Cindy Driscoll - 06 Jan 2026 Form 4 Insider Report for Climb Bio, Inc. (CLYM)

Role: Senior Vice President, Finance
Signature: /s/ Chandra Adams, as Attorney-in-Fact
Issuer symbol: CLYM
Transactions as of: 06 Jan 2026
Net transactions value: $0
Form type: 4
Filing time: 08 Jan 2026, 16:05:05 UTC
Previous filing: 20 Jun 2025
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	08 Jan 2026	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	+100,000		$0.000000	100,000	06 Jan 2026	Common Stock	100,000	$3.81	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 January 6, 2026 (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 January 6, 2030, subject to the Reporting Person's continued service.