INNOSPEC INC

Ticker: IOSP CUSIP: 45768S105 Class: Common Stock

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

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

Q3 2025
Shares 2,920 Value ($000) $225 Avg Close $82.49 Range $73.21 - $89.37
Q2 2025
Shares 9,592 Value ($000) $807 Avg Close $86.03 Range $78.60 - $94.32
Q1 2025
Shares 2,655 Value ($000) $252 Avg Close $103.54 Range $91.98 - $114.58
Q4 2024
Shares 2,315 Value ($000) $255 Avg Close $111.62 Range $104.73 - $124.78
Q3 2024
Shares 2,127 Value ($000) $241 Avg Close $113.17 Range $101.07 - $129.81
Q2 2024
Shares 2,127 Value ($000) $263 Avg Close $121.30 Range $115.10 - $129.23
Q1 2024
Shares 1,971 Value ($000) $254 Avg Close $117.37 Range $110.33 - $126.78
Q4 2023
Shares 2,358 Value ($000) $291 Avg Close $102.52 Range $91.88 - $121.65
Q3 2023
Shares 2,708 Value ($000) $277 Avg Close $100.32 Range $93.27 - $107.44
Q1 2023
Shares 3,118 Value ($000) $320 Avg Close $102.60 Range $90.19 - $110.59
Q4 2022
Shares 3,089 Value ($000) $318 Avg Close $96.50 Range $78.79 - $110.27
Q3 2022
Shares 4,625 Value ($000) $396 Avg Close $89.51 Range $80.19 - $98.62
Q2 2022
Shares 6,206 Value ($000) $594 Avg Close $91.85 Range $81.71 - $101.29
Q3 2021
Shares 26,200 Value ($000) $2,207 Avg Close $83.46 Range $75.85 - $90.38
Q2 2021
Shares 80,400 Value ($000) $7,285 Avg Close $92.53 Range $83.80 - $100.29
Q1 2021
Shares 80,400 Value ($000) $8,256 Avg Close $92.10 Range $80.91 - $99.72
Q4 2020
Shares 80,400 Value ($000) $7,295 Avg Close $71.95 Range $57.19 - $85.43
Q3 2020
Shares 90,400 Value ($000) $5,724 Avg Close $68.67 Range $56.85 - $78.17
Q2 2020
Shares 90,400 Value ($000) $6,983 Avg Close $67.35 Range $57.02 - $79.77