Fox Run Management’s Quanterix QTRX Stock Holding History

Fox Run Management’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	–	Sell	-39,592	Closed	-$136K	–	1234
2026 Q1	$136K	Buy	+39,592	New	+$231K	0.02%	812
2025 Q1	–	Sell	-43,784	Closed	-$465K	–	1168
2024 Q4	$465K	Buy	43,784 +31,577	+259%	+$384K	0.08%	461
2024 Q3	$158K	Buy	+12,207	New	+$163K	0.04%	697
2024 Q1	–	Sell	-12,696	Closed	-$347K	–	1007
2023 Q4	$347K	Buy	+12,696	New	+$299K	0.09%	444
2023 Q2	–	Sell	-13,140	Closed	-$148K	–	911
2023 Q1	$148K	Sell	13,140 -3,589	-21%	-$45.9K	0.05%	573
2022 Q4	$232K	Buy	16,729 +1,262	+8%	+$14.5K	0.09%	436
2022 Q3	$170K	Buy	+15,467	New	+$197K	0.07%	504

Other funds holding QTRX

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

BWLSA

Blue Water Life Science Advisors Larkspur, California $159M AUM 139.66% 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

Fox Run Management's QTRX Position: Q2 2026 in Review

Fox Run Management sold out of Quanterix (QTRX) in Q2 2026, closing a stake of 39,592 shares — an estimated $136K sold.

Fox Run Management first reported a position in QTRX in Q3 2022 and held it in 7 quarters. The position peaked at $465K in Q4 2024. 133 funds tracked by Wall St. Rank hold QTRX as of Q2 2026.

Fox Run Management reported no remaining Quanterix position as of Q2 2026 after selling out during the quarter.
Fox Run Management sold 39,592 Quanterix shares in Q2 2026, an estimated $136K.
Fox Run Management first reported a position in Quanterix in Q3 2022 and held it in 7 quarters.
Fox Run Management's Quanterix position peaked at $465K in Q4 2024.
133 funds tracked by Wall St. Rank held Quanterix as of Q2 2026.

Based on Fox Run Management's 13F filing for Q2 2026, filed 4 Aug 2026.