ABSI (Absci Corporation Common Stock)
Insider Trading Activity
Every open-market purchase and sale reported by ABSI officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-01 | Zachariah Jonasson | CFO / CBO | F | — | — |
| 2026-08-07 | Ransi Mudalinayake Somaratne | CMO, Head of R&D | A | — | — |
| 2026-08-07 | Ransi Mudalinayake Somaratne | CMO, Head of R&D | A | — | — |
| 2026-07-06 | Mary T Szela | Director | Buy | — | — |
| 2026-06-26 | Sean McClain | Chief Executive Officer | F | — | — |
| 2026-06-15 | Mary T Szela | Director | A | — | — |
| 2026-06-11 | KAREN K MCGINNIS | Director | A | — | — |
| 2026-06-08 | Joseph Sirosh | Director | A | — | — |
| 2026-06-08 | Menelas N Pangalos | Director | A | — | — |
| 2026-06-08 | Daniel A Rabinovitsj | Director | A | — | — |
| 2026-06-08 | Mary T Szela | Director | A | — | — |
| 2026-06-08 | FRANS VAN HOUTEN | Director | A | — | — |
| 2026-06-01 | Zachariah Jonasson | CFO / CBO | F | — | — |
| 2026-05-13 | Menelas N Pangalos | Director | Buy | — | — |
| 2026-03-16 | Andreas Busch | Chief Innovation Officer | Buy | — | — |
| 2026-03-16 | Shelby J. Walker | Chief Legal Officer | MIXED | — | — |
| 2026-03-16 | Zachariah Jonasson | CFO / CBO | MIXED | — | — |
| 2026-03-16 | Todd Bedrick | SVP, CAO | MIXED | — | — |
| 2026-03-16 | Sean McClain | Chief Executive Officer | MIXED | — | — |
| 2026-03-05 | Menelas N Pangalos | Director | A | — | — |
| 2026-03-04 | Sean McClain | Chief Executive Officer | MIXED | — | — |
| 2026-03-04 | Shelby J. Walker | Chief Legal Officer | MIXED | — | — |
| 2026-03-04 | Todd Bedrick | SVP, CAO | MIXED | — | — |
| 2026-03-04 | Andreas Busch | Chief Innovation Officer | F | — | — |
| 2026-03-04 | Zachariah Jonasson | CFO / CBO | MIXED | — | — |
| 2026-03-03 | Sean McClain | Chief Executive Officer | F | — | — |
| 2026-03-03 | Zachariah Jonasson | CFO / CBO | F | — | — |
| 2026-03-03 | Zachariah Jonasson | CFO / CBO | F | — | — |
| 2026-03-03 | Menelas N Pangalos | Director | Buy | — | — |
| 2026-02-25 | Sean McClain | Chief Executive Officer | MIXED | — | — |
| 2026-02-04 | Sean McClain | Chief Executive Officer | Sell | — | — |
| 2026-02-04 | Todd Bedrick | SVP, CAO | F | — | — |
| 2026-02-04 | Andreas Busch | Chief Innovation Officer | F | — | — |
| 2026-02-04 | Zachariah Jonasson | CFO / CBO | Sell | — | — |
| 2026-01-30 | Todd Bedrick | SVP, CAO | A | — | — |
| 2025-12-09 | FRANS VAN HOUTEN | Director | Buy | — | — |
| 2025-12-01 | Zachariah Jonasson | CFO / CBO | F | — | — |
| 2025-10-14 | Andreas Busch | Chief Innovation Officer | F | — | — |
| 2025-10-14 | Zachariah Jonasson | CFO / CBO | F | — | — |
| 2025-10-14 | Todd Bedrick | SVP, CAO | F | — | — |
| 2025-10-14 | Sean McClain | Chief Executive Officer | F | — | — |
| 2025-09-24 | Menelas N Pangalos | Director | Buy | — | — |
| 2025-09-24 | Todd Bedrick | SVP, CAO | Buy | — | — |
| 2025-09-02 | Zachariah Jonasson | CFO / CBO | F | — | — |
| 2025-07-29 | Andreas Busch | Chief Innovation Officer | Buy | — | — |
| 2025-07-09 | Mary T Szela | Director | A | — | — |
| 2025-06-12 | Daniel A Rabinovitsj | Director | A | — | — |
| 2025-06-12 | Menelas N Pangalos | Director | A | — | — |
| 2025-06-12 | Joseph Sirosh | Director | A | — | — |
| 2025-06-12 | FRANS VAN HOUTEN | Director | A | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | 10%+ Owner | 11,279,522 | — |
| — | Chief Executive Officer | 10,925,542 | — |
| — | Director | 8,262,136 | — |
| — | Director | 5,182,833 | — |
| — | Director | 973,260 | — |
| — | Chief Operating Officer | 607,937 | — |
| — | Chief Financial Officer | 605,165 | — |
| — | CFO / CBO | 483,144 | — |
| — | Chief Innovation Officer | 421,446 | — |
| — | Director | 242,408 | — |
| — | SVP, CAO | 222,224 | — |
| — | Chief Legal Officer | 139,775 | — |
| — | Director | 73,420 | — |
| — | Director | 48,420 | — |
| — | Director | 33,420 | — |
| — | Director | 33,420 | — |
| — | Director | 21,300 | — |
| — | Chief Legal Officer | 14,250 | — |
| — | Director | 8,820 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the ABSI quote page; the site-wide leaderboard is on the insider transactions hub.