BAKER BROS. ADVISORS LP - 12 Feb 2025 SCHEDULE 13D Report for Sera Prognostics, Inc. Class A Common Stock, $0.0001 par value per share (SERA)

Filing Manager
BAKER BROS. ADVISORS LP
Reporting Manager
Baker Bros. Advisors LP
Security
Sera Prognostics, Inc. Class A Common Stock, $0.0001 par value per share
Symbol
SERA
Shares outstanding
34,150,124 shares
Disclosed Ownership
5,498,170 shares
Ownership
16%
Form type
SCHEDULE 13D
Filing time
14 Feb 2025, 16:33:26 UTC
Date of event
12 Feb 2025
SEC
View on sec.gov

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Quoteable Key Fact

"BAKER BROS. ADVISORS LP disclosed 16% ownership in Sera Prognostics, Inc. Class A Common Stock, $0.0001 par value per share (SERA) on 12 Feb 2025."

Quick Takeaways

  • BAKER BROS. ADVISORS LP filed SCHEDULE 13D for Sera Prognostics, Inc. Class A Common Stock, $0.0001 par value per share (SERA).
  • Disclosed ownership: 16%.
  • Date of event: 12 Feb 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 14 Feb 2025, 16:33.

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.

Official SEC Source

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Baker Bros. Advisors LP 16% 5,498,170 5,498,170 0 /s/ Scott L. Lessing By: Baker Bros. Advisors (GP) LLC, its general partner Scott L. Lessing/ President 0001263508
Baker Bros. Advisors (GP) LLC 16% 5,498,170 5,498,170 0 /s/ Scott L. Lessing Scott L. Lessing/ President 0001580575
Julian C. Baker 16% 5,498,170 5,498,170 0 /s/ Julian C. Baker Julian C. Baker 0001087939
Felix J. Baker 16% 5,498,170 5,498,170 0 /s/ Felix J. Baker Felix J. Baker 0001087940

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