William P Donnelly Quanterix Corp (QTRX) insider trading activity

William P Donnelly is of Quanterix Corp. Currently has a direct ownership of 148,374 shares of QTRX, which is worth approximately $875,406. The most recent transaction as insider was on Oct 01, 2025, when has been sold 5,076 shares (Common Stock) at a price of $5.54 per share, resulting in proceeds of $28,121. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 148K

3.54% 3M change

329.04% 12M change

Total Value Held $875,406

WILLIAM P DONNELLY Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Oct 01 2025	BUY Grant, award, or other acquisition	$28,121 $5.54 p/Share	5,076 Added 3.31%	148,374 Common Stock
Jul 01 2025	BUY Grant, award, or other acquisition	$28,124 $6.69 p/Share	4,204 Added 2.85%	143,298 Common Stock
Jun 06 2025	BUY Open market or private purchase	$506,534 $5.44 p/Share	93,113 Added 40.1%	139,094 Common Stock
Apr 01 2025	BUY Grant, award, or other acquisition	$17,855 $6.66 p/Share	2,681 Added 5.51%	45,981 Common Stock
Jan 02 2025	BUY Grant, award, or other acquisition	$46,897 $5.38 p/Share	8,717 Added 16.76%	43,300 Common Stock
Oct 01 2024	BUY Grant, award, or other acquisition	$12,500 $12.5 p/Share	1,000 Added 2.81%	34,583 Common Stock
Jul 01 2024	BUY Grant, award, or other acquisition	$12,489 $12.68 p/Share	985 Added 2.85%	33,583 Common Stock
Apr 01 2024	BUY Grant, award, or other acquisition	$12,484 $23.78 p/Share	525 Added 1.59%	32,598 Common Stock
Jan 02 2024	BUY Grant, award, or other acquisition	$46,267 $13.58 p/Share	3,407 Added 9.6%	32,073 Common Stock
Oct 02 2023	BUY Grant, award, or other acquisition	$6,089 $26.71 p/Share	228 Added 0.79%	28,666 Common Stock
Sep 08 2023	BUY Open market or private purchase	$501,970 $24.85 p/Share	20,200 Added 41.53%	28,438 Common Stock
Aug 17 2023	BUY Grant, award, or other acquisition	-	8,238 Added 50.0%	8,238 Common Stock

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