As of March 23, 2026, the three largest insider holders of SERA are Zhenya Lindgardt (Chief Executive Officer, 763.93K shares), Austin Aerts (Chief Financial Officer, 271.54K shares), Paul Kearney (Chief Data Officer, 165.36K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Zhenya Lindgardt | Chief Executive Officer | 892,754 | 0 | 13 Mar, 2026 |
| Zhenya Lindgardt | Chief Executive Officer | 763,926 | 0 | 11 Dec, 2025 |
| Austin Aerts | Chief Financial Officer | 308,667 | 0 | 13 Mar, 2026 |
| Austin Aerts | Chief Financial Officer | 271,540 | 0 | 10 Mar, 2026 |
| Paul Kearney | Chief Data Officer | 165,357 | 0 | 10 Mar, 2026 |
| Paul Kearney | Chief Data Officer | 163,961 | 0 | 12 Mar, 2026 |
| Benjamin Jackson | General Counsel | 158,935 | 0 | 13 Mar, 2026 |
| John J. Boniface | Chief Scientific Officer | 147,359 | 0 | 10 Mar, 2026 |
| John J. Boniface | Chief Scientific Officer | 145,842 | 0 | 12 Mar, 2026 |
| Benjamin Jackson | General Counsel | 115,747 | 0 | 10 Mar, 2026 |
| Ryan Trimble | 0 | 100,554 | 21 Jul, 2021 | |
| Tiffany Eul Davis Inglis | Chief Medical Officer | 92,437 | 0 | 13 Mar, 2026 |
| Dyaarl Lee Jr. Anderson | Chief Commercial Officer | 79,569 | 0 | 13 Mar, 2026 |
| Robert Gardner Harrison | Chief Information Officer | 77,428 | 0 | 10 Mar, 2026 |
| Robert Gardner Harrison | Chief Information Officer | 76,712 | 0 | 12 Mar, 2026 |
| Tiffany Eul Davis Inglis | Chief Medical Officer | 75,000 | 0 | 15 Oct, 2025 |
| Dyaarl Lee Jr. Anderson | Chief Commercial Officer | 67,114 | 0 | 23 Jun, 2025 |
| Mansoor Raza Mirza | 57,740 | 0 | 05 Dec, 2025 | |
| Joshua Phillips | 57,005 | 0 | 06 Jun, 2025 | |
| Ox Healthcare Partners, Llc Blue | 0 | 46,744 | 19 Jul, 2022 | |
| Kim P. Kamdar | 32,573 | 0 | 04 Feb, 2026 | |
| Jeffrey Thomas Elliott | 30,534 | 0 | 21 Mar, 2025 | |
| Michael R Foley | Chief Medical Officer | 27,000 | 0 | 07 Mar, 2023 |
| Ryan Trimble | 22,713 | 0 | 06 Jun, 2025 | |
| Jane F Barlow | 22,713 | 0 | 06 Jun, 2025 | |
| Nadia Altomare | Chief Commercial Officer | 18,300 | 0 | 07 Mar, 2023 |
| Sandra Aj Lawrence | 18,033 | 0 | 06 Mar, 2026 | |
| Marcus Dean Wilson | 7,117 | 0 | 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 |
|---|---|---|---|---|---|---|---|---|
| 12 Mar, 2026 | Tiffany Eul Davis Inglis | Class A Common Stock | A | 17,437 | $0.00 | 92,437 | D | A |
| 12 Mar, 2026 | Benjamin Jackson | Class A Common Stock | A | 44,215 | $0.00 | 158,935 | D | A |
| 12 Mar, 2026 | Austin Aerts | Class A Common Stock | A | 44,215 | $0.00 | 308,667 | D | A |
| 12 Mar, 2026 | Zhenya Lindgardt | Class A Common Stock | A | 154,440 | $0.00 | 892,754 | 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 | Stock Option (right to buy) | A | 68,550 | $0.00 | 68,550 | D | A |
| 12 Mar, 2026 | Benjamin Jackson | Stock Option (right to buy) | A | 68,550 | $0.00 | 68,550 | 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 | Zhenya Lindgardt | Stock Option (right to buy) | A | 239,442 | $0.00 | 239,442 | D | A |
| 12 Mar, 2026 | Tiffany Eul Davis Inglis | Stock Option (right to buy) | A | 27,034 | $0.00 | 27,034 | D | A |
| 10 Mar, 2026 | Zhenya Lindgardt | Class A Common Stock | D | 22,639 | $1.90 | 741,287 | D | S |
| 10 Mar, 2026 | Austin Aerts | Class A Common Stock | D | 6,069 | $1.90 | 265,471 | D | S |
| 11 Mar, 2026 | Paul Kearney | Class A Common Stock | D | 1,396 | $2.04 | 163,961 | D | S |
| 11 Mar, 2026 | Robert Gardner Harrison | Class A Common Stock | D | 716 | $2.04 | 76,712 | D | S |
| 11 Mar, 2026 | John J. Boniface | Class A Common Stock | D | 1,517 | $2.04 | 145,842 | D | S |
| 11 Mar, 2026 | Benjamin Jackson | Class A Common Stock | D | 1,027 | $2.04 | 114,720 | 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 | Benjamin Jackson | Class A Common Stock | D | 3,119 | $1.96 | 115,747 | D | S |