State of Wisconsin Investment Board
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State of Wisconsin Investment Board’s Quanterix QTRX Stock Holding History

State of Wisconsin Investment Board’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 		$296K Sell
84,124
-63,700
-43% -$372K ﹤0.01% 2221
2025
Q4 		$940K Sell
147,824
-47,935
-24% -$298K ﹤0.01% 1706
2025
Q3 		$1.06M Sell
195,759
-94,000
-32% -$500K ﹤0.01% 1596
2025
Q2 		$1.93M Buy
289,759
+161,751
+126% +$901K ﹤0.01% 1315
2025
Q1 		$833K Buy
128,008
+11,948
+10% +$99.7K ﹤0.01% 1550
2024
Q4 		$1.23M Sell
116,060
-34,489
-23% -$419K ﹤0.01% 1444
2024
Q3 		$1.95M Buy
150,549
+61,012
+68% +$815K ﹤0.01% 1316
2024
Q2 		$1.18M Buy
89,537
+37,801
+73% +$632K ﹤0.01% 1504
2024
Q1 		$1.22M Buy
51,736
+18,253
+55% +$452K ﹤0.01% 1375
2023
Q4 		$915K Buy
33,483
+11,252
+51% +$265K ﹤0.01% 1420
2023
Q3 		$603K Sell
22,231
-9,876
-31% -$244K ﹤0.01% 1644
2023
Q2 		$724K Sell
32,107
-34,128
-52% -$608K ﹤0.01% 1612
2023
Q1 		$746K Buy
66,235
+53
+0.1% +$677 ﹤0.01% 1635
2022
Q4 		$917K Sell
66,182
-10,056
-13% -$116K ﹤0.01% 1537
2022
Q3 		$840K Buy
+76,238
New +$969K ﹤0.01% 1637
2021
Q4 		– Sell
-7,200
Closed -$358K – 2196
2021
Q3 		$358K Buy
7,200
+1,900
+36% +$97.9K ﹤0.01% 1808
2021
Q2 		$311K Hold
5,300
– – ﹤0.01% 1918
2021
Q1 		$310K Buy
+5,300
New +$358K ﹤0.01% 1860

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 $30.3B AUM 33.75% 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

State of Wisconsin Investment Board's QTRX Position: Q1 2026 in Review

State of Wisconsin Investment Board reduced its Quanterix (QTRX) stake by 43% in Q1 2026, selling an estimated $372K and leaving 84,124 shares worth $296K. The position accounts for ﹤0.01% of the portfolio, ranked #2221.

State of Wisconsin Investment Board first reported a position in QTRX in Q1 2021 and has held it in 18 quarters since. The position peaked at $1.95M in Q3 2024. 128 funds tracked by Wall St. Rank hold QTRX as of Q1 2026.

  • State of Wisconsin Investment Board held 84,124 shares of Quanterix worth $296K as of Q1 2026.
  • State of Wisconsin Investment Board sold 63,700 Quanterix shares in Q1 2026, an estimated $372K.
  • Quanterix made up ﹤0.01% of State of Wisconsin Investment Board's portfolio in Q1 2026, its #2221 holding.
  • State of Wisconsin Investment Board first reported a position in Quanterix in Q1 2021 and has held it in 18 quarters since.
  • State of Wisconsin Investment Board's Quanterix position peaked at $1.95M in Q3 2024.
  • 128 funds tracked by Wall St. Rank held Quanterix as of Q1 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q1 2026, filed 15 May 2026.