ATTO
Attovia Therapeutics, Inc.
Attovia Therapeutics, Inc. insider trading
Attovia Therapeutics, Inc. files with the SEC as a Biological Products, (No Diagnostic Substances) company headquartered in San Carlos, CA. Every time one of its executives or directors buys or sells the stock, the filing appears here the moment it reaches the SEC — with grants and option exercises set apart from the trades that cost the insider their own money.
From SEC filings
Recent ATTO insider transactions
6 insiders traded ATTO on the open market between Aug 05, 2026 and Aug 06, 2026 — 8 purchases worth $50.6M, 16 sales worth $440.2K.
- Bought
- $50.6M
- Sold
- $440.2K
- Net
- +$50.1M
- Insiders
- 6
none on a 10b5-1 plan
Walsh Colin
Director
+$8.5M
Aug 06, 2026
500,000 sh · $17.00
Goldman Sachs Group Inc
Former 10% Owner
+$8.5M
Aug 06, 2026
500,000 sh · $17.00
venBio Global Strategic Fund IV, L.P.
10% Owner
+$6.5M
Aug 06, 2026
382,352 sh · $17.00
Redmile Group, LLC
10% Owner
+$3.4M
Aug 06, 2026
200,000 sh · $17.00
Redmile Group, LLC
10% Owner
+$6.8M
Aug 06, 2026
400,000 sh · $17.00
Sanofi
10% Owner
+$5.1M
Aug 06, 2026
300,000 sh · $17.00
Frazier Life Sciences XI, L.P.
10% Owner
+$10M
Aug 06, 2026
588,235 sh · $17.00
Walsh Colin
Director
+$1.8M
Aug 05, 2026
85,000 sh · $21.00
Walsh Colin
Director
−$21.8K
Aug 05, 2026
988 sh · $22.03
Walsh Colin
Director
−$9.8K
Aug 05, 2026
447 sh · $21.87
Walsh Colin
Director
−$29.3K
Aug 05, 2026
1,332 sh · $22.03
Walsh Colin
Director
−$4.4K
Aug 05, 2026
200 sh · $22.05
Walsh Colin
Director
−$34.3K
Aug 05, 2026
1,556 sh · $22.06
Walsh Colin
Director
−$74.9K
Aug 05, 2026
3,402 sh · $22.02
Walsh Colin
Director
−$4.4K
Aug 05, 2026
200 sh · $22.10
Walsh Colin
Director
−$10.3K
Aug 05, 2026
480 sh · $21.55
Walsh Colin
Director
−$2.2K
Aug 05, 2026
100 sh · $22.11
Walsh Colin
Director
−$16.5K
Aug 05, 2026
753 sh · $21.97
Walsh Colin
Director
−$14.8K
Aug 05, 2026
672 sh · $22.02
Walsh Colin
Director
−$153.5K
Aug 05, 2026
6,970 sh · $22.03
Walsh Colin
Director
−$8.8K
Aug 05, 2026
400 sh · $22.02
Walsh Colin
Director
−$25.8K
Aug 05, 2026
1,180 sh · $21.84
Walsh Colin
Director
−$22.9K
Aug 05, 2026
1,040 sh · $22.05
Walsh Colin
Director
−$6.3K
Aug 05, 2026
300 sh · $20.84
| Date | Insider | Shares | Price | Value |
|---|---|---|---|---|
| Aug 06, 2026 | Walsh ColinDirector | 500,000 | $17.00 | +$8.5M |
| Aug 06, 2026 | Goldman Sachs Group IncFormer 10% Owner | 500,000 | $17.00 | +$8.5M |
| Aug 06, 2026 | venBio Global Strategic Fund IV, L.P.10% Owner | 382,352 | $17.00 | +$6.5M |
| Aug 06, 2026 | Redmile Group, LLC10% Owner | 200,000 | $17.00 | +$3.4M |
| Aug 06, 2026 | Redmile Group, LLC10% Owner | 400,000 | $17.00 | +$6.8M |
| Aug 06, 2026 | Sanofi10% Owner | 300,000 | $17.00 | +$5.1M |
| Aug 06, 2026 | Frazier Life Sciences XI, L.P.10% Owner | 588,235 | $17.00 | +$10M |
| Aug 05, 2026 | Walsh ColinDirector | 85,000 | $21.00 | +$1.8M |
| Aug 05, 2026 | Walsh ColinDirector | 988 | $22.03 | −$21.8K |
| Aug 05, 2026 | Walsh ColinDirector | 447 | $21.87 | −$9.8K |
| Aug 05, 2026 | Walsh ColinDirector | 1,332 | $22.03 | −$29.3K |
| Aug 05, 2026 | Walsh ColinDirector | 200 | $22.05 | −$4.4K |
| Aug 05, 2026 | Walsh ColinDirector | 1,556 | $22.06 | −$34.3K |
| Aug 05, 2026 | Walsh ColinDirector | 3,402 | $22.02 | −$74.9K |
| Aug 05, 2026 | Walsh ColinDirector | 200 | $22.10 | −$4.4K |
| Aug 05, 2026 | Walsh ColinDirector | 480 | $21.55 | −$10.3K |
| Aug 05, 2026 | Walsh ColinDirector | 100 | $22.11 | −$2.2K |
| Aug 05, 2026 | Walsh ColinDirector | 753 | $21.97 | −$16.5K |
| Aug 05, 2026 | Walsh ColinDirector | 672 | $22.02 | −$14.8K |
| Aug 05, 2026 | Walsh ColinDirector | 6,970 | $22.03 | −$153.5K |
| Aug 05, 2026 | Walsh ColinDirector | 400 | $22.02 | −$8.8K |
| Aug 05, 2026 | Walsh ColinDirector | 1,180 | $21.84 | −$25.8K |
| Aug 05, 2026 | Walsh ColinDirector | 1,040 | $22.05 | −$22.9K |
| Aug 05, 2026 | Walsh ColinDirector | 300 | $20.84 | −$6.3K |
SEC Form 4 data, Q3 2024 to Q2 2026
ATTO insider trading by quarter
No open-market purchase or sale by a Attovia Therapeutics, Inc. insider appears in SEC's Form 4 data for trades between Jul 01, 2024 and Jun 30, 2026. Grants, option exercises, gifts and tax withholding are not counted as trades.
From SEC's quarterly Form 3, 4 and 5 data sets: code P purchases and code S sales of common stock, by the date the trade happened. Where a fund and the people who control it each report the same block, it is counted once. Trades made in the last days of Q2 2026 but filed after it closed arrive with SEC's next quarterly release.
Attovia Therapeutics, Inc. company record
- SEC industry classification
- Biological Products, (No Diagnostic Substances)
- Headquarters
- San Carlos, CA
- Incorporated in
- DE
- Listed on
- Nasdaq
- SEC Central Index Key
- 0002058707
Sourced from this company's own SEC submissions record. The industry label is SEC's Standard Industrial Classification, which is more specific than the Health Care sector shown above.
After insiders bought ATTO
What the stock actually did in the 90 days following each open-market purchase
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How to read ATTO insider activity
- Open-market purchase (code P)
- An insider spending their own money at market price. This is the only buy code that reliably carries signal — it is a decision, not compensation.
- Grants and option exercises (codes A, M)
- Scheduled compensation. Most "insider buying" headlines are really this, which is why InsiderPulse weights it at a fraction of a real purchase.
- Cluster buy
- Two or more different insiders buying on the open market in the same window. One executive buying can mean anything; three is much harder to explain away.
Other Health Care tickers
Questions
- Are ATTO insiders buying or selling?
- Between Aug 05, 2026 and Aug 06, 2026, 6 Attovia Therapeutics, Inc. insiders made 8 open-market purchases worth $50.6M and 16 sales worth $440.2K, a net purchase of $50.1M.
- How much ATTO stock have insiders bought and sold in the last two years?
- None on the open market: no purchase or sale by a Attovia Therapeutics, Inc. insider appears in SEC's Form 4 data for trades between Jul 01, 2024 and Jun 30, 2026. Grants, option exercises, gifts and tax withholding are not counted as trades.
- What was the largest recent ATTO insider trade?
- Frazier Life Sciences XI, L.P. (10% Owner) bought $10M of ATTO stock on Aug 06, 2026 at about $17.00 a share.
- When did an insider last buy ATTO shares?
- The most recent open-market purchase on file is Walsh Colin (Director) buying $8.5M on Aug 06, 2026. The largest purchase in the period was $10M by Frazier Life Sciences XI, L.P..
- Where does ATTO insider trading data come from?
- From the Form 4 filings Attovia Therapeutics, Inc.'s officers, directors and 10% owners must send the SEC within two business days of a trade. Each row on this page links to its original filing on SEC EDGAR. Share grants and option exercises are kept apart from open-market purchases and sales, because only the latter cost the insider their own money.
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