LTGO insider filings
Latigo Biotherapeutics, Inc. — 7 most recent insider filings (SEC Forms 3/4/5) from EDGAR, normalized by FilingPulse. Latest filing: 2026-08-12. Screen LTGO transaction legs live →
Insider transaction summary — last 90 days
2026-07-10 to 2026-10-08, from the filings listed below: 7 insider filings (Forms 3/4/5). Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 2 legs across 2 filings by 7 insiders — 280,000 shares, $5,040,000 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, …): 67.
- Largest priced transaction: purchase of 140,000 shares @ $18.00 ($2,520,000) by Foresite Capital Management V, LLC, filed 2026-08-10.
By insider — same window
Open-market purchase/sale legs on non-derivative securities, grouped by the filing's reporting owner(s); joint filings appear once. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
Recent insider filings — Latigo Biotherapeutics, Inc.
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-12 | 4 | 5AM Ventures VI, L.P. — 10% owner 5AM Partners VI, LLC — 10% owner 5AM Opportunities II, L.P. — 10% owner 5AM Opportunities II (GP), LLC — 10% owner PARMAR KUSH — 10% owner Schwab Andrew J. — 10% owner | Conversion (C): 4,975,543 · Conversion (C): 2,350,419 · Conversion (C): 3,152,305 (derivative) @ $0 · Conversion (C): 1,823,238 (derivative) @ $0 · Conversion (C): 866,018 (derivative) @ $0 · Conversion (C): 1,484,401 (derivative) @ $0 | EDGAR |
| 2026-08-12 | 4 | Sanofi — 10% owner | Conversion (C): 494,800 · Conversion (C): 177,978 · Conversion (C): 494,800 (derivative) · Conversion (C): 177,978 (derivative) | EDGAR |
| 2026-08-11 | 4 | Westlake BioPartners Fund I, L.P. — 10% owner Westlake BioPartners GP I, LLC — 10% owner Westlake BioPartners Fund II, L.P. — 10% owner Westlake BioPartners GP II, LLC — 10% owner Westlake BioPartners Opportunity Fund I, L.P. — 10% owner Westlake BioPartners Opportunity GP I, LLC — 10% owner | Conversion (C): 938,979 · Conversion (C): 3,547,842 · Conversion (C): 1,027,635 · Conversion (C): 3,464,072 · Conversion (C): 1,484,401 · Conversion (C): 165,519 · +8 more | EDGAR |
| 2026-08-10 | 4 | Foresite Capital Management V, LLC — 10% owner Foresite Capital Fund V, L.P. — 10% owner Foresite Capital Opportunity Management V, LLC — 10% owner Foresite Capital Opportunity Fund V, L.P. — 10% owner Foresite Capital Management VI LLC — 10% owner Foresite Capital Fund VI LP — 10% owner | Conversion (C): 3,117,664 @ $0 · Conversion (C): 445,320 @ $0 · Conversion (C): 1,125,823 @ $0 · Conversion (C): 742,201 @ $0 · Purchase (P): 140,000 @ $18 · Conversion (C): 195,776 · +9 more | EDGAR |
| 2026-08-10 | 4 | SEIDENBERG BETH C — Director, 10% owner | Conversion (C): 938,979 · Conversion (C): 3,547,842 · Conversion (C): 1,027,635 · Conversion (C): 3,464,072 · Conversion (C): 1,484,401 · Conversion (C): 165,519 · +8 more | EDGAR |
| 2026-08-10 | 4 | Tananbaum James B. — Director, 10% owner | Conversion (C): 3,117,664 · Conversion (C): 445,320 · Conversion (C): 1,125,823 · Conversion (C): 742,201 · Purchase (P): 140,000 @ $18 · Conversion (C): 195,776 · +9 more | EDGAR |
| 2026-08-10 | 4 | SMITH TODD N — Director | Grant/award (A): 105,542 (derivative) @ $0 | EDGAR |
Recent 8-K events — Latigo Biotherapeutics, Inc.
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2026-09-03 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-08-10 | 8-K | 5.03 — Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
Registration filings — Latigo Biotherapeutics, Inc.
Securities Act registration lifecycles tracked for this issuer (live-forward since 2026-08-01), threaded by SEC file number.
- SEC file 333-297518 (S-1) — latest: Final prospectus (424B4), filed 2026-08-07
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