Seer's top three insider shareholders as of April 17, 2026 are Omid Farokhzad (Ceo And Chair, 3.35Mn shares), Omid Farokhzad (Ceo And Chair, 2.12Mn shares), Robert Langer (Director, 804.52K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Omid Farokhzad | Ceo And Chair | 3,349,064 | 0 | 19 Feb, 2026 |
| Omid Farokhzad | Ceo And Chair | 0 | 2,117,138 | 11 Dec, 2025 |
| Robert Langer | - | 804,525 | 0 | 09 Jul, 2025 |
| David R. Horn | President Cfo | 501,262 | 0 | 19 Feb, 2026 |
| Omead Ostadan | President Coo | 378,238 | 0 | 01 Jun, 2022 |
| David Hallal | - | 355,128 | 0 | 14 Jun, 2024 |
| Elona Kogan | Chief Legal Officer | 273,142 | 0 | 23 Feb, 2024 |
| Mostafa Ronaghi | - | 224,903 | 0 | 16 Jun, 2023 |
| Terrance Mcguire | - | 0 | 215,070 | 11 Dec, 2025 |
| Cathy Friedman | - | 173,574 | 0 | 16 Jun, 2023 |
| Terrance Mcguire | - | 112,066 | 0 | 09 Jul, 2025 |
| 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 |
| Nicolas H Phd Roelofs | - | 74,996 | 0 | 09 Jul, 2025 |
| Dipchand Nishar | - | 69,704 | 0 | 09 Jul, 2025 |
| 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 | David R. Horn | Class A Common Stock | D | 7,743 | $1.99 | 501,262 | D | S |
| 18 Feb, 2026 | Omid Farokhzad | Class A Common Stock | D | 24,385 | $1.99 | 3,349,064 | D | S |
| 03 Feb, 2026 | David R. Horn | Class A Common Stock | A | 79,000 | $0.00 | 509,005 | D | A |
| 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 | 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 | Terrance Mcguire | Class A Common Stock | A | 4,088 | - | 215,070 | I | 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 | Terrance Mcguire | Class B Common Stock | D | 4,088 | $0.00 | 0 | I | C |
| 09 Dec, 2025 | Omid Farokhzad | Class B Common Stock | D | 2,117,138 | $0.00 | 0 | I | C |
| 19 Nov, 2025 | Omid Farokhzad | Class A Common Stock | D | 33,838 | $1.97 | 1,238,230 | D | S |
| 19 Nov, 2025 | David R. Horn | Class A Common Stock | D | 6,797 | $1.97 | 436,802 | 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 | Omid Farokhzad | Class A Common Stock | D | 33,992 | $2.04 | 1,272,068 | D | S |
| 20 Aug, 2025 | David R. Horn | Class A Common Stock | D | 6,827 | $2.04 | 436,802 | D | S |
| 07 Jul, 2025 | Terrance Mcguire | Class A Common Stock | A | 20,500 | $0.00 | 112,066 | D | A |
| 07 Jul, 2025 | Meeta Gulyani | Class A Common Stock | A | 20,500 | $0.00 | 107,543 | D | A |