As of April 17, 2026, the three largest insider holders of TARS are Capital Ix, Llc Vivo (TenPercentOwner, 2.47Mn shares), Michael Ackermann (Director, 1.21Mn shares), Bobak R. Azamian (President/Ceo And Board Chair, 857.99K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Capital Ix, Llc Vivo | - | 0 | 2,469,001 | 05 May, 2022 |
| Michael Ackermann | - | 1,208,273 | 0 | 17 Jun, 2022 |
| Bobak R. Azamian | President/Ceo And Board Chair | 0 | 857,991 | 30 Dec, 2025 |
| William J Phd Link | - | 116,332 | 0 | 18 Mar, 2026 |
| Michael Ackermann | - | 0 | 100,000 | 09 May, 2022 |
| Seshadri Neervannan | Chief Operating Officer | 82,791 | 0 | 24 Mar, 2026 |
| Bryan Wahl | General Counsel | 63,959 | 0 | 19 Mar, 2026 |
| Aziz Mottiwala | Chief Commercial Officer | 61,480 | 0 | 19 Mar, 2026 |
| Jeffrey S Farrow | - | 43,316 | 0 | 19 Mar, 2026 |
| Dianne C. Whitfield | Chief Human Resources Officer | 35,028 | 0 | 19 Mar, 2026 |
| Bobak R. Azamian | President/Ceo And Board Chair | 33,421 | 0 | 19 Mar, 2026 |
| Leonard M. Greenstein | Chief Financial Officer | 26,785 | 0 | 21 Apr, 2023 |
| Elizabeth Yeu Lin | Chief Medical Officer | 23,308 | 0 | 19 Mar, 2026 |
| Andrew D. Goldberg | - | 16,700 | 0 | 16 Jun, 2025 |
| Elizabeth Yeu Lin | - | 0 | 15,866 | 17 Aug, 2023 |
| Wendy L Yarno | - | 13,700 | 0 | 16 Jun, 2025 |
| Elizabeth Yeu Lin | - | 0 | 12,040 | 16 Sep, 2022 |
| Bhaskar Chaudhuri | - | 8,700 | 0 | 16 Jun, 2025 |
| Rosemary A Crane | - | 5,350 | 0 | 25 Jun, 2024 |
| Scott W Morrison | - | 4,684 | 0 | 16 Sep, 2025 |
| Mark J. Holdbrook | V.P., Clinical Affairs | 3,191 | 0 | 21 Mar, 2023 |
| Jose M. Trevejo | Chief Medical Officer | 2,251 | 0 | 22 Dec, 2023 |
| Katherine Goodrich | - | 2,233 | 0 | 14 Jan, 2026 |
| Seshadri Neervannan | Chief Operating Officer | 0 | 475 | 18 Dec, 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 |
|---|---|---|---|---|---|---|---|---|
| 20 Mar, 2026 | Seshadri Neervannan | Common Stock | D | 2,989 | $66.75 | 82,791 | D | S |
| 17 Mar, 2026 | Bryan Wahl | Common Stock | D | 4,084 | $69.42 | 72,315 | D | S |
| 17 Mar, 2026 | Aziz Mottiwala | Common Stock | D | 4,286 | $69.42 | 70,250 | D | S |
| 17 Mar, 2026 | Elizabeth Yeu Lin | Common Stock | D | 375 | $69.42 | 24,077 | D | S |
| 17 Mar, 2026 | Dianne C. Whitfield | Common Stock | D | 4,029 | $69.42 | 43,273 | D | S |
| 17 Mar, 2026 | Bobak R. Azamian | Common Stock | D | 10,972 | $69.42 | 57,052 | D | S |
| 17 Mar, 2026 | Seshadri Neervannan | Common Stock | D | 3,125 | $69.42 | 93,979 | D | S |
| 17 Mar, 2026 | Jeffrey S Farrow | Common Stock | D | 2,111 | $69.42 | 47,635 | D | S |
| 18 Mar, 2026 | Elizabeth Yeu Lin | Common Stock | D | 379 | $68.71 | 23,698 | D | S |
| 18 Mar, 2026 | Bobak R. Azamian | Common Stock | D | 11,667 | $68.71 | 45,385 | D | S |
| 18 Mar, 2026 | Seshadri Neervannan | Common Stock | D | 3,610 | $68.71 | 90,369 | D | S |
| 18 Mar, 2026 | Aziz Mottiwala | Common Stock | D | 4,330 | $68.71 | 65,920 | D | S |
| 18 Mar, 2026 | Bryan Wahl | Common Stock | D | 4,125 | $68.71 | 68,190 | D | S |
| 18 Mar, 2026 | Jeffrey S Farrow | Common Stock | D | 2,133 | $68.71 | 45,502 | D | S |
| 18 Mar, 2026 | Dianne C. Whitfield | Common Stock | D | 4,071 | $68.71 | 39,202 | D | S |
| 19 Mar, 2026 | Jeffrey S Farrow | Common Stock | D | 2,186 | $67.00 | 43,316 | D | S |
| 19 Mar, 2026 | Elizabeth Yeu Lin | Common Stock | D | 390 | $67.00 | 23,308 | D | S |
| 19 Mar, 2026 | Seshadri Neervannan | Common Stock | D | 4,589 | $67.00 | 85,780 | D | S |
| 19 Mar, 2026 | Dianne C. Whitfield | Common Stock | D | 4,174 | $67.00 | 35,028 | D | S |
| 19 Mar, 2026 | Bryan Wahl | Common Stock | D | 4,231 | $67.00 | 63,959 | D | S |