FMR LLC - 30 Jun 2025 SCHEDULE 13G/A Report for DAY ONE BIOPHARMACEUTICALS INC COMMON STOCK (DAWN)

Filing Manager
FMR LLC
Reporting Manager
FMR LLC
Symbol
DAWN
Shares outstanding
101M shares
Disclosed Ownership
11.3M shares
Ownership
11.2%
Form type
SCHEDULE 13G/A
Filing time
06 Aug 2025, 11:56:23 UTC
Date of event
30 Jun 2025
Previous filing
12 Feb 2025
Next filing
05 Nov 2025

Reporting Managers (2)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
FMR LLC 11.2% 11.3M 11.3M 0 Richard Bourgelas Duly authorized under Power of Attorney effective as of May 23, 2023, by and on behalf of FMR LLC and its direct and indirect subsidiaries*
Abigail P. Johnson 11.2% 11.3M 0 0 Richard Bourgelas Duly authorized under Power of Attorney effective as of May 23, 2023, by and on behalf of Abigail P. Johnson*