SEC FORM 4

SEC FORM 4 SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Berner Laura

(Last)

(First)

(Middle)

C/O BOLT BIOTHERAPEUTICS, INC.

900 CHESAPEAKE DRIVE

(Street)

REDWOOD CITY

94063

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
Bolt Biotherapeutics, Inc. [ BOLT ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
12/12/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Director Stock Option (Right to Buy)	$5.44	12/12/2025		A		2,500		⁽¹⁾	12/13/2032	Common Stock	2,500	⁽²⁾	2,500	D
Director Stock Option (Right to Buy)	$27.2	12/12/2025		D			2,500	⁽¹⁾	12/13/2032	Common Stock	2,500	⁽²⁾	0	D
Director Stock Option (Right to Buy)	$5.44	12/12/2025		A		613		⁽³⁾	12/13/2032	Common Stock	613	⁽²⁾	613	D
Director Stock Option (Right to Buy)	$27.2	12/12/2025		D			613	⁽³⁾	12/13/2032	Common Stock	613	⁽²⁾	0	D
Director Stock Option (Right to Buy)	$5.44	12/12/2025		A		1,250		⁽³⁾	06/11/2033	Common Stock	1,250	⁽⁴⁾	1,250	D
Director Stock Option (Right to Buy)	$32.6	12/12/2025		D			1,250	⁽³⁾	06/11/2033	Common Stock	1,250	⁽⁴⁾	0	D
Director Stock Option (Right to Buy)	$5.44	12/12/2025		A		1,100		⁽³⁾	06/11/2034	Common Stock	1,100	⁽⁵⁾	1,100	D
Director Stock Option (Right to Buy)	$15.364	12/12/2025		D			1,100	⁽³⁾	06/11/2034	Common Stock	1,100	⁽⁵⁾	0	D
Director Stock Option (Right to Buy)	$5.44	12/12/2025		A		1,100		⁽⁶⁾	05/26/2035	Common Stock	1,100	⁽⁷⁾	1,100	D
Director Stock Option (Right to Buy)	$6.4	12/12/2025		D			1,100	⁽⁶⁾	05/26/2035	Common Stock	1,100	⁽⁷⁾	0	D

Explanation of Responses:

1. The shares subject to this option shall vest in equal monthly installments, at a rate of 1/36th of the total number of shares on each monthly anniversary of December 14, 2022 (the "Vesting Commencement Date") for so long as the Reporting Person provides continuous service to the Issuer, such that the total number of shares shall be fully vested on the three-year anniversary of the Vesting Commencement Date; provided, however that the option will vest in full upon a change in control of the Issuer.

2. The reporting person agreed to cancellation of an option granted on December 14, 2022, in exchange for a new option having a lower exercise price.

3. The option is fully vested and exercisable.

4. The reporting person agreed to cancellation of an option granted on June 12, 2023, in exchange for a new option having a lower exercise price.

5. The reporting person agreed to cancellation of an option granted on June 12, 2024, in exchange for a new option having a lower exercise price.

6. The shares subject to the option will vest on the earlier of May 27, 2026 or the day immediately prior to the next annual meeting of stockholders, subject to the Reporting Person's continuous service through such date; provided, however that the option will vest in full upon a change in control of the Issuer.

7. The reporting person agreed to cancellation of an option granted on May 27, 2025, in exchange for a new option having a lower exercise price.

	/s/ William P. Quinn, Attorney-in-Fact	12/16/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

SEC Form 4 filed by Director Berner Laura