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Platinum Investment Management’s Quanterix QTRX Stock Holding History

Platinum Investment Management’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
2025
Q1 		– Sell
-260,181
Closed -$2.77M – 126
2024
Q4 		$2.77M Sell
260,181
-17,455
-6% -$212K 0.16% 55
2024
Q3 		$3.6M Hold
277,636
– – 0.16% 50
2024
Q2 		$3.67M Buy
277,636
+60,194
+28% +$1.01M 0.15% 48
2024
Q1 		$5.12M Sell
217,442
-293,311
-57% -$7.27M 0.21% 40
2023
Q4 		$14M Sell
510,753
-148,715
-23% -$3.5M 0.57% 30
2023
Q3 		$17.9M Sell
659,468
-56,533
-8% -$1.4M 0.7% 27
2023
Q2 		$16.1M Sell
716,001
-289,869
-29% -$5.17M 0.56% 37
2023
Q1 		$11.3M Sell
1,005,870
-227
-0% -$2.9K 0.39% 42
2022
Q4 		$13.9M Sell
1,006,097
-149,721
-13% -$1.72M 0.53% 33
2022
Q3 		$12.7M Buy
1,155,818
+515,828
+81% +$6.56M 0.53% 33
2022
Q2 		$10.4M Buy
639,990
+44,055
+7% +$906K 0.39% 39
2022
Q1 		$17.4M Buy
595,935
+30,325
+5% +$927K 0.53% 32
2021
Q4 		$24M Buy
565,610
+51,122
+10% +$2.39M 0.67% 29
2021
Q3 		$25.6M Hold
514,488
– – 0.72% 26
2021
Q2 		$30.2M Buy
514,488
+55,054
+12% +$3.2M 0.7% 35
2021
Q1 		$26.9M Buy
459,434
+141,024
+44% +$9.53M 0.6% 34
2020
Q4 		$14.8M Sell
318,410
-20,913
-6% -$913K 0.34% 41
2020
Q3 		$11.4M Buy
339,323
+140,459
+71% +$4.52M 0.28% 43
2020
Q2 		$5.45M Sell
198,864
-26,711
-12% -$675K 0.12% 53
2020
Q1 		$4.14M Buy
225,575
+48,021
+27% +$1.1M 0.1% 52
2019
Q4 		$4.2M Buy
177,554
+17,781
+11% +$406K 0.08% 48
2019
Q3 		$3.51M Buy
159,773
+18,553
+13% +$517K 0.08% 50
2019
Q2 		$4.77M Sell
141,220
-63,662
-31% -$1.65M 0.11% 42
2019
Q1 		$5.29M Hold
204,882
– – 0.12% 43
2018
Q4 		$3.75M Buy
204,882
+29,882
+17% +$536K 0.13% 38
2018
Q3 		$3.75M Hold
175,000
– – 0.11% 39
2018
Q2 		$2.51M Hold
175,000
– – 0.06% 49
2018
Q1 		$2.98M Hold
175,000
– – 0.08% 39
2017
Q4 		$3.76M Buy
+175,000
New +$3.42M 0.1% 40

Other funds holding QTRX

Ameriprise
Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
PCM
Portolan Capital Management Boston, Massachusetts $2.67B AUM 169.09% 1-Year Est. Return
KLP
Kent Lake PR Anasco, Puerto Rico $198M AUM 5.21% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
EIP
Easterly Investment Partners Beverly, Massachusetts $1.97B AUM 25.87% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 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 $1.67B AUM 1.43% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Platinum Investment Management's QTRX Position: Q1 2025 in Review

Platinum Investment Management sold out of Quanterix (QTRX) in Q1 2025, closing a stake of 260,181 shares — an estimated $2.77M sold.

Platinum Investment Management first reported a position in QTRX in Q4 2017 and held it in 29 quarters. The position peaked at $30.2M in Q2 2021. 149 funds tracked by Wall St. Rank hold QTRX as of Q1 2025.

  • Platinum Investment Management reported no remaining Quanterix position as of Q1 2025 after selling out during the quarter.
  • Platinum Investment Management sold 260,181 Quanterix shares in Q1 2025, an estimated $2.77M.
  • Platinum Investment Management first reported a position in Quanterix in Q4 2017 and held it in 29 quarters.
  • Platinum Investment Management's Quanterix position peaked at $30.2M in Q2 2021.
  • 149 funds tracked by Wall St. Rank held Quanterix as of Q1 2025.

Based on Platinum Investment Management's 13F filing for Q1 2025, filed 15 May 2025.