Blue Water Life Science Advisors’s Quanterix QTRX Stock Holding History

Blue Water Life Science Advisors’s Portfolio QTRX Stock Details QTRX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$15M	Buy	3,474,202 +1,332,055	+62%	+$4.32M	9.45%	6
2026 Q1	$7.54M	Buy	2,142,147 +50,000	+2%	+$292K	6.05%	8
2025 Q4	$13.3M	Buy	2,092,147 +1,134,400	+118%	+$7.05M	8.35%	5
2025 Q3	$5.2M	Hold	957,747	–	–	4.74%	7
2025 Q2	$6.37M	Buy	957,747 +585,572	+157%	+$3.26M	5.04%	7
2025 Q1	$2.42M	Buy	372,175 +293,782	+375%	+$2.45M	2.4%	7
2024 Q4	$833K	Hold	78,393	–	–	0.74%	9
2024 Q3	$1.02M	Sell	78,393 -200,000	-72%	-$2.67M	0.89%	8
2024 Q2	$3.68M	Sell	278,393 -30,700	-10%	-$513K	3.58%	6
2024 Q1	$7.28M	Buy	309,093 +20,897	+7%	+$518K	6.85%	5
2023 Q4	$7.88M	Buy	+288,196	New	+$6.78M	6.9%	8

Other funds holding QTRX

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

First Eagle Investment Management New York $60.8B AUM 26.63% 1-Year Est. Return

PCM

Portolan Capital Management Boston, Massachusetts $2.67B AUM 169.09% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

LCM

Lionhunter Capital Management New York $222M AUM

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return

Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Blue Water Life Science Advisors's QTRX Position: Q2 2026 in Review

Blue Water Life Science Advisors increased its Quanterix (QTRX) stake by 62% in Q2 2026, buying an estimated $4.32M and bringing the position to 3,474,202 shares worth $15M. The position accounts for 9.45% of the portfolio, ranked #6.

Blue Water Life Science Advisors first reported a position in QTRX in Q4 2023 and has held it in 11 quarters since. 133 funds tracked by Wall St. Rank hold QTRX as of Q2 2026.

Blue Water Life Science Advisors held 3,474,202 shares of Quanterix worth $15M as of Q2 2026.
Blue Water Life Science Advisors bought 1,332,055 Quanterix shares in Q2 2026, an estimated $4.32M.
Quanterix made up 9.45% of Blue Water Life Science Advisors's portfolio in Q2 2026, its #6 holding.
Blue Water Life Science Advisors first reported a position in Quanterix in Q4 2023 and has held it in 11 quarters since.
133 funds tracked by Wall St. Rank held Quanterix as of Q2 2026.

Based on Blue Water Life Science Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.