DONNELLY WILLIAM P
SEC Form 4 insider trading activity
DONNELLY WILLIAM P has filed 14 SEC Form 4 filings (17 transaction rows) across 3 companies, including QTRX, TROW, IR, with disclosures dating back to 2025. 12 of those filings fall inside the rolling window. Most recent filing: Oct 2, 2026.
On the most recent filing, DONNELLY WILLIAM P is listed as Director at Quanterix Corp. Inside the rolling window, DONNELLY WILLIAM P reported 2 open-market purchases totaling $286K in QTRX and no open-market sales. The largest disclosed transaction in the window is a purchase of 72,245 QTRX shares on Aug 13, 2026, worth $212K.
Companies traded
Other insiders at QTRX
Insider Buying
$286K
reported purchases (SEC code P)
Insider Selling
$0
reported sales (SEC code S)
Companies
3
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has DONNELLY WILLIAM P made?
DONNELLY WILLIAM P has filed 14 SEC Form 4 filings (17 transaction rows) across 3 companies, including QTRX, TROW, IR since 2025.
Which companies does DONNELLY WILLIAM P trade?
DONNELLY WILLIAM P has filed SEC Form 4 disclosures for 3 companies, including QTRX, TROW, IR.
When was DONNELLY WILLIAM P's most recent SEC Form 4 filing?
DONNELLY WILLIAM P's most recent SEC Form 4 filing on Tracefour is dated Oct 2, 2026.
What is DONNELLY WILLIAM P's total buy and sell value in the current window?
Inside the rolling retention window, DONNELLY WILLIAM P bought $286K and sold $0 based on SEC Form 4 filings.
What was DONNELLY WILLIAM P's largest disclosed transaction?
The largest disclosed transaction in the current window is a purchase of 72,245 QTRX shares on 2026-08-13, worth $212K, per SEC Form 4 filings.