Company: KROS
Filing Date: 2025-04-23
Form Type: DEF 14A
Source: 0001104659-25-037982
Chunk: 70

Company: Keros Therapeutics, Inc.
Filing Date: 2025-04-23
Form: DEF 14A
Chunk 70
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 2025 and 6.25% of the shares subject to the 48

TABLE OF CONTENTS

option vest at the end of each successive three (3) month period following the first anniversary of the vesting commencement date until the fourth anniversary of the vesting commencement date, subject to continued service through each such applicable vesting date. Options may be exercised when vested following the grant date. The options are eligible to accelerate under certain circumstances. (4) Annual performance-vesting options awarded under the 2020 Plan. The option award is eligible to vest contingent upon the achievement of two rigorous development goals, as further described under “Compensation Discussion and Analysis — Elements of Our 2024 Executive Compensation Program — Equity Compensation” in this Proxy Statement. Options may be exercised when vested following the grant date. The options are eligible to accelerate under certain circumstances. (5) Initial options awarded under the 2020 Plan. The option award vests as follows: 25% of the shares subject to the option vest on November 8, 2025 and 6.25% of the shares subject to the option vest at the end of each successive three (3) month period following the first anniversary of the vesting commencement date until the fourth anniversary of the vesting commencement date, subject to continued service through each such applicable vesting date. Options may be exercised when vested following the grant date. The options are eligible to accelerate under certain circumstances. Outstanding Equity Awards as of December 31, 2024 The following table sets forth certain information about equity awards granted to our NEOs that remained outstanding as of December 31, 2024.

| ​                    | ​ | ​ | Option Awards(1) |   |           |   |   |   |                         |   |               |   |   |   |                                                                |   |         |   |   |   |                                                                  |   |         |   |   |   |                                                                                         |   |         |   |   |   |                                  |   |       |   |   |   |                      |   |           |   | ​ |
| Name                 | ​ | ​ | Grant Date       |   |           |   | ​ | ​ | VestingCommencementDate |   |               |   | ​ | ​ | Number ofSecuritiesUnderlyingUnexercisedOptions (#)Exercisable |   |         |   | ​ | ​ | Number ofSecuritiesUnderlyingUnexercisedOptions (#)Unexercisable