D. E. Shaw & Co, L.P. - Oct 20, 2025 SCHEDULE 13G Report for Keros Therapeutics, Inc. Common Stock, $0.0001 par value per share (KROS)

Filing Manager
D. E. SHAW & CO, L.P.
Reporting Manager
D. E. Shaw & Co., L.P.
Security
Keros Therapeutics, Inc. Common Stock, $0.0001 par value per share
Symbol
KROS
Shares outstanding
30.3M shares
Disclosed Ownership
1.55M shares
Ownership
5.1%
Form type
SCHEDULE 13G
Date filed
10/27/2025, 04:05 PM
Date of event
Oct 20, 2025
SEC
View on sec.gov

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
D. E. Shaw & Co., L.P. 5.1% 1.55M 0 1.55M /s/ Daniel R. Marcus Daniel R. Marcus / Chief Compliance Officer
D. E. Shaw & Co., L.L.C. 5% 1.54M 0 1.54M /s/ Daniel R. Marcus Daniel R. Marcus / Authorized Signatory
David E. Shaw 5.1% 1.55M 0 1.55M /s/ Daniel R. Marcus Daniel R. Marcus / Attorney-in-Fact for David E. Shaw