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
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

Ameriprise
Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
PCM
Portolan Capital Management Boston, Massachusetts $1.88B AUM 115.74% 1-Year Est. Return
BWLSA
Blue Water Life Science Advisors Larkspur, California $125M AUM 91.82% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $33.3B AUM 44.76% 1-Year Est. Return
ICM
Invenomic Capital Management Boston, Massachusetts $2.18B AUM 0.03% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
LCS
Levin Capital Strategies New York $1.49B AUM 30.44% 1-Year Est. Return
First Eagle Investment Management
First Eagle Investment Management New York $59.9B AUM 27.01% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Jim Simons's QTRX Position: Q1 2026 in Review

Jim Simons increased its Quanterix (QTRX) stake by 1,054% in Q1 2026, buying an estimated $726K and bringing the position to 136,207 shares worth $479K. The position accounts for ﹤0.01% of the portfolio, ranked #2618.

Jim Simons first reported a position in QTRX in Q2 2019 and has held it in 24 quarters since. The position peaked at $13M in Q4 2023. 128 funds tracked by Wall St. Rank hold QTRX as of Q1 2026.

  • Jim Simons held 136,207 shares of Quanterix worth $479K as of Q1 2026.
  • Jim Simons bought 124,407 Quanterix shares in Q1 2026, an estimated $726K.
  • Quanterix made up ﹤0.01% of Jim Simons's portfolio in Q1 2026, its #2618 holding.
  • Jim Simons first reported a position in Quanterix in Q2 2019 and has held it in 24 quarters since.
  • Jim Simons's Quanterix position peaked at $13M in Q4 2023.
  • 128 funds tracked by Wall St. Rank held Quanterix as of Q1 2026.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.