Charles Schwab’s Quanterix QTRX Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$1.34M Sell
310,701
-35,212
-10% -$114K ﹤0.01% 2914
2026
Q1
$1.22M Sell
345,913
-16,827
-5% -$98.2K ﹤0.01% 2848
2025
Q4
$2.31M Buy
362,740
+31,494
+10% +$196K ﹤0.01% 2719
2025
Q3
$1.8M Buy
331,246
+32,257
+11% +$172K ﹤0.01% 2778
2025
Q2
$1.99M Buy
298,989
+6,184
+2% +$34.5K ﹤0.01% 2673
2025
Q1
$1.91M Buy
292,805
+26,190
+10% +$219K ﹤0.01% 2634
2024
Q4
$2.83M Sell
266,615
-58,989
-18% -$717K ﹤0.01% 2567
2024
Q3
$4.22M Sell
325,604
-2,915
-0.9% -$38.9K ﹤0.01% 2456
2024
Q2
$4.34M Buy
328,519
+13,136
+4% +$220K ﹤0.01% 2413
2024
Q1
$7.43M Buy
315,383
+19,572
+7% +$485K ﹤0.01% 2135
2023
Q4
$8.09M Buy
295,811
+28,784
+11% +$678K ﹤0.01% 2099
2023
Q3
$7.25M Buy
267,027
+5,981
+2% +$148K ﹤0.01% 2085
2023
Q2
$5.89M Buy
261,046
+7,160
+3% +$128K ﹤0.01% 2171
2023
Q1
$2.86M Buy
253,886
+1,101
+0.4% +$14.1K ﹤0.01% 2424
2022
Q4
$3.5M Buy
252,785
+3,485
+1% +$40.1K ﹤0.01% 2384
2022
Q3
$2.75M Buy
249,300
+8,710
+4% +$111K ﹤0.01% 2486
2022
Q2
$3.9M Sell
240,590
-17,128
-7% -$352K ﹤0.01% 2298
2022
Q1
$7.52M Buy
257,718
+8,614
+3% +$263K ﹤0.01% 2087
2021
Q4
$10.6M Sell
249,104
-588
-0.2% -$27.5K ﹤0.01% 1972
2021
Q3
$12.4M Buy
249,692
+32,652
+15% +$1.68M ﹤0.01% 1879
2021
Q2
$12.7M Buy
217,040
+17,561
+9% +$1.02M ﹤0.01% 1876
2021
Q1
$11.7M Buy
199,479
+52,644
+36% +$3.56M ﹤0.01% 1861
2020
Q4
$6.83M Buy
146,835
+3,324
+2% +$145K ﹤0.01% 2067
2020
Q3
$4.84M Buy
143,511
+39,898
+39% +$1.28M ﹤0.01% 2077
2020
Q2
$2.84M Buy
103,613
+16,725
+19% +$423K ﹤0.01% 2294
2020
Q1
$1.6M Buy
86,888
+1,092
+1% +$24.9K ﹤0.01% 2354
2019
Q4
$2.03M Buy
85,796
+3,964
+5% +$90.5K ﹤0.01% 2409
2019
Q3
$1.8M Buy
81,832
+18,561
+29% +$518K ﹤0.01% 2417
2019
Q2
$2.14M Buy
63,271
+11,682
+23% +$302K ﹤0.01% 2350
2019
Q1
$1.33M Buy
51,589
+2,923
+6% +$65.3K ﹤0.01% 2470
2018
Q4
$892K Sell
48,666
-3,749
-7% -$67.3K ﹤0.01% 2574
2018
Q3
$1.12M Buy
52,415
+29,739
+131% +$470K ﹤0.01% 2587
2018
Q2
$326K Buy
22,676
+774
+4% +$13.4K ﹤0.01% 2931
2018
Q1
$374K Buy
+21,902
New +$439K ﹤0.01% 2809

Other funds holding QTRX

Charles Schwab's QTRX Position: Q2 2026 in Review

Charles Schwab reduced its Quanterix (QTRX) stake by 10% in Q2 2026, selling an estimated $114K and leaving 310,701 shares worth $1.34M. The position accounts for ﹤0.01% of the portfolio, ranked #2914.

Charles Schwab first reported a position in QTRX in Q1 2018 and has held it in 34 quarters since. The position peaked at $12.7M in Q2 2021. 133 funds tracked by Wall St. Rank hold QTRX as of Q2 2026.

  • Charles Schwab held 310,701 shares of Quanterix worth $1.34M as of Q2 2026.
  • Charles Schwab sold 35,212 Quanterix shares in Q2 2026, an estimated $114K.
  • Quanterix made up ﹤0.01% of Charles Schwab's portfolio in Q2 2026, its #2914 holding.
  • Charles Schwab first reported a position in Quanterix in Q1 2018 and has held it in 34 quarters since.
  • Charles Schwab's Quanterix position peaked at $12.7M in Q2 2021.
  • 133 funds tracked by Wall St. Rank held Quanterix as of Q2 2026.

Based on Charles Schwab's 13F filing for Q2 2026, filed 14 Aug 2026.