Quick Takeaways
- Westlake BioPartners Fund I, L.P. filed SCHEDULE 13G/A for Kyverna Therapeutics, Inc. Common Stock, par value $0.00001 per share (KYTX).
- Disclosed ownership: 7.8%.
- Date of event: 31 Dec 2025.
Westlake BioPartners Fund I, L.P. - 31 Dec 2025 SCHEDULE 13G/A Report for Kyverna Therapeutics, Inc. Common Stock, par value $0.00001 per share (KYTX)
- Filing Manager
- Westlake BioPartners Fund I, L.P.
- Reporting Manager
- Dr. Beth C. Seidenberg ("Seidenberg")
- Symbol
- KYTX
- Shares outstanding
- 59,708,423 shares
- Disclosed Ownership
- 4,657,257 shares
- Ownership
- 7.8%
- Form type
- SCHEDULE 13G/A
- Filing time
- 06 Feb 2026, 15:17:11 UTC
- Date of event
- 31 Dec 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"Westlake BioPartners Fund I, L.P. disclosed 7.8% ownership in Kyverna Therapeutics, Inc. Common Stock, par value $0.00001 per share (KYTX) on 31 Dec 2025."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 06 Feb 2026, 15:17.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Source Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (5)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Westlake BioPartners Fund I, L.P. ("Westlake Fund I") | 6.3% | 3,787,940 | 3,787,940 | 3,787,940 | /s/ Jennifer L. Kercher | Jennifer L. Kercher/Attorney-in-Fact*, Westlake BioPartners GP I, LLC, Its General Partner | |
| Westlake BioPartners GP I, LLC ("Westlake GP I") | 6.3% | 3,787,940 | 3,787,940 | 3,787,940 | /s/ Jennifer L. Kercher | Jennifer L. Kercher/Attorney-in-Fact* | |
| Westlake BioPartners Opportunity Fund I, L.P. ("Westlake Opportunity Fund I") | 1.5% | 869,317 | 869,317 | 869,317 | /s/ Jennifer L. Kercher | Jennifer L. Kercher/Attorney-in-Fact*, Westlake BioPartners Opportunity GP I, LLC, Its General Partner | |
| Westlake BioPartners Opportunity GP I, LLC ("Westlake Opportunity GP I") | 1.5% | 869,317 | 869,317 | 869,317 | /s/ Jennifer L. Kercher | Jennifer L. Kercher/Attorney-in-Fact* | |
| Dr. Beth C. Seidenberg ("Seidenberg") | 7.8% | 4,657,257 | 4,657,257 | 4,657,257 | /s/ Jennifer L. Kercher | Jennifer L. Kercher/Attorney-in-Fact* |