STAA's three largest insider shareholders as of May 23, 2026 are Partners, L.P. Broadwood (Director, 16.12Mn shares), Caren L Mason (President Ceo, 152.41K shares), Hans-Martin Blickensdoerfer (Sr. Vp, Comm. Ops, China, 83.11K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Stephen C Farrell | President Ceo | 35,156 | 0 | 06 Mar, 2025 |
| Nathaniel Sisitsky | Chief Legal Officer | 22,812 | 0 | 12 Dec, 2025 |
| Aimee S Weisner | - | 15,352 | 0 | 24 Jun, 2024 |
| Lou Silverman | - | 2,924 | 0 | 12 Aug, 2021 |
| Partners, L.P. Broadwood | - | 16,123,842 | 0 | 13 Mar, 2026 |
| Gilbert H Kliman | - | 10,457 | 0 | 04 Dec, 2023 |
| Caren L Mason | President Ceo | 152,415 | 0 | 06 Jun, 2022 |
| Hans-Martin Blickensdoerfer | Sr. Vp, Comm. Ops, China | 83,110 | 0 | 08 Mar, 2022 |
| Samuel J Gesten | Chief Legal Officer | 43,665 | 0 | 21 Mar, 2023 |
| Patrick F. Williams | Chief Financial Officer | 56,242 | 0 | 14 Mar, 2025 |
| James E Francese | Sr. Vp, Comm. Ops., Na, Apac | 42,660 | 0 | 21 Mar, 2023 |
| K Peony Yu | - | 2,786 | 0 | 16 Jun, 2023 |
| Thomas G Frinzi | President Ceo | 81,294 | 0 | 03 Jan, 2024 |
| Arthur C Butcher | - | 4,208 | 0 | 19 Aug, 2024 |
| Keith Holliday | Chief Technology Officer | 28,157 | 0 | 21 Mar, 2023 |
| Magda Michna | Chief Development Officer | 29,668 | 0 | 16 Mar, 2026 |
| Scott D Barnes | Chief Medical Officer | 41,502 | 0 | 21 Mar, 2023 |
| Elizabeth Yeu Lin | - | 5,099 | 0 | 24 Jun, 2024 |
| Wei Jiang | - | 66,444 | 0 | 14 Jan, 2026 |
| Robert Studholme | Senior Vp, Operations | 31,980 | 0 | 10 Mar, 2023 |
| Warren Foust | Interim Co Ceo And Pres. Coo | 63,588 | 0 | 16 Mar, 2026 |
| Lilian Yansheng Zhou | - | 4,571 | 0 | 24 Jun, 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 | Magda Michna | Common Stock | A | 6,178 | $0.00 | 20,622 | D | M |
| 12 Mar, 2026 | Warren Foust | Common Stock | A | 8,175 | $0.00 | 34,263 | D | M |
| 14 Mar, 2026 | Warren Foust | Common Stock | A | 19,550 | $0.00 | 53,813 | D | M |
| 12 Mar, 2026 | Magda Michna | Common Stock | D | 2,216 | $18.39 | 18,406 | D | F |
| 14 Mar, 2026 | Warren Foust | Common Stock | A | 9,775 | $0.00 | 63,588 | D | M |
| 14 Mar, 2026 | Magda Michna | Common Stock | A | 14,663 | $0.00 | 33,069 | D | M |
| 12 Mar, 2026 | Warren Foust | Restricted Stock Units | D | 8,175 | $0.00 | 8,175 | D | M |
| 14 Mar, 2026 | Magda Michna | Common Stock | A | 2,932 | $0.00 | 36,001 | D | M |
| 13 Mar, 2026 | Warren Foust | Restricted Stock Units | A | 45,117 | $0.00 | 45,117 | D | A |
| 14 Mar, 2026 | Magda Michna | Common Stock | D | 6,313 | $18.84 | 29,668 | D | F |
| 14 Mar, 2026 | Warren Foust | Restricted Stock Units | D | 19,550 | $0.00 | 39,101 | D | M |
| 12 Mar, 2026 | Magda Michna | Restricted Stock Units | D | 6,178 | $0.00 | 6,178 | D | M |
| 13 Mar, 2026 | Magda Michna | Restricted Stock Units | A | 33,838 | $0.00 | 33,838 | D | A |
| 14 Mar, 2026 | Warren Foust | Restricted Stock Units | D | 9,775 | $0.00 | 19,551 | D | M |
| 14 Mar, 2026 | Magda Michna | Restricted Stock Units | D | 14,663 | $0.00 | 29,326 | D | M |
| 14 Mar, 2026 | Magda Michna | Restricted Stock Units | D | 2,932 | $0.00 | 5,866 | D | M |
| 13 Mar, 2026 | Deborah J Andrews | Restricted Stock Units | A | 39,809 | $0.00 | 39,809 | D | A |
| 11 Mar, 2026 | Partners, L.P. Broadwood | Common Stock | A | 54,764 | $17.52 | 15,508,393 | D | P |
| 12 Mar, 2026 | Partners, L.P. Broadwood | Common Stock | A | 299,432 | $18.12 | 15,807,825 | D | P |
| 13 Mar, 2026 | Partners, L.P. Broadwood | Common Stock | A | 316,017 | $18.62 | 16,123,842 | D | P |