Bolt Biotherapeutics, Inc. (BOLT) insider trading
Bolt Biotherapeutics, Inc. insiders have made 2 open-market purchases worth $4k since Sep 21, 2026, by 2 different insiders. The latest: Sarah Nemec (Officer) bought $2k, filed Sep 21, 2026, scored 25 out of 100. The biggest: $2k by William P. Quinn, filed Sep 21, 2026.
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Insider purchases
| Filed | Insider | Stake | Score | Bought | 1 week | 1 month |
|---|---|---|---|---|---|---|
| Sep 21 Form 4 (opens sec.gov) |
Sarah NemecOfficer · filed lateOfficer · Near 52-week low · Filed late | +36% stake | 25 | $2k 509 at $3.88 |
— | — |
| Sep 21 Form 4 (opens sec.gov) |
William P. QuinnPresident · filed latePresident · Near 52-week low · Filed late | +28% stake | 35 | $2k 637 at $3.88 |
— | — |
Insider sales
3 open-market sales on record
| Filed | Insider | Sold |
|---|---|---|
| Sep 21 Form 4 (opens sec.gov) |
Grant YonehiroCOO | $44k 13,176 at $3.32 · 43% of holdings |
| Sep 21 Form 4 (opens sec.gov) |
Sarah NemecOfficer | $26k 7,842 at $3.32 |
| Sep 21 Form 4 (opens sec.gov) |
William P. QuinnPresident | $58k 17,566 at $3.32 |
Most insider sales are planned in advance or made for personal reasons, so a sale says less than a buy.
Insiders who bought BOLT
- Sarah Nemec Officer
- William P. Quinn President
Questions
Are insiders buying BOLT stock?
Yes. In the last 90 days, 2 open-market purchases were filed, worth $4k, against $128k of open-market sales.
Who bought BOLT stock most recently?
Sarah Nemec, Officer, bought 509 shares for $2k (Form 4 (opens sec.gov), filed Sep 21, 2026).
How does InsiderBeacon score an insider buy?
Out of 100, from who bought, how much their stake grew, the size of the trade, whether other insiders bought within ten days, where the price sat in its 52-week range, and whether it was a first or a routine buy. The score is fixed when the filing arrives. The formula and the research behind it.
Insiders are also buying, same industry
Data as of Sep 21, 2026, from SEC EDGAR Form 4 filings: open-market purchases (code P) of $25,000 or more, and open-market sales. Every row links to its filing. Scores summarise what a filing says (how the score works); outcomes are hypothetical, from the first close after the filing, and past results don't predict future ones. Disclaimer