ATTO insider buying and SEC filings, explained
Attovia Therapeutics, Inc. · CIK 2058707
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$40.5M
Insiders who bought
5
Sold (not marked 10b5-1)
$4.5M
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Aug 5, 2026 | Sale Amended filing | Colin Walsh (Director) sold 105,807 shares indirectly at about $21.28 ($2.3M). Indirect holdings down 100% to 0 shares. Not marked as a 10b5-1 plan trade. This amends a filing from Aug 13. | SEC filing Filed Aug 28, 2026 |
| Aug 5, 2026 | Other purchase Amended filing | Colin Walsh (Director) bought 105,807 Equity Swap indirectly at about $21.25 ($2.2M), reported as a purchase (code P). New position of 105,807 shares. Not marked as a 10b5-1 plan trade. This amends a filing from Aug 13. | SEC filing Filed Aug 28, 2026 |
| Aug 5–6, 2026 | Purchase (code P) Amended filing | Colin Walsh (Director) bought 585,000 shares indirectly between Aug 5 and Aug 6 at about $17.58 ($10.3M), reported as a purchase (code P). Indirect holdings up 24% to 3,020,632 shares. Not marked as a 10b5-1 plan trade. This amends a filing from Aug 13. | SEC filing Filed Aug 28, 2026 |
| Aug 5, 2026 | Sale Amended filing | Slp Wsls Offshore Investments (Former 10% Owner) sold 105,807 shares indirectly at about $21.28 ($2.3M). Indirect holdings down 100% to 0 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 7 other reporting owners. This amends a filing from Aug 13. | SEC filing Filed Aug 28, 2026 |
| Aug 5, 2026 | Other purchase Amended filing | Slp Wsls Offshore Investments (Former 10% Owner) bought 105,807 Equity Swap indirectly at about $21.25 ($2.2M), reported as a purchase (code P). New position of 105,807 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 7 other reporting owners. This amends a filing from Aug 13. | SEC filing Filed Aug 28, 2026 |
| Aug 5–6, 2026 | Purchase (code P) Amended filing | Slp Wsls Offshore Investments (Former 10% Owner) bought 585,000 shares indirectly between Aug 5 and Aug 6 at about $17.58 ($10.3M), reported as a purchase (code P). Indirect holdings up 24% to 3,020,632 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 7 other reporting owners. This amends a filing from Aug 13. | SEC filing Filed Aug 28, 2026 |
| Aug 6, 2026 | Purchase (code P) | venBio Global Strategic Fund IV, L.P. (10% owner) bought 382,352 shares at $17.00 ($6.5M), reported as a purchase (code P). Holdings up 10% to 4,181,367 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 10, 2026 |
| Aug 6, 2026 | Other purchase | Sanofi (10% owner) bought 300,000 Common Stock indirectly at $17.00 ($5.1M) in a public offering. Indirect holdings up 38% to 1,082,855 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 7, 2026 |
| Aug 6, 2026 | Other purchase | Jeremy Green (10% owner) bought 400,000 Common Stock indirectly at $17.00 ($6.8M) in a public offering. Indirect holdings up 51% to 1,182,854 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 2 other reporting owners. | SEC filing Filed Aug 7, 2026 |
| Aug 6, 2026 | Purchase (code P) | Jeremy Green (10% owner) bought 200,000 shares at $17.00 ($3.4M), reported as a purchase (code P). Holdings up 26% to 982,854 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 2 other reporting owners. | SEC filing Filed Aug 7, 2026 |
| Aug 6, 2026 | Purchase (code P) | FHMLS XI, L.P. (10% owner) bought 588,235 shares at $17.00 ($10.0M), reported as a purchase (code P). Holdings up 11% to 6,154,213 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 2 other reporting owners. | SEC filing Filed Aug 6, 2026 |
16 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
5 insiders bought in 30 days
$40.5M in purchases since Aug 6, 2026 · Purchases traded Aug 6, 2026 to Aug 6, 2026 · Closed
| Insider | Value | Traded | Source |
|---|---|---|---|
| Slp Wsls Offshore Investments (Former 10% Owner) | $10.3M | Aug 6, 2026 | SEC filing |
| Colin Walsh (Director) | $10.3M | Aug 6, 2026 | SEC filing |
| FHMLS XI, L.P. (10% owner) | $10.0M | Aug 6, 2026 | SEC filing |
| Jeremy Green (10% owner) | $3.4M | Aug 6, 2026 | SEC filing |
| venBio Global Strategic Fund IV, L.P. (10% owner) | $6.5M | Aug 6, 2026 | SEC filing |
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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