Hunter Heidi — SEC Form 4 filings
SEC reporting owner CIK 1891841. 7 Form 4 filings on record with FilingPulse; latest filed 2026-06-09.
Transaction summary — filings shown
Covers all 7 filings on record, filed 2024-06-07 to 2026-06-09. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 1 leg across 1 filing — 15,000 shares, $20,884 total (shares × price as filed).
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 6.
- Largest priced transaction: purchase of 15,000 shares @ $1.39 ($20,884) in IO Biotech, Inc., filed 2025-06-02.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| IO Biotech, Inc. (IOBT) | Director | 3 | 1 leg · 15,000 sh · $20,884 | — | 2 |
| SUTRO BIOPHARMA, INC. (STRO) | Director | 4 | — | — | 4 |
Form 4 filings — Hunter Heidi
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-09 | 4 | SUTRO BIOPHARMA, INC. (STRO) | Grant/award (A): 10,000 (derivative) @ $0 | EDGAR |
| 2025-12-29 | 4 | SUTRO BIOPHARMA, INC. (STRO) | Grant/award (A): 1,500 (derivative) @ $0 | EDGAR |
| 2025-06-10 | 4 | SUTRO BIOPHARMA, INC. (STRO) | Grant/award (A): 50,000 (derivative) @ $0 | EDGAR |
| 2025-06-06 | 4 | IO Biotech, Inc. (IOBT) | Grant/award (A): 35,144 (derivative) @ $0 | EDGAR |
| 2025-06-02 | 4 | IO Biotech, Inc. (IOBT) | Purchase (P): 15,000 @ $1.39 | EDGAR |
| 2024-06-10 | 4 | SUTRO BIOPHARMA, INC. (STRO) | Grant/award (A): 35,000 (derivative) @ $0 | EDGAR |
| 2024-06-07 | 4 | IO Biotech, Inc. (IOBT) | Grant/award (A): 45,642 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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