Westlake BioPartners GP I, LLC — SEC Form 4 filings
SEC reporting owner CIK 2007650. 3 Form 4 filings on record with FilingPulse; latest filed 2026-08-11.
Transaction summary — filings shown
Covers all 3 filings on record, filed 2024-02-14 to 2026-08-11. 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 — 133,333 shares, $999,998 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, …): 20.
- Largest priced transaction: purchase of 133,333 shares @ $7.50 ($999,998) in Kyverna Therapeutics, Inc., filed 2025-12-22.
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 |
|---|---|---|---|---|---|
| Kyverna Therapeutics, Inc. (KYTX) | 10% owner | 2 | 1 leg · 133,333 sh · $999,998 | — | 6 |
| Latigo Biotherapeutics, Inc. (LTGO) | 10% owner | 1 | — | — | 14 |
Form 4 filings — Westlake BioPartners GP I, LLC
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-11 | 4 | Latigo Biotherapeutics, Inc. (LTGO) jointly with Westlake BioPartners Fund I, L.P., Westlake BioPartners Fund II, L.P., Westlake BioPartners GP II, LLC, Westlake BioPartners Opportunity Fund I, L.P., Westlake BioPartners Opportunity GP I, LLC | 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 |
| 2025-12-22 | 4 | Kyverna Therapeutics, Inc. (KYTX) jointly with Westlake BioPartners Opportunity Fund I, L.P., Westlake BioPartners Opportunity GP I, LLC, Westlake BioPartners Fund I, L.P. | Purchase (P): 133,333 @ $7.50 | EDGAR |
| 2024-02-14 | 4 | Kyverna Therapeutics, Inc. (KYTX) jointly with Westlake BioPartners Fund I, L.P., Westlake BioPartners Opportunity Fund I, L.P., Westlake BioPartners Opportunity GP I, LLC, Harper Sean E | Conversion (C): 3,787,940 · Conversion (C): 735,984 · Conversion (C): 4,401,771 (derivative) @ $0 · Conversion (C): 8,830,901 (derivative) @ $0 · Conversion (C): 4,006,624 (derivative) @ $0 · Conversion (C): 3,349,538 (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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