RA CAPITAL MANAGEMENT, L.P. - Feb 10, 2025 Form SCHEDULE 13D Schedule Report for SIONNA THERAPEUTICS, INC. (SION)

Filing Manager
RA CAPITAL MANAGEMENT, L.P.
Reporting Manager
RA Capital Management, L.P.
Security
SIONNA THERAPEUTICS, INC. Common Stock, $0.001 par value per share
Symbol
SION
Shares outstanding
44.1M shares
Disclosed Ownership
10.4M shares
Ownership
23.7%
Form type
SCHEDULE 13D
Date filed
2/18/2025, 04:25 PM
Date of event
Feb 10, 2025
SEC
View on sec.gov

Reporting Managers (5)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
RA Capital Management, L.P. 23.7% 10.4M 0 10.4M /s/ Peter Kolchinsky By Peter Kolchinsky, Authorized Signatory 0001346824
Peter Kolchinsky 23.7% 10.4M 0 10.4M /s/ Peter Kolchinsky Peter Kolchinsky 0001384859
Rajeev Shah 23.7% 10.4M 0 10.4M /s/ Rajeev Shah Rajeev Shah 0001619841
RA Capital Healthcare Fund, L.P. 15.7% 6.92M 0 6.92M /s/ Peter Kolchinsky By RA Capital Healthcare Fund GP, LLC, its General Partner, By Peter Kolchinsky, Manager 0001315082
RA Capital Nexus Fund III, L.P. 5.3% 2.32M 0 2.32M /s/ Peter Kolchinsky By RA Capital Nexus Fund III GP, LLC, its General Partner, By Peter Kolchinsky, Manager 0001883840