Fairmount Funds Management LLC - 22 Jan 2026 SCHEDULE 13D/A Report for Apogee Therapeutics, Inc. Common Stock, $0.00001 par value (APGE)

Filing Manager
Fairmount Funds Management LLC
Reporting Manager
Peter Evan Harwin
Security
Apogee Therapeutics, Inc. Common Stock, $0.00001 par value
Symbol
APGE
Shares outstanding
60,530,801 shares
Disclosed Ownership
6,047,027 shares
Ownership
10%
Form type
SCHEDULE 13D/A
Filing time
22 Jan 2026, 20:00:19 UTC
Date of event
22 Jan 2026
Previous filing
14 Oct 2025
SEC
View on sec.gov

Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Fairmount Funds Management LLC 9.8% 5,948,385 0 5,948,385 /s/ Peter Harwin Peter Harwin, Managing Member 0001802528
Fairmount Healthcare Fund II L.P. 9.8% 5,948,385 0 5,948,385 /s/ Peter Harwin Peter Harwin, Managing Member 0001769651
Peter Evan Harwin 10% 6,047,027 93,374 5,953,653 /s/ Peter Harwin Peter Harwin 0001663607
Tomas Kiselak 10% 6,047,027 93,374 5,953,653 /s/ Tomas Kiselak Tomas Kiselak 0001830177