Grant Yonehiro - 28 Jan 2026 Form 4 Insider Report for Bolt Biotherapeutics, Inc. (BOLT)

Role: Chief Operating Officer
Signature: /s/ William P. Quinn, Attorney-in-Fact
Issuer symbol: BOLT
Transactions as of: 28 Jan 2026
Net transactions value: $0
Form type: 4
Filing time: 04 Feb 2026, 16:32:18 UTC
Previous filing: 16 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Yonehiro Grant	Chief Operating Officer	C/O BOLT BIOTHERAPEUTICS, INC., 900 CHESAPEAKE DRIVE, REDWOOD CITY	/s/ William P. Quinn, Attorney-in-Fact	04 Feb 2026	0001428666

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	BOLT	Employee Stock Option (Right to Buy)	Award	$0	+10,000		$0.000000	10,000	28 Jan 2026	Common Stock	10,000	$6.71	Direct	F1

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

Explanation of Responses:

Id	Content
F1	For so long as the Reporting Person continuously provides services to the Issuer this option will vest with respect to the shares as follows: 1/36th of the shares will vest upon the Reporting Person completing each month of continuous service following January 1, 2026.