QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q4 2025
Shares 2,718 Value ($000) $17 Avg Close $6.21 Range $4.50 - $7.88
Q3 2025
Shares 2,538 Value ($000) $14 Avg Close $5.32 Range $4.15 - $7.09
Q2 2025
Shares 2,603 Value ($000) $17 Avg Close $5.57 Range $4.05 - $7.03
Q1 2025
Shares 2,603 Value ($000) $17 Avg Close $8.34 Range $6.16 - $12.41
Q4 2024
Shares 34,030 Value ($000) $362 Avg Close $12.16 Range $9.87 - $15.67
Q3 2024
Shares 34,341 Value ($000) $445 Avg Close $13.36 Range $10.50 - $16.74
Q2 2024
Shares 35,420 Value ($000) $468 Avg Close $16.71 Range $11.83 - $23.86
Q1 2024
Shares 35,906 Value ($000) $846 Avg Close $24.77 Range $21.53 - $29.70
Q4 2023
Shares 37,576 Value ($000) $1,027 Avg Close $23.54 Range $19.35 - $28.78
Q3 2023
Shares 39,174 Value ($000) $1,063 Avg Close $24.75 Range $20.57 - $28.77
Q2 2023
Shares 42,963 Value ($000) $969 Avg Close $17.82 Range $10.64 - $24.14
Q1 2023
Shares 43,545 Value ($000) $491 Avg Close $12.78 Range $10.02 - $15.63
Q4 2022
Shares 44,083 Value ($000) $611 Avg Close $11.51 Range $8.19 - $14.55
Q3 2022
Shares 43,575 Value ($000) $480 Avg Close $12.71 Range $6.31 - $19.46
Q2 2022
Shares 45,147 Value ($000) $731 Avg Close $20.56 Range $14.58 - $31.33
Q1 2022
Shares 62,760 Value ($000) $1,832 Avg Close $30.56 Range $22.70 - $43.32
Q4 2021
Shares 66,185 Value ($000) $2,806 Avg Close $46.70 Range $35.02 - $60.92
Q3 2021
Shares 40,464 Value ($000) $2,015 Avg Close $51.55 Range $44.20 - $60.95
Q2 2021
Shares 42,522 Value ($000) $2,494 Avg Close $58.04 Range $41.76 - $69.22
Q1 2021
Shares 53,813 Value ($000) $3,146 Avg Close $67.60 Range $42.92 - $92.57
Q4 2020
Shares 31,831 Value ($000) $1,480 Avg Close $43.65 Range $33.55 - $52.75
Q3 2020
Shares 31,831 Value ($000) $1,074 Avg Close $32.20 Range $26.01 - $37.77
Q2 2020
Shares 28,564 Value ($000) $782 Avg Close $25.27 Range $17.12 - $28.99
Q1 2020
Shares 20,632 Value ($000) $379 Avg Close $22.82 Range $10.89 - $29.00
Q4 2019
Shares 20,394 Value ($000) $482 Avg Close $22.82 Range $19.08 - $26.07
Q3 2019
Shares 20,252 Value ($000) $445 Avg Close $27.89 Range $21.17 - $35.69
Q2 2019
Shares 14,659 Value ($000) $495 Avg Close $25.87 Range $19.54 - $36.15
Q1 2019
Shares 13,327 Value ($000) $344 Avg Close $22.33 Range $17.08 - $26.06
Q4 2018
Shares 13,327 Value ($000) $244 Avg Close $17.94 Range $16.00 - $22.23
Q3 2018
Shares 12,759 Value ($000) $273 Avg Close $15.81 Range $13.00 - $22.61
Q2 2018
Shares 7,565 Value ($000) $109 Avg Close $17.31 Range $13.53 - $20.83
Q1 2018
Shares 7,565 Value ($000) $129 Avg Close $20.04 Range $16.03 - $24.80