CHUNG JANE (Chief Commercial Officer) exercised options at SUTRO BIOPHARMA, INC.
Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.
M · 1 exercise
Filed: 12/16/2025ACC: 0001872398-25-000005
Officer· Chief Commercial Officer
Since Aug 2021
-894.00
Net shares
Net seller
$7.2K
Total sold
0
Open market trades
0B · 0S
3
Total transactions
2.50K acquired · 3.39K disposed
Non-Derivative Transactions2
Common Stock
Direct
Shares
+2.50K
Price / share
—
Trade value
—
% of position
20.4%
12/12/2025
12.29K→14.79K
Common Stock
Direct
Shares
−894.00
Price / share
$8.02
Trade value
$7.17K
% of position
6.0%
12/12/2025
14.79K→13.89K
Total
Net shares
+1.61K
Net value
-$7.17K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 12/12/2025 | M · Option Exercise | +2.50K | — | — | 20.4% | 12.29K | 14.79K |
| Common Stock Direct | 12/12/2025 | F · Tax Withholding | −894.00 | $8.02 | $7.17K | 6.0% | 14.79K | 13.89K |
| Total | +1.61K | -$7.17K | ||||||
Derivative Transactions1
Restricted Stock Unit (RSU)
Direct
Converts to
Common Stock
2.50K shares
Shares
−2.50K
Strike price
Held after
5K
Exercisable
—
12/12/2025
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Restricted Stock Unit (RSU) Direct | Common Stock2.50K shares | 12/12/2025 | M · Option Exercise | −2.50K | — | 5K |