Quinn William P. 4

4 · Bolt Biotherapeutics, Inc. · Filed Dec 16, 2025

Insider Transaction Report

Form 4

Period: 2025-12-12

Bolt Biotherapeutics, Inc.BOLT

Quinn William P.

DirectorPresident, CEO and CFO

Transactions

Award
Employee Stock Option (Right to Buy)
2025-12-12+7,614→ 7,614 total
Exercise: $5.44Exp: 2030-07-28→ Common Stock (7,614 underlying)
Disposition to Issuer
Employee Stock Option (Right to Buy)
2025-12-12−7,614→ 0 total
Exercise: $56.00Exp: 2030-07-28→ Common Stock (7,614 underlying)
Award
Employee Stock Option (Right to Buy)
2025-12-12+3,927→ 3,927 total
Exercise: $5.44Exp: 2030-09-02→ Common Stock (3,927 underlying)
Disposition to Issuer
Employee Stock Option (Right to Buy)
2025-12-12−3,927→ 0 total
Exercise: $86.80Exp: 2030-09-02→ Common Stock (3,927 underlying)
Award
Employee Stock Option (Right to Buy)
2025-12-12+5,000→ 5,000 total
Exercise: $5.44Exp: 2031-02-03→ Common Stock (5,000 underlying)
Disposition to Issuer
Employee Stock Option (Right to Buy)
2025-12-12−5,000→ 0 total
Exercise: $400.00Exp: 2031-02-03→ Common Stock (5,000 underlying)
Award
Employee Stock Option (Right to Buy)
2025-12-12+10,499→ 10,499 total
Exercise: $5.44Exp: 2032-02-17→ Common Stock (10,499 underlying)
Disposition to Issuer
Employee Stock Option (Right to Buy)
2025-12-12−10,499→ 0 total
Exercise: $61.60Exp: 2032-02-17→ Common Stock (10,499 underlying)
Award
Employee Stock Option (Right to Buy)
2025-12-12+12,499→ 12,499 total
Exercise: $5.44Exp: 2033-02-26→ Common Stock (12,499 underlying)
Disposition to Issuer
Employee Stock Option (Right to Buy)
2025-12-12−12,499→ 0 total
Exercise: $31.80Exp: 2033-02-26→ Common Stock (12,499 underlying)
Award
Employee Stock Option (Right to Buy)
2025-12-12+11,749→ 11,749 total
Exercise: $5.44Exp: 2034-03-03→ Common Stock (11,749 underlying)
Disposition to Issuer
Employee Stock Option (Right to Buy)
2025-12-12−11,749→ 0 total
Exercise: $25.40Exp: 2034-03-03→ Common Stock (11,749 underlying)
Award
Employee Stock Option (Right to Buy)
2025-12-12+21,999→ 21,999 total
Exercise: $5.44Exp: 2034-07-22→ Common Stock (21,999 underlying)
Disposition to Issuer
Employee Stock Option (Right to Buy)
2025-12-12−21,999→ 0 total
Exercise: $14.60Exp: 2034-07-22→ Common Stock (21,999 underlying)
Award
Employee Stock Option (Right to Buy)
2025-12-12+34,999→ 34,999 total
Exercise: $5.44Exp: 2035-04-30→ Common Stock (34,999 underlying)
Disposition to Issuer
Employee Stock Option (Right to Buy)
2025-12-12−34,999→ 0 total
Exercise: $7.02Exp: 2035-04-30→ Common Stock (34,999 underlying)

Footnotes (13)

[F1]The option is fully vested and exercisable.
[F10]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.
[F11]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.
[F12]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.
[F13]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.
[F2]The reporting person agreed to cancellation of an option granted on July 29, 2020, in exchange for a new option having a lower price.
[F3]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.
[F4]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.
[F5]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.
[F6]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.
[F7]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.
[F8]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.
[F9]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.

Documents

1 file

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ownership.xmlPrimary
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