Holles Natalie C. — SEC Form 4 filings
SEC reporting owner CIK 1580111. 12 Form 4 filings on record with FilingPulse; latest filed 2026-06-24.
Transaction summary — filings shown
Covers all 12 filings on record, filed 2024-01-09 to 2026-06-24. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 2 legs across 2 filings — 33,780 shares, $411,514 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 36.
- Largest priced transaction: sale of 20,222 shares @ $12.18 ($246,300) in Third Harmonic Bio, Inc., filed 2024-05-10.
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 |
|---|---|---|---|---|---|
| Third Harmonic Bio, Inc. (THRD) | CEO, Director | 5 | — | 2 legs · 33,780 sh · $411,514 | 10 |
| Day One Biopharmaceuticals, Inc. (DAWN) | Director | 4 | — | — | 21 |
| Aura Biosciences, Inc. (AURA) | See Remarks, Director | 1 | — | — | 3 |
| LeonaBio, Inc. (LONA) | Director | 2 | — | — | 2 |
Form 4 filings — Holles Natalie C.
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-24 | 4 | LeonaBio, Inc. (LONA) | Grant/award (A): 2,333 (derivative) @ $0 | EDGAR |
| 2026-05-19 | 4 | Aura Biosciences, Inc. (AURA) | Grant/award (A): 600,118 @ $0 · Grant/award (A): 553,844 @ $0 · Grant/award (A): 2,169,103 (derivative) @ $0 | EDGAR |
| 2026-05-07 | 4 | LeonaBio, Inc. (LONA) | Grant/award (A): 56,000 (derivative) @ $0 | EDGAR |
| 2026-04-23 | 4 | Day One Biopharmaceuticals, Inc. (DAWN) | Disposition to issuer (D): 57,310 · Disposition to issuer (D): 40,000 (derivative) · Disposition to issuer (D): 40,300 (derivative) · Disposition to issuer (D): 28,700 (derivative) · Disposition to issuer (D): 37,500 (derivative) · Disposition to issuer (D): 32,335 (derivative) · +2 more | EDGAR |
| 2025-11-07 | 4 | Day One Biopharmaceuticals, Inc. (DAWN) | Disposition to issuer (D): 40,000 (derivative) @ $0 · Grant/award (A): 40,000 (derivative) @ $0 · Disposition to issuer (D): 40,300 (derivative) @ $0 · Grant/award (A): 40,300 (derivative) @ $0 · Disposition to issuer (D): 28,700 (derivative) @ $0 · Grant/award (A): 28,700 (derivative) @ $0 · +4 more | EDGAR |
| 2025-08-14 | 4 | Third Harmonic Bio, Inc. (THRD) | Other (J): 1,218,836 · Other (J): 998,854 (derivative) @ $0 · Other (J): 50,000 (derivative) @ $0 | EDGAR |
| 2025-06-04 | 4 | Day One Biopharmaceuticals, Inc. (DAWN) | Grant/award (A): 22,500 (derivative) @ $0 · Grant/award (A): 15,000 (derivative) @ $0 | EDGAR |
| 2025-01-17 | 4 | Third Harmonic Bio, Inc. (THRD) | Grant/award (A): 400,000 (derivative) @ $0 · Grant/award (A): 50,000 (derivative) @ $0 | EDGAR |
| 2024-05-28 | 4 | Day One Biopharmaceuticals, Inc. (DAWN) | Grant/award (A): 32,335 (derivative) @ $0 | EDGAR |
| 2024-05-10 | 4 | Third Harmonic Bio, Inc. (THRD) | Option exercise (M): 20,222 @ $4.20 · Sale (S): 20,222 @ $12.18 · Option exercise (M): 20,222 (derivative) @ $0 | EDGAR |
| 2024-04-15 | 4 | Third Harmonic Bio, Inc. (THRD) | Option exercise (M): 13,558 @ $4.20 · Sale (S): 13,558 @ $12.19 · Option exercise (M): 13,558 (derivative) @ $0 | EDGAR |
| 2024-01-09 | 4 | Third Harmonic Bio, Inc. (THRD) | Grant/award (A): 396,000 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-09 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
Need this as JSON?
GET https://api.filingpulse.io/v1/insider-trades?owner_cik=1580111 returns every filing on this page — normalized, with footnotes and derivative legs — and webhooks push new filings to you in seconds. API docs →