BOLTHealthcareNano-Cap
Bolt Biotherapeutics, Inc. Insider Trading Activity
Every SEC Form 4 insider transaction reported for Bolt Biotherapeutics, Inc. (BOLT), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud Research Team · SEC Form 4 & insider trading data analysts
Last updated:
Quick Answer
Are BOLT insiders buying or selling?
Bolt Biotherapeutics, Inc. insiders reported 18 open-market buys ($37.2M) and 7 sells ($1.9M) across 25 Form 4 filings — a net buying position of $35.3M.
Source: SEC EDGAR Form 4
Key Statistics (as of Feb 4, 2026)
Total Form 4 filings
25
SEC EDGAR
Insider filers
12
Insider buys (18)
$37.2M
Insider sells (7)
$1.9M
Insider sentiment
Net buyingNet insider flow of $35.3M in net buying.
Recent BOLT insider transactions
| Date | Insider | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Feb 4, 2026 | William P. Quinn | President, CEO and CFO | Purchase | 125 | $4.61 | $575.88 |
| Feb 4, 2026 | Sarah Nemec | Senior VP, Finance and PAO | Purchase | 125 | $4.61 | $575.88 |
| Oct 24, 2025 | Sarah Nemec | Senior VP, Finance and PAO | Purchase | 125 | $5.49 | $686.5 |
| Oct 24, 2025 | William P. Quinn | President, CEO and CFO | Purchase | 125 | $5.49 | $686.5 |
| May 6, 2025 | Sarah Nemec | Senior VP, Finance and PAO | Purchase | 5.0K | $0.57 | $2.8K |
| May 6, 2025 | William P. Quinn | President, CEO and CFO | Purchase | 5.0K | $0.57 | $2.8K |
| Dec 13, 2023 | William P. Quinn | Chief Financial Officer | Purchase | 11.8K | $0.95 | $11.2K |
| Dec 1, 2023 | Edgar Engleman | Director | Sale | 148.9K | $0.87 | $129.0K |
| Nov 23, 2023 | Edgar Engleman | Director | Sale | 1.9K | $0.90 | $1.8K |
| Nov 22, 2023 | Vivo Capital VIII, LLC | 10% Owner | Sale | 3.4K | $0.90 | $3.1K |
| Nov 21, 2023 | Edgar Engleman | Director | Sale | 49.2K | $0.93 | $45.7K |
| Nov 21, 2023 | Vivo Capital VIII, LLC | 10% Owner | Sale | 86.1K | $0.93 | $79.9K |
| Jul 15, 2022 | Novo Holdings A/S | 10% Owner | Sale | 800.0K | $2.00 | $1.6M |
| Feb 2, 2022 | Edith A. Perez | Chief Medical Officer | Purchase | 1.3K | $12.93 | $17.2K |
| Dec 9, 2021 | William P. Quinn | Chief Financial Officer | Purchase | 6.3K | $7.04 | $44.1K |
| Feb 11, 2021 | Novo Holdings A/S | 10% Owner | Purchase | 400.0K | $20.00 | $8.0M |
| Feb 9, 2021 | Maha Katabi | 10% Owner | Purchase | 450.0K | $20.00 | $9.0M |
| Feb 9, 2021 | Vivo Capital VIII, LLC | 10% Owner | Purchase | 349.8K | $20.00 | $7.0M |
| Feb 9, 2021 | Kathleen Laporte | Director | Purchase | 1.2K | $20.00 | $24.0K |
| Feb 9, 2021 | Mahendra Shah | Director | Sale | 62 | $20.00 | $1.2K |
| Feb 9, 2021 | James Healy | Director | Purchase | 450.0K | $20.00 | $9.0M |
| Feb 9, 2021 | Ashish Siri Ram Khanna | Director | Purchase | 2.2K | $20.00 | $44.0K |
| Feb 9, 2021 | Edgar Engleman | Director, 10% Owner | Purchase | 199.8K | $20.00 | $4.0M |
| Feb 9, 2021 | William P. Quinn | Chief Financial Officer | Purchase | 1.2K | $20.00 | $24.0K |
| Feb 9, 2021 | Randall C Schatzman | Chief Executive Officer | Purchase | 1.5K | $20.00 | $30.0K |
Showing the 25 most recent of 25 Form 4 filings for Bolt Biotherapeutics, Inc..
Most active BOLT insiders
- William P. Quinn6 filings
- Edgar Engleman4 filings
- Sarah Nemec3 filings
- Vivo Capital VIII, LLC3 filings
- Novo Holdings A/S2 filings
Ask anything about BOLT insider activity
Use Trabud's AI agent to query Bolt Biotherapeutics, Inc.'s Form 4 history in plain English — "Show me BOLT CEO purchases this year" or compare it against any other ticker.
Open the AI agentBOLT insider trading FAQ
Are Bolt Biotherapeutics, Inc. insiders buying or selling?
Across 25 SEC Form 4 filings, Bolt Biotherapeutics, Inc. (BOLT) insiders reported 18 open-market purchases totaling $37.2M and 7 sales totaling $1.9M. That is a net buying position of $35.3M.
How many insiders trade BOLT stock?
12 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for Bolt Biotherapeutics, Inc.. The most recent filing was accepted on Feb 4, 2026.
Where does Trabud get BOLT insider trading data?
All BOLT insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.
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