Jim Simons
QTRX icon

Jim Simons’s Quanterix QTRX Stock Holding History

Jim Simons’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
-136,207
Closed -$479K – 3547
2026
Q1 		$479K Buy
136,207
+124,407
+1,054% +$726K ﹤0.01% 2618
2025
Q4 		$75K Buy
+11,800
New +$73.3K ﹤0.01% 3043
2025
Q3 		– Sell
-103,200
Closed -$686K – 3830
2025
Q2 		$686K Sell
103,200
-99,721
-49% -$556K ﹤0.01% 2683
2025
Q1 		$1.32M Buy
202,921
+143,821
+243% +$1.2M ﹤0.01% 2231
2024
Q4 		$628K Sell
59,100
-73,005
-55% -$888K ﹤0.01% 2744
2024
Q3 		$1.71M Sell
132,105
-252,495
-66% -$3.37M ﹤0.01% 2127
2024
Q2 		$5.08M Sell
384,600
-40,786
-10% -$682K 0.01% 1285
2024
Q1 		$10M Sell
425,386
-49,314
-10% -$1.22M 0.02% 984
2023
Q4 		$13M Buy
474,700
+154,900
+48% +$3.65M 0.02% 819
2023
Q3 		$8.68M Buy
319,800
+98,400
+44% +$2.44M 0.01% 1005
2023
Q2 		$4.99M Sell
221,400
-6,000
-3% -$107K 0.01% 1431
2023
Q1 		$2.56M Buy
227,400
+123,000
+118% +$1.57M ﹤0.01% 1872
2022
Q4 		$1.45M Buy
104,400
+4,000
+4% +$46K ﹤0.01% 2288
2022
Q3 		$1.11M Buy
100,400
+48,600
+94% +$618K ﹤0.01% 2426
2022
Q2 		$839K Sell
51,800
-147,700
-74% -$3.04M ﹤0.01% 2827
2022
Q1 		$5.82M Buy
199,500
+31,700
+19% +$969K 0.01% 1479
2021
Q4 		$7.12M Sell
167,800
-7,200
-4% -$336K 0.01% 1278
2021
Q3 		$8.71M Buy
175,000
+89,400
+104% +$4.61M 0.01% 1116
2021
Q2 		$5.02M Sell
85,600
-36,700
-30% -$2.13M 0.01% 1641
2021
Q1 		$7.15M Buy
122,300
+112,700
+1,174% +$7.62M 0.01% 1424
2020
Q4 		$446K Buy
+9,600
New +$419K ﹤0.01% 2868
2020
Q2 		– Sell
-12,800
Closed -$235K – 3705
2020
Q1 		$235K Sell
12,800
-3,800
-23% -$86.7K ﹤0.01% 3056
2019
Q4 		$392K Buy
+16,600
New +$379K ﹤0.01% 2981
2019
Q3 		– Sell
-7,300
Closed -$247K – 3646
2019
Q2 		$247K Buy
+7,300
New +$189K ﹤0.01% 3243

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
Portolan Capital Management
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

Jim Simons's QTRX Position: Q2 2026 in Review

Jim Simons sold out of Quanterix (QTRX) in Q2 2026, closing a stake of 136,207 shares — an estimated $479K sold.

Jim Simons first reported a position in QTRX in Q2 2019 and held it in 24 quarters. The position peaked at $13M in Q4 2023. 132 funds tracked by Wall St. Rank hold QTRX as of Q2 2026.

  • Jim Simons reported no remaining Quanterix position as of Q2 2026 after selling out during the quarter.
  • Jim Simons sold 136,207 Quanterix shares in Q2 2026, an estimated $479K.
  • Jim Simons first reported a position in Quanterix in Q2 2019 and held it in 24 quarters.
  • Jim Simons's Quanterix position peaked at $13M in Q4 2023.
  • 132 funds tracked by Wall St. Rank held Quanterix as of Q2 2026.

Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.