Rock Springs Capital Management LP - Mar 31, 2025 SCHEDULE 13G/A Report for Aclaris Therapeutics, Inc. Common Stock, $0.00001 par value (ACRS)

Filing Manager
Rock Springs Capital Management LP
Reporting Manager
Rock Springs Capital Management LP
Security
Aclaris Therapeutics, Inc. Common Stock, $0.00001 par value
Symbol
ACRS
Shares outstanding
107M shares
Disclosed Ownership
5.05M shares
Ownership
4.7%
Form type
SCHEDULE 13G/A
Date filed
5/15/2025, 10:45 AM
Date of event
Mar 31, 2025
SEC
View on sec.gov

Reporting Managers (5)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Rock Springs Capital Management LP 4.7% 5.05M 0 5.05M /s/ Mark Bussard Mark Bussard - Member
Rock Springs Capital LLC 4.7% 5.05M 0 5.05M /s/ Mark Bussard Mark Bussard - Member
Rock Springs Capital Master Fund LP 0% 0 0 0 /s/ Mark Bussard Mark Bussard - Member
Mark Bussard 4.7% 5.05M 0 5.05M /s/ Mark Bussard Mark Bussard
Kris Jenner 4.7% 5.05M 0 5.05M /s/ Kris Jenner Kris Jenner