Insider · CIK 0001761333
Gregory K. Chow
cfoofficer
Files at STRO (SUTRO BIOPHARMA, INC.). First filing Oct 16, 2025, latest Oct 16, 2025.
Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
1 / 0
$16k bought, $0 sold
Signals
This insider’s open-market buys and sells, scored.
Transactions
Every row this insider has filed, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Dec 23, 2025 | STRO SUTRO BIOPHARMA, INC. | AGrant or award Stock Option (right to buy)derivative | +8,200 | $0.00 | $0 | 8,200 | Dec 29, 2025 |
| Oct 15, 2025 | STRO SUTRO BIOPHARMA, INC. | POpen-market purchase Common Stock | +19,750 | $0.81 | $16k | 19,750 | Oct 16, 2025 |
| Jun 2, 2025 | STRO SUTRO BIOPHARMA, INC. | AGrant or award Stock Option (right to buy)derivative | +275,000 | $0.00 | $0 | 275,000 | Jun 2, 2025 |
| Jun 2, 2025 | STRO SUTRO BIOPHARMA, INC. | AGrant or award Restricted Stock Unit (RSU)derivative | +100,000 | $0.00 | $0 | 100,000 | Jun 2, 2025 |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.