Chow Gregory K., CFO of Sutro Biopharma, Inc. ($STRO), made one open market purchase of company shares in the last 365 days, totaling about $16,000. His most recent buy occurred on October 15, 2025. This ranks him 3997th among nearly 5,000 insiders in our database by purchase amount, well below the average of $1.46 million across about 3.3 transactions per insider. He reported no open market sales during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 2, 2026 | SUTRO BIOPHARMA, INC. | $STRO | Chow Gregory K. | CFO | A | Stock Option (right to buy) | 40000 | $0.00 | 40,000.0000 | 85,135,290 | 9999.99% | 0.05% |
| March 2, 2026 | SUTRO BIOPHARMA, INC. | $STRO | Chow Gregory K. | CFO | A | Restricted Stock Units (RSUs) | 5000 | $0.00 | 5,000.0000 | 85,135,290 | 9999.99% | 0.01% |
| Dec. 23, 2025 | SUTRO BIOPHARMA, INC. | $STRO | Chow Gregory K. | CFO | A | Stock Option (right to buy) | 8200 | $0.00 | 8,200.0000 | 85,135,290 | 9999.99% | 0.01% |
| Oct. 15, 2025 | SUTRO BIOPHARMA, INC. | $STRO | Chow Gregory K. | CFO | P | Common Stock | 19750 | $0.81 | 19,750.0000 | 83,775,336 | 9999.99% | 0.02% |
| June 2, 2025 | SUTRO BIOPHARMA, INC. | $STRO | Chow Gregory K. | CFO | A | Stock Option (right to buy) | 275000 | $0.00 | 275,000.0000 | 83,775,336 | 9999.99% | 0.33% |
| June 2, 2025 | SUTRO BIOPHARMA, INC. | $STRO | Chow Gregory K. | CFO | A | Restricted Stock Unit (RSU) | 100000 | $0.00 | 100,000.0000 | 83,775,336 | 9999.99% | 0.12% |