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

Compass Therapeutics, Inc. · Nasdaq · Biological Products, (No Diagnostic Substances) · CIK 1738021 · All filings on SEC.gov

Everything below is quoted or computed from Compass Therapeutics, 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

5 / 7risk-factor paragraphs added / removed in latest 10-K
0new risk-factor headings
4Form 4 filings reporting open-market purchases (last 180 days)
0Form 4 filings reporting open-market sales (last 180 days)

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What changed in the latest 10-K

Comparing 10-K filed 2026-03-05 (period ending 2025-12-31) with 10-K filed 2025-02-27 (period ending 2024-12-31).

Risk Factors (10-K Item 1A)

5new paragraphs
7removed paragraphs
16reworded paragraphs
31,444 → 30,727words in section

Removed heading “Patent terms may be inadequate to protect our competitive position on our product candidates for an adequate amount of time.”

Removed heading “If we do not obtain patent term extension for any product candidates we may develop, our business may be materially harmed.”

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“Patent terms may be inadequate to protect our competitive position on our product candidates for an adequate amount of time.”
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Removed text
“If we do not obtain patent term extension for any product candidates we may develop, our business may be materially harmed.”
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Removed text topics: fine
“We are an emerging growth company, as defined in the JOBS Act. For as long as we continue to be an emerging growth company, we may take advantage of exemptions from various reporting requirements that are applicable to other public companies that are not emerging growth companies, including not being required to comply with the auditor attestation requirements of Section 404 of the Sarbanes-Oxley Act of 2002, as amended ("the Sarbanes-Oxley Act"), reduced disclosure obligations regarding executive compensation in our registration statements, if applicable, and our periodic reports and proxy …”
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Removed text topics: competition
“Depending upon the timing, duration and specifics of any FDA marketing approval of any product candidates we may develop, one or more U.S. patents that we license or may own in the future may be eligible for limited patent term extension under the Drug Price Competition and Patent Term Restoration Action of 1984 (the "the Hatch-Waxman Amendments"). The Hatch-Waxman Amendments permit a patent extension term of up to five years as compensation for patent term lost during the FDA regulatory review process. …”
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Removed text topics: competition
“Patents have a limited lifespan. In most countries, if all maintenance fees are timely paid, the natural expiration of a patent is generally 20 years from its earliest national filing date. Various extensions may be available, but the life of a patent, and the protection it affords, is limited. Even if patents covering our product candidates are obtained, once the patent life has expired, we may be open to competition from competitive products. …”
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Reworded topics: ai

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Likewise, in the U.S., several states, including Colorado and California, passed laws that will take effect in 2026, to regulate various uses of artificial intelligence, including to make consequential decisions. In addition, various federal regulators have issued guidance and focused enforcement efforts on the use of AI in regulated sectors. Additionally, the FDA, for example, issued draft guidance on the use of AI in regulatory decision-making for drug and biological products that centers on the context of use while establishing a credibility assessment framework for establishing and evaluating AI model outputs intended to support regulatory decision-making. If we develop or use AI systems governed by these laws or regulations, including as informed by regulatory guidance, we will need to meet higher standards of data quality, transparency, monitoring, and human oversight, and we would need to adhere to specific and potentially burdensome and costly ethical, accountability, and administrative requirements, with the potential for significant enforcement or litigation in the event of any perceived non-compliance.
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Green = added, red = removed. Unchanged paragraphs, 1 paragraphs where only numbers/dates changed, and tables are not shown. Read the complete text in the original filing.

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We are a clinical-stage biopharmaceutical company with a limited operating history. Since our founding in 2014, we have incurred significant net losses with an accumulated deficit of $365$431 million as of December 31, 2024.2025. We have funded our operations to date primarily with proceeds from private placements of preferred and common equity, an underwritten public offering and a PIPE offering, as well as sales under our at-the-market offering program pursuant to an Open Market Sale AgreementSM with Jefferies LLC.program. Since commencing operations, we have devoted substantially all of our efforts and financial resources to organizing and staffing our company, identifying business development opportunities, raising capital, securing intellectual property rights related to our product candidates, conducting discovery, and research and development activities, including clinical development, for our product candidates.

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Until we can generate sufficient product revenue to finance our cash requirements, which we may never do, we expect to finance our future cash needs through a combination of public or private equity and debt financings, marketing and distribution arrangements, other collaborations, strategic alliances and licensing arrangements. As of December 31, 2024,2025, we had $126.7$209 million in cash, cash equivalents and marketable securities. Based on our research and development plans, we expect that these cash resources will enable us to fund our operating expenses and capital expenditure requirements into the first quarter of 2027.2028. This estimate is based on assumptions that may prove to be wrong, and we could use our available capital resources sooner than we expect. Changes may occur beyond our control that would cause us to consume our available capital before that time, including changes in, and progress of, our development activities, acquisitions of additional product candidates and changes in regulation.

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The ability of the FDA to review and approve new products can be affected by a variety of factors, including government budget and funding levels, statutory, regulatory, and policy changes, the FDA’s ability to hire and retain key personnel and accept the payment of user fees, and other events that may otherwise affect the FDA’s ability to perform routine functions. Average review times at the agency have fluctuated in recent years as a result. In addition, government funding of other government agencies that fund research and development activities is subject to the political process, which is inherently fluid and unpredictable. Disruptions at the FDA and other agencies may also slow the time necessary for biological products or modifications to approved biological products to be reviewed and/or approved by necessary government agencies, which would adversely affect our business. For example, over the last several years, including for 3543 days beginning on DecemberOctober 22,1, 2018,2025, the U.S. government has shut down several times and certain regulatory agencies, such as the FDA, have had to furlough critical FDA employees and stop critical activities. Currently, federal agencies in the United States are operating under a continuing resolution that is set to expire on MarchSeptember 14,30, 2025.2026. Without appropriation of additional funding to federal agencies, our business operations related to our product development activities for the U.S. market could be impacted.

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Any marketing approvals that we receive for any current or future product candidate may be subject to limitations on the approved indicated uses for which the product may be marketed or the conditions of approval, or contain requirements for potentially costly post-market testing and surveillance to monitor the safety and efficacy of the product candidate. The FDA may also require implementation of a REMS as a condition of approval of any product candidate, which could include requirements for a medication guide, physician communication plans or additional elements to ensure safe use, such as restricted distribution methods, patient registries and other risk minimization tools. In addition, if the FDA or a comparable foreign regulatory authority approves a product candidate, the manufacturing processes, labeling, packaging, distribution, tracking and tracingtracing, adverse event and deviation reporting, storage, advertising, promotion, import and export and record keeping for the product candidate will be subject to extensive and ongoing regulatory requirements. These requirements include submissions of safety and other post-marketing information and reports, registration, as well as continued compliance with cGMP and cGCP, for any clinical trials that we may conduct post-approval. Additionally, we will be required to build and validate interoperable electronic tracing systems to implement with future trading partners for any product candidates we may commercialize. Later discovery of previously unknown problems with any approved candidate, including adverse events of unanticipated severity or frequency, or with our or our third-party manufacturers’ manufacturing processes or facilities, or failure to comply with regulatory requirements, may result in, among other things:

Reworded

Moreover, the FDA strictly regulates the promotional claims that may be made about drug and biological products. In particular, an approved product may not be promoted for uses that are not approved by the FDA as reflected in the product’s approved labeling, or off-label uses. The FDA and other agencies actively enforce the laws and regulations prohibiting the promotion of off-label uses. The FDA has issued guidance on the factors that it will consider in determining whether a firm’s product communication is consistent with the FDA-required labeling for that product, and those factors contain complexity and potential for overlap and misinterpretation. A company that is found to have improperly promoted off-label uses of their products may be subject to significant civil, criminal and administrative penalties. In the current administration, the FDA has increased its enforcement scrutiny over prescription drug advertising, particularly direct-to-consumer product promotion and advertising.

Reworded

We may seek accelerated approval of our current or future product candidates using the FDA’s accelerated approval pathway. A product may be eligible for accelerated approval if it treats a serious or life-threatening condition. In addition, it must demonstrate an effect on a surrogate endpoint that is reasonably likely to predict clinical benefit or on a clinical endpoint that can be measured earlier than irreversible morbidity or mortality (“IMM”), that is reasonably likely to predict an effect on IMM or other clinical benefit, taking into account the severity, rarity, or prevalence of the condition and the availability or lack of alternative treatments. As a condition of approval, the FDA generally requires that a sponsor of a drug or biologic receiving accelerated approval perform adequate and well-controlled post-marketing confirmatory clinical trials. These confirmatory trials must be completed with due diligence. FDA must specify the conditions for any post-approval trials by the date of accelerated approval and the agency has flexibility in setting forth such conditions, which may include enrollment targets, clinical trial protocol and milestones – including the target date of trial completion. The FDA may also require, as appropriate, that certain confirmatory trials be underway prior to accelerated approval or within a specified time from the date of approval. Accelerated approval sponsors must submit progress reports every six months on required post-approval trials. FDORA also gives the FDA increased authority to withdraw approval of a drug or biologic granted accelerated approval on an expedited basis if the sponsor fails to conduct such studies in a timely manner, send the necessary updates to the FDA, or if such post-approval studies fail to verify the drug’s predicted clinical benefit. Under the FDORA, the FDA is empowered to take action, such as issuing fines, against companies that fail to conduct with due diligence any post-marketing confirmatory trial or submit timely reports to the agency on their progress. In addition, the FDA currently requires, unless otherwise informed by the agency, as a condition for accelerated approval pre-approval of promotional materials for products being considered for accelerated approval, unless otherwise informed by the FDA, which could adversely impact the timing of the commercial launch of the product. Even if we do receive accelerated approval, we may not experience a faster development, regulatory review or approval process, and receiving accelerated approval does not assure that the product’s accelerated approval will eventually be converted to a traditional approval.

Reworded

We expect that additional state and federal healthcare reform measures will be adopted in the future, any of which could limit the extent to which state and federal governments cover particular healthcare products and services and could limit the amounts that the federal and state governments will pay for healthcare products and services. For example, recent CMS proposals, including the GLOBE, GUARD, and GENEROUS, could materially impact the Company’s revenue. This could result in reduced demand for any product candidate or complementary or companion diagnostics we develop or could result in additional pricing pressures.

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• the demand for our product candidates, if we obtain regulatory approval;

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• our ability to set a price that we believe is fair for our approved products;

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• our ability to generate revenue and achieve or maintain profitability;

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• the level of taxes that we are required to pay; and

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• the availability of capital.

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Our success depends, in large part, on our and in a few cases, our licensors’ ability to obtain and maintain patent protection in the United States and other countries with respect to our product candidates and platform. We and our licensors have sought, and intend to seek, to protect our proprietary position by filing patent applications in the United States and abroad related to our product candidates and technology that are important to our business. No patent has yet issued from our patent applications.

Reworded

If we do not obtain patent term extension and data exclusivity for our product candidates, our business may be materially harmed.

Reworded

Depending upon the timing, duration and specifics of any FDA marketing approval of our product candidates, one or more of our U.S. patents may be eligible for limited patent term extension under the Drug Price Competition and Patent Term Restoration Act of 1984 ("the Hatch WaxmanHatch-Waxman Act"). The Hatch WaxmanHatch-Waxman Act permits a patent extension term of up to five years as compensation for patent term lost during the FDA regulatory review process. A patent term extension cannot extend the remaining term of a patent beyond a total of 14 years from the date of product approval or more than five years beyond the patent’s natural expiration date, only one patent may be extended per FDA-approved product, and only those claims covering the approved drug, a method for using it or a method for manufacturing it may be extended. Further, certain of our licenses currently or in the future may not provide us with the right to control decisions the licensor or its other licensees on Orange Book listings or patent term extension decisions under the Hatch-Waxman Act. Thus, if one of our important licensed patents is eligible for a patent term extension under the Hatch-Waxman Act, and it covers a product of another licensee in addition to our own product candidate, we may not be able to obtain that extension if the other licensee seeks and obtains that extension first. However, we may not be granted an extension because of, for example, failing to exercise due diligence during the testing phase or regulatory review process, failing to apply within applicable deadlines, failing to apply prior to expiration of relevant patents or otherwise failing to satisfy applicable requirements.

Removed

Patent terms may be inadequate to protect our competitive position on our product candidates for an adequate amount of time.

Removed

Patents have a limited lifespan. In most countries, if all maintenance fees are timely paid, the natural expiration of a patent is generally 20 years from its earliest national filing date. Various extensions may be available, but the life of a patent, and the protection it affords, is limited. Even if patents covering our product candidates are obtained, once the patent life has expired, we may be open to competition from competitive products. Given the amount of time required for the development, testing and regulatory review of new product candidates, it is possible that patents protecting our product candidates might expire before or shortly after we commercialize those candidates. Further, if we encounter delays in our clinical trials, the period of time during which we could market our product candidates under patent protection would be reduced. As a result, our owned and licensed patent portfolio may not provide us with sufficient rights to exclude others from commercializing products similar or identical to ours.

Removed

If we do not obtain patent term extension for any product candidates we may develop, our business may be materially harmed.

Removed

Depending upon the timing, duration and specifics of any FDA marketing approval of any product candidates we may develop, one or more U.S. patents that we license or may own in the future may be eligible for limited patent term extension under the Drug Price Competition and Patent Term Restoration Action of 1984 (the "the Hatch-Waxman Amendments"). The Hatch-Waxman Amendments permit a patent extension term of up to five years as compensation for patent term lost during the FDA regulatory review process. A patent term extension cannot extend the remaining term of a patent beyond a total of 14 years from the date of product approval or more than five years beyond the patent’s natural expiration date, only one patent per product may be extended and only those claims covering the approved drug, a method for using it, or a method for manufacturing it may be extended. However, even if we were to seek a patent term extension, it may not be granted because of, for example, the failure to exercise due diligence during the testing phase or regulatory review process, the failure to apply within applicable deadlines, the failure to apply prior to expiration of relevant patents, or the failure to otherwise satisfy applicable requirements. Moreover, the applicable time period or the scope of patent protection afforded under an extension request could be less than we request. In addition, to the extent we wish to pursue patent term extension based on a patent that we in-license from a third party, we would need the cooperation of that third party. If we are unable to obtain patent term extension or if the term of any requested extension is less than we request, our competitors may obtain approval of competing products following our patent expiration, be able to enter the market sooner, and our revenue could be reduced, and our business, financial condition, prospects and results of operations could be materially harmed.

Reworded

In December 2024, the U.S. Department of Justice issued regulations implementing Executive Order (“EO”) 14117, “Preventing Access to Americans’ Bulk Sensitive Personal Data and United Stated Government-Related Data by Countries of Concern,” which are expected to becomebecame effective in April 2025. These regulations prohibit transactions involving access to bulk sensitive data by countries of concern, such as China (including Hong Kong). In the life sciences sector, the regulations prohibit investment agreements, employment agreements, vendor agreements, and other transactions involving human genomic data and biospecimens, except where necessary for specified exempt activities. Tracking and complying with these regulations may require significant time and expense.

Reworded

Likewise, in the U.S., several states, including Colorado and California, passed laws that will take effect in 2026, to regulate various uses of artificial intelligence, including to make consequential decisions. In addition, various federal regulators have issued guidance and focused enforcement efforts on the use of AI in regulated sectors. Additionally, the FDA, for example, issued draft guidance on the use of AI in regulatory decision-making for drug and biological products that centers on the context of use while establishing a credibility assessment framework for establishing and evaluating AI model outputs intended to support regulatory decision-making. If we develop or use AI systems governed by these laws or regulations, including as informed by regulatory guidance, we will need to meet higher standards of data quality, transparency, monitoring, and human oversight, and we would need to adhere to specific and potentially burdensome and costly ethical, accountability, and administrative requirements, with the potential for significant enforcement or litigation in the event of any perceived non-compliance.

Reworded

Pursuant to Section 404 of the Sarbanes-Oxley Act, our management is required to annually report upon the effectiveness of our internal control over financial reporting. When we lose our status as an “emerging growth company” and reach an accelerated filer threshold, our independent registered public accounting firm will be required to attest to the effectiveness of our internal control over financial reporting. The rules governing the standards that must be met for management to assess our internal control over financial reporting are complex and require significant documentation, testing and possible remediation. As we grow, we expect to hire additional personnel and may utilize external temporary resources to implement, document and modify policies and procedures to maintain effective internal controls. However, it is possible that we may identify significant deficiencies and/or material weaknesses in our internal controls. If we or, if required, our auditors are unable to conclude that our internal control over financial reporting is effective, investors may lose confidence in our financial reporting and the trading price of our common stock may decline.

Reworded

Although we have determined that our internal control over financial reporting was effective as of December 31, 2024,2025, we cannot assure you that there will not be material weaknesses or significant deficiencies in our internal control over financial reporting in the future. Any failure to maintain internal control over financial reporting could severely inhibit our ability to accurately report our financial condition, results of operations or cash flows. If we are unable to conclude that our internal control over financial reporting is effective, or if our independent registered public accounting firm determines we have a material weakness or significant deficiency in our internal control over financial reporting once that firm begin its Section 404 reviews,audits, investors may lose confidence in the accuracy and completeness of our financial reports, the market price of our common stock could decline, and we could be subject to sanctions or investigations by the SEC or other regulatory authorities. Failure to remedy any material weakness in our internal control over financial reporting, or to implement or maintain other effective control systems required of public companies, could also restrict our future access to the capital markets.

Reworded

We are an emerging growth company and a smaller reporting company, and we cannot be certain if the reduced reporting requirements applicable to emerging growth companies and smaller reporting companies will make our common stock less attractive to investors.

Removed

We are an emerging growth company, as defined in the JOBS Act. For as long as we continue to be an emerging growth company, we may take advantage of exemptions from various reporting requirements that are applicable to other public companies that are not emerging growth companies, including not being required to comply with the auditor attestation requirements of Section 404 of the Sarbanes-Oxley Act of 2002, as amended ("the Sarbanes-Oxley Act"), reduced disclosure obligations regarding executive compensation in our registration statements, if applicable, and our periodic reports and proxy statements and exemptions from the requirements of holding nonbinding advisory votes on executive compensation and stockholder approval of any golden parachute payments not previously approved. We will remain an emerging growth company until the earliest of (i) the last day of the fiscal year following the fifth anniversary of the date of the first sale of our common stock pursuant to an effective registration statement, (ii) the last day of the first fiscal year in which we have total annual gross revenues of at least $1.235 billion, (iii) the last day of the first fiscal year in which the market value of our common stock that is held by non-affiliates exceeds $700 million, and (iv) the date on which we have issued more than $1.0 billion in non-convertible debt securities during the prior three-year period. We cannot predict if investors will find our common stock less attractive because we may rely on these exemptions. If some investors find our common stock less attractive as a result, there may be a less active trading market for our common stock and our stock price may be more volatile.

Removed

Even after we no longer qualify as an “emerging growth company,” we may still qualify as a “smaller reporting company,” which would allow us to take advantage of many of the same exemptions from disclosure requirements, including not being required to comply with the independent auditor attestation requirements of Section 404 and reduced disclosure obligations regarding executive compensation in our periodic reports and proxy statements. We cannot predict if investors will find our common stock less attractive because we may rely on these exemptions. If some investors find our common stock less attractive as a result, there may be a less active trading market for our common stock and our share price may be more volatile.

Removed

Under the JOBS Act, emerging growth companies can also delay adopting new or revised accounting standards until such time as those standards apply to private companies. We have elected to take advantage of this extended transition period to enable us to comply with new or revised accounting standards that have different effective dates for public and private companies until the earlier of the date we (i) are no longer an emerging growth company or (ii) affirmatively and irrevocably opt out of the extended transition period provided in the JOBS Act. As a result, our financial statements may not be comparable to companies that comply with new or revised accounting pronouncements as of public company effective dates.

Reworded

We are also a “smaller reporting company,” meaning that the market value of our stock held by non-affiliates is less than $700.0$700 million and our annual revenue is less than $100.0$100 million during the most recently completed fiscal year. We maywill continue to be a “smaller reporting company” until (i) the market value of our stock held by non-affiliates is lessmore than $250.0$700 million or (ii) our annual revenue is lessmore than $100.0$100 million during the most recently completed fiscal year and the market value of our stock held by non-affiliates is lessmore than $700.0$250 million as of the prior June 30. If we areBeing a “smallersmall reporting company” atallows the time we ceaseus to betake anadvantage “emerging growth company,” we may continue to rely onof exemptions from certainvarious disclosurereporting requirements that are availableapplicable to “other public companies that are not smaller reporting companies.”companies, Specifically,including not being required to comply with the auditor attestation requirements of Section 404 of the Sarbanes-Oxley Act of 2002, as aamended “smaller("the reportingSarbanes-Oxley company”Act"), we may choose to present only the two most recent fiscal years of audited financial statements in our Annual Report on Form 10-K and,and similar to emerging growth companies, “smaller reporting companies”we have reduced disclosure obligations regarding executive compensation. We cannot predict if investors will find our common stock less attractive because we may rely on these exemptions. If some investors find our common stock less attractive as a result, there may be a less active trading market for our common stock and our stock price may be more volatile.

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

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14reworded paragraphs
4,247 → 4,204words in section

New heading “Underwritten Offering”

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“Underwritten Offering”
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“In April 2012, the Jumpstart Our Business Startups Act of 2012 (the "JOBS Act") was enacted. Under Section 107(b) of the JOBS Act, an “emerging growth company” can delay the adoption of new or revised accounting standards until such time as those standards would apply to private companies. We have made the election to delay the adoption of such accounting standards as provided in the JOBS Act. There are other exemptions and reduced reporting requirements provided by the JOBS Act that we are currently evaluating. …”
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“On August 12, 2025, we entered into an underwriting agreement (the “Underwriting Agreement”) with Jefferies LLC, Piper Sandler & Co., and Guggenheim Securities, LLC, as representatives (the “Representatives”) of the underwriters named therein (the “Underwriters”), pursuant to which the Company agreed to issue and sell an aggregate of (a) 33,290,000 shares (the “Firm Shares”) of its common stock, par value $0.0001 per share (the “Common Stock”), at a price to the public of $3.00 per share, and (b) pre-funded warrants to purchase up to 6,710,000 shares of the Company’s Common Stock (the …”
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“On December 30, 2025, we filed an S-3 registration statement which was declared effective by the SEC on January 7, 2026. …”
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Since our inception, we have not generated any revenue from any product sales or any other sources, and we have incurred significant operating losses. We have not yet commercialized any products and we do not expect to generate revenue from sales of products for several years, if at all. We have funded our operations primarily with proceeds from private placements of preferred and commonmultiple equity and an underwritten public offering in the fourth quarter of 2021. Through December 31, 2024, we received gross proceeds of $430.5 million from the sale of equity securities, including $136.5 million in gross proceeds from our Follow-On Public Offering, $60.5 million in gross proceeds from the sale of our common stock in the Private Placement, $80.3 million in gross proceeds from a PIPE financing and $21.2 million in gross proceeds from sales through our ATM facility.financings. As of December 31, 2024,2025, we had cash, cash equivalents and marketable securities of $126.7$209 million.
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“During the year ended December 31, 2025, cash provided by financing activities was $129.6 million. This was primarily from the issuance of stock through an underwritten stock offering for net proceeds of $129.4 million. During the year ended December 31, 2024, cash provided by financing activities was $17.3 million. This was primarily from the issuance of stock pursuant to our ATM program for net proceeds of $17.6 million.”
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Full comparison: every changed paragraph (26)

Green = added, red = removed. Unchanged paragraphs, 7 paragraphs where only numbers/dates changed, and tables are not shown. Read the complete text in the original filing.

Reworded

We are a clinical-stage, oncology-focused biopharmaceutical company developing proprietary antibody-based therapeutics to treat multiple human diseases. Our scientific focus is on the relationship between angiogenesis, the immune system, and tumor growth. Our pipeline of novel product candidates is designed to target multiple critical biological pathways required for an effective anti-tumor response. These include modulation of the microvasculature via angiogenesis-targeted agents, induction of a potent immune response via activators on effector cells in the tumor microenvironment, and alleviation of immunosuppressive mechanisms used by tumors to evade immune surveillance. We plan to advance our product candidates through clinical development and commercialization as both standalone therapies and in combination with proprietary pipeline antibodies based on supportive clinical and nonclinical data.

Reworded

As a result, we will need substantial additional funding to support our continuing operations and pursue our growth strategy. Until such time as we can generate significant revenue from product sales, if ever, we expect to finance our operations through equity and debt financings, or other capital sources, which may include collaborations with other companies or other strategic transactions. As of December 31, 2024,2025, we had $126.7$209 million in cash, cash equivalents and marketable securities. Based on our research and development plans, we expect that these cash resources will enable us to fund our operating expenses and capital expenditures requirements into the first quarter of 2027.2028. We may be unable to raise additional funds or enter into such other agreements or arrangements when needed on favorable terms, or at all. If we fail to raise capital or enter into such agreements as and when needed, we may have to significantly delay, reduce or eliminate the development and commercialization of one or more of our product candidates or delay our pursuit of potential in-licenses or acquisitions.

Added

In 2025, there were no issuances of common stock through our Open Market Sale AgreementSM with Jefferies LLC (“Jefferies ATM Agreement”). In December 2025, we entered into a Sales Agreement for our ATM offering with Leerink Partners LLC and Cantor Fitzgerald & Co and the prior Jefferies ATM Agreement was terminated.

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In the first quarter of 2024, we sold, through our Open Market Sale AgreementSM with Jefferies LLC,ATM Agreement, 9,790,577 shares of common stock at an average price of $1.85 for total proceeds of $18.1 million and net proceeds of $17.6 million.

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Underwritten Offering

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On August 12, 2025, we entered into an underwriting agreement (the “Underwriting Agreement”) with Jefferies LLC, Piper Sandler & Co., and Guggenheim Securities, LLC, as representatives (the “Representatives”) of the underwriters named therein (the “Underwriters”), pursuant to which the Company agreed to issue and sell an aggregate of (a) 33,290,000 shares (the “Firm Shares”) of its common stock, par value $0.0001 per share (the “Common Stock”), at a price to the public of $3.00 per share, and (b) pre-funded warrants to purchase up to 6,710,000 shares of the Company’s Common Stock (the “Pre-Funded Warrants”), at a price to the public of $2.9999 per warrant with an exercise price of $0.0001 per share (the “Offering”). Pursuant to the Underwriting Agreement, the Company granted the underwriters a 30-day option, which the underwriters exercised, to purchase up to an additional 6,000,000 shares of its Common Stock (the “Optional Shares”, and together with the Firm Shares, the “Shares”) at the public offering price, less underwriting discounts and commissions. The Company received aggregate net proceeds of $129.3 million, after deducting underwriting discounts and commissions of $8.3 million and other offering costs of $0.4 million.

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The 2025 Pre-Funded Warrants were determined to be equity classified. Accordingly, proceeds from the offering were allocated to common stock, the 2025 Pre-Funded Warrants on a relative fair value basis and were recorded in stockholders’ equity. As of December 31, 2025, all of the 2025 Pre-Funded Warrants remain outstanding.

Removed

In the second quarter of 2023, we sold, through our Open Market Sale AgreementSM with Jefferies LLC, 951,873 shares of common stock at an average price of $3.28 for total proceeds of $3.1 million and net proceeds of $3.0 million.

Reworded

Research and development expenses consist primarily of costs incurred in connection with the development of our clinical product candidates, tovecimig, CTX-471CTX-471, CTX-8371 and CTX-8371,CTX-10726, as well as unrelated preclinical and discovery program expenses. We expense research and development costs as incurred. These expenses include:

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In 20242025 and 2023,2024, the only component of other income was interest income from cash deposits and marketable securities.

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We are organized as a Delaware corporation and treated as a c-corporation for federal and state income taxes. Our wholly-owned subsidiaries are included in the consolidated corporate tax return. Prior to the Merger in 2020, we were established as a Delaware limited liability company, and the business that was acquired in the Merger was treated as a partnership for income tax reporting purposes; therefore, federal and state income taxes were the responsibility of its individual members. As such, no federal or state income taxes related to the limited liability company were recorded in our consolidated financial statements. All such taxes have been recorded in our financial statements. As of December 31, 20242025 we recorded a deferred tax asset of $59.5$79.2 million primarily related to a net operating loss carryforward, section 174 capitalization, research and development tax credit carryforward, and capitalized licensing fees. The asset has a corresponding fullfully deferred tax valuation allowance. Pursuant to Section 382 of the Internal Revenue Code of 1986, as amended, if a corporation undergoes an ownership change (generally defined as a greater than 50% change (by value) in the ownership of its equity over a three-year period), the corporation’s ability to use its pre-change net operating loss carryforwards and certain other pre-change tax attributes to offset its post-change income may be limited. We may have experienced such ownership changes in the past, and we may experience ownership changes in the future as a result of shifts in our stock ownership, some of which are outside our control. See Note 1314 to our consolidated financial statements appearing in this Form 10-K.

Reworded

There was no licensing revenue for the year ended December 31, 2025. Licensing revenue was $850 thousand for the year ended December 31, 2024. There was no licensing revenue for the year ended December 31, 2023. The licensing revenue consisted of a $1 million milestone payment from Elpiscience for completing a Phase 1 trial in China. This license revenue is reported net of a 15% sublicense royalty due to ABL Bio (see Note 1011 of the consolidated financial statements appearing in this Form 10-K for further information on this sublicense agreement).

Reworded

Research and development expenses increased by $4.2$13.6 million from $38.1 million in 2023 to $42.3 million in 2024.2024 to $56.0 million in 2025. This increase was primarily attributable to aan $2.4increase of $14.2 million increase in clinical andof manufacturing costsexpenses related to our lead program, tovecimig,tovecimig and $1.3 million from our second program, CTX-471, as described below.CTX-10726.

Reworded

General and administrative expenses increased by $2.9$1.7 million from $12.2 million in 2023 to $15.1 million in 2024.2024 to $16.9 million in 2025. The increase was primarily attributable to highercommercialization personnel expense, including stock compensationexpenses of $2.3approximately million,$0.7 drivenmillion byand the$0.5 CEOmillion transitionof duringadvisory the year.fees. We anticipate that our general and administrative expenses will increase in the future as we expand our commercial operations and to support our growing research and development efforts, as well as potential commercial operations.efforts.

Reworded

Since our inception, we have not generated any revenue from any product sales or any other sources, and we have incurred significant operating losses. We have not yet commercialized any products and we do not expect to generate revenue from sales of products for several years, if at all. We have funded our operations primarily with proceeds from private placements of preferred and commonmultiple equity and an underwritten public offering in the fourth quarter of 2021. Through December 31, 2024, we received gross proceeds of $430.5 million from the sale of equity securities, including $136.5 million in gross proceeds from our Follow-On Public Offering, $60.5 million in gross proceeds from the sale of our common stock in the Private Placement, $80.3 million in gross proceeds from a PIPE financing and $21.2 million in gross proceeds from sales through our ATM facility.financings. As of December 31, 2024,2025, we had cash, cash equivalents and marketable securities of $126.7$209 million.

Reworded

On August 1, 2022, we entered into an Open Market Sale AgreementSM with Jefferies LLC, pursuant to which we may offer and sell, from time to time at our sole discretion, shares of our common stock.stock, which has since been terminated.

Reworded

On August 30, 2024, we filed an S-3 registration statement which was declared effective by the SEC on September 6, 2024. This registration statement includes (i) a base prospectus that covers the offering, issuance and sale by us of up to $300,000,000$300 million of our common stock, preferred stock, debt securities, warrants and/or units and (ii) a sale agreement prospectus supplement that covers the offer and sale, from time to time at our sole discretion, shares of our common stock having an aggregate offering price of up to $55 million pursuant to our Open Market Sale AgreementSM with Jefferies LLC.

Added

On December 30, 2025, we filed an S-3 registration statement which was declared effective by the SEC on January 7, 2026. This registration statement includes (i) a base prospectus that covers the offering, issuance and sale by us of up to $400 million of our common stock, preferred stock, debt securities, warrants and/or units and (ii) a sale agreement prospectus supplement that covers the offer and sale, from time to time at our sole discretion, shares of our common stock having an aggregate offering price of up to $100 million pursuant to our Sales Agreement with Leerink Partners LLC and Cantor Fitzgerald & Co. The prior Open Market Sale AgreementSM with Jefferies LLC was terminated as part of this filing.

Added

During the year ended December 31, 2025, we used $49.1 million of cash in operating activities, resulting from our net loss of $66.5 million and the change in operating assets and liabilities of $9.2 million and non-cash charges of $8.2 million. Our non-cash charges primarily consisted of stock-based compensation expense of $8.4 million.

Removed

During the year ended December 31, 2023, we used $40.6 million of cash in operating activities, resulting from our net loss of $42.5 million and the change in operating assets and liabilities of $2.9 million, offset by non-cash charges of $4.8 million. Our non-cash charges primarily consisted of stock-based compensation expense of $6.1 million.

Reworded

During the year ended December 31, 2025, cash used in investing activities was $93.3 million, which was primarily attributed to the net purchases of marketable securities of $93.3 million. During the year ended December 31, 2024, cash provided by investing activities was $46.8 million, which was primarily attributed to the net proceeds from the sale of marketable securities of $46.8 million. During the year ended December 31, 2023 cash provided by investing activities was $27.0 million, which was primarily attributed to the net proceeds from the sale of marketable securities of $27.0 million.

Added

During the year ended December 31, 2025, cash provided by financing activities was $129.6 million. This was primarily from the issuance of stock through an underwritten stock offering for net proceeds of $129.4 million. During the year ended December 31, 2024, cash provided by financing activities was $17.3 million. This was primarily from the issuance of stock pursuant to our ATM program for net proceeds of $17.6 million.

Removed

During the year ended December 31, 2024, cash provided by financing activities was $17.3 million. This was primarily from the issuance of stock pursuant to our ATM program for net proceeds of $17.6 million. During the year ended December 31, 2023, cash provided by financing activities was $2.9 million. This was primarily from the issuance of stock pursuant to our ATM program for net proceeds of $3.0 million.

Reworded

We believe that our existing cash, cash equivalents and marketable securities as of December 31, 20242025 will enable us to fund our operating expenses and capital expenditure requirements into the first quarter of 2027.2028. We have based this estimate on assumptions that may prove to be wrong, and we could exhaust our available capital resources sooner than we expect. We expect that we will require additional funding to complete the clinical development of our product candidates, commercialize our product candidates, if we receive regulatory approval, and pursue in-licenses or acquisitions of other product candidates. If we receive regulatory approval for our any of our product candidates, we expect to incur significant commercialization expenses related to product manufacturing, sales, marketing and distribution, depending on where we choose to commercialize our product candidates.

Removed

JOBS Act

Removed

In April 2012, the Jumpstart Our Business Startups Act of 2012 (the "JOBS Act") was enacted. Under Section 107(b) of the JOBS Act, an “emerging growth company” can delay the adoption of new or revised accounting standards until such time as those standards would apply to private companies. We have made the election to delay the adoption of such accounting standards as provided in the JOBS Act. There are other exemptions and reduced reporting requirements provided by the JOBS Act that we are currently evaluating. For example, as an “emerging growth company”, we are exempt from Sections 14A(a) and (b) of the Exchange Act that would otherwise require us to (i) submit certain executive compensation matters to stockholder advisory votes, such as “say-on-pay”, “say-on-frequency”, and “golden parachutes”; and (ii) disclose certain executive compensation related items such as the correlation between executive compensation and performance and comparisons of our Chief Executive Officer’s compensation to our median employee compensation. We also intend to rely on an exemption from the rule requiring us to provide an auditor’s attestation report on our internal controls over financial reporting pursuant to Section 404(b) of the Sarbanes-Oxley Act. We will continue to remain an “emerging growth company” until the earliest of the following: (i) the last day of the fiscal year following the fifth anniversary of the date of the first sale of our common stock pursuant to an effective registration statement; (ii) the last day of the fiscal year in which our total annual gross revenue is equal to or more than $1.235 billion; (iii) the date on which we have issued more than $1 billion in nonconvertible debt during the previous three years; or (iv) the date on which we are deemed to be a large accelerated filer under the rules of the SEC.

What changed in the latest 10-Q

Comparing 10-Q filed 2026-08-06 (period ending 2026-06-30) with 10-Q filed 2026-05-05 (period ending 2026-03-31).

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

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1reworded paragraphs
82 → 1,035words in section

New heading “Our second amended and restated bylaws designate certain courts as the sole and exclusive forum for certain types of actions and proceedings that may be initiated by our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers, or employees.”

New heading “Our business could be adversely affected by economic downturns, inflation, increases in interest rates, natural disasters, public health crises, political crises, government shutdowns, geopolitical events, or other macroeconomic conditions, which could have a material and adverse effect on our results of operations and financial condition.”

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New text topics: tariff, liquidity, china, russia
“The global economy, including credit and financial markets, has experienced extreme volatility and disruptions, including, among other things, diminished liquidity and credit availability, declines in consumer confidence, declines in economic growth, supply chain shortages, increases in inflation rates, higher interest rates, international tariffs and uncertainty about economic stability. The Federal Reserve had raised interest rates multiple times in response to concerns about inflation until recently, and it may raise them again. …”
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New text topics: litigation, lawsuit, breach
“Our second amended and restated bylaws (the “bylaws”) provide that, unless we consent in writing to an alternative forum, the Court of Chancery of the State of Delaware will be the sole and exclusive forum for any state law claims for (i) any derivative action or proceeding brought on our behalf, (ii) any action asserting a claim of breach of fiduciary duty owed by any of our directors, officers and employees to us or our stockholders, (iii) any action asserting a claim arising pursuant to any provision of the DGCL, our amended and restated certificate of incorporation or our bylaws (in each …”
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New text topics: inflation, interest rate
“Our business could be adversely affected by economic downturns, inflation, increases in interest rates, natural disasters, public health crises, political crises, government shutdowns, geopolitical events, or other macroeconomic conditions, which could have a material and adverse effect on our results of operations and financial condition.”
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New text
“Our second amended and restated bylaws designate certain courts as the sole and exclusive forum for certain types of actions and proceedings that may be initiated by our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers, or employees.”
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New text
“We may in the future experience disruptions as a result of such macroeconomic conditions, including delays or difficulties in initiating or expanding clinical trials and manufacturing sufficient quantities of materials. Any one or a combination of these events could have a material and adverse effect on our results of operations and financial condition.”
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Reworded

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

In addition to the other information set forth in this report, you should carefully consider the risk factors discussed in Part I, Item 1A “Risk Factors” in our Annual Report on Form 10-K for the fiscal year ended December 31, 2025, which could materially affect our business, financial condition, or results of operations. There has been no material change in the risk factors described in the Company’sour Annual Report on Form 10-K for the year ended December 31, 2025.2025, with the exception of the following risk factors:
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Reworded

In addition to the other information set forth in this report, you should carefully consider the risk factors discussed in Part I, Item 1A “Risk Factors” in our Annual Report on Form 10-K for the fiscal year ended December 31, 2025, which could materially affect our business, financial condition, or results of operations. There has been no material change in the risk factors described in the Company’sour Annual Report on Form 10-K for the year ended December 31, 2025.2025, with the exception of the following risk factors:

Added

Our second amended and restated bylaws designate certain courts as the sole and exclusive forum for certain types of actions and proceedings that may be initiated by our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers, or employees.

Added

Our second amended and restated bylaws (the “bylaws”) provide that, unless we consent in writing to an alternative forum, the Court of Chancery of the State of Delaware will be the sole and exclusive forum for any state law claims for (i) any derivative action or proceeding brought on our behalf, (ii) any action asserting a claim of breach of fiduciary duty owed by any of our directors, officers and employees to us or our stockholders, (iii) any action asserting a claim arising pursuant to any provision of the DGCL, our amended and restated certificate of incorporation or our bylaws (in each case, as they may be amended form time to time), (iv) any action to interpret, apply, enforce or determine the validity of our amended and restated certificate of incorporation or our bylaws (in each case, as they may be amended form time to time) or (v) any action asserting a claim against us that is governed by the internal affairs doctrine; provided, however, that this exclusive forum provision will not apply to any causes of action arising under the Securities Act of 1933, as amended (the “Securities Act") or the Exchange Act. Our bylaws further provide that, unless we consent in writing to an alternative forum, the United States District Courts for the District of Delaware and District of Massachusetts will be the sole and exclusive forums for resolving any complaint asserting a cause of action arising under the Securities Act. In addition, our bylaws provides that any person or entity purchasing or otherwise acquiring any interest in shares of our capital stock is deemed to have notice of and consented to the foregoing provisions. We recognize that the forum selection clause in our bylaws may impose additional litigation costs on stockholders in pursuing any such claims, particularly if the stockholders do not reside in or near the State of Delaware or the Commonwealth of Massachusetts, as applicable. Additionally, the forum selection clause in our bylaws may limit our stockholders’ ability to bring a claim in a forum that they find favorable for disputes with us or our directors, officers or employees, which may discourage such lawsuits against us and our directors, officers and employees even though an action, if successful, might benefit our stockholders. The Court of Chancery of the State of Delaware or the United States District Courts for the District of Delaware or the District of Massachusetts may also reach different judgments or results than would other courts, including courts where a stockholder considering an action may be located or would otherwise choose to bring the action, and such judgments may be more or less favorable to us than our stockholders.

Added

Our business could be adversely affected by economic downturns, inflation, increases in interest rates, natural disasters, public health crises, political crises, government shutdowns, geopolitical events, or other macroeconomic conditions, which could have a material and adverse effect on our results of operations and financial condition.

Added

The global economy, including credit and financial markets, has experienced extreme volatility and disruptions, including, among other things, diminished liquidity and credit availability, declines in consumer confidence, declines in economic growth, supply chain shortages, increases in inflation rates, higher interest rates, international tariffs and uncertainty about economic stability. The Federal Reserve had raised interest rates multiple times in response to concerns about inflation until recently, and it may raise them again. Higher interest rates, coupled with reduced government spending and volatility in financial markets, may increase economic uncertainty and affect consumer spending. In addition, in July 2026, the U.S. imposed tariffs ranging from approximately 10% - 12.5% on virtually all imports to the U.S. The U.S. has also imposed significantly higher tariffs applicable to certain imports in select industries, including certain pharmaceuticals. These actions have resulted in other countries imposing additional tariffs on imports from the U.S., and may result in more retaliatory tariffs. Current or future tariffs will result in increased research and development expenses, including with respect to increased costs associated with active pharmaceutical ingredients, raw materials, laboratory equipment and research materials and components. There can be no assurance that deterioration in credit and financial markets and confidence in economic conditions will not occur. Similarly, global geopolitical disruptions, including civil or political unrest or military conflicts such as between Russia and Ukraine, between the U.S. and Iran in the Middle East and U.S.’s rising tensions with China have created extreme volatility in the global capital markets and commodity prices and may have further global economic consequences, including disruptions of the global supply chain. Any such volatility and disruptions may adversely affect our business or the third parties on whom we rely. If the equity and credit markets deteriorate, including as a result of political unrest or war, it may make any necessary debt or equity financing more costly, more dilutive, or more difficult to obtain in a timely manner or on favorable terms, if at all. Increased inflation rates can adversely affect us by increasing our costs, including labor and employee benefit costs.

Added

We may in the future experience disruptions as a result of such macroeconomic conditions, including delays or difficulties in initiating or expanding clinical trials and manufacturing sufficient quantities of materials. Any one or a combination of these events could have a material and adverse effect on our results of operations and financial condition.

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

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2,845 → 3,484words in section

New heading “Tovecimig Investigator Sponsored Trials”

New heading “CTX-8371 (PD-1 x PD-L1 bispecific) Phase 1 Expansion Cohorts Enrolling”

New heading “CTX-10726 (PD-1 x VEGF-A bispecific) Phase 1 Dose-Escalation Study Enrolling”

New heading “Comparison of the Six Months Ended June 30, 2026 and 2025”

New heading “Research and Development Expenses”

New heading “General and Administrative Expenses”

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“CTX-10726 (PD-1 x VEGF-A bispecific) Phase 1 Dose-Escalation Study Enrolling”
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“CTX-8371 (PD-1 x PD-L1 bispecific) Phase 1 Expansion Cohorts Enrolling”
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“Comparison of the Six Months Ended June 30, 2026 and 2025”
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“Tovecimig Investigator Sponsored Trials”
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“General and Administrative Expenses”
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“Research and Development Expenses”
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Reworded

The following discussion of the financial condition and results of operations of Compass Therapeutics, Inc. should be read in conjunction with the financial statements and the notes to those statements included in this Quarterly Report on Form 10-Q for the three and six months ended MarchJune 31,30, 2026. Some of the information contained in this discussion and analysis, including information with respect to our plans and strategy for our business, includes forward-looking statements that involve risk, uncertainties and assumptions. You should read the “Risk Factors” section of this Quarterly Report on Form 10-Q and the “Risk Factors” section included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2025, for a discussion of important factors that could cause actual results to differ materially from the results described in or implied by the forward-looking statements contained in the following discussion and analysis.

Reworded

Our pipeline comprises four clinical product candidates. Our lead product candidate, tovecimig (formerly known as CTX-009), is a bispecific antibody targeting Delta-like ligand 4 (“DLL4”), a ligand of Notch-1, and vascular endothelial growth factor A (“VEGF-A”). Simultaneous blockade of the VEGF-A and the Notch pathways is known to turn productive angiogenesis into non-productive angiogenesis, which leads to tumor shrinkage and apoptosis. CTX-471,CTX-471 is an agonistic antibody targeting a member of the tumor necrosis factor receptor superfamily member 9 (TNFRSF9), also known as CD-137, a co-stimulatory receptor which is mostly expressed on activated, but not on resting, T-cells and NK cells. CTX-8371,CTX-8371 is a bispecific antibody targeting the programmed cell death protein-1 (“PD-1”), an inhibitory immune checkpoint receptor and its ligand PD-L1, two validated immune-oncology targets. CTX-10726 is a bispecific antibody targeting PD-1 and VEFG-A,VEGF-A, also two validated immune-oncology targets. For a more detailed description, see our Annual Report on Form 10-K for the fiscal year ended December 31, 2025.

Reworded

Tovecimig resultsResults in COMPANION-002 Phase 2/3 Study in the Second Line Setting for Patients with BTC

Added

In April 2026, we announced survival and safety data from our Phase 2/3 randomized trial of tovecimig in combination with paclitaxel in patients with biliary tract cancer (“BTC”) treated in the second-line setting. We expect feedback from the FDA in the third quarter regarding the COMPANION-002 Phase 2/3 data, prior to a potential BLA filing later this year.

Added

The study met the primary endpoint of overall response rate (“ORR”) with 18.0% in the tovecimig combination arm compared to 5.3% in the paclitaxel control arm, including one complete response in the tovecimig arm. In the final data analysis, the ORR improved to 18.0% (20/111 patients) in the tovecimig combination arm from a previously reported 17.1%. One patient initially characterized as “Non-CR / Non-PD” due to target lesion characteristics was ultimately adjudicated by blinded independent central review to be a partial response. With this change, the p-value also improved to 0.0228 compared to paclitaxel alone (vs previously reported p=0.031). The tovecimig combination arm also demonstrated a highly statistically significant improvement versus paclitaxel alone in the secondary endpoint of median progression-free survival (PFS) of 4.7 months versus 2.6 months, providing a 56% reduction in the risk of progression (hazard ratio=0.44, p<0.0001). Secondary endpoint analyses of overall survival (OS) were confounded by both high crossover (54%) and notably prolonged survival in crossover patients randomized to the control arm then treated with tovecimig and, therefore, did not meet statistical significance.

Added

In July 2026, we announced data from this study has been selected for a proffered paper oral presentation at the 2026 ESMO Congress.

Added

Tovecimig Investigator Sponsored Trials

Added

The previously disclosed investigator sponsored trial (“IST”) of tovecimig in combination with the current first-line, standard-of-care regimen of gemcitabine, cisplatin, and durvalumab in patients with BTC (NCT06548412) is ongoing with expansion to additional sites expected.

Added

Two additional ISTs have been initiated, including a study of tovecimig plus FOLFIRI in patients with colorectal cancer in the second line setting (NCT07662031) and a study of tovecimig plus CTX-471 in patients with glioblastoma in the second line setting (NCT07392957). We are evaluating additional studies for tovecimig in other indications, including both ISTs and Company-sponsored studies.

Added

CTX-8371 (PD-1 x PD-L1 bispecific) Phase 1 Expansion Cohorts Enrolling

Added

Phase 1 cohort expansions are actively enrolling patients with triple-negative breast cancer (“TNBC”), Hodgkin lymphoma (“HL”) and non-small cell lung cancer (“NSCLC”) at two dose levels: 3.0 mg/kg and 10.0 mg/kg. The evaluation of an RP2D for further development. Additional data from the cohort expansions are expected in the fourth quarter of 2026.

Added

At the ASCO Annual Meeting in May 2026, we presented data from the dose-escalation portion of this Phase 1, open-label, first-in-human study evaluating CTX-8371 in patients with metastatic or locally advanced malignancies.

Added

CTX-10726 (PD-1 x VEGF-A bispecific) Phase 1 Dose-Escalation Study Enrolling

Added

The first patients have been dosed in the Phase 1 dose-escalation study of CTX-10726 with locally advanced, unresectable or metastatic renal cell carcinoma, gastroesophageal cancer, hepatocellular carcinoma, or endometrial cancer, in whom standard of care therapies have failed. Clinical data from the dose-escalation cohort is expected in the fourth quarter of 2026.

Removed

In April 2025, we announced that the study met its primary endpoint of overall response rate (“ORR”). Tovecimig in combination with paclitaxel achieved a 17.1% ORR, including one complete response, compared to a 5.3% ORR for paclitaxel alone, in patients with biliary tract cancer (“BTC”) treated in the second-line setting. The difference in ORR between the two treatment arms, the primary endpoint of the study, was statistically significant (p=0.031), and all responses were assessed by blinded independent central radiology review.

Removed

In April 2026, we announced the following additional information related to the study:

Removed

We intend to meet with the U.S. Food and Drug Administration (“FDA”) to discuss these data in advance of a planned BLA submission.

Removed

Tovecimig received Orphan Drug Designation from the FDA in April 2026 for the treatment of patients with BTC. Orphan Drug Designation provides certain development incentives, including tax credits for qualified clinical testing, exemption from FDA user fees, and eligibility for seven years of market exclusivity upon approval.

Reworded

We have funded our operations primarily with proceeds from the sale of our equity securities. Through MarchJune 31,30, 2026, we have received $568 million in gross proceeds from the sale of equity securities.

Reworded

We have incurred significant operating losses since inception and have not generated any revenue from the sale of products and we do not expect to generate any revenue from the sale of products in the near future, if at all. Our ability to generate product revenue sufficient to achieve profitability will depend heavily on the successful development and eventual commercialization of our therapies and any future product candidates. Our net losses were $18.3$25.2 million and $16.6$19.9 million for the three months ended MarchJune 31,30, 2026 and 2025, respectively. Our net losses were $43.5 million and $36.5 million for the six months ended June 30, 2026 and 2025, respectively. We had an accumulated deficit of $449.5$475 million on MarchJune 31,30, 2026. We expect to continue to incur significant expenses for at least the next several years as we advance through clinical development, develop additional product candidates and seek regulatory approval of any product candidates that complete clinical development. In addition, if we obtain marketing approval for any product candidates, we expect to incur significant commercialization expenses related to product manufacturing, marketing, sales and distribution. We may also incur expenses in connection with the in-licensing or acquisition of additional product candidates.

Reworded

As a result, we will need substantial additional funding to support our continuing operations and pursue our growth strategy. Until such time as we can generate significant revenue from product sales, if ever, we expect to finance our operations through equity and debt financings, or other capital sources, which may include collaborations with other companies or other strategic transactions. As of MarchJune 31,30, 2026, we had $195$180 million in cash, cash equivalents and marketable securities. We expect that such cash resources will enable us to fund our operating expenses and capital expenditure requirements into 2028. We may be unable to raise additional funds or enter into such other agreements or arrangements when needed on favorable terms, or at all. If we fail to raise capital or enter into such agreements as and when needed, we may have to significantly delay, reduce or eliminate the development and commercialization of one or more of our product candidates or delay our pursuit of potential in-licenses or acquisitions.

Reworded

In the first quartersix months of 2025,2026, there were no issuances of common stock through our Open Market Sale AgreementSM with Jefferies LLC (“Jefferies ATM Agreement”). In December 2025, we entered into a Sales Agreement for our ATM offering with Leerink Partners LLC and Cantor Fitzgerald & CoCo. (the “2026 ATM Agreement”), and the prior Jefferies ATM Agreement was terminated. In the first quartersix months of 2026, we did not sell any shares of common stock under the 2026 ATM Agreement.

Added

Our clinical development costs may vary significantly based on factors such as:

Reworded

Comparison of the Three Months Ended MarchJune 31,30, 2026 and 2025

Reworded

The following table summarizes our results of operations for the three months ended MarchJune 31,30, 2026 and 2025 (in thousands):

Reworded

Research and development expenses increased by $0.3$3.2 million, or 3%,19%, for the three months ended MarchJune 31,30, 2026 compared to the three months ended MarchJune 31,30, 2025. The increase was primarily driven by $2.6 million related to non-personnel project expenses for tovecimig.

Reworded

General and administrative expenses increased by $2.0$2.8 millionmillion, or 41%59%, for the three months ended MarchJune 31,30, 2026 as compared to the same period in 2025. The increase was primarily due to aan $2.0increase of $1.4 million of pre-commercialization expenses and an increase inof $0.8 million of stock-based compensation expense.

Added

Comparison of the Six Months Ended June 30, 2026 and 2025

Added

The following table summarizes our results of operations for the six months ended June 30, 2026 and 2025 (in thousands):

Added

Research and Development Expenses

Added

Research and development expenses increased by $3.5 million, or 12%, for the six months ended June 30, 2026, as compared to the six months ended June 30, 2025. This was primarily driven by an increase of $2.5 million of stock-based compensation expense and $1.3 million of manufacturing expense.

Added

We track outsourced development, personnel costs and other research and development costs of specific programs. Research and development expenses are summarized by program in the table below (in thousands):

Added

General and Administrative Expenses

Added

General and administrative expenses increased by $4.8 million, or 50%, for the six months ended June 30, 2026 as compared to the same period in 2025. This was primarily driven by an increase of $1.8 million of pre-commercialization expenses, an increase of $1.3 million of personnel expenses related to commercialization and an increase of $2.1 million of stock-based compensation expense.

Reworded

Since our inception, we have devoted substantially all of our efforts to organizing and staffing our Company, business planning, raising capital, research and development activities, building our intellectual property portfolio and providing general and administrative support for these operations. We have funded our operations primarily with proceeds from the sale of our equity securities. Through MarchJune 31,30, 2026, we have received $568 million in gross proceeds from the sale of equity securities. As of MarchJune 31,30, 2026, we had cash, cash equivalents and marketable securities of $195$180 million.

Removed

During the three months ended March 31, 2026, we used $17.3 million of cash in operating activities, resulting from our net loss of $18.3 million and the change in operating assets and liabilities of $4.2 million partially offset by non-cash charges of $5.2 million (primarily from share-based compensation expense of $5.1 million).

Reworded

During the threesix months ended MarchJune 31,30, 2025,2026, we used $13.2$32.0 million of cash in operating activities, resulting from our net loss of $16.6$43.5 millionmillion, partially offset by the change in operating assets and liabilities of $0.5$1.2 million and non-cash charges of $2.9$10.2 million (primarily from share-based compensation expense of $2.5$9.9 million).

Added

During the six months ended June 30, 2025, we used $25.0 million of cash in operating activities, resulting from our net loss of $36.5, million partially offset by the change in operating assets and liabilities of $5.5 million and non-cash charges of $5.9 million (primarily from share-based compensation expense of $5.3 million).

Reworded

During the threesix months ended MarchJune 31,30, 2026, $38.4$33.5 million of cash was provided by investing activities related to the net sales of marketable securities. During the threesix months ended MarchJune 31,30, 2025, $11.6$5.2 million of cash was usedprovided inby investing activities related to the net sale of marketable securities.

Reworded

During the threesix months ended MarchJune 31,30, 2026, $3.9 million of cash was provided by financing activities due to the exercise of stock options, partially offset by $0.5 million of taxes paid by the Companyus for settlement of RSU shares. During the threesix months ended MarchJune 31,30, 2025, $0.8 million of cash was used in financing activities due to taxes paid by the Companyus for settlement of RSU shares.

Reworded

During the threesix months ended DecemberJune 31,30, 2026, there were no material changes to our critical accounting estimates described under "Management’s Discussion and Analysis of Financial Condition and Results of Operations" in the Annual Report.

Reworded

A description of recently issued accounting pronouncements that may potentially impact our financial position and results of operations inis disclosed in Note 2, “Summary of Significant Accounting Policies” to our condensed financial statements included elsewhere in this Quarterly Report on Form 10-Q.

Reworded

We are a “smaller reporting company” as defined in the Securities Exchange Act of 1934, as amended,amended or (the “Exchange Act.Act”). We may continue to be a smaller reporting company if either (i) the market value of our shares held by non-affiliates is less than $250 million as of the last business day of the most recently completed second fiscal quarter or (ii) our annual revenue was less than $100 million during the most recently completed fiscal year and the market value of our shares held by non-affiliates was less than $700 million as of the last business day of the most recently completed second fiscal quarter. As a smaller reporting company, we may choose to present only the two most recent fiscal years of audited financial statements in our Annual Report on Form 10-K and have reduced disclosure obligations regarding executive compensation, and if we are a smaller reporting company with less than $100 million in annual revenue, we would not be required to obtain an attestation report on internal control over financial reporting issued by our independent registered public accounting firm.

CMPX insider buying and selling (Form 4)

Since 2026-04-11, insiders reported open-market purchases in 4 Form 4 filings (2 insiders, 3 trade dates, 62,500 shares, about $96.8K) and open-market sales in 0 filings. Net open-market shares: 62,500 (purchases minus sales); net value about $96.8K.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
2026-10-01Lerner Neil
Chief Accounting Officer
Open-market purchase 20,000$0.92 $18.4K420,000 SEC
2026-09-24Lerner Neil
Chief Accounting Officer
Open-market purchase 2,500$1.14 $2.9K400,000 SEC
2026-04-29Lerner Neil
Chief Accounting Officer
Open-market purchase 15,000$1.89 $28.4K397,500 SEC
2026-04-29Anderman Jonathan
General Counsel
Open-market purchase 25,000$1.89 $47.2K196,000 SEC
2026-04-29Anderman Jonathan
General Counsel
Grant/award 25,000$1.89 $47.2K196,000 SEC
2026-04-29Lerner Neil
Chief Accounting Officer
Grant/award 15,000$1.89 $28.4K397,500 SEC

Well-known investors holding CMPX (13F)

InvestorQuarterSharesReported value% of their 13FChange vs prior quarter
Millennium Management (Israel Englander) COM2026-06-304,713,247$10.3M0.01%Added 457%
Citadel Advisors (Ken Griffin) COM2026-06-303,570,674$7.8M0.0%Added 395%
AQR Capital Management (Cliff Asness) COM2026-06-303,509,137$7.7M0.0%Added 1651%
Point72 Asset Management (Steve Cohen) COM2026-06-30686,577$1.5M0.0%New position
Two Sigma Investments COM2026-06-30320,312$701.5K0.0%Added 868%
D. E. Shaw & Co. COM2026-06-30204,487$447.8K0.0%Added 210%

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

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