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^*

Yonehiro Grant

(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)

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

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)
Employee Stock Option (Right to Buy)	$5.44	12/12/2025		A		3,214		⁽¹⁾	01/17/2027	Common Stock	3,214	⁽²⁾	3,214	D
Employee Stock Option (Right to Buy)	$42	12/12/2025		D			3,214	⁽¹⁾	01/17/2027	Common Stock	3,214	⁽²⁾	0	D
Employee Stock Option (Right to Buy)	$5.44	12/12/2025		A		660		⁽¹⁾	01/16/2028	Common Stock	660	⁽³⁾	660	D
Employee Stock Option (Right to Buy)	$40.6	12/12/2025		D			660	⁽¹⁾	01/17/2028	Common Stock	660	⁽³⁾	0	D
Employee Stock Option (Right to Buy)	$5.44	12/12/2025		A		822		⁽¹⁾	04/03/2028	Common Stock	822	⁽⁴⁾	822	D
Employee Stock Option (Right to Buy)	$40.6	12/12/2025		D			822	⁽¹⁾	04/03/2028	Common Stock	822	⁽⁴⁾	0	D
Employee Stock Option (Right to Buy)	$5.44	12/12/2025		A		1,653		⁽¹⁾	01/10/2029	Common Stock	1,653	⁽⁵⁾	1,653	D
Employee Stock Option (Right to Buy)	$44.8	12/12/2025		D			1,653	⁽¹⁾	01/10/2029	Common Stock	1,653	⁽⁵⁾	0	D
Employee Stock Option (Right to Buy)	$5.44	12/12/2025		A		4,642		⁽¹⁾	11/12/2029	Common Stock	4,642	⁽⁶⁾	4,642	D
Employee Stock Option (Right to Buy)	$54.6	12/12/2025		D			4,642	⁽¹⁾	11/12/2029	Common Stock	4,642	⁽⁶⁾	0	D
Employee Stock Option (Right to Buy)	$5.44	12/12/2025		A		2,142		⁽¹⁾	09/02/2030	Common Stock	2,142	⁽⁷⁾	2,142	D
Employee Stock Option (Right to Buy)	$86.8	12/12/2025		D			2,142	⁽¹⁾	09/02/2030	Common Stock	2,142	⁽⁷⁾	0	D
Employee Stock Option (Right to Buy)	$5.44	12/12/2025		A		4,999		⁽¹⁾	02/03/2031	Common Stock	4,999	⁽⁸⁾	4,999	D
Employee Stock Option (Right to Buy)	$400	12/12/2025		D			4,999	⁽¹⁾	02/03/2031	Common Stock	4,999	⁽⁸⁾	0	D
Employee Stock Option (Right to Buy)	$5.44	12/12/2025		A		9,499		⁽¹⁾	02/17/2032	Common Stock	9,499	⁽⁹⁾	9,499	D
Employee Stock Option (Right to Buy)	$61.6	12/12/2025		D			9,499	⁽¹⁾	02/17/2032	Common Stock	9,499	⁽⁹⁾	0	D
Employee Stock Option (Right to Buy)	$5.44	12/12/2025		A		11,399		⁽¹⁰⁾	02/26/2033	Common Stock	11,399	⁽¹¹⁾	11,399	D
Employee Stock Option (Right to Buy)	$31.8	12/12/2025		D			11,399	⁽¹⁰⁾	02/26/2033	Common Stock	11,399	⁽¹¹⁾	0	D
Employee Stock Option (Right to Buy)	$5.44	12/12/2025		A		11,749		⁽¹²⁾	03/03/2034	Common Stock	11,749	⁽¹³⁾	11,749	D
Employee Stock Option (Right to Buy)	$25.4	12/12/2025		D			11,749	⁽¹²⁾	03/03/2034	Common Stock	11,749	⁽¹³⁾	0	D
Employee Stock Option (Right to Buy)	$5.44	12/12/2025		A		7,749		⁽¹⁴⁾	07/22/2034	Common Stock	7,749	⁽¹⁵⁾	7,749	D
Employee Stock Option (Right to Buy)	$14.602	12/12/2025		D			7,749	⁽¹⁴⁾	07/22/2034	Common Stock	7,749	⁽¹⁵⁾	0	D
Employee Stock Option (Right to Buy)	$5.44	12/12/2025		A		17,499		⁽¹⁶⁾	04/30/2035	Common Stock	17,499	⁽¹⁷⁾	17,499	D
Employee Stock Option (Right to Buy)	$7.02	12/12/2025		D			17,499	⁽¹⁶⁾	04/30/2035	Common Stock	17,499	⁽¹⁷⁾	0	D

Explanation of Responses:

1. The option is fully vested and exercisable.

2. The reporting person agreed to cancellation of an option granted on January 18, 2017, in exchange for a new option having a lower price.

3. The reporting person agree to cancellation of an option granted on January 17, 2018, in exchange for a new option having a lower exercise price.

4. The reporting person agreed to cancellation of an option granted on April 4, 2018, in exchange for a new option having a lower exercise price.

5. The reporting person agreed to cancellation of an option granted on January 11, 2019, in exchange for a new option having a lower exercise price.

6. The reporting person agreed to cancellation of an option granted on November 13, 2019, in exchange for a new option having a lower exercise price.

7. The reporting person agreed to cancellation of an option granted on September 3, 2020, in exchange for a new option having a lower exercise price.

8. The reporting person agreed to cancellation of an option granted on February 4, 2021, in exchange for a new option having a lower exercise price.

9. The reporting person agreed to cancellation of an option granted on February 18, 2022, in exchange for a new option having a lower exercise price.

10. 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, 2023.

11. The reporting person agreed to cancellation of an option granted on February 27, 2023, in exchange for a new option having a lower exercise price.

12. 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, 2024.

13. The reporting person agreed to cancellation of an option granted on March 4, 2024, in exchange for a new option having a lower exercise price.

14. 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 July 15, 2024.

15. The reporting person agreed to cancellation of an option granted on July 23, 2024, in exchange for a new option having a lower exercise price.

16. 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, 2025.

17. The reporting person agreed to cancellation of an option granted on May 1, 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 Chief Operating Officer Yonehiro Grant