William P. Quinn
CIK: 0001724190
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Bolt Biotherapeutics, Inc.
Discretionary Trading P&L
Holdings
Transaction History (27 total)
- Sep 18, 2026BOLT
Bolt Biotherapeutics, Inc.
Sale(S)Direct9.1K shares at avg. $3.24$30K - Sep 17, 2026BOLT
Bolt Biotherapeutics, Inc.
Sale(S)Direct6.5K shares at avg. $3.32$22K - Sep 16, 2026BOLT
Bolt Biotherapeutics, Inc.
Sale(S)Direct1.9K shares at avg. $3.77$7K - Jun 5, 2026BOLT
Bolt Biotherapeutics, Inc.
Purchase(P)Direct637 shares at avg. $3.88$2K - Jan 28, 2026BOLT
Bolt Biotherapeutics, Inc.
Award(A)DirectEmployee Stock Option (Right to Buy)
20K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
Award(A)DirectEmployee Stock Option (Right to Buy)
7.6K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
Disposition(D)DirectEmployee Stock Option (Right to Buy)
7.6K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
Award(A)DirectEmployee Stock Option (Right to Buy)
3.9K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
Disposition(D)DirectEmployee Stock Option (Right to Buy)
3.9K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
Award(A)DirectEmployee Stock Option (Right to Buy)
5K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
Disposition(D)DirectEmployee Stock Option (Right to Buy)
5K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
Award(A)DirectEmployee Stock Option (Right to Buy)
10.5K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
Disposition(D)DirectEmployee Stock Option (Right to Buy)
10.5K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
Award(A)DirectEmployee Stock Option (Right to Buy)
12.5K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
Disposition(D)DirectEmployee Stock Option (Right to Buy)
12.5K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
Disposition(D)DirectEmployee Stock Option (Right to Buy)
11.7K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
Award(A)DirectEmployee Stock Option (Right to Buy)
11.7K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
Disposition(D)DirectEmployee Stock Option (Right to Buy)
35K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
Award(A)DirectEmployee Stock Option (Right to Buy)
35K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
Disposition(D)DirectEmployee Stock Option (Right to Buy)
22K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
Award(A)DirectEmployee Stock Option (Right to Buy)
22K shares- - Dec 5, 2025BOLT
Bolt Biotherapeutics, Inc.
Purchase(P)Direct125 shares at avg. $4.61$575.875 - Oct 22, 2025BOLT
Bolt Biotherapeutics, Inc.
Award(A)Direct40K shares- - Jun 6, 2025BOLT
Bolt Biotherapeutics, Inc.
Purchase(P)Direct125 shares at avg. $5.49$686.5 - May 1, 2025BOLT
Bolt Biotherapeutics, Inc.
Award(A)DirectStock Option (Right to Buy)
700K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 18, 2026 | BOLT Bolt Biotherapeutics, Inc. | Sale(S) | 9,132 | $3.24 | $29,555 | Direct |
| Sep 17, 2026 | BOLT Bolt Biotherapeutics, Inc. | Sale(S) | 6,545 | $3.32 | $21,718 | Direct |
| Sep 16, 2026 | BOLT Bolt Biotherapeutics, Inc. | Sale(S) | 1,889 | $3.77 | $7,129 | Direct |
| Jun 5, 2026 | BOLT Bolt Biotherapeutics, Inc. | Purchase(P) | 637 | $3.88 | $2,469 | Direct |
| Jan 28, 2026 | BOLT Bolt Biotherapeutics, Inc. | Award(A) Employee Stock Option (Right to Buy) | 20,000 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Award(A) Employee Stock Option (Right to Buy) | 7,614 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Disposition(D) Employee Stock Option (Right to Buy) | 7,614 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Award(A) Employee Stock Option (Right to Buy) | 3,927 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Disposition(D) Employee Stock Option (Right to Buy) | 3,927 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Award(A) Employee Stock Option (Right to Buy) | 5,000 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Disposition(D) Employee Stock Option (Right to Buy) | 5,000 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Award(A) Employee Stock Option (Right to Buy) | 10,499 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Disposition(D) Employee Stock Option (Right to Buy) | 10,499 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Award(A) Employee Stock Option (Right to Buy) | 12,499 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Disposition(D) Employee Stock Option (Right to Buy) | 12,499 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Disposition(D) Employee Stock Option (Right to Buy) | 11,749 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Award(A) Employee Stock Option (Right to Buy) | 11,749 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Disposition(D) Employee Stock Option (Right to Buy) | 34,999 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Award(A) Employee Stock Option (Right to Buy) | 34,999 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Disposition(D) Employee Stock Option (Right to Buy) | 21,999 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Award(A) Employee Stock Option (Right to Buy) | 21,999 | - | - | Direct |
| Dec 5, 2025 | BOLT Bolt Biotherapeutics, Inc. | Purchase(P) | 125 | $4.61 | $576 | Direct |
| Oct 22, 2025 | BOLT Bolt Biotherapeutics, Inc. | Award(A) | 40,000 | - | - | Direct |
| Jun 6, 2025 | BOLT Bolt Biotherapeutics, Inc. | Purchase(P) | 125 | $5.49 | $687 | Direct |
| May 1, 2025 | BOLT Bolt Biotherapeutics, Inc. | Award(A) Stock Option (Right to Buy) | 700,000 | - | - | Direct |
1-25 of 27 transactions
About Quinn William P.
Quinn William P. (SEC CIK 0001724190) files insider reports with the SEC as President, CEO and CFO of Bolt Biotherapeutics, Inc. (BOLT).
Signal8 holds 5 ownership filings by Quinn William P., all Form 4s, filed between May 5, 2025 and Sep 21, 2026. Those filings report 27 transactions, from Jun 6, 2024 to Sep 18, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on Quinn William P.'s filings is in REDWOOD CITY, CA.
Recent filings by Quinn William P.
- Sep 18, 2026: Open-market sale of BOLT shares (Form 4, code S).
- Sep 17, 2026: Open-market sale of BOLT shares (Form 4, code S).
- Sep 16, 2026: Open-market sale of BOLT shares (Form 4, code S).
- Jun 5, 2026: Open-market purchase of BOLT shares (Form 4, code P).
- Jan 28, 2026: Grant or award of BOLT derivative securities (Form 4, code A).
Other insiders filing for Bolt Biotherapeutics, Inc. (BOLT)
- GUJRATHI SHEILA, Chief Strategy Officer
- Yonehiro Grant, Chief Operating Officer
- Nemec Sarah, Senior VP, Finance and PAO
- Berner Laura, Director
- LAPORTE KATHLEEN, Director
- Dupont Jakob, Director