Fairmount Funds Management LLC - 17 Sep 2025 SCHEDULE 13D/A Report for ORUKA THERAPEUTICS, INC. Common Stock, $0.001 par value (ORKA)

Filing Manager
Fairmount Funds Management LLC
Reporting Manager
Fairmount Funds Management LLC
Security
ORUKA THERAPEUTICS, INC. Common Stock, $0.001 par value
Symbol
ORKA
Shares outstanding
55,841,626 shares
Disclosed Ownership
11,162,741 shares
Ownership
20%
Form type
SCHEDULE 13D/A
Filing time
19 Sep 2025, 18:56:13 UTC
Date of event
17 Sep 2025
Previous filing
10 Mar 2025
SEC
View on sec.gov

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Quoteable Key Fact

"Fairmount Funds Management LLC disclosed 20% ownership in ORUKA THERAPEUTICS, INC. Common Stock, $0.001 par value (ORKA) on 17 Sep 2025."

Quick Takeaways

  • Fairmount Funds Management LLC filed SCHEDULE 13D/A for ORUKA THERAPEUTICS, INC. Common Stock, $0.001 par value (ORKA).
  • Disclosed ownership: 20%.
  • Date of event: 17 Sep 2025.

What Changed

  • Previous schedule filing date: 10 Mar 2025.
  • Current filing was accepted on 19 Sep 2025, 18:56.

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 (5)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Fairmount Funds Management LLC 20% 11,162,741 0 11,162,741 /s/ Peter Harwin Peter Harwin, Managing Member 0001802528
Fairmount Healthcare Fund II L.P. 15% 8,589,433 0 8,589,433 /s/ Peter Harwin Peter Harwin, Managing Member 0001769651
Fairmount Healthcare Co-Invest III L.P. 5.3% 2,573,308 0 2,573,308 /s/ Peter Harwin Peter Harwin, Managing Member 0002009690
Peter Evan Harwin 20% 11,162,741 0 11,162,741 /s/ Peter Harwin Peter Harwin 0001663607
Tomas Kiselak 20% 11,162,741 0 11,162,741 /s/ Tomas Kiselak Tomas Kiselak 0001830177

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