SEER's three largest insider shareholders as of March 23, 2026 are Growth Fund Limited Partnership Amoon (TenPercentOwner, 4.92Mn shares), Omid Farokhzad (Ceo And Chair, 3.35Mn shares), Omid Farokhzad (Ceo And Chair, 2.12Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Growth Fund Limited Partnership Amoon | 4,112,235 | 810,961 | 11 Jun, 2021 | |
| Omid Farokhzad | Ceo And Chair | 3,349,064 | 0 | 19 Feb, 2026 |
| Omid Farokhzad | Ceo And Chair | 0 | 2,117,138 | 11 Dec, 2025 |
| David R. Horn | President Cfo | 501,262 | 0 | 19 Feb, 2026 |
| Omead Ostadan | President Coo | 378,238 | 0 | 01 Jun, 2022 |
| Elona Kogan | Chief Legal Officer | 273,142 | 0 | 23 Feb, 2024 |
| Meeta Gulyani | 107,543 | 0 | 09 Jul, 2025 | |
| Scott D Thomas | Chief Commercial Officer | 95,532 | 0 | 19 May, 2023 |
| Rachel E. Haurwitz | 87,615 | 0 | 14 Jun, 2024 | |
| Isaac Ro | 41,000 | 0 | 03 Sep, 2025 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 18 Feb, 2026 | Omid Farokhzad | Class A Common Stock | D | 24,385 | $1.99 | 3,349,064 | D | S |
| 18 Feb, 2026 | David R. Horn | Class A Common Stock | D | 7,743 | $1.99 | 501,262 | D | S |
| 03 Feb, 2026 | Omid Farokhzad | Class A Common Stock | A | 697,162 | $0.00 | 3,373,449 | D | A |
| 03 Feb, 2026 | David R. Horn | Class A Common Stock | A | 79,000 | $0.00 | 509,005 | D | A |
| 03 Feb, 2026 | David R. Horn | Employee Stock Option (right to buy) | A | 119,000 | $0.00 | 119,000 | D | A |
| 03 Feb, 2026 | Omid Farokhzad | Employee Stock Option (right to buy) | A | 512,000 | $0.00 | 512,000 | D | A |
| 09 Dec, 2025 | Omid Farokhzad | Class A Common Stock | A | 1,438,057 | - | 2,676,287 | D | C |
| 09 Dec, 2025 | Omid Farokhzad | Class A Common Stock | A | 2,117,138 | - | 2,117,138 | I | C |
| 09 Dec, 2025 | Omid Farokhzad | Class B Common Stock | D | 1,438,057 | $0.00 | 0 | D | C |
| 09 Dec, 2025 | Omid Farokhzad | Class B Common Stock | D | 2,117,138 | $0.00 | 0 | I | C |
| 19 Nov, 2025 | David R. Horn | Class A Common Stock | D | 6,797 | $1.97 | 436,802 | D | S |
| 19 Nov, 2025 | Omid Farokhzad | Class A Common Stock | D | 33,838 | $1.97 | 1,238,230 | D | S |
| 02 Sep, 2025 | Isaac Ro | Class A Common Stock | A | 41,000 | $0.00 | 41,000 | D | A |
| 02 Sep, 2025 | Isaac Ro | Stock Option (right to buy) | A | 61,000 | $0.00 | 61,000 | D | A |
| 20 Aug, 2025 | David R. Horn | Class A Common Stock | D | 6,827 | $2.04 | 436,802 | D | S |
| 20 Aug, 2025 | Omid Farokhzad | Class A Common Stock | D | 33,992 | $2.04 | 1,272,068 | D | S |
| 07 Jul, 2025 | Meeta Gulyani | Class A Common Stock | A | 20,500 | $0.00 | 107,543 | D | A |
| 07 Jul, 2025 | Meeta Gulyani | Stock Option (right to buy) | A | 30,500 | $0.00 | 30,500 | D | A |
| 20 May, 2025 | Omid Farokhzad | Class A Common Stock | D | 33,663 | $2.08 | 1,306,060 | D | S |
| 20 May, 2025 | David R. Horn | Class A Common Stock | D | 6,760 | $2.08 | 443,629 | D | S |