OmniAb's three largest insider shareholders as of March 23, 2026 are Capital Managing Member V, Llc Avista (TenPercentOwner, 15.86Mn shares), Acquisition Gp Llc Ii Avista (Director, 8.53Mn shares), Sunil Patel (Director, 224.26K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Capital Managing Member V, Llc Avista | 0 | 15,862,815 | 02 Jul, 2024 | |
| Acquisition Gp Llc Ii Avista | 0 | 8,534,450 | 13 Dec, 2022 | |
| Sunil Patel | 224,265 | 0 | 01 Feb, 2023 | |
| Jennifer R. Cochran | 165,274 | 0 | 18 Jun, 2025 | |
| Carolyn R Bertozzi | 93,308 | 0 | 03 Nov, 2025 | |
| Sarah Boyce | 68,381 | 0 | 20 Jun, 2024 | |
| Sarah Boyce | 0 | 36,000 | 14 Nov, 2022 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 01 Nov, 2025 | Carolyn R Bertozzi | Common Stock | A | 17,769 | - | 93,308 | D | M |
| 01 Nov, 2025 | Carolyn R Bertozzi | Restricted Stock Units | D | 17,769 | $0.00 | 20,000 | D | M |
| 17 Jun, 2025 | Jennifer R. Cochran | Common Stock | A | 20,000 | - | 165,274 | D | M |
| 17 Jun, 2025 | Carolyn R Bertozzi | Common Stock | A | 20,000 | - | 75,539 | D | M |
| 17 Jun, 2025 | Steven C. Crouse | Restricted Stock Units | A | 20,000 | $0.00 | 60,000 | D | A |
| 17 Jun, 2025 | Philip J Gotwals | Restricted Stock Units | A | 20,000 | $0.00 | 60,000 | D | A |
| 17 Jun, 2025 | Steven C. Crouse | Stock Option (right to buy) | A | 40,000 | $0.00 | 40,000 | D | A |
| 17 Jun, 2025 | Jennifer R. Cochran | Restricted Stock Units | D | 20,000 | $0.00 | 0 | D | M |
| 17 Jun, 2025 | Philip J Gotwals | Stock Option (right to buy) | A | 40,000 | $0.00 | 40,000 | D | A |
| 17 Jun, 2025 | Carolyn R Bertozzi | Restricted Stock Units | D | 20,000 | $0.00 | 17,769 | D | M |
| 17 Jun, 2025 | Carolyn R Bertozzi | Restricted Stock Units | A | 20,000 | $0.00 | 37,769 | D | A |
| 17 Jun, 2025 | Jennifer R. Cochran | Restricted Stock Units | A | 20,000 | $0.00 | 20,000 | D | A |
| 17 Jun, 2025 | Carolyn R Bertozzi | Stock Option (right to buy) | A | 40,000 | $0.00 | 40,000 | D | A |
| 17 Jun, 2025 | Jennifer R. Cochran | Stock Option (right to buy) | A | 40,000 | $0.00 | 40,000 | D | A |
| 15 May, 2025 | Jennifer R. Cochran | Common Stock | A | 30,000 | $1.52 | 145,274 | D | P |
| 21 Apr, 2025 | Steven C. Crouse | Restricted Stock Units | A | 40,000 | $0.00 | 40,000 | D | A |
| 21 Apr, 2025 | Philip J Gotwals | Restricted Stock Units | A | 40,000 | $0.00 | 40,000 | D | A |
| 21 Apr, 2025 | Philip J Gotwals | Stock Option (right to buy) | A | 80,000 | $0.00 | 80,000 | D | A |
| 21 Apr, 2025 | Steven C. Crouse | Stock Option (right to buy) | A | 80,000 | $0.00 | 80,000 | D | A |
| 01 Nov, 2024 | Carolyn R Bertozzi | Common Stock | A | 17,769 | - | 55,539 | D | M |