JO
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John Overdeck’s Quanterix QTRX Stock Holding History

John Overdeck’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
-35,185
Closed -$124K – 5353
2026
Q1 		$124K Sell
35,185
-223,673
-86% -$1.31M ﹤0.01% 4363
2025
Q4 		$1.65M Buy
258,858
+8,784
+4% +$54.6K ﹤0.01% 2585
2025
Q3 		$1.36M Buy
250,074
+7,385
+3% +$39.3K ﹤0.01% 2384
2025
Q2 		$1.61M Buy
242,689
+106,674
+78% +$594K ﹤0.01% 1971
2025
Q1 		$885K Buy
136,015
+79,053
+139% +$660K ﹤0.01% 2245
2024
Q4 		$606K Buy
+56,962
New +$693K ﹤0.01% 2448
2024
Q2 		– Sell
-11,837
Closed -$279K – 3267
2024
Q1 		$279K Sell
11,837
-67,679
-85% -$1.68M ﹤0.01% 2589
2023
Q4 		$2.17M Sell
79,516
-91,180
-53% -$2.15M 0.01% 1472
2023
Q3 		$4.63M Sell
170,696
-67,004
-28% -$1.66M 0.01% 943
2023
Q2 		$5.36M Sell
237,700
-63,116
-21% -$1.12M 0.01% 897
2023
Q1 		$3.39M Buy
300,816
+49,085
+19% +$627K 0.01% 1090
2022
Q4 		$3.49M Sell
251,731
-81,688
-25% -$940K 0.01% 1037
2022
Q3 		$3.67M Buy
333,419
+182,670
+121% +$2.32M 0.01% 874
2022
Q2 		$2.44M Buy
150,749
+4,334
+3% +$89.1K 0.01% 1094
2022
Q1 		$4.27M Buy
146,415
+53,068
+57% +$1.62M 0.01% 990
2021
Q4 		$3.96M Sell
93,347
-25,420
-21% -$1.19M 0.01% 1338
2021
Q3 		$5.91M Buy
118,767
+66,267
+126% +$3.42M 0.01% 1116
2021
Q2 		$3.08M Sell
52,500
-74,151
-59% -$4.3M 0.01% 1534
2021
Q1 		$7.41M Buy
126,651
+121,060
+2,165% +$8.18M 0.02% 845
2020
Q4 		$260K Sell
5,591
-9,765
-64% -$426K ﹤0.01% 2970
2020
Q3 		$518K Buy
+15,356
New +$495K ﹤0.01% 2226

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

John Overdeck's QTRX Position: Q2 2026 in Review

John Overdeck sold out of Quanterix (QTRX) in Q2 2026, closing a stake of 35,185 shares — an estimated $124K sold.

John Overdeck first reported a position in QTRX in Q3 2020 and held it in 21 quarters. The position peaked at $7.41M in Q1 2021. 132 funds tracked by Wall St. Rank hold QTRX as of Q2 2026.

  • John Overdeck reported no remaining Quanterix position as of Q2 2026 after selling out during the quarter.
  • John Overdeck sold 35,185 Quanterix shares in Q2 2026, an estimated $124K.
  • John Overdeck first reported a position in Quanterix in Q3 2020 and held it in 21 quarters.
  • John Overdeck's Quanterix position peaked at $7.41M in Q1 2021.
  • 132 funds tracked by Wall St. Rank held Quanterix as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.