QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 147,824 Value ($000) $940 Avg Close $6.21 Range $4.50 - $7.88
Q3 2025
Shares 195,759 Value ($000) $1,063 Avg Close $5.32 Range $4.15 - $7.09
Q2 2025
Shares 289,759 Value ($000) $1,927 Avg Close $5.57 Range $4.05 - $7.03
Q1 2025
Shares 128,008 Value ($000) $833 Avg Close $8.34 Range $6.16 - $12.41
Q4 2024
Shares 116,060 Value ($000) $1,234 Avg Close $12.16 Range $9.87 - $15.67
Q3 2024
Shares 150,549 Value ($000) $1,951 Avg Close $13.36 Range $10.50 - $16.74
Q2 2024
Shares 89,537 Value ($000) $1,183 Avg Close $16.71 Range $11.83 - $23.86
Q1 2024
Shares 51,736 Value ($000) $1,219 Avg Close $24.77 Range $21.53 - $29.70
Q4 2023
Shares 33,483 Value ($000) $915 Avg Close $23.54 Range $19.35 - $28.78
Q3 2023
Shares 22,231 Value ($000) $603 Avg Close $24.75 Range $20.57 - $28.77
Q2 2023
Shares 32,107 Value ($000) $724 Avg Close $17.82 Range $10.64 - $24.14
Q1 2023
Shares 66,235 Value ($000) $746 Avg Close $12.78 Range $10.02 - $15.63
Q4 2022
Shares 66,182 Value ($000) $917 Avg Close $11.51 Range $8.19 - $14.55
Q3 2022
Shares 76,238 Value ($000) $840 Avg Close $12.71 Range $6.31 - $19.46
Q3 2021
Shares 7,200 Value ($000) $358 Avg Close $51.55 Range $44.20 - $60.95
Q2 2021
Shares 5,300 Value ($000) $311 Avg Close $58.04 Range $41.76 - $69.22
Q1 2021
Shares 5,300 Value ($000) $310 Avg Close $67.60 Range $42.92 - $92.57