William P. Quinn
William P. Quinn has made 1 open-market purchase worth $2k since Sep 21, 2026, in 1 company. The latest: $2k of BOLT, filed Sep 21, 2026, scored 35 out of 100.
President, Bolt Biotherapeutics, Inc.
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Purchases
| Filed | Stock | Stake | Score | Bought | 1 week | 1 month |
|---|---|---|---|---|---|---|
| Sep 21 Form 4 (opens sec.gov) |
BOLTBolt Biotherapeutics, Inc. · PresidentPresident · Near 52-week low · Filed late | +28% stake | 35 | $2k 637 at $3.88 |
— | — |
Sales
1 open-market sale on record
| Filed | Stock | Sold |
|---|---|---|
| Sep 21 Form 4 (opens sec.gov) |
BOLTPresident | $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.
Questions
What stock has William P. Quinn bought?
BOLT (Bolt Biotherapeutics, Inc.), all on the open market and reported on SEC Form 4.
When did William P. Quinn last buy?
Sep 21, 2026: 637 shares of BOLT at $3.88, $2k in all (Form 4 (opens sec.gov)).
Has William P. Quinn filed a notice of a planned sale?
Not in the filings on record. A Form 144 is the notice an insider must file before selling restricted or control shares, and it lands on EDGAR before the sale is reported.
Is William P. Quinn a routine or an opportunistic buyer?
There isn't enough history to say yet.
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