Esther Cho - 05 Jan 2026 Form 4 Insider Report for Keros Therapeutics, Inc. (KROS)

Role
Chief Legal Officer
Signature
/s/ Esther Cho
Issuer symbol
KROS
Transactions as of
05 Jan 2026
Net transactions value
$0
Form type
4
Filing time
26 Feb 2026, 16:15:20 UTC
Previous filing
15 Aug 2025
Next filing
20 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Cho Esther Chief Legal Officer C/O KEROS THERAPEUTICS, INC., 1050 WALTHAM STREET, SUITE 302, LEXINGTON /s/ Esther Cho 26 Feb 2026 0002081460

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction KROS Employee Stock Option (Right to Buy) Award $0 +80,000 $0.000000 80,000 24 Feb 2026 Common Stock 80,000 $15.52 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 One-fourth (1/4th) of the shares subject to the option shall vest on February 24, 2027, and the remaining shares subject to the option shall vest in twelve substantially equal quarterly installments thereafter, subject to the Reporting Person continuing to provide service through each such date.