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Filing
SCHEDULE 13G/A
SCHEDULE 13G/A0001193125-26-015156·SERA PROGNOSTICS, INC.
Schedule 13G ownership disclosure
Sera Prognostics Inc
Class A Common Stock, par value $0.0001 per share · CUSIP: 81749D107
Event date: 2025-12-31
Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.
- Filing-level shares
- Unavailable
- Percent of class
- Unavailable
- Whetstone Capital Advisors, LLC
Shares: 3,459,713 · Class: 9.2%
- David Atterbury
Shares: 3,459,713 · Class: 9.2%
Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.
Source: SEC EDGAR filingFiling metadata
- Accession number
- 0001193125-26-015156
- Form type
- SCHEDULE 13G/A
- Filer
- SERA PROGNOSTICS, INC.
- CIK
- CIK 1534969
- Filed
- Jan 16, 2026
- Reporting period
- Dec 31, 2025
- Description
- Schedule 13G beneficial ownership