Over the 90-day window ending February 19, 2026, Sera Prognostics's three dominant insider ownership positions are held by Director Gregory C Critchfield (822.87K shares), Chief Executive Officer Zhenya Lindgardt (763.93K shares), Chief Financial Officer Austin Aerts (272.21K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Gregory C Critchfield | 822,866 | 06 Jun, 2025 | |
| Zhenya Lindgardt | Chief Executive Officer | 763,926 | 11 Dec, 2025 |
| Austin Aerts | Chief Financial Officer | 272,214 | 11 Dec, 2025 |
| Paul Kearney | Chief Data Officer | 167,383 | 11 Dec, 2025 |
| John J. Boniface | Chief Scientific Officer | 150,397 | 11 Dec, 2025 |
| Ryan Trimble | 123,267 | 06 Jun, 2025 | |
| Benjamin Jackson | General Counsel | 118,866 | 11 Dec, 2025 |
| Robert Gardner Harrison | Chief Information Officer | 82,788 | 27 Jan, 2026 |
| Tiffany Eul Davis Inglis | Chief Medical Officer | 75,000 | 15 Oct, 2025 |
| Dyaarl Lee Jr. Anderson | Chief Commercial Officer | 67,114 | 23 Jun, 2025 |
| Mansoor Raza Mirza | 57,740 | 05 Dec, 2025 | |
| Joshua Phillips | 57,005 | 06 Jun, 2025 | |
| Ox Healthcare Partners, Llc Blue | 46,744 | 19 Jul, 2022 | |
| Jay M Moyes | Chief Financial Officer | 35,630 | 07 Mar, 2023 |
| Kim P. Kamdar | 32,573 | 04 Feb, 2026 | |
| Jeffrey Thomas Elliott | 30,534 | 21 Mar, 2025 | |
| Michael R Foley | Chief Medical Officer | 27,000 | 07 Mar, 2023 |
| Jane F Barlow | 22,713 | 06 Jun, 2025 | |
| Sandra Aj Lawrence | 19,593 | 08 Dec, 2025 | |
| Nadia Altomare | Chief Commercial Officer | 18,300 | 07 Mar, 2023 |
| Marcus Dean Wilson | 7,117 | 15 Jul, 2024 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 04 Feb, 2026 | Kim P. Kamdar | Class A Common Stock | D | 30,920 | $0.00 | 0 | I | J |
| 04 Feb, 2026 | Kim P. Kamdar | Class A Common Stock | A | 3,231 | $0.00 | 32,573 | D | J |
| 27 Jan, 2026 | Robert Gardner Harrison | Class A Common Stock | D | 2,000 | $2.97 | 82,788 | D | S |
| 30 Dec, 2025 | Robert Gardner Harrison | Class A Common Stock | D | 2,000 | $3.00 | 84,788 | D | S |
| 10 Dec, 2025 | Robert Gardner Harrison | Class A Common Stock | D | 616 | $3.31 | 86,788 | D | S |
| 10 Dec, 2025 | Benjamin Jackson | - | - | 118,866 | D | |||
| 10 Dec, 2025 | Benjamin Jackson | Class A Common Stock | D | 892 | $3.31 | 118,866 | D | S |
| 10 Dec, 2025 | John J. Boniface | Class A Common Stock | D | 1,332 | $3.31 | 150,397 | D | S |
| 10 Dec, 2025 | Paul Kearney | Class A Common Stock | D | 1,213 | $3.31 | 167,383 | D | S |
| 10 Dec, 2025 | Zhenya Lindgardt | Class A Common Stock | D | 4,155 | $3.31 | 763,926 | D | S |
| 10 Dec, 2025 | Austin Aerts | Class A Common Stock | D | 873 | $3.31 | 272,214 | D | S |
| 09 Dec, 2025 | Zhenya Lindgardt | Class A Common Stock | D | 28,215 | $3.04 | 768,081 | D | S |
| 09 Dec, 2025 | Austin Aerts | Class A Common Stock | D | 5,232 | $3.04 | 273,087 | D | S |
| 09 Dec, 2025 | Austin Aerts | - | - | 273,087 | D | |||
| 08 Dec, 2025 | Sandra Aj Lawrence | - | - | 19,593 | D | |||
| 08 Dec, 2025 | Sandra Aj Lawrence | Class A Common Stock | D | 1,560 | $3.05 | 19,593 | D | S |
| 05 Dec, 2025 | Mansoor Raza Mirza | Class A Common Stock | D | 292 | $3.05 | 57,740 | D | S |
| 02 Dec, 2025 | Robert Gardner Harrison | Class A Common Stock | D | 2,000 | $2.93 | 87,404 | D | S |
| 02 Dec, 2025 | Paul Kearney | Class A Common Stock | A | 32,203 | $1.62 | 200,799 | D | M |
| 02 Dec, 2025 | Paul Kearney | Class A Common Stock | D | 32,203 | $2.94 | 168,596 | D | S |