Simplex Trading
QTRX icon

Simplex Trading’s Quanterix QTRX Stock Holding History

Simplex Trading’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 		$8.64K Buy
2,000
+1,000
+100% +$3.24K ﹤0.01% 7801
2026
Q1 		$3.52K Sell
1,000
-3,200
-76% -$18.7K ﹤0.01% 8097
2025
Q4 		$21.4K Hold
4,200
– – ﹤0.01% 6418
2025
Q3 		$22K Buy
4,200
+2,100
+100% +$11.2K ﹤0.01% 7263
2025
Q2 		$13K Buy
+2,100
New +$11.7K ﹤0.01% 7125
2024
Q4 		– Sell
-1,000
Closed -$12K – 9419
2024
Q3 		$12K Buy
+1,000
New +$13.4K ﹤0.01% 7084
2024
Q2 		– Sell
-800
Closed -$18K – 9617
2024
Q1 		$18K Sell
800
-1,400
-64% -$34.7K ﹤0.01% 7184
2023
Q4 		$60K Sell
2,200
-7,500
-77% -$177K ﹤0.01% 5923
2023
Q3 		$263K Buy
9,700
+8,600
+782% +$213K ﹤0.01% 4069
2023
Q2 		$24K Buy
+1,100
New +$19.6K ﹤0.01% 6596
2023
Q1 		– Sell
-25,900
Closed -$358K – 9926
2022
Q4 		$358K Buy
25,900
+21,300
+463% +$245K ﹤0.01% 3538
2022
Q3 		$50K Buy
4,600
+2,500
+119% +$31.8K ﹤0.01% 6458
2022
Q2 		$33K Buy
2,100
+2,000
+2,000% +$41.1K ﹤0.01% 7025
2022
Q1 		$2K Hold
100
– – ﹤0.01% 9914
2021
Q4 		$4K Buy
+100
New +$4.67K ﹤0.01% 9704
2021
Q2 		– Sell
-10
Closed -$58K – 10590
2021
Q1 		$58K Buy
10
+9
+900% +$608 ﹤0.01% 6427
2020
Q4 		$4K Buy
+1
New +$44 ﹤0.01% 7802

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 $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
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

Simplex Trading's QTRX Position: Q2 2026 in Review

Simplex Trading opened a new position in Quanterix (QTRX) in Q2 2026: 7,127 shares worth $30.8K. The stake represents ﹤0.01% of the portfolio and ranks #6736 among its holdings. This is a return to the name: Simplex Trading previously reported a position in QTRX as recently as Q3 2025.

Simplex Trading first reported a position in QTRX in Q4 2020 and has held it in 12 quarters since. The position peaked at $1.91M in Q4 2022. 133 funds tracked by Wall St. Rank hold QTRX as of Q2 2026.

  • Simplex Trading held 7,127 shares of Quanterix worth $30.8K as of Q2 2026.
  • Quanterix was a new Simplex Trading position in Q2 2026.
  • Quanterix made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #6736 holding.
  • Simplex Trading first reported a position in Quanterix in Q4 2020 and has held it in 12 quarters since.
  • Simplex Trading's Quanterix position peaked at $1.91M in Q4 2022.
  • 133 funds tracked by Wall St. Rank held Quanterix as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.