Ra Capital Management, L.P. - Dec 31, 2024 SCHEDULE 13G/A Report for DAY ONE BIOPHARMACEUTICALS, INC. Common Stock, par value $0.0001 per share (DAWN)

Filing Manager
RA CAPITAL MANAGEMENT, L.P.
Reporting Manager
RA Capital Management, L.P.
Security
DAY ONE BIOPHARMACEUTICALS, INC. Common Stock, par value $0.0001 per share
Symbol
DAWN
Shares outstanding
101M shares
Disclosed Ownership
5.76M shares
Ownership
5.7%
Form type
SCHEDULE 13G/A
Date filed
2/14/2025, 06:31 PM
Date of event
Dec 31, 2024
Next filing
Aug 14, 2025
SEC
View on sec.gov

Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
RA Capital Management, L.P. 5.7% 5.76M 0 5.76M /s/ Peter Kolchinsky By Peter Kolchinsky, Authorized Signatory
Peter Kolchinsky 5.7% 5.76M 0 5.76M /s/ Peter Kolchinsky Peter Kolchinsky
Rajeev Shah 5.7% 5.76M 0 5.76M /s/ Rajeev Shah Rajeev Shah
RA Capital Healthcare Fund, L.P. 5.3% 5.31M 0 5.31M /s/ Peter Kolchinsky By RA Capital Healthcare Fund GP, LLC, its General Partner, By Peter Kolchinsky, Manager