Key facts
- This page summarizes Kathleen Laporte's Form 4 filing for Bolt Biotherapeutics, Inc. (BOLT).
- 14 reported transactions and 14 derivative rows are listed below.
- Accepted by SEC: 16 Dec 2025, 17:13.
Kathleen Laporte - 12 Dec 2025 Form 4 Insider Report for Bolt Biotherapeutics, Inc. (BOLT)
- Reporting relationship
- Director
- Issuer ticker
- BOLT
- Reported as of
- 12 Dec 2025
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 16 Dec 2025, 17:13:46 UTC
- Prior SEC filing
- 30 Oct 2025
- Next SEC filing
- 06 Jan 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ William P. Quinn, Attorney-in-Fact
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Kathleen Laporte filed Form 4 for Bolt Biotherapeutics, Inc. (BOLT) on 16 Dec 2025.
Change
- Previous filing in this sequence was filed on 30 Oct 2025.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001196201
Primary reporting owner
LAPORTE KATHLEEN
- Relationship
- Director
- Address
- C/O BOLT BIOTHERAPEUTICS, INC., 900 CHESAPEAKE DRIVE, REDWOOD CITY
- Signature
- /s/ William P. Quinn, Attorney-in-Fact
- Signature date
- 16 Dec 2025
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
BOLT
transaction
Derivative
Director Stock Option (Right to Buy)
Award
- Transaction value
- Shares
- +1,392
- Change %
- Price
- Shares after
- 1,392
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,392
- Exercise price
- $5.44
- Footnotes
- F1, F2
BOLT
transaction
Derivative
Director Stock Option (Right to Buy)
Disposed to Issuer
- Transaction value
- Shares
- -1,392
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,392
- Exercise price
- $88.20
- Footnotes
- F1, F2
BOLT
transaction
Derivative
Director Stock Option (Right to Buy)
Award
- Transaction value
- Shares
- +1,250
- Change %
- Price
- Shares after
- 1,250
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,250
- Exercise price
- $5.44
- Footnotes
- F1, F3
BOLT
transaction
Derivative
Director Stock Option (Right to Buy)
Disposed to Issuer
- Transaction value
- Shares
- -1,250
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,250
- Exercise price
- $60.60
- Footnotes
- F1, F3
BOLT
transaction
Derivative
Director Stock Option (Right to Buy)
Award
- Transaction value
- Shares
- +1,250
- Change %
- Price
- Shares after
- 1,250
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,250
- Exercise price
- $5.44
- Footnotes
- F1, F4
BOLT
transaction
Derivative
Director Stock Option (Right to Buy)
Disposed to Issuer
- Transaction value
- Shares
- -1,250
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,250
- Exercise price
- $39.80
- Footnotes
- F1, F4
BOLT
transaction
Derivative
Director Stock Option (Right to Buy)
Award
- Transaction value
- Shares
- +1,250
- Change %
- Price
- Shares after
- 1,250
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,250
- Exercise price
- $5.44
- Footnotes
- F1, F5
BOLT
transaction
Derivative
Director Stock Option (Right to Buy)
Disposed to Issuer
- Transaction value
- Shares
- -1,250
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,250
- Exercise price
- $27.20
- Footnotes
- F1, F5
BOLT
transaction
Derivative
Director Stock Option (Right to Buy)
Award
- Transaction value
- Shares
- +1,250
- Change %
- Price
- Shares after
- 1,250
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,250
- Exercise price
- $5.44
- Footnotes
- F1, F6
BOLT
transaction
Derivative
Director Stock Option (Right to Buy)
Disposed to Issuer
- Transaction value
- Shares
- -1,250
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,250
- Exercise price
- $32.60
- Footnotes
- F1, F6
BOLT
transaction
Derivative
Director Stock Option (Right to Buy)
Award
- Transaction value
- Shares
- +1,100
- Change %
- Price
- Shares after
- 1,100
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,100
- Exercise price
- $5.44
- Footnotes
- F1, F7
BOLT
transaction
Derivative
Director Stock Option (Right to Buy)
Disposed to Issuer
- Transaction value
- Shares
- -1,100
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,100
- Exercise price
- $15.36
- Footnotes
- F1, F7
BOLT
transaction
Derivative
Director Stock Option (Right to Buy)
Award
- Transaction value
- Shares
- +1,100
- Change %
- Price
- Shares after
- 1,100
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,100
- Exercise price
- $5.44
- Footnotes
- F8, F9
BOLT
transaction
Derivative
Director Stock Option (Right to Buy)
Disposed to Issuer
- Transaction value
- Shares
- -1,100
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,100
- Exercise price
- $6.40
- Footnotes
- F8, F9
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 9 footnotes
Footnote F1
The option is fully vested and exercisable.
Footnote F2
The reporting person agreed to cancellation of an option granted on December 29, 2020, in exchange for a new option having a lower exercise price.
Footnote F3
The reporting person agreed to cancellation of an option granted on March 24, 2022, in exchange for a new option having a lower exercise price.
Footnote F4
The reporting person agreed to cancellation of an option granted on June 10, 2022, in exchange for a new option having a lower exercise price.
Footnote F5
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.
Footnote F6
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.
Footnote F7
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.
Footnote F8
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.
Footnote F9
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.