Companies › ATTO

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

Attovia Therapeutics, Inc. · Nasdaq · Biological Products, (No Diagnostic Substances) · CIK 2058707 · All filings on SEC.gov

Everything below is quoted or computed from Attovia 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

8Form 4 filings reporting open-market purchases (last 180 days)
4Form 4 filings reporting open-market sales (last 180 days)

Jump to: Annual report (10-K) · Quarterly report (10-Q) · Insider transactions · 13F holders

What changed in the latest 10-K

Comparison not available: Not available: fewer than two 10-K filings on EDGAR to compare..

What changed in the latest 10-Q

Comparison not available: Not available: fewer than two 10-Q filings on EDGAR to compare (only one so far)..

ATTO insider buying and selling (Form 4)

Since 2026-04-11, insiders reported open-market purchases in 8 Form 4 filings (7 insiders, 2 trade dates, 4,210,587 shares, about $72.9M) and open-market sales in 4 filings (3 insiders, 1 trade date, 423,228 shares, about $9.0M). Net open-market shares: 3,787,359 (purchases minus sales); net value about $63.9M.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
2026-08-06Walsh Colin
Director		 Open-market purchase 500,000$17.00 $8.5M3,020,632 SEC
2026-08-06Walsh Colin
Director		 Conversion 1,957,134— —2,042,134 SEC
2026-08-06Walsh Colin
Director		 Conversion 478,498— —2,520,632 SEC
2026-08-06Goldman Sachs Asset Management, L.p.
Former 10% Owner		 Conversion 1,957,134— —2,042,134 SEC
2026-08-06Goldman Sachs Asset Management, L.p.
Former 10% Owner		 Conversion 478,498— —2,520,632 SEC
2026-08-06Goldman Sachs Asset Management, L.p.
Former 10% Owner		 Open-market purchase 500,000$17.00 $8.5M3,020,632 SEC
2026-08-06Walsh Colin
Director		 Conversion 1,957,134— —2,042,134 SEC
2026-08-06Walsh Colin
Director		 Conversion 478,498— —2,520,632 SEC
2026-08-06Walsh Colin
Director		 Open-market purchase 500,000$17.00 $8.5M3,020,632 SEC
2026-08-06Goldman Sachs & Co. Llc
Former 10% Owner		 Open-market purchase 500,000$17.00 $8.5M3,020,632 SEC
2026-08-06Goldman Sachs & Co. Llc
Former 10% Owner		 Conversion 478,498— —2,520,632 SEC
2026-08-06Goldman Sachs & Co. Llc
Former 10% Owner		 Conversion 1,957,134— —2,042,134 SEC
2026-08-06Deep Track Biotechnology Master Fund, Ltd.
10% owner		 Conversion 1,957,138— —1,957,138 SEC
2026-08-06Venbio Global Strategic Fund Iv, L.p.
10% owner		 Open-market purchase 382,352$17.00 $6.5M4,181,367 SEC
2026-08-06Venbio Global Strategic Fund Iv, L.p.
10% owner		 Conversion 821,998— —3,133,868 SEC
2026-08-06Venbio Global Strategic Fund Iv, L.p.
10% owner		 Conversion 2,311,870— —2,311,870 SEC
2026-08-06Venbio Global Strategic Fund Iv, L.p.
10% owner		 Conversion 665,147— —3,799,015 SEC
2026-08-06Green Jeremy
10% owner		 Open-market purchase 200,000$17.00 $3.4M982,854 SEC
2026-08-06Green Jeremy
10% owner		 Conversion 782,854— —782,854 SEC
2026-08-06Green Jeremy
10% owner		 Open-market purchase 400,000$17.00 $6.8M1,182,854 SEC
2026-08-06Sanofi
10% owner		 Conversion 782,855— —782,855 SEC
2026-08-06Sanofi
10% owner		 Open-market purchase 300,000$17.00 $5.1M1,082,855 SEC
2026-08-06Fhmls Xi, L.p.
10% owner		 Open-market purchase 588,235$17.00 $10.0M6,154,213 SEC
2026-08-06Fhmls Xi, L.p.
10% owner		 Conversion 961,322— —5,565,978 SEC
2026-08-06Fhmls Xi, L.p.
10% owner		 Conversion 1,189,940— —4,604,656 SEC
2026-08-06Fhmls Xi, L.p.
10% owner		 Conversion 1,590,175— —3,414,716 SEC
2026-08-06Fhmls Xi, L.p.
10% owner		 Conversion 1,749,192— —1,824,541 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 200$22.10 $4.4K76,875 SEC
2026-08-05Walsh Colin
Director		 Open-market purchase 85,000$21.00 $1.8M85,000 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 988$22.03 $21.8K84,012 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 447$21.87 $9.8K83,565 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 1,332$22.03 $29.3K82,233 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 200$22.05 $4.4K82,033 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 1,556$22.06 $34.3K80,477 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 3,402$22.02 $74.9K77,075 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 480$21.55 $10.3K76,395 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 100$22.11 $2.2K76,295 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 753$21.97 $16.5K75,542 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 672$22.02 $14.8K74,870 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 6,970$22.03 $153.5K67,900 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 400$22.02 $8.8K67,500 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 1,180$21.84 $25.8K66,320 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 1,040$22.05 $22.9K65,280 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 300$20.84 $6.3K64,980 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 443$21.78 $9.6K64,537 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 200$22.05 $4.4K64,337 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 700$22.07 $15.4K63,637 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 1,163$22.19 $25.8K62,474 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 100$21.99 $2.2K62,374 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 6,763$21.61 $146.1K55,611 SEC
2026-08-05Walsh Colin
Director		 Open-market sale 76,418$21.04 $1.6M0 SEC
2026-08-05Goldman Sachs Asset Management, L.p.
Former 10% Owner		 Open-market sale 753$21.97 $16.5K75,542 SEC
2026-08-05Goldman Sachs Asset Management, L.p.
Former 10% Owner		 Open-market sale 672$22.02 $14.8K74,870 SEC
2026-08-05Goldman Sachs Asset Management, L.p.
Former 10% Owner		 Open-market sale 6,970$22.03 $153.5K67,900 SEC
2026-08-05Goldman Sachs Asset Management, L.p.
Former 10% Owner		 Open-market sale 400$22.02 $8.8K67,500 SEC
2026-08-05Goldman Sachs Asset Management, L.p.
Former 10% Owner		 Open-market sale 1,180$21.84 $25.8K66,320 SEC
2026-08-05Goldman Sachs Asset Management, L.p.
Former 10% Owner		 Open-market sale 1,040$22.05 $22.9K65,280 SEC
2026-08-05Goldman Sachs Asset Management, L.p.
Former 10% Owner		 Open-market sale 300$20.84 $6.3K64,980 SEC
2026-08-05Goldman Sachs Asset Management, L.p.
Former 10% Owner		 Open-market sale 443$21.78 $9.6K64,537 SEC
2026-08-05Goldman Sachs Asset Management, L.p.
Former 10% Owner		 Open-market sale 200$22.05 $4.4K64,337 SEC

Showing the 60 most recent of 123 transactions.

Well-known investors holding ATTO (13F)

None of the 59 investors we track reported a position in their latest 13F.

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