10 insiders reported 50 Form 4 transactions for SUTRO BIOPHARMA, INC. (STRO) over the past 18 months (most recent 2026-09-22). Recent activity: Gerber Hans-Peter (CHIEF SCIENTIFIC OFFICER) Buy 3,750 shares, Gerber Hans-Peter (CHIEF SCIENTIFIC OFFICER) Sell 1,345 shares, Chow Gregory K. (CFO) Buy 2,500 shares, Pauling David (Chief Admin. Ofcr. & GC) Buy 675 shares, Pauling David (Chief Admin. Ofcr. & GC) Sell 277 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-22 | Gerber Hans-Peter | CHIEF SCIENTIFIC OFFICER | Buy | 3,750 | $0 |
| 2026-09-22 | Gerber Hans-Peter | CHIEF SCIENTIFIC OFFICER | Sell | 1,345 | $20,632 |
| 2026-06-02 | Chow Gregory K. | CFO | Buy | 2,500 | $0 |
| 2026-03-06 | Pauling David | Chief Admin. Ofcr. & GC | Buy | 675 | $0 |
| 2026-03-06 | Pauling David | Chief Admin. Ofcr. & GC | Sell | 277 | $5,903 |
| 2026-03-06 | Chung Jane | Chief Executive Officer | Buy | 788 | $0 |
| 2026-03-06 | Chung Jane | Chief Executive Officer | Sell | 282 | $6,009 |
| 2026-03-03 | Chung Jane | Chief Executive Officer | Buy | 688 | $0 |
| 2026-03-03 | Pauling David | Chief Admin. Ofcr. & GC | Buy | 842 | $0 |
| 2026-03-03 | Pauling David | Chief Admin. Ofcr. & GC | Sell | 551 | $11,279 |
| 2026-03-03 | Pauling David | Chief Admin. Ofcr. & GC | Buy | 2,356 | $0 |
| 2026-03-03 | Pauling David | Chief Admin. Ofcr. & GC | Sell | 970 | $19,934 |
| 2026-03-03 | Chung Jane | Chief Executive Officer | Buy | 2,500 | $0 |
| 2026-03-03 | Chung Jane | Chief Executive Officer | Sell | 1,271 | $26,017 |
| 2026-03-03 | Chung Jane | Chief Executive Officer | Buy | 7,750 | $0 |
| 2026-03-03 | Chung Jane | Chief Executive Officer | Sell | 2,779 | $57,108 |
| 2026-03-03 | Gerber Hans-Peter | CHIEF SCIENTIFIC OFFICER | Buy | 1,125 | $0 |
| 2026-03-03 | Gerber Hans-Peter | CHIEF SCIENTIFIC OFFICER | Sell | 463 | $9,478 |
| 2026-03-03 | Gerber Hans-Peter | CHIEF SCIENTIFIC OFFICER | Buy | 2,843 | $0 |
| 2026-03-03 | Gerber Hans-Peter | CHIEF SCIENTIFIC OFFICER | Sell | 1,170 | $24,044 |
| 2026-03-03 | Pauling David | Chief Admin. Ofcr. & GC | Buy | 500 | $0 |
| 2025-12-16 | Chung Jane | Chief Executive Officer | Buy | 2,500 | $0 |
| 2025-12-16 | Chung Jane | Chief Executive Officer | Sell | 894 | $7,170 |
| 2025-10-16 | Chow Gregory K. | CFO | Buy | 19,750 | $15,998 |
| 2025-10-16 | Chung Jane | Chief Executive Officer | Buy | 12,500 | $10,000 |
来源：SEC Form 4 申报文件 · 截至 2026-09-22