Sutro Biopharma's three largest insider shareholders as of May 30, 2026 are William J Newell (Ceo, 29.25K shares), Jane Chung (Chief Executive Officer, 21.29K shares), Edward C Albini (Cfo And Secretary, 16.08K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Linda A Fitzpatrick | Chief People Comm. Officer | 11,974 | 0 | 05 May, 2025 |
| Connie Matsui | - | 5,000 | 0 | 16 Oct, 2025 |
| Edward C Albini | Cfo And Secretary | 16,081 | 0 | 19 May, 2025 |
| Daniel H Petree | - | 386 | 1,860 | 29 Jun, 2023 |
| William J Newell | Ceo | 29,253 | 0 | 07 Mar, 2025 |
| Trevor Hallam | Pres. Rsrch Cf. Sctific Ofcr | 10,037 | 0 | 17 Apr, 2023 |
| Arturo Md Molina | Chief Medical Officer | 3,774 | 0 | 07 Mar, 2022 |
| Anik Shabbir | Chief Technical Ops. Officer | 4,083 | 0 | 07 Mar, 2023 |
| Gregory K. Chow | Cfo | 1,975 | 0 | 16 Oct, 2025 |
| Jane Chung | Chief Executive Officer | 21,285 | 0 | 06 Mar, 2026 |
| Nicki Vasquez | Chief Port. Strat Alnce Ofcr | 1,428 | 0 | 31 Jan, 2024 |
| Anne Elizabeth Borgman | Chief Medical Officer | 9,745 | 0 | 05 May, 2025 |
| Venkatesh Srinivasan | Chief Tech Op Officer | 5,369 | 0 | 05 May, 2025 |
| Hans-Peter Gerber | Chief Scientific Officer | 9,518 | 0 | 03 Mar, 2026 |
| Barbara Leyman | Chief Business Officer | 1,606 | 0 | 26 Aug, 2025 |
| David Pauling | Chief Admin. Ofcr. Gc | 9,748 | 0 | 06 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 |
|---|---|---|---|---|---|---|---|---|
| 04 Mar, 2026 | Jane Chung | Common Stock | A | 788 | $0.00 | 21,567 | D | M |
| 04 Mar, 2026 | David Pauling | Common Stock | A | 675 | $0.00 | 10,025 | D | M |
| 04 Mar, 2026 | David Pauling | Common Stock | D | 277 | $21.31 | 9,748 | D | F |
| 04 Mar, 2026 | Jane Chung | Common Stock | D | 282 | $21.31 | 21,285 | D | F |
| 04 Mar, 2026 | Jane Chung | Restricted Stock Units (RSUs) | D | 788 | $0.00 | 0 | D | M |
| 04 Mar, 2026 | David Pauling | Restricted Stock Units (RSUs) | D | 675 | $0.00 | 0 | D | M |
| 02 Mar, 2026 | Gregory K. Chow | Stock Option (right to buy) | A | 40,000 | $0.00 | 40,000 | D | A |
| 01 Mar, 2026 | David Pauling | Common Stock | A | 500 | $0.00 | 7,673 | D | M |
| 01 Mar, 2026 | Jane Chung | Common Stock | A | 688 | $0.00 | 14,579 | D | M |
| 01 Mar, 2026 | Hans-Peter Gerber | Common Stock | A | 1,125 | $0.00 | 8,308 | D | M |
| 01 Mar, 2026 | Hans-Peter Gerber | Common Stock | D | 463 | $20.47 | 7,845 | D | F |
| 01 Mar, 2026 | David Pauling | Common Stock | A | 842 | $0.00 | 8,515 | D | M |
| 01 Mar, 2026 | Jane Chung | Common Stock | A | 2,500 | $0.00 | 17,079 | D | M |
| 02 Mar, 2026 | Gregory K. Chow | Restricted Stock Units (RSUs) | A | 5,000 | $0.00 | 5,000 | D | A |
| 02 Mar, 2026 | Hans-Peter Gerber | Common Stock | A | 2,843 | $0.00 | 10,688 | D | M |
| 01 Mar, 2026 | David Pauling | Common Stock | D | 551 | $20.47 | 7,964 | D | F |
| 01 Mar, 2026 | Jane Chung | Common Stock | D | 1,271 | $20.47 | 15,808 | D | F |
| 02 Mar, 2026 | Hans-Peter Gerber | Common Stock | D | 1,170 | $20.55 | 9,518 | D | F |
| 02 Mar, 2026 | Jane Chung | Common Stock | A | 7,750 | $0.00 | 23,558 | D | M |
| 02 Mar, 2026 | David Pauling | Common Stock | A | 2,356 | $0.00 | 10,320 | D | M |