BOLT insider buying – Bolt Biotherapeutics, Inc.
11 insider purchases since 2016 worth $28.5M by 9 different insiders. Last 12 months: 1 purchases, $319,000. Most recent filing: 2026-11-10.
Small company Public float $7M (latest 10-K, SEC). Share prices of small companies usually swing much more than those of large ones, in both directions, and are easier to move with little trading.
Same time range as the chart above - each mark sits under the week of the trade. Circles = purchases (height = price paid, size = amount), red triangles = open-market sales of $50k+. Prices as reported, not adjusted for later stock splits. 7 older purchases (before the 5-year window) are listed in the table below.
Purchases are open-market buys (SEC Form 4, code "P") - insiders paying with their own money. Sales are open-market sales (code "S") of $50,000 or more; many sales are pre-planned (Rule 10b5-1) or made for taxes and diversification. Each row links to the original filing.
Bought, sold, still holding?
| Insider | Bought | First / last buy | Sold since 2016 | Holds now* | Status |
|---|---|---|---|---|---|
| Sofinnova Management X, L.L.C. 10% Owner | $9.0M 1× · 450,000 sh | 2021-02-09 2021-02-09 | – | 2,304,437 shares as of 2021-02-09 | Holds - never sold |
| Novo Holdings A/S 10% Owner | $8.0M 1× · 400,000 sh | 2021-02-09 2021-02-09 | 1× · $1.6M last 2022-07-13 | 3,703,991 shares as of 2022-07-15 | Sold part |
| Vivo Panda Fund, L.P. 10% Owner | $7.0M 1× · 350,000 sh | 2021-02-09 2021-02-09 | – | 3,574,037 shares as of 2021-02-09 | Holds - never sold |
| ENGLEMAN EDGAR Director | $4.0M 1× · 200,000 sh | 2021-02-09 2021-02-09 | 1× · $129,330 last 2023-11-29 | 2,087,939 shares as of 2023-12-01 | Sold part |
| Coastlands Capital LP 10% Owner | $319,000 1× · 50,000 sh | 2026-11-09 2026-11-09 | – | – | Holds - never sold |
| Quinn William P. CFO | $79,325 3× · 19,285 sh | 2021-02-09 2023-06-06 | 1× · $58,439 last 2026-09-16 | 25,384 shares as of 2026-09-21 | Sold part |
| Khanna Ashish Siri Ram Director | $44,000 1× · 2,200 sh | 2021-02-09 2021-02-09 | – | 2,200 shares as of 2021-02-09 | Holds - never sold |
| Schatzman Randall C CEO | $30,000 1× · 1,500 sh | 2021-02-09 2021-02-09 | – | 1,500 shares as of 2021-02-09 | Holds - never sold |
| Perez Edith A. Officer | $17,175 1× · 1,328 sh | 2021-06-04 2021-06-04 | – | 37,042 shares as of 2022-02-01 | Holds - never sold |
* Shares held after the insider's most recent SEC filing for this company (all share classes, direct and indirect). If an insider stops filing, later changes are not known.
Insider buying and selling by year
| Year | Purchases | Bought | Buyers | Sales | Sold |
|---|---|---|---|---|---|
| 2026 | 1 | $319,000 | 1 | 1 | $58,439 |
| 2023 | 1 | $11,233 | 1 | 2 | $209,263 |
| 2022 | 1 | $17,175 | 1 | 1 | $1.6M |
| 2021 | 8 | $28.1M | 7 | – | – |
Insider purchases
| Filed | Insider | Role | Shares | Avg price | Value | Holdings | Filing |
|---|---|---|---|---|---|---|---|
| 2026-11-10 | Coastlands Capital LP | 10% Owner | 50,000 | $6.38 | $319,000 | +12% | SEC |
| 2023-12-13 | Quinn William P. | CFO | 11,829 | $0.95 | $11,233 | +48.4% | SEC |
| 2022-02-01 | Perez Edith A. | Officer | 1,328 | $12.93 | $17,175 | SEC | |
| 2021-12-09 | Quinn William P. | CFO | 6,256 | $7.05 | $44,092 | +45.0% | SEC |
| 2021-02-11 | Novo Holdings A/S | 10% Owner | 400,000 | $20.00 | $8.0M | +9.7% | SEC |
| 2021-02-09 | Vivo Panda Fund, L.P. | 10% Owner | 350,000 | $20.00 | $7.0M | +21.2% | SEC |
| 2021-02-09 | Sofinnova Management X, L.L.C. | 10% Owner | 450,000 | $20.00 | $9.0M | +19.5% | SEC |
| 2021-02-09 | Schatzman Randall C | CEO | 1,500 | $20.00 | $30,000 | SEC | |
| 2021-02-09 | Quinn William P. | CFO | 1,200 | $20.00 | $24,000 | +9.5% | SEC |
| 2021-02-09 | Khanna Ashish Siri Ram | Director | 2,200 | $20.00 | $44,000 | SEC | |
| 2021-02-09 | ENGLEMAN EDGAR | Director | 200,000 | $20.00 | $4.0M | +11.1% | SEC |
Insider sales
| Filed | Insider | Role | Shares | Avg price | Value | Type | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-21 | Quinn William P. | CEO | 17,566 | $3.33 | $58,439 | Sale | SEC |
| 2023-12-01 | ENGLEMAN EDGAR | Director | 148,884 | $0.87 | $129,330 | Sale | SEC |
| 2023-11-20 | Vivo Capital Surplus Fund VIII, L.P. | 10% Owner | 86,054 | $0.93 | $79,933 | Sale | SEC |
| 2022-07-15 | Novo Holdings A/S | 10% Owner | 800,000 | $2.00 | $1.6M | Sale | SEC |
Compiled automatically from public SEC filings. Not investment advice. Get every new insider purchase in the daily report.
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