James E. Flynn - 27 Feb 2026 SCHEDULE 13D/A Report for Larimar Therapeutics, Inc. Common Stock, par value $0.01 per share (LRMR)

Filing Manager
James E. Flynn
Reporting Manager
Deerfield Management Company, L.P.
Security
Larimar Therapeutics, Inc. Common Stock, par value $0.01 per share
Symbol
LRMR
Shares outstanding
103,654,385 shares
Disclosed Ownership
35,667,474 shares
Ownership
34%
Form type
SCHEDULE 13D/A
Filing time
02 Mar 2026, 19:46:55 UTC
Date of event
27 Feb 2026
Previous filing
31 Jul 2025
SEC
View on sec.gov

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Quoteable Key Fact

"James E. Flynn disclosed 34% ownership in Larimar Therapeutics, Inc. Common Stock, par value $0.01 per share (LRMR) on 27 Feb 2026."

Quick Takeaways

  • James E. Flynn filed SCHEDULE 13D/A for Larimar Therapeutics, Inc. Common Stock, par value $0.01 per share (LRMR).
  • Disclosed ownership: 34%.
  • Date of event: 27 Feb 2026.

What Changed

  • Previous schedule filing date: 31 Jul 2025.
  • Current filing was accepted on 02 Mar 2026, 19:46.

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 (10)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Deerfield Private Design Fund III, L.P. 10% 10,622,928 0 10,622,928 /s/ Jonathan Isler Jonathan Isler, Attorney-in-Fact 0001603333
Deerfield Healthcare Innovations Fund, L.P. 7.9% 8,153,107 0 8,153,107 /s/ Jonathan Isler Jonathan Isler, Attorney-in-Fact 0001646981
Deerfield Private Design Fund IV, L.P. 10% 10,622,957 0 10,622,957 /s/ Jonathan Isler Jonathan Isler, Attorney-in-Fact 0001680307
Deerfield Partners, L.P. 6% 6,207,982 0 6,207,982 /s/ Jonathan Isler Jonathan Isler, Attorney-in-Fact 0001301041
Deerfield Mgmt III, L.P. 10% 10,622,928 0 10,622,928 /s/ Jonathan Isler Jonathan Isler, Attorney-in-Fact 0001610540
Deerfield Mgmt HIF, L.P. 7.9% 8,153,107 0 8,153,107 /s/ Jonathan Isler Jonathan Isler, Attorney-in-Fact 0001665736
Deerfield Mgmt IV, L.P. 10% 10,622,957 0 10,622,957 /s/ Jonathan Isler Jonathan Isler, Attorney-in-Fact 0001713467
Deerfield Mgmt, L.P. 6% 6,207,982 0 6,207,982 /s/ Jonathan Isler Jonathan Isler, Attorney-in-Fact 0001010823
Deerfield Management Company, L.P. 34% 35,667,474 0 35,667,474 /s/ Jonathan Isler Jonathan Isler, Attorney-in-Fact 0001009258
James E. Flynn 34% 35,667,474 0 35,667,474 /s/ Jonathan Isler Jonathan Isler, Attorney-in-Fact 0001352546

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