Sutro Biopharma, Inc. (STRO) Insider Ownership

Historic Insider Ownership Trends

According to recent filings covering the 90 days ending February 19, 2026, the three most significant insider holders at Sutro Biopharma are Ceo William J Newell (40.91K shares), Cfo And Secretary Edward C Albini (16.08K shares), Chief Executive Officer Jane Chung (13.89K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
William J Newell Ceo 40,906 07 Mar, 2025
Edward C Albini Cfo And Secretary 16,081 19 May, 2025
Linda A Fitzpatrick Chief People & Comm. Officer 11,974 05 May, 2025
Trevor Hallam Pres. Rsrch & Cf. Sctific Ofcr 10,037 17 Apr, 2023
Anne Elizabeth Borgman Chief Medical Officer 9,745 05 May, 2025
Hans-Peter Gerber Chief Scientific Officer 7,183 16 Oct, 2025
David Pauling Chief Admin. Ofcr. & Gc 7,174 16 Oct, 2025
Venkatesh Srinivasan Chief Tech Op Officer 5,369 05 May, 2025
Connie Matsui 5,000 16 Oct, 2025
Anik Shabbir Chief Technical Ops. Officer 4,083 07 Mar, 2023
Arturo Md Molina Chief Medical Officer 3,774 07 Mar, 2022
Daniel H Petree 2,246 29 Jun, 2023
Gregory K. Chow Cfo 1,975 16 Oct, 2025
Barbara Leyman Chief Business Officer 1,606 26 Aug, 2025
Nicki Vasquez Chief Port. Strat & Alnce Ofcr 1,428 31 Jan, 2024
Jane Chung Chief Executive Officer 13,891 16 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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
12 Dec, 2025 Jane Chung Common Stock A 2,500 $0.00 14,785 D M
12 Dec, 2025 Jane Chung Common Stock D 894 $8.02 13,891 D F
15 Oct, 2025 Connie Matsui Common Stock A 50,000 $0.80 5,000 D P
15 Oct, 2025 Gregory K. Chow Common Stock A 19,750 $0.81 1,975 D P
15 Oct, 2025 Jane Chung Common Stock A 12,500 $0.80 12,285 D P
15 Oct, 2025 Hans-Peter Gerber Common Stock A 17,000 $0.80 7,183 D P
15 Oct, 2025 David Pauling Common Stock A 12,504 $0.80 7,174 D P
18 Sep, 2025 Hans-Peter Gerber Common Stock D 13,417 $0.90 5,483 D F
18 Sep, 2025 Hans-Peter Gerber Common Stock A 37,500 $0.00 6,825 D M
09 Aug, 2025 Jane Chung Common Stock D 6,708 $0.80 11,035 D F
09 Aug, 2025 Jane Chung Common Stock A 18,750 $0.00 11,706 D M
08 Jul, 2025 Barbara Leyman - - 2,500 D
08 Jul, 2025 Barbara Leyman Common Stock D 8,944 $0.78 1,606 D F
08 Jul, 2025 Barbara Leyman - - 1,606 D
08 Jul, 2025 Barbara Leyman Common Stock A 25,000 $0.00 2,500 D M
15 May, 2025 Edward C Albini - - 17,680 D
15 May, 2025 Edward C Albini Common Stock A 11,156 $0.00 16,768 D M
15 May, 2025 Edward C Albini - - 16,768 D
15 May, 2025 Edward C Albini - - 15,652 D
15 May, 2025 Edward C Albini Common Stock A 24,438 $0.00 15,652 D M