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
55.8M shares
Disclosed Ownership
11.2M 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

Reporting Managers (5)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Fairmount Funds Management LLC 19.99% 11.2M 0 11.2M /s/ Peter Harwin Peter Harwin, Managing Member 0001802528
Fairmount Healthcare Fund II L.P. 15.38% 8.59M 0 8.59M /s/ Peter Harwin Peter Harwin, Managing Member 0001769651
Fairmount Healthcare Co-Invest III L.P. 5.32% 2.57M 0 2.57M /s/ Peter Harwin Peter Harwin, Managing Member 0002009690
Peter Evan Harwin 19.99% 11.2M 0 11.2M /s/ Peter Harwin Peter Harwin 0001663607
Tomas Kiselak 19.99% 11.2M 0 11.2M /s/ Tomas Kiselak Tomas Kiselak 0001830177