Absci's three largest insider shareholders as of September 29, 2026 are Venture Partners Ii Lp Phoenix (TenPercentOwner, 11.28Mn shares), Sean Mcclain (Chief Executive Officer, 8.66Mn shares), Group, Llc Redmile (Director, 8.26Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Venture Partners Ii Lp Phoenix | TenPercentOwner | 11,279,522 | 0 | 11,279,522 | 36.9% | 28 May, 2024 |
| 2 | Sean Mcclain | Chief Executive Officer | 8,655,555 | 0 | 8,655,555 | 28.3% | 26 Jun, 2026 |
| 3 | Group, Llc Redmile | Director | 0 | 8,262,136 | 8,262,136 | 27.1% | 14 Jun, 2024 |
| 4 | Gregory T Schiffman | Chief Financial Officer | 605,165 | 0 | 605,165 | 2.0% | 24 Oct, 2022 |
| 5 | Zachariah Jonasson | Cfo / Cbo | 483,144 | 0 | 483,144 | 1.6% | 01 Sep, 2026 |
| 6 | Andreas Busch | Chief Innovation Officer | 421,446 | 0 | 421,446 | 1.4% | 16 Mar, 2026 |
| 7 | Menelas N Pangalos | Director | 242,408 | 0 | 242,408 | 0.8% | 08 Jun, 2026 |
| 8 | Todd Bedrick | Svp, Cao | 216,942 | 0 | 216,942 | 0.7% | 16 Mar, 2026 |
| 9 | Shelby J. Walker | Chief Legal Officer | 139,775 | 0 | 139,775 | 0.5% | 16 Mar, 2026 |
| 10 | Houten Frans Van | Director | 73,420 | 0 | 73,420 | 0.2% | 08 Jun, 2026 |
| 11 | Karen K Mcginnis | Director | 48,420 | 0 | 48,420 | 0.2% | 11 Jun, 2026 |
| 12 | Joseph Sirosh | Director | 33,420 | 0 | 33,420 | 0.1% | 08 Jun, 2026 |
| 13 | Daniel A Rabinovitsj | Director | 33,420 | 0 | 33,420 | 0.1% | 08 Jun, 2026 |
| 14 | Mary T Szela | Director | 21,300 | 0 | 21,300 | 0.1% | 06 Jul, 2026 |
| 15 | Sarah Korman | General Counsel | 14,250 | 0 | 14,250 | 0.0% | 10 Feb, 2022 |
| 16 | Amrit Nagpal | Director | 8,820 | 0 | 8,820 | 0.0% | 14 Jun, 2024 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 31 Aug, 2026 | Zachariah Jonasson | Cfo / Cbo | Disposed F | 8,320 | $8.71 | $72.47K | 483,144 | Direct |
| 30 Jun, 2026 | Mary T Szela | Director | Acquired P | 12,900 | $11.54 | $148.87K | 21,300 | Direct |
| 24 Jun, 2026 | Sean Mcclain | Chief Executive Officer | Disposed F | 59,896 | $10.08 | $603.45K | 8,655,555 | Direct |
| 04 Jun, 2026 | Mary T Szela | Director | Acquired A | 8,400 | $0.00 | $0 | 8,400 | Direct |
| 04 Jun, 2026 | Mary T Szela | Director | Acquired A | 33,200 | $0.00 | $0 | 33,200 | Direct |
| 04 Jun, 2026 | Karen K Mcginnis | Director | Acquired A | 10,100 | $0.00 | $0 | 48,420 | Direct |
| 04 Jun, 2026 | Karen K Mcginnis | Director | Acquired A | 39,800 | $0.00 | $0 | 39,800 | Direct |
| 04 Jun, 2026 | Mary T Szela | Director | Acquired A | 10,100 | $0.00 | $0 | 10,100 | Direct |
| 04 Jun, 2026 | Menelas N Pangalos | Director | Acquired A | 10,100 | $0.00 | $0 | 242,408 | Direct |
| 04 Jun, 2026 | Houten Frans Van | Director | Acquired A | 10,100 | $0.00 | $0 | 73,420 | Direct |
| 04 Jun, 2026 | Daniel A Rabinovitsj | Director | Acquired A | 10,100 | $0.00 | $0 | 33,420 | Direct |
| 04 Jun, 2026 | Joseph Sirosh | Director | Acquired A | 10,100 | $0.00 | $0 | 33,420 | Direct |
| 04 Jun, 2026 | Menelas N Pangalos | Director | Acquired A | 39,800 | $0.00 | $0 | 39,800 | Direct |
| 04 Jun, 2026 | Mary T Szela | Director | Acquired A | 39,800 | $0.00 | $0 | 39,800 | Direct |
| 04 Jun, 2026 | Houten Frans Van | Director | Acquired A | 39,800 | $0.00 | $0 | 39,800 | Direct |
| 04 Jun, 2026 | Daniel A Rabinovitsj | Director | Acquired A | 39,800 | $0.00 | $0 | 39,800 | Direct |
| 04 Jun, 2026 | Joseph Sirosh | Director | Acquired A | 39,800 | $0.00 | $0 | 39,800 | Direct |
| 31 May, 2026 | Zachariah Jonasson | Cfo / Cbo | Disposed F | 8,319 | $6.75 | $56.15K | 491,464 | Direct |
| 13 May, 2026 | Menelas N Pangalos | Director | Acquired P | 37,453 | $5.36 | $200.75K | 232,308 | Direct |
| 02 Mar, 2026 | Sean Mcclain | Chief Executive Officer | Acquired A | 406,200 | $0.00 | $0 | 8,740,767 | Direct |