demand, for solar-only systems. Similarly, in November 2023, the2.0. CPUC also adopted changes to its “Virtual NEM” and “NEM Aggregation” programs that prohibit multi-meter commercial or agricultural property owners from netting solar energy generated at or adjacent to those properties against import charges recorded on the meters at the property, except for residential account holders in a multi-family residential property. These types of modifications to NEM policies have impacted and could further harm our business, both in California, where we have derived a significant portion of historical revenues in the United States, and in other state and national jurisdictions,jurisdictions if pursuedsimilar there.changes are adopted.

Reworded

Reductions in, or eliminations or expirations of, governmental incentives (including the ITC) or NEM policies in regions where we focusBecause our sales efforts could result in decreased demand for and lower revenue from solar PV systems, which would adversely affectcustomers’ sales of solar power are typically into the on-grid market, the reduction, elimination or expiration of government subsidies and economic incentives for on-grid solar electricity may negatively affect the competitiveness of rooftop solar electricity relative to centralized sources of electricity (including from conventional thermal or utility-scale renewable generation) and could harm or halt the growth of the solar electricity industry and our products.business. In addition, our ability to successfully penetrate new geographic markets may depend on new countries adopting and maintaining tax credits, tax incentives, NEM policies, or other programs to promote solar electricity and storage, to the extent such incentives or programs are not currently in place. Furthermore, electric utility companies may establish rate structures or interconnection requirements that could be harmful to the solar industry and adversely affect our sales.sales and our overall business.

Added

The inability of our products to comply with the minimum domestic content tax credit thresholds, inclusive of FEOC regulations, could negatively impact our business, financial condition and results of operations.

Added

Recent legislative and regulatory changes, including those introduced under the OBBBA and related executive actions, impose stricter domestic content requirements and FEOC restrictions on projects seeking to qualify for ITCs, AMPTC and other clean energy incentives. For example, projects commencing construction after June 16, 2025 must meet a 45% domestic cost threshold, and beginning in 2026, escalating non-FEOC content requirements will apply to solar and storage projects and to manufactured components.

Added

Our microinverters and residential battery systems incorporate components sourced globally, and certain critical parts may originate from suppliers located in jurisdictions that could be designated as FEOCs. If we are unable to meet these domestic content or non-FEOC compliance thresholds, our products may not qualify for applicable tax credits, including the AMPTC, which could reduce the attractiveness of our offerings to installers, developers and customers. Failure to comply with these requirements could adversely affect demand for our products, limit our ability to compete in key markets, and negatively impact our revenue, gross margins, business operations and competitive position. Furthermore, evolving guidance and definitions under the OBBBA create uncertainty, which may require us to adjust our supply chain strategy and increase compliance costs.

Added

Enphase Energy, Inc. | 2025 Form 10-K | 19

Added

•in the United States, our ability to comply with domestic content and non-FEOC requirements;

Removed

Enphase Energy, Inc. | 2024 Form 10-K | 18

Reworded

Competitors in the inverter market include, among others, SolarEdge, Huawei, Tesla, Sungrow Power Supply Co., Ltd., Growatt New Energy Co., Ltd and other companies offering string inverters with and without solar optimizers. Competitors in the storage market include Tesla, SolarEdge, Huawei, BYD, Franklin Solar Battery, and other producers of battery cells and integrated storage systems market. Competitors in the EV charger market include Wallbox, ChargePoint, Tesla, JuiceBoxTesla and EVBox,EVBox Group, among others.

Reworded

Several of our existing and potential competitors are significantly larger than we are and may have greater financial, marketing, distribution and customer support resources and may have significantly broader brand recognition, especially in certain markets. In addition, some of our competitors have more resources and experience in developing or acquiring new products and technologies and creating market awareness for these offerings. Further, certain competitors may be able to develop new products more quickly than we can and may be able to develop products that are more reliable or that provide more functionality than ours. In addition, some of our competitors have the financial resources to offer competitive products at aggressive or below-market pricing levels, which may have caused and could in the future cause us to lose sales or market share or require us to lower prices of our products in order to compete effectively. Suppliers of solar products, particularly solar modules, have experienced eroding prices over the last several years and as a result many have faced margin compression and Enphase Energy, Inc. | 2025 Form 10-K | 20 declining revenues. If we have to reduce our prices, or if we are unable to offset any future reductions in our average selling prices (“ASPs”) by increasing our sales volume, reducing our costs and expenses or introducing new products, our revenue and gross profit would suffer.

Removed

Enphase Energy, Inc. | 2024 Form 10-K | 19

Added

Changes in the United States trade environment, including the imposition of import tariffs, has and could adversely affect the amount or timing of our revenue, results of operations or cash flows.

Added

The United States has imposed significant new tariffs on nearly all products and components imported into the United States and could propose additional tariffs or increases to those already in place. A subset of our products is sourced from China and India, and certain components necessary to manufacture our products in the United States, including our microinverters, batteries and related accessories, are imported from China, India, Taiwan, Vietnam and Japan, among other countries. It is unknown whether and to what extent these tariffs will remain in place or if other new laws or regulations will be adopted. Due to broad uncertainty regarding the timing, content and extent of any regulatory changes in the United States or abroad, we cannot predict the impact, if any, that these changes could have to our business, financial condition and results of operations.

Added

It is unknown what effect any such new tariffs or retaliatory actions will have on the solar industry and our customers. We have moved a significant portion of our manufacturing to the United States, while retaining limited contract manufacturing in China and India. However, certain components necessary for our products are still required to be imported from outside the United States. Our LFP battery cells for our storage products are supplied solely via our two suppliers in China. Although we are in the process of searching for other vendors outside of China for future supplies, the expertise and industry for the LFP battery cell is primarily in China, and it will require significant effort to identify qualified suppliers with the right expertise to develop our battery cells. The resulting environment of retaliatory trade or other practices or additional trade restrictions or barriers, if implemented on a broader range of products or components from outside the United States, could harm our ability to obtain necessary product components or to sell our products at prices customers are willing to pay, which could have a material adverse effect on our business, prospects, results of operations and cash flows.

Added

Further, if the price of solar power systems in the United States increases, as well as the cost of manufacturing our products in the United States, the use of solar power systems could become less economically feasible and could reduce our gross margins or reduce the demand of solar power systems manufactured and sold, which in turn may decrease demand for our products. Additionally, existing or future tariffs may negatively affect key partners, suppliers and manufacturers. Such outcomes could adversely affect the amount or timing of our revenue, results of operations or cash flows, and continuing uncertainty could cause sales volatility, price fluctuations or supply shortages or cause our customers to advance or delay their purchase of our products. It is difficult to predict what further trade-related actions the U.S. and other governments may take, which may include additional or increased tariffs and trade restrictions, and we may be unable to quickly and effectively react to such actions. As additional new tariffs, legislation and/or regulations are implemented, or if existing trade agreements are renegotiated or if affected countries take retaliatory trade actions, such changes could have a material adverse effect on our business, financial condition, results of operations or cash flows.

Added

Trade disputes, trade restrictions, tariffs and other geopolitical tensions between the United States and other countries may also exacerbate unfavorable macroeconomic conditions including inflationary pressures, foreign exchange volatility, financial market instability, and economic recessions or downturns, which may also Enphase Energy, Inc. | 2025 Form 10-K | 21 negatively impact customer demand for our products or services, delay purchases or renewals, limit expansion opportunities with customers, limit our access to capital, or otherwise negatively impact our business and operations. Ongoing tariff, trade restrictions and macroeconomic uncertainty has and may continue to contribute to volatility in the price of our common stock.

Added

We continue to develop new generations of our IQ Microinverters, IQ Batteries and EV charging products for both the residential and small commercial market. Developing new products or next generation products is complex and requires significant preparation, precautionary safety measures, time-consuming string calculations, extensive design expertise and specialized installation equipment, training and knowledge. Together, these factors significantly increase complexity and cost of installation and limit overall productivity for the installer. Our installers may not have sufficient resources or expertise necessary to sell our products at the prices, in the volumes and within the time frames that we expect, which could hinder our ability to expand our operations and harm our revenue and operating results.

Added

We outsource the manufacturing of some of our products to third-party contract manufacturers. These outside manufacturers assemble and test our IQ Microinverter, IQ Battery storage systems, EV chargers and IQ Gateway products. Prices for such services are agreed to by the parties on a quarterly basis, and we are obligated to purchase manufactured products and raw materials that cannot be resold upon the termination of the related agreement. As of December 31, 2025, our related purchase obligations (including amounts related to component inventory procured by our primary contract manufacturers on our behalf) were approximately $252.3 million. The timing of purchases in future periods could differ materially from our estimates due to fluctuations in demand requirements related to varying sales levels as well as changes in economic conditions.

Added

Enphase Energy, Inc. | 2025 Form 10-K | 22

Added

We depend on solar distributors, installers and providers of solar financing to assist in selling our products to customers, and if they fail to perform at the expected level, or at all, our business, financial condition and results of our operations could be harmed.

Added

We primarily sell our solutions through solar distributors, as well as directly to solar equipment installers and developers of third-party solar finance offerings (such as TPOs). These relationships with third parties are generally non-exclusive. As a result, many of these third parties, or customers, also use or market and sell products from our competitors, which may reduce our sales. These customers may generally terminate their relationships with us at any time, or with short notice, and further may fail to devote the resources necessary to sell our products at the prices, in the volumes and within the time frames that we expect, or may focus their marketing and sales efforts on products of our competitors. In addition, participants in the solar industry are becoming increasingly focused on vertical integration of the solar financing and installation process, which may lead to an overall reduction in the number of potential parties who may purchase and install our products.

Added

We typically provide our distributors and installers with training and other programs, including accreditations and certifications; however, these programs may not be effective or utilized consistently. Further, newer distributors and installers may require extensive training and may take significant time and resources to achieve productivity. Our distributors and installers may subject us to lawsuits, potential liability and reputational harm if, for example, any were to misrepresent the functionality of our platform or products to customers, improperly install our products, fail to perform services to our customers’ expectations, or violate laws or our policies. In addition, our distributors and installers may utilize our platform to develop products and services that could potentially compete with products and services that we offer currently or in the future. Concerns over competitive matters or intellectual property ownership could constrain the growth and development of these relationships or result in the termination of one or more relationships. If we fail to effectively manage and grow our network of distributors and installers, or properly monitor the quality and efficacy of their service delivery, our ability to sell our products and efficiently provide our services may be impacted, and our operating results may be harmed.

Added

Our future performance depends on our ability to effectively manage our relationships with our existing customers, as well as to attract additional customers that will be able to market and support our products effectively, especially in markets in which we have not previously distributed our products. Market dynamics are creating increased risks, as the solar industry is increasingly moving toward third-party ownership models such as leasing and power purchase agreements. With the enactment of the OBBBA, these models may become predominant, reducing demand for direct purchases from installers. If we fail to adapt to these trends, or if customers terminate agreements, experience financial distress, or fail to perform, our revenue and operating results could be materially harmed.

Added

Enphase Energy, Inc. | 2025 Form 10-K | 23

Added

The manufacturing and packaging processes used by us and our contract manufacturers depend on raw materials such as copper, aluminum, silicon and petroleum-based products. From time to time, suppliers may extend lead times, limit supplies or increase prices due to capacity constraints or other factors. Certain of our suppliers have the ability to pass along to us directly or through our contract manufacturers any increases in the price of raw materials. If the prices of these raw materials rise significantly, we may be unable to pass on the increased cost to our customers. While we may from time to time enter into hedging transactions to reduce our exposure to wide fluctuations in the cost of raw materials, the availability and effectiveness of these hedging transactions may be limited. Due to all these factors, our results of operations could be adversely affected if we or our contract manufacturers are unable to obtain adequate supplies of raw materials in a timely manner or at reasonable cost. In addition, from time to time, we or our contract manufacturers may need to reject raw materials that do not meet our specifications, resulting in potential delays or declines in output. Furthermore, problems with our raw materials may give rise to compatibility or performance issues in our products, which could lead to an increase in product warranty claims. Errors or defects may arise from raw materials supplied by third parties that are beyond our detection or control, which could lead to additional product warranty claims that may adversely affect our business and results of operations.

Reworded

We currently offer solar energy systems targeting the residential and commercial markets throughout the world, and we intend to continue to expand into other international markets. Our success in new geographic and product markets will depend on a number of factors, such as:

Removed

We continue to develop new generations of our IQ Microinverters, IQ Batteries and EV charging products. Developing new products or next generation products is complex and requires significant preparation, precautionary safety measures, time-consuming string calculations, extensive design expertise and specialized installation equipment, training and knowledge. Together, these factors significantly increase complexity and cost of installation and limit overall productivity for the installer. Our installers may not have sufficient resources or expertise necessary to sell our products at the prices, in the volumes and within the time frames that we expect, which could hinder our ability to expand our operations and harm our revenue and operating results.

Removed

Enphase Energy, Inc. | 2024 Form 10-K | 20

Removed

We do not have internal manufacturing capabilities and rely upon a small number of contract manufacturers to build our products. In particular, we outsource the manufacturing of our products to third-party contract manufacturers. Flex, Salcomp and Sunwoda assemble and test our IQ Microinverter, IQ Battery storage systems, EV chargers and IQ Gateway products. Prices for such services are agreed to by the parties on a quarterly basis, and we are obligated to purchase manufactured products and raw materials that cannot be resold upon the termination of the related agreement. As of December 31, 2024, our related purchase obligations (including amounts related to component inventory procured by our primary contract manufacturers on our behalf) were approximately $130.9 million. The timing of purchases in future periods could differ materially from our estimates due to fluctuations in demand requirements related to varying sales levels as well as changes in economic conditions.

Removed

Flex also provides receiving, kitting, storage, transportation, inventory visibility and other value-added logistics services at locations managed by Flex. In addition, we rely on several unaffiliated companies to supply certain components used in the fabrication of our products.

Removed

We rely primarily on distributors, installers and providers of solar financing to assist in selling our products to customers, and the failure of these customers to perform at the expected level, or at all, would have an adverse effect on our business, financial condition and results of our operations.

Removed

We sell our solutions primarily through distributors, as well as through direct sales to solar equipment installers and developers of third-party solar finance offerings. We do not have exclusive arrangements with these third parties. As a result, many of these third parties, or customers, also use or market and sell products from our competitors, which may reduce our sales. These customers may generally terminate their relationships with us at any time, or with short notice, and further may fail to devote the resources necessary to sell our products at the prices, in the volumes and within the time frames that we expect, or may focus their marketing and sales efforts on products of our competitors. In addition, participants in the solar industry are becoming increasingly focused on vertical integration of the solar financing and installation process, which may lead to an overall reduction in the number of potential parties who may purchase and install our products.

Removed

We typically provide our distributors and installers with training and other programs, including accreditations and certifications; however, these programs may not be effective or utilized consistently. Further, newer distributors and installers may require extensive training and may take significant time and resources to achieve productivity. Our distributors and installers may subject us to lawsuits, potential liability and reputational harm if, for example, any were to misrepresent the functionality of our platform or products to customers, fail to perform services to our customers’ expectations, or violate laws or our policies. In addition, our distributors and installers may utilize our platform to develop products and services that could potentially compete with products and services that we offer Enphase Energy, Inc. | 2024 Form 10-K | 21 currently or in the future. Concerns over competitive matters or intellectual property ownership could constrain the growth and development of these relationships or result in the termination of one or more relationships. If we fail to effectively manage and grow our network of distributors and installers, or properly monitor the quality and efficacy of their service delivery, our ability to sell our products and efficiently provide our services may be impacted, and our operating results may be harmed.

Removed

Our future performance depends on our ability to effectively manage our relationships with our existing customers, as well as to attract additional customers that will be able to market and support our products effectively, especially in markets in which we have not previously distributed our products. Termination of agreements with current customers, failure by customers to perform as expected, bankruptcies of our customers or their installer customers, or failure by us to cultivate new customer relationships, could hinder our ability to expand our operations and harm our revenue and operating results.

Removed

The manufacturing and packaging processes used by our contract manufacturers depend on raw materials such as copper, aluminum, silicon and petroleum-based products. From time to time, suppliers may extend lead times, limit supplies or increase prices due to capacity constraints or other factors. Certain of our suppliers have the ability to pass along to us directly or through our contract manufacturers any increases in the price of raw materials. If the prices of these raw materials rise significantly, we may be unable to pass on the increased cost to our customers. While we may from time to time enter into hedging transactions to reduce our exposure to wide fluctuations in the cost of raw materials, the availability and effectiveness of these hedging transactions may be limited. Due to all these factors, our results of operations could be adversely affected if we or our contract manufacturers are unable to obtain adequate supplies of raw materials in a timely manner or at reasonable cost. In addition, from time to time, we or our contract manufacturers may need to reject raw materials that do not meet our specifications, resulting in potential delays or declines in output. Furthermore, problems with our raw materials may give rise to compatibility or performance issues in our products, which could lead to an increase in product warranty claims. Errors or defects may arise from raw materials supplied by third parties that are beyond our detection or control, which could lead to additional product warranty claims that may adversely affect our business and results of operations.

Removed

Enphase Energy, Inc. | 2024 Form 10-K | 22

Added

Enphase Energy, Inc. | 2025 Form 10-K | 24

Reworded

A disruption could also occur in one of our contract manufacturers’ facilities due to any number of reasons, such as equipment failurefailure, contaminated materials, process deviations, the effects of climate change and related extreme weather events, or social, geopolitical or health factors, including pandemics or widespread health epidemics such as the COVID-19 pandemic, which could adversely impact manufacturing yields or delay product shipments. In addition, we may face periods of constrained supply for key components necessary for the manufacture of our products. A constrained supply environment could affect component availability, lead times and cost and could increase the likelihood of unexpected cancellations or delays of previously committed supply of key components. As a result, we could incur additional costs that would adversely affect our gross profit, and product shipments to our customers could be delayed beyond the schedules requested, which would negatively affect our revenue, competitive position and reputation.

Removed

Challenges relating to supply chain constraints, including with respect to raw materials, semiconductors and integrated circuits, could adversely impact our revenue, gross margins and results of operations.

Removed

In times of increased demand, the global supply market for certain raw materials and components, including, in particular, semiconductors, integrated circuits and other electronic components used in some of our products, has experienced significant constraint and disruption. A constrained supply environment could affect component availability, lead times and cost and could increase the likelihood of unexpected cancellations or delays of previously committed supply of key components. To mitigate these risks, we may in the future and have in the past incurred higher costs to secure available inventory, have extended our purchase commitments and placed non-cancellable, advanced orders with or through suppliers, particularly for long lead time components. Our efforts to expand our manufacturing capacity and multi-source and pre-order components may fail to reduce the impact of these adverse supply chain conditions on our business.

Removed

Despite any mitigation efforts, constrained supply conditions may adversely impact our revenue and results of operations. At the same time, increased costs associated with supply premiums, labor, expediting fees and freight and logistics may adversely impact our gross margin, profitability and ability to reduce the cost to manufacture our products in a manner consistent with prior periods. In the past, the COVID-19 pandemic and regional conflicts and wars has also contributed to and exacerbated the strain on our supply chain, and there can be no assurance that these types of impacts will not continue, or worsen, in the future. Increased supply chain challenges could also result in increased use of cash, engineering design changes and delays in new product introductions, each of which Enphase Energy, Inc. | 2024 Form 10-K | 23 could adversely impact our business and financial results. In the event of any persistent supply chain challenges, these challenges would adversely impact our revenue, gross margins and results of operations.

Reworded

Our customers’ decisions to purchase our products are influenced by a number of factors outside of our control, including, among others, retail energy prices, the macroeconomic environment, government regulation, incentives and liquidity constraints of solar installers. Although we have agreements with our customers, these agreements generally do not have long-term purchase commitments and are generally terminable by either party after a relatively short notice period. In addition, these customers may decide to no longer use, or to reduce the use of, our products and services for other reasons that may be out of our control. We may also be affected by events impacting our large customers that result in them decreasing their orders with us or impairing their ability to pay for our products, whether due to a decrease in demand from the end markets they serve or the deterioration in the financial condition or bankruptcy of any such customer or the solar installers they resell to, or a significant decrease in their business. During the year ended December 31, 2024, one of our customers filed for bankruptcy under Chapter 11 of the United States Bankruptcy Code. We evaluated the carrying amount of a customer intangible asset related to that customer and determined that the carrying amount of the asset as of December 31, 20242025 is recoverable. Additionally,However, netthe accounts receivable related to that customer of allowance$6.2 formillion creditwas losseswritten-off asduring ofthe year ended Enphase Energy, Inc. | 2025 Form 10-K | 25 December 31, 2024, included $6.2 million that relates to the one customer.2025. We regularly monitor and evaluate the credit status of our customers and attempt to adjust sales terms as appropriate, which may not be successful. The loss of, or events affecting, any of our large customers has had from time to time, and could in the future have a material adverse effect on our business, financial condition and results of operations.

Reworded

We design and make complex products and they may contain undetected or latent errors or defects. Complex hardware and software systems, such as our products, can often contain undetected errors when first introduced or as new versions are released. In the past, we have experienced latent defects only discovered once the microinverters or batteries are deployed in the field. Changes in our supply chain or the failure of our suppliers to otherwise provide our Texas manufacturing facility or our third-party contract manufacturers with components or materials that meet our specifications could introduce defects into our products. As we grow our product volumes, the chance of manufacturing defects could increase. In addition, new product introductions or design changes made for the purpose of cost reduction, performance improvement or improved reliability could introduce new design defects that may impact the performance and life of our products. Any design or manufacturing defects or other failures of our products to perform as expected could cause us to incur significant service and re-engineering costs, divert the attention of our engineering personnel from product development efforts and significantly and adversely affect installer and customer satisfaction, market acceptance and our business reputation. Furthermore, if we are unable to correct manufacturing defects or other failures of products in a manner satisfactory to our customers, our results of operations, customer satisfaction and our business reputation could be adversely affected.

Removed

Enphase Energy, Inc. | 2024 Form 10-K | 24

Reworded

If we fail to retain our key personnel or if we fail to attract additional qualified personnel, we may not be able to maintain or achieve our anticipated level of growth and our business could suffer.

Reworded

All of our employees, including our senior management, are free to terminate their employment relationships with us at any time. Competition for highly skilled executives and employees in the technology industry is intense, and our competitors have targeted individuals in our organization that have desired skills and experience. If we are not able to continue to attract, train and retain our leadership team and our qualified employees necessary for our business, the progress of our product development programs could be hindered, and we could be materially adversely affected. To help attract, retain and motivate our executives and qualified employees, we use stock-based incentive awards, including restricted stock units. If the value of such stock awards does not appreciate as measured by the performance of the price of our common stock, or if our share-based compensation otherwise ceases to be viewed as a valuable benefit, our ability to attract, retain and motivate our executives and employees could be weakened, which could harm our business and results of operations. Also, if the value of our stock awards Enphase Energy, Inc. | 2025 Form 10-K | 26 increases substantially, this could potentially create substantial personal wealth for our executives and employees and affect our ability to retain our personnel. In addition, any restructuring plans may adversely impact our ability to attract and retain key employees.

Reworded

We have taken steps, including reducing our global workforce, streamlining our operations and internal reorganizations, to increase operational efficiencies and execution, reduce operating costs, and better align our workforce and cost structure with current market condition.conditions. We may take similar steps in the future as we seek to realize operating synergies, meet our strategic priorities and profitability objectives, or to reflect more closely changes in our business needs. These changes could be disruptive to our business, including our research and development efforts, and could result in significant expense, including accounting charges for inventory and technology-related write-offs, workforce reduction costs and charges relating to consolidation of excess facilities. Substantial expense or charges resulting from restructuring activities could adversely affect our results of operations and use of cash in those periods in which we undertake such actions.

Reworded

Our business has experienced periods of rapid growth,growth in the past, and in the future, we may continue to grow our business rapidly. Growth in our business could place significant demands on our management, operations, systems, accounting, internal controls and financial resources, and it may also negatively impact our ability to retain key personnel. If we experience difficulties in any of these or other areas, we may not be able to expand our business successfully or effectively manage our growth. Any failure by management to manage our growth and to respond to changes in our business could have a material adverse effect on our business, financial condition and results of operations.

Removed

Enphase Energy, Inc. | 2024 Form 10-K | 25

Reworded

If we are unsuccessful in continuing to expand our direct-to-consumer sales channel by driving purchases through our website,website or third-party websites, our business and results of operation could be harmed.

Reworded

Although we primarily sell our solutions and products directly to solar distributors, who resell to installers and integrators, and the developers of third-party solar financing offerings, who then in turn integrate our products into complete solar PV installations for residential and commercial system owners, we have recently invested significant resources in our direct-to-consumer sales channel through our website,website and third-party websites, and our future growth relies, in part, on our ability to attract consumers through this channel. Expanding our direct-to-consumer sales model will require significant expenditures in marketing, software development and infrastructure. Further, the success of direct-to-consumer sales through our website is also subject to general business regulations and laws, as well as federal, state, foreign and provincial regulations and laws specifically governing the internet and e-commerce.e- Enphase Energy, Inc. | 2025 Form 10-K | 27 commerce. These regulations and laws may cover taxation, tariffs, privacy, data protection, pricing, distribution, electronic contracts and other communications, consumer protection and intellectual property. These laws and regulations can be complex, difficult to interpret and may change over time. Continued regulatory limitations and other obstacles interfering with our ability to sell our products directly to consumers could have a negative and material impact our business, prospects, financial condition and results of operations.

Reworded

We are dependent on information technology systems, infrastructure and data. We or third parties upon whichwhom we relyinteract with could be subject to breaches of our information technology systems caused by system security risks, failure of our data protection, cyber-attacks and erroneous or non-malicious actions or failures to act by our employees or others with authorized access to our networks,others, which could cause significant reputational, legal and financial damages.

Reworded

Like many companies, in the ordinary course of business we process, useuse, transfer, generate, disclose, secure, transmit and store a wide variety of confidential and proprietary information including personal information and other sensitive information relating to our business, products and services. The secure maintenance of this information is critical to our business and reputation. Despite our implementation of security measures, our systems are vulnerable to damages from computer viruses, computer denial-of-service attacks, ransomware, supply chain attacks, worms and other malicious software programs or other attacks, covert introduction of malware to computers and networks, unauthorized access, including impersonation of authorized users, social-engineering attacks (including through deep fakes, which may be increasingly more difficult to identify as fake, and phishing attacks), efforts to discover and exploit any security vulnerabilities or securities weaknesses and other similar issues and disruptions. In particular, severe ransomware attacks are becoming increasingly prevalent – particularly for companies like ours that interact with critical infrastructure or manufacturing – and can lead to significant interruptions in our operations, and ability to provide our products or services. Although we make significant efforts to maintain the security, availability,confidentiality, integrity and confidentialityavailability of our information technology and related systems Enphase Energy, Inc. | 2024 Form 10-K | 26 and have implemented measures to manage the risk of a security breach or disruption, there can be no assurance that our security efforts and measures will be effective, or that attempted security breaches or disruptions would not be successful or damaging.

Reworded

Remote work hasfor becomesome moreworkers common and haspresents increased risks to our information technology and related systems, as morethese of our employeesworkers utilize network connections, computers and devices outside our premises or network, including working at home, while in transit and in public locations.

Reworded

The techniques used in attempted cyber-attacks and intrusions are sophisticated and constantly evolving and may be difficult to detect for long periods of time. Recent techniques include artificial intelligence (“AI”) tools and coordinated attacks, which increases the volume and sophistication of cybersecurity attacks. We may be unable to anticipate these techniques or implement adequate preventative measures. Although to date we haveare not experiencedaware of any material breaches of our systems that could have material adverse effect on our business, attacks and intrusions on our systems will continue and we may experience a breach of our systems that compromises sensitivevaluable company information or customer data including personal information. In addition, hardware, software, or applications we develop or procure from third parties may contain defects in design or manufacture or other problems that could unexpectedly compromise information security. Intentional or non-malicious breaches by employees or others may pose a risk that sensitivevaluable data, including our intellectual property, trade secrets or personal information of our employees, customers or users, or other business partners may be exposed to unauthorized persons or to the public, or that risks of loss or misuse of this information could occur. Furthermore, if we experience a significant data security breach, we could be exposed to reputational damage and significant costs, including to rebuild our systems, modify our products and services, defend litigation, respond to government enforcement actions, pay damages or take other remedial steps, any of which could adversely affect our business, results of operations and financial condition. In addition, we may be required to incur significant costs to protect against Enphase Energy, Inc. | 2025 Form 10-K | 28 damage caused by these disruptions or security breaches in the future. These risks, as well as the number and frequency of cybersecurity events globally, may also be heightened during times of geopolitical tension or instability.

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Management's Discussion & Analysis (MD&A) (10-K Item 7)

33new paragraphs
20removed paragraphs
37reworded paragraphs
7,809 → 8,468words in section

Largest changes (selected automatically by length and topic keywords; quoted verbatim, no commentary)

Removed text topics: bankruptcy, liquidity
“Demand for Products. The demand environment for our products experienced a broad-based slowdown beginning in the second quarter of 2023 in the United States and in the third quarter of 2023 in Europe that continued into 2024. This demand environment has negatively impacted several distributors and installers, resulting in reduced liquidity, bankruptcy and business closures, which has affected our revenue and profitability, days sales outstanding and allowances for credit losses. …”
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Removed text topics: impairment, restructuring
“Restructuring and asset impairment charges are the net charges resulting from restructuring initiatives implemented in 2023 and 2024 to increase operational efficiencies, reduce operating costs, and to better align our workforce and cost structure with current market conditions, our business needs, and strategic priorities. …”
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New text topics: tariff, liquidity
“Demand for Products. The prolonged softness in demand in the solar industry has continued to adversely impact certain distributors and installers, contributing to reduced liquidity, bankruptcies and business closures across the channel. These disruptions have negatively affected our revenue and profitability and could result in higher allowances for credit losses in the future. In Europe, the overall business environment across the region is still challenging, and is expected to remain constrained in 2026. …”
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New text topics: impairment, restructuring
“Restructuring and asset impairment charges of $7.1 million in the year ended December 31, 2025, primarily consisted of $5.2 million of employee related expenses, $1.7 million of asset impairment charges and $0.2 million of contract termination charges. Restructuring and asset impairment charges of $13.2 million the year ended December 31, 2024, primarily consisted of $6.4 million of employee severance, one-time benefits and other employee related expenses, $2.0 million of contract termination charges and $4.8 million of asset impairment charges.”
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Removed text topics: liquidity, interest rate
“We expect that our principal short-term (over the next 12 months) cash needs related to our operations will be to fund working capital, strategic investments, acquisitions, repurchases of common stock and payments of withholding taxes for net share settlement of employee equity awards, payments on our outstanding debt and purchases of property and equipment. We plan to fund any cash requirements for the next 12 months from our existing cash, cash equivalents and marketable securities on hand, and cash generated from operations. …”
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Removed text topics: penalt, interest rate
“In the United States, this slowdown was primarily the result of higher interest rates, high channel inventory and the transition from NEM 2.0 to NEM 3.0 in California. Higher interest rates resulted in larger monthly costs and longer pay-back periods for those customers who financed their systems. In Europe, this slowdown was primarily driven by a softer customer demand as utility rates dropped and policy changes were implemented. This resulted in oversupply, financial stresses throughout the industry and the resulting channel inventory correction. …”
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Reworded

We are a global energy technology company. We deliver smart, easy-to-use solutions that manage solar generation, storage and communication on one platform. Our intelligent microinverters work with virtually every solar panel made, and when paired with our smart technology, result in one of the industry’s best-performing clean energy systems. As of December 31, 2024,2025, we have shipped approximately 80.086.4 million microinverters, and approximatelymore 4.7than 5.1 million Enphase residential and commercial systems have been deployed in more thanover 160 countries.

Reworded

We sell primarily to solar distributors who combine our products with others, including solar module products and racking systems, and resell to installers in each target region. In addition to our solar distributors, we sell directly to select large installers, OEMs and strategic partners. Our OEM customers include solar module manufacturers who integrate our microinverters with their solar module products and resell to both distributors and installers. Strategic partners include providersa variety of companies, including industrial equipment suppliers, module companies, energy suppliers and developers of third-party solar financingfinance solutions.offerings (such as TPOs). We also sell certain products and services to homeowners primarily in support of our warranty services and legacy product upgrade programs, via our online store.

Added

During fiscal year 2025, our priorities included providing excellent customer service; scaling U.S. manufacturing and advancing product qualification to take advantage of both the Section 48E investment tax credit and the AMPTC under Section 45X of the Code; enhancing our Enphase Energy System offering through continued product innovation and system integration; broadening our ecosystem capabilities through collaboration with utilities and the development of VPPs; strengthening partnerships with installers and TPOs through safe harbor agreements; and increasing operating efficiencies while reducing costs.

Added

Enphase Energy, Inc. | 2025 Form 10-K | 49

Removed

During the fiscal year 2024, our priorities included providing great customer service, scaling business processes, increasing efficiencies, reducing operating costs and the ongoing development of hardware and software to enhance our Enphase Energy System offering. Quality, customer service and innovation are cornerstones of our strategy, and we believe our focus on these priorities will continue to help drive our success going forward.

Reworded

To reducemitigate supply chain riskrisks and taketariff advantageexposure and to leverage U.S. manufacturing incentives, we continued to operate our domestic manufacturing footprint, including our in‑house manufacturing facility and our partnership with Flex. These arrangements maintained a combined manufacturing capacity of newapproximately incentives for domestic manufacturing, we expanded our operations with contract manufacturers in the United States with a capacity to produce five millionfive-million microinverters per quarter. Beginning in the second half of 2024, we began shipping residential and commercial microinverters,microinverters and batteries,batteries with higher domestic content from our U.S. contractmanufacturing manufacturers,facilities, which are expected to help certain solar and battery projects qualify for the domestic content bonus tax credit. The domestic content bonus tax credit is only available to commercial asset owners, which includes commercial businesses adding solar and PPApower purchase agreements/lease providers who own residential solar projects.

Removed

We also expanded deployments of our IQ8 series Microinverters into many new regions globally, including shipments of IQ8 Microinverters with higher peak output AC power to support newer, high-powered solar modules. We began shipping our third-generation Enphase Energy System with IQ Battery 5P in several new markets globally. We also launched IQ Battery 5P in India with the IQ System Controller, enabling backup power in a region with frequent outages.

Reworded

Global Events Affecting our Business and Operations

Added

One Big Beautiful Bill Act. In July 2025, the OBBBA was enacted, introducing material changes to clean energy tax credit programs that are significant to our business and may impact our financial condition, results of operations and future prospects.

Added

The OBBBA scales back the ITC available under Section 25D of the Code for residential solar and storage systems purchased through cash or loans. Under the new law, the Section 25D credit expired on December 31, 2025. In addition, the OBBBA imposes new timing requirements for eligibility under Section 48E of the Code, which governs ITCs for leased solar and storage systems. Specifically, solar-only projects that do not commence construction within 12 months of the OBBBA’s enactment must be placed in service by December 31, 2027 in order to remain eligible for the credit. Energy storage projects are not subject to this placed-in-service deadline; however, the ITC for storage systems will begin to phase down in 2034 — decreasing to 75% in 2034, 50% in 2035 and phasing out entirely by 2036.

Added

The OBBBA also amends the domestic content bonus credit rules for Section 48E projects. Projects commencing construction after June 16, 2025 must meet a 45% domestic cost threshold, up from 40%.

Added

Additionally, the OBBBA introduces new compliance requirements under the FEOC provisions for both Section 48E and the AMPTC under Section 45X. These provisions establish an escalating threshold of non-FEOC content that must be met by solar and storage projects beginning construction in 2026 and by manufactured components produced beginning in 2026.

Added

On July 7, 2025, the President issued an Executive Order directing the Secretary of the Treasury to issue updated guidance within 45 days on the “beginning of construction” requirements applicable to Section 48E projects. In August 2025, Treasury and the IRS issued revised “beginning of construction” guidance for clean energy tax credits that only applies to projects above 1MW. The Executive Order also requires the Secretary to implement the FEOC restrictions set forth in the OBBBA. Additional guidance around FEOC guidance is still forthcoming and is expected to be finalized in 2026, which could make existing requirements more stringent.

Added

These legislative and regulatory developments have impacted and may in the future negatively impact our eligibility for certain tax credits, the attractiveness of our offerings to solar and storage system lease providers, or the overall demand for our products. If we are unable to meet the revised domestic content or FEOC requirements, our ability to qualify for these incentives could be impaired, which may adversely affect our revenue, gross margins, business operations and competitive position.

Added

Trade Tariff Uncertainties. The impact of new or existing tariff, trade restrictions or retaliatory actions on us, the solar industry and our customers continue to create uncertainty and impact on our business operations. We have relocated a significant portion of our manufacturing to the United States while continuing to utilize contract manufacturing in China and India. However, certain critical components for our products are still sourced from outside the United States.

Added

For example, LFP battery cells used in our energy storage systems are still supplied exclusively by two vendors located in China. While we are actively exploring alternative suppliers outside of China, the global supply chain for LFP battery cells remains heavily concentrated in China, and identifying qualified suppliers with the necessary expertise and capacity remains challenging.

Removed

Demand for Products. The demand environment for our products experienced a broad-based slowdown beginning in the second quarter of 2023 in the United States and in the third quarter of 2023 in Europe that continued into 2024. This demand environment has negatively impacted several distributors and installers, resulting in reduced liquidity, bankruptcy and business closures, which has affected our revenue and profitability, days sales outstanding and allowances for credit losses. The slower demand environment also resulted in elevated inventory with distributors and installers in late 2023 and the first half of 2024, and as a result we sold fewer microinverters to distributors and installers during the year ended December 31, 2024 compared to the same period in 2023.

Added

An escalation in trade tensions or the implementation of broader tariffs, trade restrictions or retaliatory measures on our products or components originating from countries outside the United States could adversely impact our ability to source necessary components, manufacture products at competitive cost, or sell our products at prices customers are willing to pay. Any such developments could materially and adversely affect our business operations, results of operations and cash flows.

Added

Safe Harbor Agreements. During the year ended December 31, 2025, we entered into multiple safe harbor agreements with customers, including solar and battery financing companies that offer TPO arrangements to homeowners, such as leases and power purchase agreements. These agreements reflect our increasing engagement in the TPO segment, which we expect to be an important growth channel for U.S. residential solar and battery adoption following the expiration of the ITC available under Section 25D of the Code on December 31, 2025. The timing and structure of these safe harbor transactions have resulted in higher variability in our quarterly revenue recognition and overall financial performance.

Added

Demand for Products. The prolonged softness in demand in the solar industry has continued to adversely impact certain distributors and installers, contributing to reduced liquidity, bankruptcies and business closures across the channel. These disruptions have negatively affected our revenue and profitability and could result in higher allowances for credit losses in the future. In Europe, the overall business environment across the region is still challenging, and is expected to remain constrained in 2026. In the United States, uncertainty related to changes in legislation, including from the OBBBA, which eliminates or reduces existing tax credits for clean energy programs, as well as evolving U.S. trade and tariff policies, may further contribute to market volatility and adversely impact customer demand for our products, pricing and our financial performance.

Removed

In the United States, this slowdown was primarily the result of higher interest rates, high channel inventory and the transition from NEM 2.0 to NEM 3.0 in California. Higher interest rates resulted in larger monthly costs and longer pay-back periods for those customers who financed their systems. In Europe, this slowdown was primarily driven by a softer customer demand as utility rates dropped and policy changes were implemented. This resulted in oversupply, financial stresses throughout the industry and the resulting channel inventory correction. In addition, there has been increased uncertainty in NEM policies and solar export penalties in a key European market. The phase out of NEM in that market was ultimately not approved but solar export penalties are still causing uncertainty among consumers. While we believe we have made the appropriate corrections to our channel inventory, some of the foregoing trends in the United States and Europe could continue to have an adverse effect on our results of operations in 2025.

Reworded

We generate revenue from the sale of our various solutions,products, which include microinverter units and related accessories, IQ Battery and related accessories, IQ PowerPack 1500 and related accessories, EV charging solutions, IQ Combiner, IQ Gateway and IQ Energy Router, as well as from the sale of services, which include cloud-based monitoring services, EV charging solutions, design, proposal, permitting, installation and leadsolar appointment generation services, as well as a platform matching cleantech asset owners to a local and on-demandEnphase workforceCare of service providers, distributors, large installers, OEMs and strategic partners.services.

Reworded

Our revenue is affected by changes in the volume and average selling prices (“ASPs”) of our various solutions and related accessories, supply and demand, sales incentives, government incentives and competitive product offerings. Our revenue growth is dependent on our ability to compete effectively in the marketplace by remaining cost competitive, macroeconomic conditions, favorable regulatory environment, developing and introducing new products that meet the changing technology,technology and the performance requirements of our customers, the diversification and expansion of our revenue base, and our ability to market our products in a manner that increases awareness for microinverter technology and differentiates us in the marketplace.

Reworded

Cost of revenues is comprised primarily of product costs, warranty, manufacturing and installation servicesservices, support personnel, logistics costs, freight costs, inventory write-downs, hosting services costs related to our cloud-based monitoring services, depreciation of manufacturing and test equipment, amortization of capitalized software development costs related to our cloud-based monitoring services, lead acquisition costs and design and proposal services, employee-related expenses associated with proposal and permitting services and design and proposal service customer support. AMPTC earned under the IRA for U.S. manufactured microinverters shipped to customers in the years ended December 31, 2024 and 2023 are treated as a reduction to cost of revenues.

Reworded

Our product costs are impacted by technological innovations, such as advances in semiconductor integration and new product introductions, economies of scale resulting in lower component costs, and improvements in production processes and automation. Certain costs, primarily personnel and depreciation and amortization of test equipment and capitalized software development costs, are not directly affected by sales volume.

Added

Enphase Energy, Inc. | 2025 Form 10-K | 51

Reworded

We outsource some of our manufacturing to third-party contract manufacturers and generally negotiate product pricing with them on a quarterly basis. We believe our contract manufacturing partners have sufficient production capacity to meet the anticipated demand for our products for the foreseeable future. However, shortages in the supply of certain key raw materials could adversely affect our ability to meet customer demand for our products. We contract with third parties, including one of our contract manufacturers, to serve as our logistics providers by warehousing and delivering our products in the United States, Canada, Mexico, Europe, Australia, New Zealand, India, Brazil, the Philippines, Thailand, South Africa, and certain other Central American and Asian countries.

Removed

Enphase Energy, Inc. | 2024 Form 10-K | 50

Reworded

Sales and marketing expense includes personnel-related expenses, travel, trade shows, marketing, customer support and other indirect costs. We expect to continue to make the necessary investments to enable us to execute our strategy to increase our market penetration geographically and enter into new markets by expanding our customer base of distributors, large installers, OEMs and strategic partners. We currently offer solutions targeting the residential and commercial markets in the United States, Canada, Mexico, Puerto Rico, Europe, Australia, New Zealand, India, Brazil, the Philippines, Thailand, South Africa, Central America, the Caribbean and certain Asian countries. We expect to continue to expand the geographic reach of our product offerings and explore new sales channels in addressable markets in the future.

Reworded

General and administrative expense includes personnel-related expenses for our executive, finance, human resources, information technology and legal organizations, facilities costs, and fees for professional services. Fees for professional services consist primarily of outsideexternal legal, accounting and information technology consulting costs.

Reworded

Restructuring and asset impairment charges are the net charges resulting from restructuring initiatives implemented in 2022, 2023 and 2024 to increase operational efficiencies and execution, reduce operating costs, and better align our workforce and cost structure with current market conditions, as well as reflect our business needs, strategic priorities and ongoing commitment to profitable growth. Charges from the restructuring initiatives primarily consisted of employee severance and one-time benefits, workforce reorganization charges, contract termination charges, and asset impairment charges. Refer to Note 12.11. “Restructuring and Asset Impairment Charges,” of the notes to consolidated financial statements included in Part II, Item 8 of this Annual Report on Form 10-K for additional information.

Reworded

Other income, netnet, primarily consists of interest income on our cash, cash equivalents, restricted cash and marketable securities, amortization of discount or premium on purchase of cash equivalents and marketable securities, gains or losses upon conversion of foreign currency transactions into U.S. dollars, interest expense, changes in fair value of contingent consideration, non-cash interest expense related to the accretion of debt discount and amortization of deferred financing costs, non-cash charges recognized for loss on partial settlement of convertible notes, and the change in fair value of our debt securities.investment in public and private companies.

Added

Enphase Energy, Inc. | 2025 Form 10-K | 52

Removed

Enphase Energy, Inc. | 2024 Form 10-K | 51

Reworded

Net revenues decreasedincreased by $960.4$142.6 million, or 42%,11%, in the year ended December 31, 2024,2025, as compared to the same period in 2023,2024, driven primarily by a 58%36% increase in IQ Batteries MWh shipped, partially offset by a 2% decrease in microinverter units shipped, partially offset by an increase in ASP for our microinverters as we sold more IQ8 microinverters relative to IQ7 microinverters.sold. During the year ended December 31, 2024,2025, we sold approximately 6.5 million microinverter units, as compared to approximately 15.56.4 million microinverter units in the year ended December 31, 2023. The decrease in net revenues was also partially offset by a 48% increase in IQ Batteries MWh shipped. During the year ended December 31, 2024, weand shipped 521.0706.1 MWh of IQ Batteries, as compared to 351.6approximately 6.5 million microinverter units and 521 MWh of IQ Batteries shipped in the year ended December 31, 2023.2024.

Added

Net revenues in the United States were $1,188.7 million in the year ended December 31, 2025, as compared to $934.7 million in the same period in 2024, an increase of $254.0 million, or 27%, primarily driven by higher demand and $91.2 million of microinverter shipments that are associated with safe harbor transactions with customers.

Added

Net revenues from international markets were $284.3 million in the year ended December 31, 2025, as compared to $395.7 million in the same period in 2024, a decrease of $111.4 million, or 28%, primarily driven by continued softening in demand from customers in Europe, which was impacted by overall slower economic growth in Europe in addition to changes in government policies and lower utility rates.

Removed

The overall decrease in net revenues during the year ended December 31, 2024, as compared to the same period in 2023, was due to a broad-based slowdown that began in 2023 in both the United States and Europe. This resulted in elevated inventory with distributors and installers, and as a result we sold fewer microinverters to distributors and installers during the year ended December 31, 2024 to normalize channel inventory, as compared to the same period in 2023. In the United States, this slowdown was primarily the result of higher interest rates, high channel inventory and the transition from NEM 2.0 to NEM 3.0 in California. Higher interest rates resulted in larger monthly costs and longer pay-back periods for those customers who financed their systems. In Europe, this slowdown was primarily driven by a softer customer demand as utility rates dropped and policy changes were implemented. This resulted in oversupply, financial stresses throughout the industry and the resulting channel inventory correction.

Reworded

Cost of revenues decreasedincreased by $531.2$84.7 million, or 43%,12%, infor the year ended December 31, 2024,2025, as compared to the same period in 2023,2024. This increase was primarily duedriven toby theincreased lower volumeMWh of microinverterIQ unitsBatteries sold,shipped, ashigher welltariffs asand fromindirect themanufacturing benefitcosts. This increase in cost of revenues was partially offset by benefits recognized from tax credits of $157.5 million under the AMPTC for U.S. manufactured microinverters and IQ Batteries MWh shipped to customerscustomers. inThe AMPTC benefits recognized were $238.7 million for the year ended December 31, 2024,2025, as compared to cost of revenues of $53.5$157.5 million infor the same period in 2023. The benefit recognized from the AMPTC was partially offset by $38.3 million and $11.6 million of incremental cost for manufacturing in the United States in the year ended December 31, 2024 and December 31, 2023, respectively, thereby providing a Net IRA benefit of $119.2 million and $41.9 million, respectively.2024.

Reworded

Gross margin increaseddecreased by 1.10.7 percentage points in the year ended December 31, 2024,2025, as compared to the same period in 2023.2024. The increasedecrease was primarily due to product mix and increased tariff costs, partially offset by the recognition of a 9.016.2 percentage point of Net IRAAMPTC benefit in the year ended December 31, 2024,2025, as compared to a 1.811.8 percentage point Net IRAAMPTC benefit in the same period in 2023,2024, due to a higher proportion of sales from U.S. manufactured microinverters and anIQ increaseBattery inMWh ASP for microinverters, partially offset by product mix and relatively higher fixed overhead costs.shipped.

Reworded

Research and development expense decreased by $26.0$12.2 million, or 11%,6%, in the year ended December 31, 2024,2025, as compared to the same period in 2023.2024. The decrease was primarily due to actions implemented in connection with the restructuring initiatives implemented inat 2023the andend of 2024 that lowered personnel-related expenses by $16.2 million due to a reduction in headcount by $7.7 million and lowered equipmentequipment, supplies and professional services costs by $9.8$4.6 million. The amount of research and development expenses may fluctuate from period to period due to the differing levels and stages of development activity for our products.

Reworded

Sales and marketing expense decreased by $25.2$9.0 million, or 11%,4%, in the year ended December 31, 2024,2025, as compared to the same period in 2023.2024. The decrease was primarily due to actions implemented in connection with the restructuring initiatives implemented inat 2023the andend of 2024 that lowered professional services and advertising costs by $14.6 million and personnel-related expenses by $10.6$2.8 million dueas a result of moving certain functions to acost reductionefficient inregions headcount.and leveraging advanced artificial intelligence tools, lowered professional services by $3.2 million and other sales and marketing operating expenses by $3.0 million.

Reworded

General and administrative expense decreasedincreased by $7.0$4.9 million, or 5%,4%, in the year ended December 31, 2024,2025, as compared to the same period in 2023.2024. The decreaseincrease was primarily due to actionsa implemented$3.5 million increase in connection with the restructuring initiatives implemented in 2023 and 2024 that lowered professional services and facilities expense by $4.8 million and loweredhigher personnel-related costs by $2.2 millionexpenses due to aour reductionbonus inprogram headcount.and stock-based compensation and $1.4 million higher legal and other professional services.

Removed

Enphase Energy, Inc. | 2024 Form 10-K | 54

Added

Restructuring and asset impairment charges of $7.1 million in the year ended December 31, 2025, primarily consisted of $5.2 million of employee related expenses, $1.7 million of asset impairment charges and $0.2 million of contract termination charges. Restructuring and asset impairment charges of $13.2 million the year ended December 31, 2024, primarily consisted of $6.4 million of employee severance, one-time benefits and other employee related expenses, $2.0 million of contract termination charges and $4.8 million of asset impairment charges.

Added

Enphase Energy, Inc. | 2025 Form 10-K | 55

Removed

Restructuring and asset impairment charges are the net charges resulting from restructuring initiatives implemented in 2023 and 2024 to increase operational efficiencies, reduce operating costs, and to better align our workforce and cost structure with current market conditions, our business needs, and strategic priorities. Restructuring charges of $13.2 million in the year ended December 31, 2024, primarily consisted of $6.4 million of employee severance, one-time benefits and other employee related expenses, $2.0 million of contract termination charges and $4.8 million of asset impairment charges. Restructuring charges of $15.7 million in the year ended December 31, 2023, primarily consisted of $9.8 million of asset impairment charges, $3.7 million of contract termination charges, $1.4 million of employee severance and one-time benefits, and $0.8 million of other restructuring charges.

Reworded

Interest income of $62.7 million decreased in the year ended December 31, 2025, as compared to $77.3 million increased in the year ended December 31, 2024, as compared to $69.7 million for the year ended December 31, 2023, primarily due to higherlower average cash, cash equivalents and marketable securities, and lower interest rates.

Added

Interest expense of $4.5 million in the year ended December 31, 2025 primarily included $4.5 million for the coupon interest, debt discount amortization with our 0.25% convertible senior notes due 2025 (the “Notes due 2025”), and amortization of debt issuance costs with the Notes due 2025, Notes due 2026 and Notes due 2028 and other interest. Interest expense of $8.9 million in the year ended December 31, 2024, primarily included $8.9 million for the coupon interest, debt discount amortization with the Notes due 2025, and amortization of debt issuance costs with the Notes due 2025, Notes due 2026 and Notes due 2028.

Removed

Interest expense of $8.9 million in the year ended December 31, 2024, primarily included $8.9 million for the coupon interest, debt discount amortization with the Notes due 2025, and amortization of debt issuance costs with the Notes due 2025, Notes due 2026 and Notes due 2028. Interest expense of $8.8 million in the year ended December 31, 2023, primarily related to $8.4 million for the coupon interest, debt discount amortization with the Notes due 2025 and amortization of debt issuance costs with the $65.0 million aggregate principal amount of our 4.0% convertible senior notes due 2023 (the “Notes due 2023”), Notes due 2025, Notes due 2026 and Notes due 2028, and $0.4 million interest incurred with the Notes due 2025 and Notes due 2023.

Reworded

Other expense, net, of $10.9 million in the year ended December 31, 2025 primarily consisted of $9.8 million non-cash expense related to change in the fair value of debt securities, $1.0 million net loss due to foreign currency denominated monetary assets and liabilities and $0.2 million change in the fair value of our tax equity fund investment, partially offset by $0.1 million realized gain from sale of marketable securities. Other expense, net, of $25.5 million in the year ended December 31, 2024,2024 primarily related to $23.0 million impairment of investments in private companies,companies and $5.0 million net loss due to foreign currency denominated monetary assets and liabilitiesliabilities, partially offset by a $2.0 million non-cash net gain related to change in the fair value of debt securities, $0.3 million of miscellaneous other income and $0.2 million realized gain from sale of marketable securities. Other income, net, of $6.5 million in the year ended December 31, 2023, primarily related to a $8.7 million non-cash net gain related to change in the fair value of debt securities, partially offset by a $2.1 million net loss due to foreign currency denominated monetary assets and liabilities and $0.1 million in realized loss on investments.

Removed

Enphase Energy, Inc. | 2024 Form 10-K | 55

Reworded

The income tax provision was $17.5$32.7 million in the year ended December 31, 2024,2025, as compared to an income tax provision of $74.2$17.5 million in the same period in 2023.2024. The decreaseincrease was primarily due to lowerhigher projected tax expense as our operations in U.S. and foreign jurisdictions were lessmore profitable in 2024 as compared to the same period in 2023, partially offset by2025, an increase in tax expense from equity compensation shortfalls in 20242025, and prior year true up adjustments in 2025, as compared to the same period in 2023.2024.

Reworded

As of December 31, 2024,2025, we had $1.7$1.3 billion in net working capital, including cash, cash equivalents, restricted cashequivalents and marketable securities,securities of approximately $1.5 billion, of which approximately $1.6$1.4 billion were held in the United States. Our cash, cash equivalents, restricted cashequivalents and marketable securities primarily consist of U.S. Government agency securities and treasuries, money market mutual funds, corporate notes,notes and bonds, commercial paper and bonds,certificate of deposit, and both interest-bearing and non-interest-bearing deposits, with the remainder held in various foreign subsidiaries. We consider amounts held outside the United States to be accessible and have provided for the estimated withholding tax liability on the repatriation of our foreign earnings.

Removed

Our cash, cash equivalents, restricted cash and marketable securities increased by $22.6 million for the year ended December 31, 2024, as compared to the same period in 2023, primarily due to cash generated from operations of $513.7 million, partially offset by $391.4 million in repurchases of common stock pursuant to the 2023 Repurchase Program and $78.8 million in payments of withholding taxes related to net share settlement of employee equity awards.

Removed

Total carrying amount of debt increased by $8.6 million for the year ended December 31, 2024, as compared to the same period in 2023, primarily due to accretion of debt discount and issuance costs.

Removed

We expect that our principal short-term (over the next 12 months) cash needs related to our operations will be to fund working capital, strategic investments, acquisitions, repurchases of common stock and payments of withholding taxes for net share settlement of employee equity awards, payments on our outstanding debt and purchases of property and equipment. We plan to fund any cash requirements for the next 12 months from our existing cash, cash equivalents and marketable securities on hand, and cash generated from operations. For the long-term period (beyond 12 months), we aim to continue growing cash flows from operations to support our ongoing business operations and strategic investment plans. We regularly evaluate our liquidity position, debt obligations and expected cash requirements. As part of this ongoing assessment, we may pursue additional financing through the issuance of equity or the debt financing, as necessary, to meet our operational and investment needs. We anticipate that access to the debt market will be more limited compared to prior years as interest rates have increased and are expected to remain high. Our ability to obtain debt or any other additional financing that we may choose to, or need to, obtain will depend on, among other things, our development efforts, business plans, operating performance and the condition of the capital markets at the time we seek financing.

Added

Our cash, cash equivalents and marketable securities decreased by $204.7 million from December 31, 2024 to December 31, 2025, primarily due to repurchases of common stock pursuant to our share repurchase program, payoff of the Notes due 2025, investments in private and public companies, issuance of loan receivables and payments of withholding taxes related to net share settlement of equity awards, partially offset by cash generated from operations.

Added

Total carrying amount of debt decreased by $98.0 million from December 31, 2024 to December 31, 2025, primarily due to the payoff of the Notes due 2025, partially offset by accretion of issuance costs.

Added

We expect our principal short-term cash requirements (over the next 12 months) to include working capital, strategic investments, acquisitions, repurchases of common stock and payments of withholding taxes for net share settlement of employee equity awards, payments on our outstanding debt, and purchases of property and equipment. We plan to fund any cash requirements for the next 12 months from our existing cash, cash equivalents and marketable securities on hand, and cash generated from operations.

Showing the first 60 of 90 changed paragraphs. The complete comparison will be part of Pro (coming soon). Meanwhile you can read the full text in the original filing.

What changed in the latest 10-Q

Comparing 10-Q filed 2026-07-28 (period ending 2026-06-30) with 10-Q filed 2026-04-28 (period ending 2026-03-31).

Risk Factors (10-Q Part II, Item 1A)

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0removed paragraphs
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Largest changes (selected automatically by length and topic keywords; quoted verbatim, no commentary)

Reworded topics: investigation, tariff

Paragraph as it now reads, with added and removed wording marked:

On February 20, 2026, the U.S. Supreme Court ruled that tariffs imposed by the U.S. under IEEPA were invalid. The U.S. Supreme Court did not address refunds or remedies but instead remanded the matter to the Court of International Trade to address remedies. In response, the President issued an executive order rescinding the IEEPA tariffs and directing agencies to take measures to cease collection of the tariffs. However, a presidential proclamation was issued imposing a tarifftemporary import surcharge ofunder Section 122. The surcharge was initially set at least 10% underad the balance of payments provision in Section 122 of the Trade Act of 1974valorem on all importsimports, and subsequently increased to 15%, the statutory maximum, with certain exceptions for certainspecified commodities (e.g., electronics, critical minerals) and United States-Mexico-Canada Agreement qualified products. The tariffssurcharge under this statute went intotook effect on February 24, 2026, andfor willa remainmaximum inperiod effect forof 150 daysdays. (On May 7, 2026, the maximumU.S. Court of International Trade held that the Section 122 proclamation was invalid on the basis that it did not satisfy the statutory requirements of the Trade Act of 1974. The government has appealed the ruling, and the Federal Circuit issued a temporary stay pending appeal. With the expiration of the Section 122 tariffs, on July 23, 2026, the Administration announced new tariffs ranging from 10% to 12.5% on 60 trading partners as part of an investigation under Section 301 of the statuteTrade Act of 1974 (“Section 301”). that began on June 2, 2026. The tariffs apply to many of the countries from who we source materials and can include some products material to our business. The evolving legal status, and expiration of the Section 122 tariffs creates additional uncertainty regarding our tariff exposure and any potential recovery of Section 122 duties paid during the quarter. The ultimate impact of these newly enacted and potential future tariffs or other restrictions on international trade will depend on various factors, including the ultimate level of tariffs, the duration such tariffs remain in place, and how other countries respond to U.S. tariffs. Due to broad uncertainty regarding the timing, content and extent of any regulatory changes in the United States or abroad, we cannot predict the impact, if any, that these changes could have to our business, financial condition and results of operations. If the Section 122 tariffs are ultimately invalidated and not replaced, we may benefit from reduced tariff costs on imported components; however, any replacement tariffs imposed under Enphase Energy, Inc. | 2026 Form 10-Q | 47 alternative statutory authorities, such as Section 301 or Section 232 of the Trade Expansion Act of 1962 or Section 338 of the Tariff Act of 1930, could result in tariff rates that are equal to or higher than the current Section 122 surcharge and could remain in effect for significantly longer periods.
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Reworded

Paragraph as it now reads, with added and removed wording marked:

We have moved a significant portion of our manufacturing to the United States, while retaining limited contract manufacturing in China and India. However, certain components necessary for our products are still required to be imported from outside the United States. For example, LFP battery cells used in our storage products are still supplied solely by two vendors in China. Although we are in the process of searching for other vendors outside of China for future supplies, the expertise and industry for the LFP battery cell is primarily in China, and it will require significant effort to identify alternative, qualified suppliers with the right expertise to develop our battery cells. The resulting environment of retaliatory trade or other practices or additional trade restrictions or barriers, if implemented on a broader range of products or components that we source from outside the United States, could harm our ability to obtain necessary Enphase Energy, Inc. | 2026 Form 10-Q | 42 product components or to sell our products at prices customers are willing to pay, which could have a material adverse effect on our business, prospects, results of operations and cash flows.
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Reworded

Changes in the United States trade environment, including the imposition of import tariffs, hashave and could adversely affect the amount or timing of our revenue, results of operations or cash flows.

Reworded

On February 20, 2026, the U.S. Supreme Court ruled that tariffs imposed by the U.S. under IEEPA were invalid. The U.S. Supreme Court did not address refunds or remedies but instead remanded the matter to the Court of International Trade to address remedies. In response, the President issued an executive order rescinding the IEEPA tariffs and directing agencies to take measures to cease collection of the tariffs. However, a presidential proclamation was issued imposing a tarifftemporary import surcharge ofunder Section 122. The surcharge was initially set at least 10% underad the balance of payments provision in Section 122 of the Trade Act of 1974valorem on all importsimports, and subsequently increased to 15%, the statutory maximum, with certain exceptions for certainspecified commodities (e.g., electronics, critical minerals) and United States-Mexico-Canada Agreement qualified products. The tariffssurcharge under this statute went intotook effect on February 24, 2026, andfor willa remainmaximum inperiod effect forof 150 daysdays. (On May 7, 2026, the maximumU.S. Court of International Trade held that the Section 122 proclamation was invalid on the basis that it did not satisfy the statutory requirements of the Trade Act of 1974. The government has appealed the ruling, and the Federal Circuit issued a temporary stay pending appeal. With the expiration of the Section 122 tariffs, on July 23, 2026, the Administration announced new tariffs ranging from 10% to 12.5% on 60 trading partners as part of an investigation under Section 301 of the statuteTrade Act of 1974 (“Section 301”). that began on June 2, 2026. The tariffs apply to many of the countries from who we source materials and can include some products material to our business. The evolving legal status, and expiration of the Section 122 tariffs creates additional uncertainty regarding our tariff exposure and any potential recovery of Section 122 duties paid during the quarter. The ultimate impact of these newly enacted and potential future tariffs or other restrictions on international trade will depend on various factors, including the ultimate level of tariffs, the duration such tariffs remain in place, and how other countries respond to U.S. tariffs. Due to broad uncertainty regarding the timing, content and extent of any regulatory changes in the United States or abroad, we cannot predict the impact, if any, that these changes could have to our business, financial condition and results of operations. If the Section 122 tariffs are ultimately invalidated and not replaced, we may benefit from reduced tariff costs on imported components; however, any replacement tariffs imposed under Enphase Energy, Inc. | 2026 Form 10-Q | 47 alternative statutory authorities, such as Section 301 or Section 232 of the Trade Expansion Act of 1962 or Section 338 of the Tariff Act of 1930, could result in tariff rates that are equal to or higher than the current Section 122 surcharge and could remain in effect for significantly longer periods.

Reworded

We have moved a significant portion of our manufacturing to the United States, while retaining limited contract manufacturing in China and India. However, certain components necessary for our products are still required to be imported from outside the United States. For example, LFP battery cells used in our storage products are still supplied solely by two vendors in China. Although we are in the process of searching for other vendors outside of China for future supplies, the expertise and industry for the LFP battery cell is primarily in China, and it will require significant effort to identify alternative, qualified suppliers with the right expertise to develop our battery cells. The resulting environment of retaliatory trade or other practices or additional trade restrictions or barriers, if implemented on a broader range of products or components that we source from outside the United States, could harm our ability to obtain necessary Enphase Energy, Inc. | 2026 Form 10-Q | 42 product components or to sell our products at prices customers are willing to pay, which could have a material adverse effect on our business, prospects, results of operations and cash flows.

Management's Discussion & Analysis (MD&A) (10-Q Part I, Item 2)

29new paragraphs
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47reworded paragraphs
6,329 → 8,255words in section

Largest changes (selected automatically by length and topic keywords; quoted verbatim, no commentary)

New text topics: investigation, tariff
“Furthermore, following the Supreme Court's decision, the Administration imposed a temporary import surcharge under Section 122 of the Trade Act of 1974 (“Section 122”). The surcharge was initially set at 10% ad valorem on all imports, and subsequently increased to 15%, the statutory maximum, with certain exceptions for specified commodities (e.g., electronics, critical minerals) and United States-Mexico-Canada Agreement qualified products. The surcharge took effect on February 24, 2026, for a maximum period of 150 days. On May 7, 2026, the U.S. …”
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Removed text topics: tariff, liquidity
“Demand for Products. The prolonged softness in demand in the solar industry has continued to adversely impact certain distributors and installers, contributing to reduced liquidity, bankruptcies and business closures across the channel. These disruptions have negatively affected our revenue and profitability and could result in higher allowances for credit losses in the future. In Europe, the overall business environment across the region is still challenging, and is expected to remain constrained in 2026. …”
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New text topics: tariff, liquidity
“Demand for Products. The prolonged softness in demand in the solar industry has continued to adversely impact certain distributors and installers, contributing to reduced liquidity, bankruptcies and business closures across the channel. These disruptions have negatively affected our revenue and profitability and could result in higher allowances for credit losses in the future. In Europe, the overall business environment across the region is still challenging, and is expected to remain constrained in 2026. …”
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New text topics: impairment, restructuring
“Restructuring and asset impairment charges of $4.8 million in the six months ended June 30, 2026, primarily consisted of $4.4 million of employee related expenses, $0.3 million of contract termination charges and $0.1 million of asset impairment. Restructuring charges of $6.5 million in the six months ended June 30, 2025, primarily consisted of $4.4 million of employee related expenses, $1.5 million of asset impairment charges and $0.6 million of contract termination charges.”
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Reworded topics: impairment, restructuring

Paragraph as it now reads, with added and removed wording marked:

Restructuring and asset impairment charges of $3.8$1.0 million in the three months ended MarchJune 31,30, 2026, primarily consisted of $3.5employee related expenses. Restructuring charges of $3.3 million in the three months ended June 30, 2025, primarily consisted of $1.5 million of asset impairment charges, $1.0 million of employee related expenses and $0.3$0.8 million of contract termination charges. Restructuring and asset impairment charges of $3.2 million in the three months ended March 31, 2025, primarily consisted of employee severance, one-time benefits and other employee related expenses.
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New text topics: restructuring, artificial intelligence
“Sales and marketing expense decreased by $6.0 million, or 6%, in the six months ended June 30, 2026, as compared to the same period in 2025. The decrease was primarily due to actions in connection with the restructuring initiatives implemented at the beginning of 2026 that lowered personnel-related expenses by $4.8 million and professional services, advertising and corporate expenses by $1.2 million as a result of moving certain functions to more cost efficient regions and leveraging advanced artificial intelligence tools.”
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Full comparison: every changed paragraph (84)

Green = added, red = removed. Unchanged paragraphs, 4 paragraphs where only numbers/dates changed, and tables are not shown. Read the complete text in the original filing.

Reworded

The following discussion and analysis of our financial condition and results of operations should be read together with our condensed consolidated financial statements and related notes appearing elsewhere in this Quarterly Report on Form 10-Q. This discussion contains forward-looking statements reflecting our current expectations and involves risks and uncertainties. In some cases, you can identify forward-looking statements by terminology such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “believe,” “estimate,” “predict,” “intend,” “potential,” “aim” or “continue” or the negative of these terms or other comparable terminology. Such statements, include but are not limited to statements regarding: our expectations as to future financial performance, including revenue, cost of revenue, expenses, liquidity, cash requirements, and our ability to maintain and grow our profitability; the capabilities, performance and competitive advantage of our technology and products and planned changes; the timing of new product releases, and the anticipated market adoption of our current and future products; expectations regarding the development of our 1.25 megawatt (“MW”) IQ® Solid-State Transformer (“IQ SST”) product for data centers; our expectations regarding, and our ability to meet, demand for our products; our business strategies, including anticipated trends and operating conditions; growth of and development in markets in which we target, and our expansion into new and existing markets; our performance in operations, including our supply chain management and manufacturing operations and timelines; our product quality and customer service; our expectations regarding qualification of our products for domestic content credit under U.S. tax laws and our ability to meet Foreign Entity of Concern (“FEOC”) requirements for our U.S. products; our expectations regarding macroeconomic events and geopolitical developments, including the effects of tariffs, which may impact our business operations, financial performance and the markets in which we, our suppliers, manufacturers and installers operate; our expectations regarding potential growth through engagement in the third-party ownership (“TPO”) market; expectations regarding the increased variability of in the timing of revenue recognition and cash flows related to safe harbor agreements; expectations regarding the commercial microinverter market opportunity in the United States; market risks associated with financial instruments and foreign currency exchange rates; the anticipated benefits and risks relating to acquisitions and investments; and the importance of government incentives for solar products, including the impact of recent changes in the tax laws, rules and regulations. You should be aware that the forward-looking statements contained in this report are based on our current views and assumptions, and are subject to known and unknown risks, uncertainties and other factors that may cause actual events or results to differ materially. For a discussion identifying some of the important factors that could cause actual results to vary materially from those anticipated in the forward-looking statements, see below, those discussed in the section entitled “Risk Factors” herein and those included in our Annual Report on Form 10-K for the year ended December 31, 2025 filed on February 17, 2026 (the “Form 10-K”). Unless the context requires otherwise, references in this report to “Enphase,” “we,” “us” and “our” refer to Enphase Energy, Inc. and its consolidated subsidiaries.

Reworded

We are a global energy technology company. We deliver smart, easy-to-use solutions that manage solar generation, storage and communication on one platform. Our intelligent microinverters work with virtually every solar panel made, and when paired with our smart technology, result in one of the industry’s best-performing clean energy systems. As of MarchJune 31,30, 2026, we have shipped approximately 87.889.4 million microinverters, and more than 5.25.3 million Enphase residential and commercial systems have been deployed in over 165 countries.

Reworded

The Enphase® Energy System brings a high technology, networked approach to solar generation plus energy storage, by leveraging our design expertise across power electronics, semiconductors and cloud-based software technologies. Our integrated approach to energy solutions maximizes a home’s energy potential while providing advanced monitoring and remote maintenance capabilities. The Enphase Energy System uses a single technology platform for seamless management of the whole solution,solution of IQ® Microinverters, IQ® Batteries, IQ® Load Controllers, and IQ® EV Charger, allowing rapid commissioning with the Enphase® Installer App, consumption monitoring with our IQ® Combiner™ device with our Enphase IQ® Gateway™ device, and our Enphase® App, a cloud-based energy management platform. System owners can use the Enphase App to monitor their home’s solar generation, energy storage and consumption from any web-enabled device. Unlike some of our competitors, who utilize a traditional inverter, or offer separate components of solutions, we have built-in system redundancy in both photovoltaic generation and energy storage, eliminating the risk that comes with a single point of failure. Further, the nature of our cloud-based, monitored system allows for remote firmware and software updates, enabling cost-effective remote maintenance and ongoing utility compliance.

Reworded

The OBBBA scales back the Investment Tax Credit (the “ITC”) available under Section 25D of the Internal Revenue Code of 1986, as amended (the “Code”), for residential solar and storage systems purchased through cash or loans. Under the new law, the Section 25D credit expired on December 31, 2025. In addition, the OBBBA imposes new timing requirements for eligibility under Section 48E of the Code, which governs ITCs for leased solar and storage systems. Specifically, solar-only projects that dodid not commence construction within 12 months of the OBBBA’s enactment must be placed in service by December 31, 2027 in order to remain eligible for the credit. Energy storage projects are not subject to this placed-in-service deadline; however, the ITC for storage systems will begin to phase down in 2034 — decreasing to 75% in 2034, 50% in 2035 and phasing out entirely by 2036.

Reworded

Additionally, the OBBBA introduces new compliance requirements under the Foreign Entity of Concern (“FEOC”) provisions for both Section 48E of the Code and the Advanced Manufacturing Production Tax Credit (“AMPTC”) under Section 45X of the Code. These provisions establish an escalating threshold of non-FEOC content that must be met by solar and storage projects beginning construction in 2026 and by manufactured components produced beginning in 2026.

Added

In August 2025, U.S. Treasury Department and the Internal Revenue Service (“IRS”) issued revised “beginning of construction” guidance for clean energy tax credits that only applies to Section 48E projects above 1 MW.

Removed

On July 7, 2025, the President issued an Executive Order directing the Secretary of the Treasury to issue updated guidance within 45 days on the “beginning of construction” requirements applicable to Section 48E projects. In August 2025, Treasury and the IRS issued revised “beginning of construction” guidance for clean energy tax credits that only applies to projects above 1 MW. The Executive Order also requires the Secretary to implement the FEOC restrictions set forth in the OBBBA.

Reworded

In February 2026, the U.S. Treasury Department of the Treasury and the Internal Revenue Service (“IRS”) issued guidance under the OBBBA’s FEOC provisions applicable to Sections 48E and 45X of the Code, including rules and interim safe harbors for determining whether projects or manufactured components receive material assistance from prohibited foreign entities. Treasury and the IRS have indicated that additional proposed regulations and safe harbor tables are expected, including guidance addressing ownership, effective control, debt, licensing arrangements and anti‑circumvention matters, which could make the compliance requirements more restrictive over time.

Removed

In March 2026, we entered into an agreement for the sale of $235.0 million of AMPTC we generated during 2025 at 93% face value, resulting in a discount of approximately $16.5 million. We also incurred approximately $2.5 million in transaction-related fees.

Added

In March 2026, we entered into an agreement for the sale of $235.0 million of AMPTC we generated during 2025 at 93% of face value, resulting in a discount of approximately $16.5 million. We also incurred approximately $2.5 million in transaction-related fees.

Added

In June 2026, we entered into an agreement for the sale of up to $150.0 million of AMPTC we generated during 2026 at 93% of face value. Of such $150.0 million, in June 2026 we sold $37.5 million of AMPTC generated Enphase Energy, Inc. | 2026 Form 10-Q | 33 in the first quarter of 2026 for approximately $34.9 million and incurred approximately $0.5 million in transaction-related fees.

Removed

Enphase Energy, Inc. | 2026 Form 10-Q | 30

Reworded

Trade Tariff Uncertainties. The impact of new or existing tariffs, trade restrictions or retaliatory actions on us, the solar industry and our customers continuecontinues to create uncertainty and impactadversely onaffect our business operations. On February 20, 2026, the United States Supreme Court issued a decision invalidating certain tariffs previously imposed under the International Emergency Economic Powers Act ("IEEPA"). Following this ruling, the U.S. Court of International Trade issued an order directingdirected U.S. Customs and Border Protection (“CBP”) to establish a process for the submission and review of refund claims related to affectedeligible IEEPA tariffs. On April 20, 2026, CBP launched an online portal through which companies may submit refund requests for eligible IEEPA tarifftariffs. refundWe requests.received Submitted claims are subject to reviewrefunds and validationassociated byinterest CBP,of approximately $41.0 million and $11.0 million in the approval,three timing,months ended June 30, 2026 and amountin ofJuly any2026, refundsrespectively, remain subject tofrom CBP determination. Based on our submitted refund requests related to tariffs paid during fiscal 2025 and the first quarter of fiscal 2026, weof maywhich be$45.4 eligiblemillion was recognized as a reduction to receivecost tariffof refunds.revenues However, becauseduring the approvalthree and timingsix months ended June 30, 2026, $1.6 million was recognized as interest income in the three and six months ended June 30, 2026, and $5.0 million was capitalized as a cost of suchinventory refunds remain uncertain and are contingent upon CBP’s review and validation process, no assurance can be given that any refunds will be realized. Furthermore, following the Supreme Court’s decision, the Administration announced the impositionas of newJune global30, tariffs of up to 15% under the provisions of Section 122 of the Trade Act of 1974.2026.

Added

We have submitted additional refund claims for tariffs previously paid and continue to evaluate the recoverability of these amounts. As the approval and timing of such refunds remain uncertain and are contingent upon CBP’s review and validation process, we have not recognized a receivable as of June 30, 2026 and will not recognize such amounts until they are realized or realizable. The ultimate impact of any future approved refunds, if any, could be material.

Added

Furthermore, following the Supreme Court's decision, the Administration imposed a temporary import surcharge under Section 122 of the Trade Act of 1974 (“Section 122”). The surcharge was initially set at 10% ad valorem on all imports, and subsequently increased to 15%, the statutory maximum, with certain exceptions for specified commodities (e.g., electronics, critical minerals) and United States-Mexico-Canada Agreement qualified products. The surcharge took effect on February 24, 2026, for a maximum period of 150 days. On May 7, 2026, the U.S. Court of International Trade held that the Section 122 proclamation was invalid. The government has appealed the ruling, and the Federal Circuit issued a temporary stay pending appeal. On July 23, 2026, following an investigation initiated on June 2, 2026 under Section 301 of the Trade Act of 1974, the Administration announced new tariffs ranging from 10% to 12.5% on imports from 60 trading partners. These tariffs were announced shortly before the expiration of the Section 122 tariffs on July 24, 2026. The tariffs apply to many of the countries from whom we source materials and can include some products material to our business. The evolving legal status, and expiration of the Section 122 tariffs creates additional uncertainty regarding our tariff exposure and any potential recovery of Section 122 duties paid during the quarter. If the Section 122 proclamation is ultimately held invalid and refund mechanisms are established, we may be eligible to recover some or all of the Section 122 duties paid. However, the outcome of the appeal and the availability, timing and amount of any potential refunds remain uncertain and are subject to further judicial and administrative proceedings. No receivable for potential Section 122 tariff refunds has been recognized as of June 30, 2026.

Reworded

We have moved a significant portion of our manufacturing to the United States while continuing to utilize contract manufacturing in China and India. However, certain critical components for our products are still sourced from outside the United States. For example, lithium iron phosphate (“LFP”) battery cells used in our storage products are still supplied solely by two vendors located in China. Although we are in the process of searching for other vendors outside of China for future supplies, the expertise and industry for the LFP battery cell is primarily in China, and it will require significant effort to identify alternative, qualified suppliers with the right expertise to develop our battery cells.

Reworded

Safe Harbor Agreements. DuringWe theexecuted yearagreements ended December 31, 2025, and continuing year‑to‑dateyear-to-date through the date of this filing on April 28, 2026, we expanded our engagement in the TPO market through the execution of additional safe harbor agreementsdeadline with solarTPO customers for products totaling approximately $1,081.1 million, of which $202.4 million is under the ITC Five Percent Safe Harbor method and battery$878.6 financingmillion companiesis thatunder offerthe leasePhysical andWork powerTest purchasebeginning-of-construction agreement structures to homeowners.method. These arrangements are designed to support customers’ qualification for investment tax creditsITC and have become an increasingly important growth channel for U.S. residential solar and battery adoption following the expiration of the residential Investment Tax CreditITC under Section 25D of the Code on December 31, 2025.

Removed

Year‑to‑date, we executed agreements with TPOs for products totaling approximately $843.6 million, including approximately $89.6 million under the Investment Tax Credit Five Percent Safe Harbor method and approximately $754.0 million under the Physical Work Test beginning‑of‑construction method. Product deliveries and revenue recognition associated with these arrangements may occur over multiple periods and are dependent on the timing of product shipment and satisfaction of performance obligations. As a result, the timing and structure of these safe harbor arrangements have contributed to increased variability in the timing of revenue recognition and cash flows between reporting periods.

Removed

Demand for Products. The prolonged softness in demand in the solar industry has continued to adversely impact certain distributors and installers, contributing to reduced liquidity, bankruptcies and business closures across the channel. These disruptions have negatively affected our revenue and profitability and could result in higher allowances for credit losses in the future. In Europe, the overall business environment across the region is still challenging, and is expected to remain constrained in 2026. In the United States, uncertainty related to changes in legislation, including from the OBBBA, which eliminates or reduces existing tax credits for clean energy programs, as well as evolving U.S. trade and tariff policies, may further contribute to market volatility and adversely impact customer demand for our products, pricing and our financial performance.

Added

As of June 30, 2026, contract liabilities included in deferred revenues, current and deferred revenues, non-current on the condensed consolidated balance sheet includes approximately $105.8 million prepayments or billings under the ITC Five Percent Safe Harbor method for products to be delivered in the third and fourth quarters of 2026, and approximately $45.6 million prepayments or billings under the Physical Work Test beginning-of-construction method. Product deliveries and revenue recognition associated with these arrangements may occur over multiple periods through the second quarter of 2031 and are dependent on the timing of product shipment and satisfaction of performance obligations. As a result, the timing and structure of these safe harbor arrangements have contributed to increased variability in the timing of revenue recognition and cash flows between reporting periods.

Added

Demand for Products. The prolonged softness in demand in the solar industry has continued to adversely impact certain distributors and installers, contributing to reduced liquidity, bankruptcies and business closures across the channel. These disruptions have negatively affected our revenue and profitability and could result in higher allowances for credit losses in the future. In Europe, the overall business environment across the region is still challenging, and is expected to remain constrained in 2026. In the United States, uncertainty related to changes in legislation, including from the OBBBA, which eliminated or reduced existing tax credits for clean energy programs, as well as evolving U.S. trade and tariff policies, may further contribute to market volatility and adversely impact customer demand for our products, pricing and our financial performance.

Reworded

IQ Microinverters. We ship IQ8™ Microinverters into 58 countries worldwide. Our IQ8P™ 3PResidential Microinverters and IQ8P-3P™ Commercial Microinverters, with peak output power of 480 W AC, are designed to maximize energy production and can manage a continuous DC current of 14 amperes, supporting higher powered solar modules through increased energy harvesting. TheseThe microinvertersIQ8P-3P areCommercial Microinverter is offered for commercial and industrial applications in North America, Mexico, Colombia, Panama, Costa Rica and 13 Caribbean countries. The IQ8P Residential Microinverter is offered for residential and small commercial applications in North America and for grid-tied applications in South Africa, Mexico, Brazil, India, Thailand, the Philippines, France, Spain, Switzerland, the United Kingdom, Italy, Portugal, Poland, Turkey, Colombia, Panama, Costa Rica, Vietnam, Malaysia, AustraliaAustralia, Fiji, and 13 Caribbean countries.

Reworded

We began shipping our new IQ9N-3P™ Commercial Microinverter in December 2025. This is the first microinverter powered by advanced gallium nitride (“GaN”) technology and designed for three-phase 480Y/277 V (wye) grid configurations, without using external transformers. The IQ9N-3P Commercial Microinverter helps simplify design complexity, lowers installation and balance of system costs, and improves system efficiency for 480 V commercial projects.

Added

In June 2026, we began shipping our new IQ9S-3P™ Commercial Microinverter, our most powerful microinverter, currently available across the United States. Built with GaN technology, the IQ9S-3P Commercial Microinverter supports high-wattage solar panels up to 770 W and connects directly to three-phase 480Y/277 V (wye) grid configurations without requiring external transformers. Together with the IQ9N-3P Commercial Microinverter, the IQ9S-3P Commercial Microinverter gives us a broader commercial portfolio for the U.S. 480 V three-phase market.

Added

In June 2026, we also launched the IQ9N™ Microinverter for residential solar across the United States and key European markets and in July 2026, we launched the IQ9N Microinverter in Australia and New Zealand. Built with GaN technology, IQ9N Microinverters help enhance energy production from the latest high-power solar panels, and support 16 A of continuous DC current and 427 VA of continuous output power. IQ9N Microinverters are backward compatible with IQ7 and IQ8 Series Microinverters and also compatible with IQ Batteries, enabling homeowners and installers to expand existing Enphase systems.

Reworded

In 2025, we released a software update in our Enphase IQ® Gateway™ device that enables homeowners with existing legacy IQ7™ Microinverter-based systems to expand their solar capacity with IQ8 Microinverters. This Enphase Energy, Inc. | 2026 Form 10-Q | 35 software facilitates seamless interoperability between legacy and current system architectures and is available in North America, Europe, Australia, South Africa, the Philippines and other key markets.

Reworded

We ship our IQ8HC™ Microinverters, IQ8X™ Microinverters, IQ8P-3P Commercial Microinverters, IQ9N-3P Commercial Microinverters, IQ9S-3P Commercial Microinverters, IQ9N Residential Microinverters, IQ® Battery 5Ps and IQ® Battery 10Cs supplied from manufacturing facilities in the United States with higher domestic content than previous models, that when paired with other U.S.-made solar equipment couldmay qualify for the domestic content bonus tax credit under the Inflation Reduction Act of 2022.

Reworded

In February 2026, we announced the introduction of Enphase Power Control™ software with our Enphase IQ® Gateway™ device for IQ9™ and IQ8™ Microinverter-based small commercial solar systems. Enphase Power Control™ software simplifies interconnections, reduces permitting complexity, and avoids costly utility upgrades, making it easier and more cost-effective to design and install small commercial microinverter systems. This software solution is designed to help installers reduce costs, simplify interconnection requirements, and enable projects that might otherwise not proceed due to unfavorable project economics.

Reworded

We continue to expand the deployment of the IQ Battery 5P with FlexPhase™, technology, an AC-coupled, modular 5 kWh battery with 3.84 kVA of continuous power per unit, for both single-phase and three-phase applications. TheThis product is currently shipping to Austria, Germany, Switzerland, Luxembourg, Poland, France, Spain, Portugal, the Netherlands, Greece, Romania, Croatia, Finland, Malta, Estonia, India, Belgium, Slovenia, Slovakia, Denmark, Latvia, Lithuania, Sweden, Hungary, BulgariaBulgaria, North Macedonia, and Australia. The standard IQ Battery 5P continues to ship in the Enphase Energy, Inc. | 2026 Form 10-Q | 32 United States, Cayman Islands, Australia, New Zealand, Puerto Rico, Mexico, Canada, the United Kingdom, Italy, France, the Netherlands, Luxembourg, Belgium, Romania and India. These Enphase IQ Batteries in Europe can be installed with both single-phase and three-phase third-party solar energy inverters, enabling homeowners to upgrade their existing home solar systems with a residential battery storage solution that reduces costs while providing increased self-reliance.

Reworded

In December 2025, we launched our PowerMatch™ technology, a battery software upgrade in Europe. PowerMatch intelligently adjusts IQ Battery output to match a home’s real-time power needs,needs by activating only the microinverters needed, delivering more usable energy, higher efficiency, longer battery life and greater long-term savings. The efficiency gains achieved with this technology can improve battery performance by as much as 40%. In May 2026, we expanded PowerMatch technology to North America, making it available to homeowners with qualifying IQ Battery systems in the United States and Canada.

Added

Enphase Energy, Inc. | 2026 Form 10-Q | 36

Reworded

New Products in Development. OnIn April 28, 2026, we announced that we are developing our 1.25 MW IQ SST product for data centers, a distributed solid-state transformer platform designed to convert medium-voltage AC directly to low-voltage DC in a single stage. The IQ SST will be built as a supercluster of 342 power modules, with each module powered by our custom Kestrel ASIC and high-frequency GaN-based power platform. The architecture is designed to deliver native 800 V DC output for next-generation AI racks, fast response on the order of 1 to 3 milliseconds, built-in redundancy, and serviceability through hot-swappable modules. We have completed feasibility, built working power modules, converged on the system design, and have more than 80 engineers working on the program. We expect full system demonstrations latelater this year, customer pilots in 2027 and volume shipments in 2028.year.

Reworded

Net revenues decreased by $73.2$71.3 million, or 21%,20%, in the three months ended MarchJune 31,30, 2026, as compared to the same period in 2025, driven primarily by a 39%40% decrease in IQ Batteries MWh shipped and 8%product decreaseprice decreases, partially offset by a 4% increase in microinverter units sold. During the three months ended MarchJune 31,30, 2026, we sold approximately 1.41.6 million microinverter units and shipped 103.1113.8 MWh of IQ Batteries, as compared to approximately 1.5 million microinverter units and 170.1190.9 MWh of IQ Batteries shipped in the three months ended MarchJune 31,30, 2025.

Reworded

Net revenues in the United States were $233.9$226.9 million in the three months ended MarchJune 31,30, 2026, as compared to $263.2$271.3 million in the same period in 2025, a decrease of $29.3$44.4 million, or 11%,16%, primarily due to the expiration of the federal residential clean energy tax credit under Section 25D of the Internal Revenue Code. Microinverter shipments that are associated with safe harbor transactions with customers were $34.5$84.3 million and $54.3$40.4 million in the three months ended MarchJune 31,30, 2026 and 2025, respectively.

Reworded

Net revenues from international markets were $49.0$65.0 million in the three months ended MarchJune 31,30, 2026, as compared to $92.8$91.8 million in the same period in 2025, a decrease of $43.9$26.8 million, or 47%,29%, primarily driven by lower shipments to customers in Europe driven by continued softening in demand and delayed purchasing activity. In addition, demand in certain European markets was impacted by macroeconomic conditions, regulatory and incentive framework transitions, and lower electricity prices compared to the same period in 2025, which reduced near‑term installation activity and delayed project starts.

Added

Net revenues decreased by $144.5 million, or 20%, in the six months ended June 30, 2026, as compared to the same period in 2025, driven primarily by a 40% decrease in IQ Batteries MWh shipped, 2% decrease in microinverter units sold and product price decreases. During the six months ended June 30, 2026, we sold approximately 3.0 million microinverter units and shipped 216.9 MWh of IQ Batteries, as compared to approximately 3.1 million microinverter units and 361 MWh of IQ Batteries shipped in the six months ended June 30, 2025.

Added

Net revenues in the United States were $460.8 million in the six months ended June 30, 2026, as compared to $534.6 million in the same period in 2025, a decrease of $73.8 million, or 14%, primarily due to the expiration of the federal residential clean energy tax credit under Section 25D of the Internal Revenue Code. Microinverter shipments that are associated with safe harbor transactions with customers were $118.8 million and $94.7 million in the six months ended June 30, 2026 and 2025, respectively.

Added

Net revenues from international markets were $114.0 million in the six months ended June 30, 2026, as compared to $184.7 million in the same period in 2025, a decrease of $70.7 million, or 38%, primarily driven by lower shipments to customers in Europe driven by continued softening in demand and delayed purchasing activity. In addition, demand in certain European markets was impacted by macroeconomic conditions, regulatory and incentive framework transitions, and lower electricity prices compared to the same period in 2025, which reduced near‑term installation activity and delayed project starts.

Reworded

Cost of revenues decreased by $5.3$75.8 million, or 3%,39%, for the three months ended MarchJune 31,30, 2026, as compared to the same period in 2025. This decrease was primarily driven by $45.4 million IEEPA tariff refunds and a decreased40% decrease in MWh of IQ Batteries andMWh microinverter units shipped and lower tariffs.shipped.

Removed

This decrease in cost of revenues was partially offset by $18.9 million loss from the sale of tax credits generated during 2025 and $5.2 million reduction in fair value of AMPTC generated during the three months ended March 31, 2026. The AMPTC generated in the three months ended March 31, 2026 and 2025 was $59.8 million and $53.6 million, respectively, and after taking into account the total fair value adjustments of the AMPTC of $24.1 million and zero, respectively, the net benefit from the AMPTC generated reducing cost of revenues was $35.7 million and $53.6 million, respectively.

Reworded

Gross margin decreasedincreased by 11.713.1 percentage points in the three months ended MarchJune 31,30, 2026, as compared to the same period in 2025. The decreaseincrease was primarily due to 6.715.6 percentage points from the saleIEEPA oftariff taxrefunds, creditspartially generatedoffset during 2025, 1.8 percentage points from reduction in fair value of AMPTC generated during the three months ended March 31, 2026, andby lower shipment volumes of microinverters and IQ Batteries,Batteries whichthat resulted in unfavorable absorption of fixed manufacturing and supply chain costs over a lower revenue base, partially offset by lower tariffs.base.

Added

Cost of revenues decreased by $81.2 million, or 21%, for the six months ended June 30, 2026, as compared to the same period in 2025. This decrease was primarily driven by $45.4 million IEEPA tariff refunds, a 40% decrease in IQ Batteries MWh shipped and a 2% decrease in microinverter units shipped.

Added

This decrease in cost of revenues was partially offset by a $18.9 million loss from the sale of tax credits generated during 2025.

Added

Gross margin increased by 0.8 percentage points in the six months ended June 30, 2026, as compared to the same period in 2025. The increase was primarily due to 7.9 percentage points from the IEEPA tariff refunds, partially offset by 3.3 percentage points from the sale of tax credits generated during 2025, and lower shipment volumes of microinverters and IQ Batteries, which resulted in unfavorable absorption of fixed manufacturing and supply chain costs over a lower revenue base.

Reworded

Research and development expense decreasedincreased by $5.3$0.2 million, or 11%,1%, in the three months ended MarchJune 31,30, 2026, as compared to the same period in 2025. The decreaseincrease was primarily due to a $1.3 million increase in equipment and professional services for IQ SST and other next generation products, partially offset by actions in connection with the restructuring initiatives implemented at the beginning of 2026 that lowered personnel-related expenses as a result of a reduction in headcount by $4.5 million, lowered professional services costs by $0.4 million and other equipment costs by $0.4$1.1 million. The amount of research and development expenses may fluctuate from period to period due to the differing levels and stages of development activity for our products.

Added

Enphase Energy, Inc. | 2026 Form 10-Q | 38

Added

Research and development expense decreased by $5.1 million, or 5%, in the six months ended June 30, 2026, as compared to the same period in 2025. The decrease was primarily due to actions in connection with the restructuring initiatives implemented at the beginning of 2026 that lowered personnel-related expenses as a result of a reduction in headcount by $5.6 million, partially offset by higher professional services costs of $0.4 million. The amount of research and development expenses may fluctuate from period to period due to the differing levels and stages of development activity for our products.

Reworded

Sales and marketing expense decreased by $0.9$5.2 million, or 2%,10%, in the three months ended MarchJune 31,30, 2026, as compared to the same period in 2025. The decrease was primarily due to actions in connection with the restructuring initiatives implemented at the beginning of 2026 that lowered personnel-related expenses by $4.4 million and professional services, advertising and corporate expenses by $0.7 million as a result of moving certain functions to more cost efficient regions and leveraging advanced artificial intelligence tools.

Added

Sales and marketing expense decreased by $6.0 million, or 6%, in the six months ended June 30, 2026, as compared to the same period in 2025. The decrease was primarily due to actions in connection with the restructuring initiatives implemented at the beginning of 2026 that lowered personnel-related expenses by $4.8 million and professional services, advertising and corporate expenses by $1.2 million as a result of moving certain functions to more cost efficient regions and leveraging advanced artificial intelligence tools.

Removed

Enphase Energy, Inc. | 2026 Form 10-Q | 34

Reworded

General and administrative expense decreased by $0.8$2.7 million, or 2%,8%, in the three months ended MarchJune 31,30, 2026, as compared to the same period in 2025. The decrease was primarily due to actions in connection with the restructuring initiatives implemented at the beginning of 2026 that lowered personnel-related expenses by $1.3$1.9 million and lowered equipment and other corporate costs by $0.5 million, partially offset by advisory and legal fees of $1.0$0.8 million.

Added

General and administrative expense decreased by $3.5 million, or 5%, in the six months ended June 30, 2026, as compared to the same period in 2025. The decrease was primarily due to actions in connection with the restructuring initiatives implemented at the beginning of 2026 that lowered personnel-related expenses by $3.2 million and lowered equipment and other corporate costs by $0.3 million.

Added

Enphase Energy, Inc. | 2026 Form 10-Q | 39

Reworded

Restructuring and asset impairment charges of $3.8$1.0 million in the three months ended MarchJune 31,30, 2026, primarily consisted of $3.5employee related expenses. Restructuring charges of $3.3 million in the three months ended June 30, 2025, primarily consisted of $1.5 million of asset impairment charges, $1.0 million of employee related expenses and $0.3$0.8 million of contract termination charges. Restructuring and asset impairment charges of $3.2 million in the three months ended March 31, 2025, primarily consisted of employee severance, one-time benefits and other employee related expenses.

Added

Restructuring and asset impairment charges of $4.8 million in the six months ended June 30, 2026, primarily consisted of $4.4 million of employee related expenses, $0.3 million of contract termination charges and $0.1 million of asset impairment. Restructuring charges of $6.5 million in the six months ended June 30, 2025, primarily consisted of $4.4 million of employee related expenses, $1.5 million of asset impairment charges and $0.6 million of contract termination charges.

Reworded

Interest income of $12.6$12.2 million decreased in the three months ended MarchJune 31,30, 2026, as compared to $17.0$14.9 million in the three months ended MarchJune 31,30, 2025, primarily due to lower average cash, cash equivalents and marketable securities, and lower interest rates.

Reworded

Interest expenseexpense, net, of $0.6$0.3 million in the three months ended MarchJune 31,30, 2026, primarily included amortization of debt issuance costs with our 0.0% convertible senior notes due 2028 (the “Notes due 2026 and the Notes due 2028.2028”). Interest expense of $2.0$0.8 million in the three months ended MarchJune 31,30, 2025, primarily included $2.0$0.8 million for coupon interest, debt discount amortization for the Notes due 2025 and amortization of debt issuance costs forwith theour Notes0.0% convertible senior notes due 2025,2026 (the “Notes due 2026”) and the Notes due 2028.2028, and other interest.

Reworded

Other income,expense, net, of $3.8$1.4 million in the three months ended MarchJune 31,30, 2026, primarily consisted of $1.7$2.6 million gainnon-cash expense related onto change in the salefair value of patents,debt a $1.4 million realized gain from sale of marketable securities,securities and a $0.8$0.4 million net foreign currency gainloss from remeasurement of monetary assets and liabilities, partially offset by $0.1$1.6 million decreasetariff interest refund. Other expense, net, of $8.9 million in the three months ended June 30, 2025, primarily consisted of $9.5 million non-cash expense related to change in the fair value of ourdebt securities and $0.1 million change in tax equityequity, fundpartially investment.offset by $0.7 million net gain due to foreign currency denominated monetary assets and liabilities.

Added

Interest income of $24.8 million decreased in the six months ended June 30, 2026, as compared to $31.9 million in the six months ended June 30, 2025, primarily due to lower average cash, cash equivalents and marketable securities, and lower interest rates.

Added

Interest expense of $1.0 million in the six months ended June 30, 2026, primarily included amortization of debt issuance costs with the Notes due 2026 and the Notes due 2028. Interest expense of $2.9 million in the six months ended June 30, 2025, primarily included the coupon interest, debt discount amortization with the Notes due 2025, and amortization of debt issuance costs with the Notes due 2025, Notes due 2026 and Notes due 2028, and other interest.

Showing the first 60 of 84 changed paragraphs. The complete comparison will be part of Pro (coming soon). Meanwhile you can read the full text in the original filing.

ENPH insider buying and selling (Form 4)

Since 2026-04-11, insiders reported open-market purchases in 2 Form 4 filings (2 insiders, 2 trade dates, 6,000 shares, about $391.4K) and open-market sales in 4 filings (1 insider, 4 trade dates, 4,900 shares, about $211.5K). Net open-market shares: 1,100 (purchases minus sales); net value about $179.9K.Totals add up every open-market (code P and S) line in those filings, using the prices reported in the filings. Awards, option exercises, tax withholding and gifts are listed below but not counted.

Trade dateInsiderTransactionSharesPriceValueOwned afterFiling
2026-08-14Mora Richard
Director
Open-market sale 1,500$40.36 $60.5K10,422 SEC
2026-07-30Mora Richard
Director
Open-market sale 2,000$36.76 $73.5K11,922 SEC
2026-06-12Trivedi Shanker
Director
Open-market purchase 1,000$53.91 $53.9K1,000 SEC
2026-06-11Trivedi Shanker
Director
Grant/award 4,551$54.93 $250.0K4,551 SEC
2026-06-01Mora Richard
Director
Open-market sale 700$64.20 $44.9K13,922 SEC
2026-05-26Kothandaraman Badrinarayanan
Director, President & CEO
Open-market purchase 600$68.39 $41.0K1,645,632 SEC
2026-05-26Kothandaraman Badrinarayanan
Director, President & CEO
Open-market purchase 4,400$67.37 $296.4K1,645,032 SEC
2026-05-19Mora Richard
Director
Open-market sale 700$46.39 $32.5K14,622 SEC
2026-05-13Kortlang Benjamin John
Director
Grant/award 5,952— —14,059 SEC
2026-05-13Haenggi Jamie Elizabeth
Director
Grant/award 5,952— —20,898 SEC
2026-05-13Gomo Steven J
Director
Grant/award 6,428— —14,359 SEC
2026-05-13Rodgers Thurman J
Director
Grant/award 5,952— —8,542 SEC
2026-05-13Mora Richard
Director
Grant/award 5,952— —15,322 SEC
2026-05-13Malchow Joseph Ian
Director
Grant/award 5,952— —69,912 SEC

Well-known investors holding ENPH (13F)

InvestorQuarterSharesReported value% of their 13FChange vs prior quarter
Two Sigma Investments COM2026-06-304,655,692$229.2M0.17%Reduced 15%
Coatue Management (Philippe Laffont) COM2026-06-301,556,941$76.7M0.16%Reduced 6%
Millennium Management (Israel Englander) COM2026-06-301,443,322$71.1M0.05%Added 512%
Oaktree Capital Management (Howard Marks) CONVERTIBLE BOND2026-06-300$57.6M1.08%No change
D. E. Shaw & Co. NOTE 3/02026-06-300$36.2M0.02%No change
Citadel Advisors (Ken Griffin) COM2026-06-30704,923$34.7M0.02%Reduced 70%
D. E. Shaw & Co. COM2026-06-30661,058$32.6M0.02%Reduced 72%
Point72 Asset Management (Steve Cohen) COM2026-06-30434,846$16.4M—Sold out
Renaissance Technologies COM2026-06-30296,400$14.6M0.02%Reduced 67%
Millennium Management (Israel Englander) NOTE 3/02026-06-300$1.3M0.0%No change
AQR Capital Management (Cliff Asness) COM2026-06-3020,857$1.0M0.0%Reduced 32%
Bridgewater Associates COM2026-06-3018,682$919.9K0.0%Reduced 67%
Baillie Gifford COM2026-06-30506$24.9K0.0%Reduced 100%

13F reports are filed up to 45 days after quarter end and show long U.S. equity positions only; options positions are omitted here.

Coming soon: email alerts when ENPH files, watchlists and downloadable comparisons.