AlphaYouWP
Insider buying
William P Donnelly bought $286K of Quanterix Corp (QTRX) stock
William P Donnelly, Dir of Quanterix Corp (QTRX), bought 99,400 shares of QTRX stock worth $286K, per an SEC Form 4 filed Aug 14, 2026.
It was an open-market purchase.
The trade happened on Aug 12, 2026, 2 days before it was made public.
QTRX has moved +8.9% since the trade date, from $2.93 to $3.19 (Sep 22, 2026 close).
- Traded
- Aug 12, 2026
- Disclosed
- Aug 14, 2026
- Filing delay
- 2 days
- Price since
- +8.9%
- Role
- Dir
- Source
- SEC Form 4
More QTRX insider and Congress trades
From a public SEC Form 4, linked above. Not investment advice, and not a recommendation to buy or sell.