Quanterix Insider Trades

NASDAQ: QTRXIndustrialsBiotechnology: Laboratory Analytical InstrumentsUSD

3.28+0.07 (+2.18%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Last 12 months

Purchases: 3 · $296.05K
Sales: 0 · $0
Shares bought / sold: 102.90K / 0
Net activity: Net buying $296,049

Quanterix insider activity

Over the last 12 months, Quanterix insiders reported 100 transactions on SEC Form 4: 3 open-market purchases and 0 sales. Insiders bought $296,049 and sold $0 worth of stock, for net insider buying of $296,049. The most recent filing shows Magovcevic-Liebisch Ivana (Director) reporting a transaction in 4,224 shares on Oct 2, 2026.

Insider sales are common for compensation, tax and diversification reasons, while open-market purchases are rarer; tracking both helps put QTRX's ownership changes in context.

Summary generated from market data by MetaCap's automated system. Methodology

QTRX insider transactions

Quanterix insider transactions
Date	Insider	Type	Shares	Price	Value	Owned after	Filing
Oct 2, 2026	Magovcevic-Liebisch IvanaDirector	Option exercise	4,224	—	—	15.88K	Form 4
Oct 1, 2026	DONNELLY WILLIAM PDirector	Award	6,964	$3.41	$23.75K	169.37K	Form 4
Oct 1, 2026	Mendel ScottDirector	Award	4,398	$3.41	$15.00K	28.45K	Form 4
Sep 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	249	$2.72	$677.28	38.45K	Form 4
Sep 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	834	—	—	38.70K	Form 4
Sep 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	111	$2.72	$301.92	37.87K	Form 4
Sep 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	372	—	—	37.98K	Form 4
Sep 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	41	$2.72	$111.52	37.61K	Form 4
Sep 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	135	—	—	37.65K	Form 4
Sep 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	41	$2.72	$111.52	37.51K	Form 4
Sep 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	136	—	—	37.55K	Form 4
Sep 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	25	$2.72	$68	37.42K	Form 4
Sep 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	81	—	—	37.44K	Form 4
Aug 31, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	48	$2.67	$128.16	37.36K	Form 4
Aug 31, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	159	—	—	37.41K	Form 4
Aug 19, 2026	Elliott Jeffrey ThomasDirector	Option exercise	3,955	—	—	15.35K	Form 4
Aug 17, 2026	DONNELLY WILLIAM PDirector	Option exercise	2,802	—	—	162.40K	Form 4
Aug 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	249	$2.59	$644.91	37.25K	Form 4
Aug 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	834	—	—	37.50K	Form 4
Aug 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	111	$2.59	$287.49	36.66K	Form 4
Aug 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	372	—	—	36.78K	Form 4
Aug 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	41	$2.59	$106.19	36.40K	Form 4
Aug 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	135	—	—	36.45K	Form 4
Aug 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	41	$2.59	$106.19	36.31K	Form 4
Aug 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	136	—	—	36.35K	Form 4
Aug 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	25	$2.59	$64.75	36.22K	Form 4
Aug 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	81	—	—	36.24K	Form 4
Aug 13, 2026	DONNELLY WILLIAM PDirector	Buy	72,245	$2.93	$211.68K	99.40K	Form 4
Aug 12, 2026	DONNELLY WILLIAM PDirector	Buy	27,155	$2.75	$74.68K	27.16K	Form 4
Jul 31, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	39	$3.48	$135.72	36.16K	Form 4
Jul 31, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	130	—	—	36.20K	Form 4
Jul 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	249	$4.24	$1.06K	36.07K	Form 4
Jul 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	834	—	—	36.32K	Form 4
Jul 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	111	$4.24	$470.64	35.48K	Form 4
Jul 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	372	—	—	35.59K	Form 4
Jul 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	41	$4.24	$173.84	35.22K	Form 4
Jul 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	135	—	—	35.26K	Form 4
Jul 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	41	$4.24	$173.84	35.13K	Form 4
Jul 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	136	—	—	35.17K	Form 4
Jul 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	25	$4.24	$106	35.03K	Form 4
Jul 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	81	—	—	35.06K	Form 4
Jul 8, 2026	LAI GOLDMAN MYLADirector	Option exercise	8,073	—	—	15.04K	Form 4
Jul 8, 2026	Mendel ScottDirector	Option exercise	8,073	—	—	24.06K	Form 4
Jul 1, 2026	DONNELLY WILLIAM PDirector	Award	5,472	$4.34	$23.75K	160.31K	Form 4
Jul 1, 2026	Mendel ScottDirector	Award	3,456	$4.34	$15.00K	16.84K	Form 4
Jun 30, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	39	$4.32	$168.48	34.98K	Form 4
Jun 30, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	130	—	—	35.02K	Form 4
Jun 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	249	$3.10	$771.90	34.89K	Form 4
Jun 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	834	—	—	35.13K	Form 4
Jun 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	111	$3.10	$344.10	34.30K	Form 4
Jun 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	372	—	—	34.41K	Form 4
Jun 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	41	$3.10	$127.10	34.04K	Form 4
Jun 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	135	—	—	34.08K	Form 4
Jun 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	41	$3.10	$127.10	33.95K	Form 4
Jun 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	136	—	—	33.99K	Form 4
Jun 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	25	$3.10	$77.50	33.85K	Form 4
Jun 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	81	—	—	33.88K	Form 4
Jun 15, 2026	Sriram VandanaChief Financial Officer	Tax withholding	315	$3.10	$976.50	31.28K	Form 4
Jun 15, 2026	Sriram VandanaChief Financial Officer	Option exercise	1,056	—	—	31.60K	Form 4
Jun 15, 2026	Sriram VandanaChief Financial Officer	Tax withholding	154	$3.10	$477.40	30.54K	Form 4
Jun 15, 2026	Sriram VandanaChief Financial Officer	Option exercise	514	—	—	30.70K	Form 4
Jun 15, 2026	Sriram VandanaChief Financial Officer	Tax withholding	79	$3.10	$244.90	30.18K	Form 4
Jun 15, 2026	Sriram VandanaChief Financial Officer	Option exercise	263	—	—	30.26K	Form 4
May 31, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	39	$3.06	$119.34	33.80K	Form 4
May 31, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	130	—	—	33.83K	Form 4
May 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	249	$2.75	$684.75	33.70K	Form 4
May 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	834	—	—	33.95K	Form 4
May 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	111	$2.75	$305.25	33.12K	Form 4
May 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	372	—	—	33.23K	Form 4
May 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	41	$2.75	$112.75	32.86K	Form 4
May 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	135	—	—	32.90K	Form 4
May 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	41	$2.75	$112.75	32.76K	Form 4
May 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	136	—	—	32.80K	Form 4
May 15, 2026	Miller Michael FrancisChief Technology Officer	Tax withholding	25	$2.75	$68.75	32.67K	Form 4
May 15, 2026	Miller Michael FrancisChief Technology Officer	Option exercise	81	—	—	32.69K	Form 4
May 15, 2026	Sriram VandanaChief Financial Officer	Tax withholding	315	$2.75	$866.25	30.00K	Form 4
May 15, 2026	Sriram VandanaChief Financial Officer	Option exercise	1,056	—	—	30.31K	Form 4
May 15, 2026	Sriram VandanaChief Financial Officer	Tax withholding	154	$2.75	$423.50	29.26K	Form 4
May 15, 2026	Sriram VandanaChief Financial Officer	Option exercise	514	—	—	29.41K	Form 4
May 15, 2026	Sriram VandanaChief Financial Officer	Tax withholding	79	$2.75	$217.25	28.90K	Form 4
May 15, 2026	Sriram VandanaChief Financial Officer	Option exercise	263	—	—	28.98K	Form 4
May 12, 2026	Meadows BenjaminChief Commercial Officer	Buy	3,500	$2.77	$9.70K	3.50K	Form 4
Apr 30, 2026	Miller Michael FrancisChief Operating Officer	Tax withholding	39	$3.13	$122.07	32.61K	Form 4
Apr 30, 2026	Miller Michael FrancisChief Operating Officer	Option exercise	130	—	—	32.65K	Form 4
Apr 15, 2026	Miller Michael FrancisChief Operating Officer	Tax withholding	249	$3.60	$896.40	32.52K	Form 4
Apr 15, 2026	Miller Michael FrancisChief Operating Officer	Option exercise	834	—	—	32.77K	Form 4
Apr 15, 2026	Miller Michael FrancisChief Operating Officer	Tax withholding	111	$3.60	$399.60	31.94K	Form 4
Apr 15, 2026	Miller Michael FrancisChief Operating Officer	Option exercise	372	—	—	32.05K	Form 4
Apr 15, 2026	Miller Michael FrancisChief Operating Officer	Tax withholding	41	$3.60	$147.60	31.68K	Form 4
Apr 15, 2026	Miller Michael FrancisChief Operating Officer	Option exercise	135	—	—	31.72K	Form 4
Apr 15, 2026	Miller Michael FrancisChief Operating Officer	Tax withholding	41	$3.60	$147.60	31.58K	Form 4
Apr 15, 2026	Miller Michael FrancisChief Operating Officer	Option exercise	136	—	—	31.62K	Form 4
Apr 15, 2026	Miller Michael FrancisChief Operating Officer	Tax withholding	25	$3.60	$90	31.49K	Form 4
Apr 15, 2026	Miller Michael FrancisChief Operating Officer	Option exercise	81	—	—	31.51K	Form 4
Apr 15, 2026	Sriram VandanaChief Financial Officer	Tax withholding	315	$3.60	$1.13K	28.71K	Form 4
Apr 15, 2026	Sriram VandanaChief Financial Officer	Option exercise	1,056	—	—	29.03K	Form 4
Apr 15, 2026	Sriram VandanaChief Financial Officer	Tax withholding	154	$3.60	$554.40	27.97K	Form 4
Apr 15, 2026	Sriram VandanaChief Financial Officer	Option exercise	514	—	—	28.13K	Form 4
Apr 15, 2026	Sriram VandanaChief Financial Officer	Tax withholding	79	$3.60	$284.40	27.61K	Form 4
Apr 15, 2026	Sriram VandanaChief Financial Officer	Option exercise	263	—	—	27.69K	Form 4

Transaction codes follow SEC Form 4: P = open-market purchase, S = open-market sale, A = grant or award, M = option exercise, F = shares withheld for taxes. About Form 4