William P. Quinn - 24 Oct 2025 Form 4 Insider Report for Bolt Biotherapeutics, Inc. (BOLT)

Role: President, CEO and CFO, Director
Signature: /s/ William P. Quinn
Issuer symbol: BOLT
Transactions as of: 24 Oct 2025
Transactions value $: $687
Form type: 4
Filing time: 24 Oct 2025, 19:18:29 UTC
Previous filing: 05 May 2025
Next filing: 16 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Quinn William P.	President, CEO and CFO, Director	C/O BOLT BIOTHERAPEUTICS, INC., 900 CHESAPEAKE DRIVE, REDWOOD CITY	/s/ William P. Quinn	24 Oct 2025	0001724190

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	BOLT	Common Stock	Purchase	$687	+125	+6.06%	$5.49	2.19K	06 Jun 2025	Direct	F1
transaction	BOLT	Common Stock	Award	$0	+40K	+1828.15%	$0.00	42.2K	22 Oct 2025	Direct	F2, F3

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

Explanation of Responses:

Id	Content
F1	Shares acquired under the issuer's Employee Stock Purchase Plan and therefore exempt under Rule 16b-3(c)
F2	The shares represent restricted stock units that were received as an award, for no consideration. Each restricted stock unit represents the right to receive, at settlement, one share of common stock.
F3	The restricted stock units subject to the award will vest in full on September 15, 2026, assuming continued employment through such date.