JY
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Jeff Yass’s Quanterix QTRX Stock Holding History

Jeff Yass’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
2025
Q4 		– Sell
-13,800
Closed -$74.9K – 13375
2025
Q3 		$74.9K Buy
+13,800
New +$73.4K ﹤0.01% 11710
2025
Q1 		– Sell
-22,300
Closed -$237K – 13279
2024
Q4 		$237K Buy
22,300
+3,600
+19% +$43.8K ﹤0.01% 10339
2024
Q3 		$242K Buy
+18,700
New +$250K ﹤0.01% 10085
2024
Q2 		– Sell
-39,200
Closed -$924K – 13012
2024
Q1 		$924K Sell
39,200
-11,000
-22% -$272K ﹤0.01% 7099
2023
Q4 		$1.37M Sell
50,200
-38,900
-44% -$916K ﹤0.01% 6207
2023
Q3 		$2.42M Buy
89,100
+40,500
+83% +$1M ﹤0.01% 4772
2023
Q2 		$1.1M Buy
48,600
+38,400
+376% +$684K ﹤0.01% 6461
2023
Q1 		$115K Sell
10,200
-120,200
-92% -$1.54M ﹤0.01% 11175
2022
Q4 		$1.81M Buy
130,400
+108,600
+498% +$1.25M ﹤0.01% 4905
2022
Q3 		$240K Buy
+21,800
New +$277K ﹤0.01% 10379
2022
Q2 		– Sell
-180,700
Closed -$5.28M – 13743
2022
Q1 		$5.28M Buy
180,700
+170,900
+1,744% +$5.22M ﹤0.01% 3550
2021
Q4 		$416K Sell
9,800
-14,200
-59% -$663K ﹤0.01% 9666
2021
Q3 		$1.2M Buy
24,000
+13,500
+129% +$696K ﹤0.01% 7082
2021
Q2 		$616K Sell
10,500
-2,900
-22% -$168K ﹤0.01% 9073
2021
Q1 		$783K Buy
13,400
+6,500
+94% +$439K ﹤0.01% 8364
2020
Q4 		$321K Buy
+6,900
New +$301K ﹤0.01% 9133

Other funds holding QTRX

BlackRock
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
First Eagle Investment Management New York $59.9B AUM 27.01% 1-Year Est. Return
PCM
Portolan Capital Management Boston, Massachusetts $2.67B AUM 169.09% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
LCM
Lionhunter Capital Management New York $222M AUM
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Ameriprise
Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return

Jeff Yass's QTRX Position: Q2 2026 in Review

Jeff Yass increased its Quanterix (QTRX) stake by 232% in Q2 2026, buying an estimated $382K and bringing the position to 168,620 shares worth $728K. The position accounts for ﹤0.01% of the portfolio, ranked #9001.

Jeff Yass first reported a position in QTRX in Q4 2020 and has held it in 21 quarters since. The position peaked at $5.29M in Q1 2022. 132 funds tracked by Wall St. Rank hold QTRX as of Q2 2026.

  • Jeff Yass held 168,620 shares of Quanterix worth $728K as of Q2 2026.
  • Jeff Yass bought 117,901 Quanterix shares in Q2 2026, an estimated $382K.
  • Quanterix made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #9001 holding.
  • Jeff Yass first reported a position in Quanterix in Q4 2020 and has held it in 21 quarters since.
  • Jeff Yass's Quanterix position peaked at $5.29M in Q1 2022.
  • 132 funds tracked by Wall St. Rank held Quanterix as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.