Sera Prognostics's top three insider shareholders as of June 18, 2026 are Zhenya Lindgardt (Chief Executive Officer, 892.75K shares), Gregory C Critchfield (Chief Executive Officer, 822.87K shares), Austin Aerts (Chief Financial Officer, 308.67K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Jay M Moyes | Chief Financial Officer | 35,630 | 0 | 07 Mar, 2023 |
| Gregory C Critchfield | Chief Executive Officer | 822,866 | 0 | 06 Jun, 2025 |
| Sandra Aj Lawrence | - | 18,033 | 0 | 06 Mar, 2026 |
| Robert Gardner Harrison | Chief Information Officer | 76,712 | 0 | 12 Mar, 2026 |
| Kim P. Kamdar | - | 32,573 | 0 | 04 Feb, 2026 |
| Mansoor Raza Mirza | - | 57,740 | 0 | 05 Dec, 2025 |
| Jeffrey Thomas Elliott | - | 30,534 | 0 | 21 Mar, 2025 |
| Jane F Barlow | - | 22,713 | 0 | 06 Jun, 2025 |
| Benjamin Jackson | General Counsel | 158,935 | 0 | 13 Mar, 2026 |
| John J. Boniface | Chief Scientific Officer | 145,842 | 0 | 12 Mar, 2026 |
| Ryan Trimble | - | 0 | 100,554 | 21 Jul, 2021 |
| Nadia Altomare | Chief Commercial Officer | 18,300 | 0 | 07 Mar, 2023 |
| Joshua Phillips | - | 57,005 | 0 | 06 Jun, 2025 |
| Marcus Dean Wilson | - | 7,117 | 0 | 15 Jul, 2024 |
| Ox Healthcare Partners, Llc Blue | - | 0 | 256,665 | 19 Jul, 2022 |
| Paul Kearney | Chief Data Officer | 163,961 | 0 | 12 Mar, 2026 |
| Zhenya Lindgardt | Chief Executive Officer | 892,754 | 0 | 13 Mar, 2026 |
| Michael R Foley | Chief Medical Officer | 27,000 | 0 | 07 Mar, 2023 |
| Austin Aerts | Chief Financial Officer | 308,667 | 0 | 13 Mar, 2026 |
| Dyaarl Lee Jr. Anderson | Chief Commercial Officer | 79,569 | 0 | 13 Mar, 2026 |
| Tiffany Eul Davis Inglis | Chief Medical Officer | 92,437 | 0 | 13 Mar, 2026 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 12 Mar, 2026 | Zhenya Lindgardt | Class A Common Stock | A | 154,440 | $0.00 | 892,754 | D | A |
| 12 Mar, 2026 | Benjamin Jackson | Class A Common Stock | A | 44,215 | $0.00 | 158,935 | D | A |
| 12 Mar, 2026 | Tiffany Eul Davis Inglis | Class A Common Stock | A | 17,437 | $0.00 | 92,437 | D | A |
| 12 Mar, 2026 | Dyaarl Lee Jr. Anderson | Class A Common Stock | A | 12,455 | $0.00 | 79,569 | D | A |
| 12 Mar, 2026 | Austin Aerts | Class A Common Stock | A | 44,215 | $0.00 | 308,667 | D | A |
| 12 Mar, 2026 | Benjamin Jackson | Stock Option (right to buy) | A | 68,550 | $0.00 | 68,550 | D | A |
| 12 Mar, 2026 | Austin Aerts | Stock Option (right to buy) | A | 68,550 | $0.00 | 68,550 | D | A |
| 12 Mar, 2026 | Zhenya Lindgardt | Stock Option (right to buy) | A | 239,442 | $0.00 | 239,442 | D | A |
| 12 Mar, 2026 | Dyaarl Lee Jr. Anderson | Stock Option (right to buy) | A | 19,310 | $0.00 | 19,310 | D | A |
| 12 Mar, 2026 | Tiffany Eul Davis Inglis | Stock Option (right to buy) | A | 27,034 | $0.00 | 27,034 | D | A |
| 11 Mar, 2026 | Robert Gardner Harrison | Class A Common Stock | D | 716 | $2.04 | 76,712 | D | S |
| 11 Mar, 2026 | Benjamin Jackson | Class A Common Stock | D | 1,027 | $2.04 | 114,720 | D | S |
| 10 Mar, 2026 | Austin Aerts | Class A Common Stock | D | 6,069 | $1.90 | 265,471 | D | S |
| 11 Mar, 2026 | John J. Boniface | Class A Common Stock | D | 1,517 | $2.04 | 145,842 | D | S |
| 10 Mar, 2026 | Zhenya Lindgardt | Class A Common Stock | D | 22,639 | $1.90 | 741,287 | D | S |
| 11 Mar, 2026 | Paul Kearney | Class A Common Stock | D | 1,396 | $2.04 | 163,961 | D | S |
| 11 Mar, 2026 | Austin Aerts | Class A Common Stock | D | 1,019 | $2.04 | 264,452 | D | S |
| 11 Mar, 2026 | Zhenya Lindgardt | Class A Common Stock | D | 2,973 | $2.04 | 738,314 | D | S |
| 09 Mar, 2026 | Paul Kearney | Class A Common Stock | D | 2,026 | $1.96 | 165,357 | D | S |
| 09 Mar, 2026 | John J. Boniface | Class A Common Stock | D | 3,038 | $1.96 | 147,359 | D | S |