Insiders who reported open-market trades in the last 12 months at the companies William P. Quinn files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
Grant Yonehiro - $44K in BOLT purchases and sales in the last 12 months
Sarah Nemec - $29K in BOLT purchases and sales in the last 12 months
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William P. Quinn is a corporate insider, tracked as President, CEO and CFO, Director of Bolt Biotherapeutics, Inc. (BOLT). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has William P. Quinn submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has William P. Quinn been buying or selling stock?
Recorded transactions: 3 open-market purchases ($4K) and 3 open-market sales ($58K) across all tracked filings.
William P. Quinn is President, CEO and CFO, Director of Bolt Biotherapeutics, Inc. (BOLT). 4 SEC Form 4 filings on record going back to 2025, most recently on 21 September 2026. Most recent open-market trade: sold $30K of BOLT on 21 September 2026. Lifetime open-market purchases: $4K. Lifetime open-market sales: $58K.
Recent transactions
7
The latest 7 SEC Form 4 transactions reported by William P. Quinn.
InsiderAlpha's records for William P. Quinn go back to 2025: 4 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $1K (3 buys totaling $4K). The largest single buy on record is $2K of BOLT in 2026. Sales side: 3 recorded sales totaling $58K, so the filing history runs sell-heavy by dollar value. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
