Cindy Driscoll - Jun 17, 2025 Form 4 Insider Report for Climb Bio, Inc. (CLYM)

Role: Senior Vice President, Finance
Signature: /s/ Chandra Adams, as Attorney-in-Fact
Stock symbol: CLYM
Transactions as of: Jun 17, 2025
Transactions value $: $0
Form type: 4
Date filed: 6/20/2025, 04:20 PM
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Driscoll Cindy	Senior Vice President, Finance	C/O CLIMB BIO, INC., 20 WILLIAM STREET, SUITE 145, WELLESLEY HILLS	/s/ Chandra Adams, as Attorney-in-Fact	2025-06-20	0001741269

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	CLYM	Stock Option (Right to Buy)	Award	$0	+200K		$0.00	200K	Jun 17, 2025	Common Stock	200K	$1.20	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	This option was granted on June 17, 2025 (the "Grant Date"). The shares underlying the option are scheduled to vest with respect to 25% of the shares on the first anniversary of the Grant Date and the remainder are scheduled to vest in 36 equal monthly installments through June 17, 2029, subject to the Reporting Person's continued service.