BOLT insider trading — Bolt Biotherapeutics, Inc.
Over the last 90 days, insiders at Bolt Biotherapeutics, Inc. (BOLT) made 2 open-market purchases worth $4K and 9 open-market sales worth $128K, making them net sellers by $124K. The largest purchase was by Quinn William P. (President, CEO and CFO), who bought 637 shares for $2K on Jun 5, 2026. The largest sale was by Quinn William P. (President, CEO and CFO), who sold 9,132 shares for $30K on Sep 18, 2026. 2 different insiders bought shares in this period — a cluster buy, which many investors watch closely.
Updated Oct 16, 2026.
Recent BOLT insider transactions
Every Form 4 filed by Bolt Biotherapeutics, Inc. officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 18, 2026 | Yonehiro Grant | Chief Operating Officer | S · Sale | Direct | 6,850 | $3.24 | $22K | Form 4 |
| Sep 17, 2026 | Yonehiro Grant | Chief Operating Officer | S · Sale | Direct | 4,909 | $3.32 | $16K | Form 4 |
| Sep 16, 2026 | Yonehiro Grant | Chief Operating Officer | S · Sale | Direct | 1,417 | $3.77 | $5K | Form 4 |
| Sep 18, 2026 | Nemec Sarah | Senior VP, Finance and PAO | S · Sale | Direct | 4,077 | $3.24 | $13K | Form 4 |
| Sep 17, 2026 | Nemec Sarah | Senior VP, Finance and PAO | S · Sale | Direct | 2,922 | $3.32 | $10K | Form 4 |
| Sep 16, 2026 | Nemec Sarah | Senior VP, Finance and PAO | S · Sale | Direct | 843 | $3.77 | $3K | Form 4 |
| Jun 5, 2026 | Nemec Sarah | Senior VP, Finance and PAO | P · Purchase | Direct | 509 | $3.88 | $2K | Form 4 |
| Sep 18, 2026 | Quinn William P. | President, CEO and CFO | S · Sale | Direct | 9,132 | $3.24 | $30K | Form 4 |
| Sep 17, 2026 | Quinn William P. | President, CEO and CFO | S · Sale | Direct | 6,545 | $3.32 | $22K | Form 4 |
| Sep 16, 2026 | Quinn William P. | President, CEO and CFO | S · Sale | Direct | 1,889 | $3.77 | $7K | Form 4 |
| Jun 5, 2026 | Quinn William P. | President, CEO and CFO | P · Purchase | Direct | 637 | $3.88 | $2K | Form 4 |
BOLT insider trading FAQ
Are insiders buying BOLT stock?
Yes. In the last 90 days, Bolt Biotherapeutics, Inc. insiders made 2 open-market purchases totaling $4K, and 9 open-market sales totaling $128K. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading BOLT?
Recent buyers: Nemec Sarah, Quinn William P.. Recent sellers: Nemec Sarah, Quinn William P., Yonehiro Grant.
Where does BOLT insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.