STRO insider buying
Every open-market purchase of Sutro Biopharma, Inc. (STRO) stock by its officers, directors and major shareholders, from SEC Form 4 filings.
Bought, last 12 months$0
Insiders buying (12m)0
Purchases on record5
Last purchase filedOct 16, 2025
No open-market insider purchases of STRO were reported in the last 12 months. The most recent was filed on Oct 16, 2025: Pauling David (Chief Admin. Ofcr. & GC) bought 12,504 shares at $0.80, worth $10K. The largest purchase on record here is $40K by Matsui Connie on Oct 15, 2025.
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| Filed | Insider | Value | Shares | Price | Stake | Trade | |
|---|---|---|---|---|---|---|---|
| Oct 16 | Pauling DavidChief Admin. Ofcr. & GC | $10K | 12,504 | $0.80 | +21% | Oct 15 | SEC |
| Oct 16 | Gerber Hans-PeterChief Scientific Officer | $13.60K | 17,000 | $0.80 | +31% | Oct 15 | SEC |
| Oct 16 | Chung JaneChief Executive Officer, Director | $10K | 12,500 | $0.80 | +11% | Oct 15 | SEC |
| Oct 16 | Chow Gregory K.CFO | $16K | 19,750 | $0.81 | new | Oct 15 | SEC |
| Oct 16 | Matsui ConnieDirector | $40K | 50,000 | $0.80 | new | Oct 15 | SEC |