BOLT insider buying and SEC filings, explained
Bolt Biotherapeutics, Inc. · CIK 1641281
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$128K
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Sep 16–18, 2026 | Sale | Grant Yonehiro (President / COO) sold 13,176 shares between Sep 16 and Sep 18 at about $3.33 ($44K). Holdings down 43% to 17,269 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 21, 2026 |
| Sep 16–18, 2026 | Sale | Sarah Nemec (Senior VP, Finance and PAO) sold 7,842 shares between Sep 16 and Sep 18 at about $3.33 ($26K). Holdings down 31% to 17,082 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 21, 2026 |
| Jun 5, 2026 | Purchase (code P) | Sarah Nemec (Senior VP, Finance and PAO) bought 509 shares at $3.88 ($2K), reported as a purchase (code P). Holdings up 36% to 1,924 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 21, 2026 |
| Sep 16–18, 2026 | Sale | William P. Quinn (CEO and Director) sold 17,566 shares between Sep 16 and Sep 18 at about $3.33 ($58K). Holdings down 41% to 25,384 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 21, 2026 |
| Jun 5, 2026 | Purchase (code P) | William P. Quinn (CEO and Director) bought 637 shares at $3.88 ($2K), reported as a purchase (code P). Holdings up 28% to 2,950 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 21, 2026 |
| Dec 5, 2025 | Purchase (code P) | William P. Quinn (CEO and Director) bought 125 shares at $4.61 ($576), reported as a purchase (code P). Holdings up 6% to 2,313 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 4, 2026 |
| Dec 5, 2025 | Purchase (code P) | Sarah Nemec (Senior VP, Finance and PAO) bought 125 shares at $4.61 ($576), reported as a purchase (code P). Holdings up 10% to 1,415 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 4, 2026 |
17 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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