BAKER BROS. ADVISORS LP - 14 Aug 2025 SCHEDULE 13D/A Report for IGM Biosciences, Inc. Common Stock, $0.01 par value per share (IGMS)

Filing Manager
BAKER BROS. ADVISORS LP
Reporting Manager
Baker Bros. Advisors LP
Security
IGM Biosciences, Inc. Common Stock, $0.01 par value per share
Symbol
IGMS
Disclosed Ownership
0 shares
Ownership
0%
Form type
SCHEDULE 13D/A
Filing time
18 Aug 2025, 17:52:19 UTC
Date of event
14 Aug 2025
SEC
View on sec.gov

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Quoteable Key Fact

"BAKER BROS. ADVISORS LP disclosed 0% ownership in IGM Biosciences, Inc. Common Stock, $0.01 par value per share (IGMS) on 14 Aug 2025."

Quick Takeaways

  • BAKER BROS. ADVISORS LP filed SCHEDULE 13D/A for IGM Biosciences, Inc. Common Stock, $0.01 par value per share (IGMS).
  • Disclosed ownership: 0%.
  • Date of event: 14 Aug 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 18 Aug 2025, 17:52.

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 0% 0 0 0 /s/ Scott L. Lessing By: Baker Bros. Advisors (GP) LLC, its general partner Scott L. Lessing/ President 0001263508
Baker Bros. Advisors (GP) LLC 0% 0 0 0 /s/ Scott L. Lessing Scott L. Lessing/ President 0001580575
Julian C. Baker 0% 0 0 0 /s/ Julian C. Baker Julian C. Baker 0001087939
Felix J. Baker 0% 0 0 0 /s/ Felix J. Baker Felix J. Baker 0001087940

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