Does Ameriprise Financial own QTRX stock?

Yes. As of its Q2 2026 13F, Ameriprise Financial holds 987,424 shares of QTRX (Quanterix), worth $4.3M.

How many shares of QTRX does Ameriprise Financial own?

As of its Q2 2026 13F, Ameriprise Financial holds 987,424 shares of QTRX (Quanterix).

As of its Q2 2026 13F, Ameriprise Financial's QTRX position is worth $4.3M.

In Q2 2026, Ameriprise Financial reduced its QTRX position by 2,554,950 shares (-72.1%).

Ameriprise Financial already held QTRX in its Q1 2019 13F, the earliest on record, and has listed it in 30 quarterly 13F filings.

Position history for AMERIPRISE FINANCIAL INC's holdings in QUANTERIX CORP

Current Value

$4.3M

Current Shares

987,424

Total Value Change

-$5.6M

Total Shares Change

+604,061

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	987,424	-72.1%	$4.3M	0.0%	$4.32	0
2026-Q1	Decreased	3.5M	-29.1%	$12.5M	0.0%	$5.87	0
2025-Q4	Increased	5M	+17.7%	$31.8M	0.0%	$6.33	34
2025-Q3	Increased	4.2M	+0.2%	$23M	0.0%	$5.25	28
2025-Q2	Increased	4.2M	+14.0%	$28.2M	0.0%	$6.65	33
2025-Q1	Increased	3.7M	+15.9%	$24.2M	0.0%	$6.56	33
2024-Q4	Increased	3.2M	+111.3%	$34.1M	0.0%	$10.90	47
2024-Q3	Increased	1.5M	+15.9%	$19.7M	0.0%	$12.73	33
2024-Q2	Increased	1.3M	+58.8%	$17.3M	0.0%	$13.21	40
2024-Q1	Increased	824,712	+23.0%	$19.4M	0.0%	$23.56	34
2023-Q4	Increased	670,710	+5.5%	$18.3M	0.0%	$27.34	30
2023-Q3	Decreased	635,709	-15.7%	$17.3M	0.0%	$27.14	0
2023-Q2	Decreased	753,840	-26.5%	$17M	0.0%	$23.22	0
2023-Q1	Increased	1M	+20.2%	$11.6M	0.0%	$10.85	33
2022-Q4	Increased	853,322	+0.8%	$11.8M	0.0%	$13.85	28
2022-Q3	Increased	846,697	+334.7%	$9.3M	0.0%	$9.86	45
2022-Q2	Decreased	194,782	-16.7%	$3.2M	0.0%	$16.71	0
2022-Q1	Decreased	233,836	-78.4%	$6.8M	0.0%	$28.58	0
2021-Q4	Increased	1.1M	+5.9%	$46M	0.0%	$42.26	31
2021-Q3	Increased	1M	+1.0%	$51M	0.0%	$48.21	30
2021-Q2	Decreased	1M	-0.6%	$59.4M	0.0%	$63.94	0
2021-Q1	Decreased	1M	-10.9%	$59.6M	0.0%	$54.66	0
2020-Q4	Increased	1.1M	+20.1%	$53.2M	0.0%	$47.51	35
2020-Q3	Decreased	952,668	-12.7%	$32.1M	0.0%	$33.87	0
2020-Q2	Increased	1.1M	+9.9%	$29.8M	0.0%	$26.77	32
2020-Q1	Decreased	992,260	-15.3%	$18.2M	0.0%	$18.86	0
2019-Q4	Increased	1.2M	+9.6%	$27.7M	0.0%	$23.37	32
2019-Q3	Increased	1.1M	+80.1%	$23.5M	0.0%	$21.72	44
2019-Q2	Increased	592,974	+54.7%	$20M	0.0%	$33.79	40
2019-Q1	First report	383,363	-	$9.9M	0.0%	$25.83	0