Hunter Heidi
SEC insider (Form 3/4/5 filer). CIK 0001891841. Director at SUTRO BIOPHARMA, INC. (STRO) and 1 other issuer. 5 reported Form 4/5 transactions since Sep 2024; latest on Jun 5, 2026. Located in SOUTH SAN FRANCISCO, CA.
Companies Hunter Heidi has filed insider reports for
- SUTRO BIOPHARMA, INC. (STRO): Director
- IO Biotech, Inc. (IOBT): Director
Hunter Heidi
CIK: 0001891841
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (5 total)
- Jun 5, 2026STRO
SUTRO BIOPHARMA, INC.
AwardDirectStock Option (right to buy)
10K shares- - Dec 23, 2025STRO
SUTRO BIOPHARMA, INC.
AwardDirectStock Option (right to buy)
1.5K shares- - Jun 6, 2025STRO
SUTRO BIOPHARMA, INC.
AwardDirectStock Option (right to buy)
50K shares- - Jun 5, 2025IOBT
IO Biotech, Inc.
AwardDirectStock Option (Right to Buy)
35.1K shares- - May 30, 2025IOBT
IO Biotech, Inc.
PurchaseDirect15K shares at avg. $1.39$21K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 5, 2026 |  STRO SUTRO BIOPHARMA, INC. | Award Stock Option (right to buy) | 10,000 | - | - | Direct |
| Dec 23, 2025 | STRO SUTRO BIOPHARMA, INC. | Award Stock Option (right to buy) | 1,500 | - | - | Direct |
| Jun 6, 2025 | STRO SUTRO BIOPHARMA, INC. | Award Stock Option (right to buy) | 50,000 | - | - | Direct |
| Jun 5, 2025 |  IOBT IO Biotech, Inc. | Award Stock Option (Right to Buy) | 35,144 | - | - | Direct |
| May 30, 2025 | IOBT IO Biotech, Inc. | Purchase | 15,000 | $1.39 | $20,885 | Direct |
1-5 of 5 transactions