Fairmount Funds Management LLC - Oct 15, 2025 SCHEDULE 13D/A Report for SPYRE THERAPEUTICS, INC. Common Stock, $0.0001 par value (SYRE)

Filing Manager
Fairmount Funds Management LLC
Reporting Manager
Peter Evan Harwin
Security
SPYRE THERAPEUTICS, INC. Common Stock, $0.0001 par value
Symbol
SYRE
Shares outstanding
81.1M shares
Disclosed Ownership
8.11M shares
Ownership
9.99%
Form type
SCHEDULE 13D/A
Date filed
10/17/2025, 05:00 PM
Date of event
Oct 15, 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 8.99% 7.27M 0 7.27M /s/ Peter Harwin Peter Harwin, Managing Member 0001802528
Fairmount Healthcare Fund II L.P. 8.99% 7.27M 0 7.27M /s/ Peter Harwin Peter Harwin, Managing Member 0001769651
Peter Evan Harwin 9.99% 8.11M 508K 7.6M /s/ Peter Harwin Peter Harwin 0001663607
Tomas Kiselak 9.99% 8.11M 508K 7.6M /s/ Tomas Kiselak Tomas Kiselak 0001830177