INNOSPEC INC

Ticker: IOSP CUSIP: 45768S105 Class: Common Stock

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

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

Q4 2025
Shares 1,175,122 Value ($000) $89,946 Avg Close $75.03 Range $70.10 - $79.81
Q3 2025
Shares 1,166,975 Value ($000) $90,043 Avg Close $82.49 Range $73.21 - $89.37
Q2 2025
Shares 1,168,925 Value ($000) $98,296 Avg Close $86.03 Range $78.60 - $94.32
Q1 2025
Shares 1,158,017 Value ($000) $109,722 Avg Close $103.54 Range $91.98 - $114.58
Q4 2024
Shares 1,158,583 Value ($000) $127,514 Avg Close $111.62 Range $104.73 - $124.78
Q3 2024
Shares 1,177,459 Value ($000) $133,160 Avg Close $113.17 Range $101.07 - $129.81
Q2 2024
Shares 1,188,025 Value ($000) $146,828 Avg Close $121.30 Range $115.10 - $129.23
Q1 2024
Shares 1,198,964 Value ($000) $154,594 Avg Close $117.37 Range $110.33 - $126.78
Q4 2023
Shares 1,215,525 Value ($000) $149,803 Avg Close $102.52 Range $91.88 - $121.65
Q3 2023
Shares 1,222,075 Value ($000) $124,898 Avg Close $100.32 Range $93.27 - $107.44
Q2 2023
Shares 1,226,560 Value ($000) $123,196 Avg Close $95.78 Range $88.08 - $103.21
Q1 2023
Shares 1,217,162 Value ($000) $124,964 Avg Close $102.60 Range $90.19 - $110.59
Q4 2022
Shares 1,197,700 Value ($000) $123 Avg Close $96.50 Range $78.79 - $110.27
Q3 2022
Shares 1,197,212 Value ($000) $102,565 Avg Close $89.51 Range $80.19 - $98.62
Q2 2022
Shares 1,191,031 Value ($000) $114,087 Avg Close $91.85 Range $81.71 - $101.29
Q1 2022
Shares 1,168,986 Value ($000) $108,190 Avg Close $89.19 Range $83.58 - $94.67
Q4 2021
Shares 1,157,043 Value ($000) $104,527 Avg Close $82.93 Range $76.29 - $89.94
Q3 2021
Shares 1,165,747 Value ($000) $98,181 Avg Close $83.46 Range $75.85 - $90.38
Q2 2021
Shares 1,175,244 Value ($000) $106,488 Avg Close $92.53 Range $83.80 - $100.29
Q1 2021
Shares 1,188,237 Value ($000) $122,020 Avg Close $92.10 Range $80.91 - $99.72
Q4 2020
Shares 1,237,726 Value ($000) $112,298 Avg Close $71.95 Range $57.19 - $85.43
Q3 2020
Shares 1,328,028 Value ($000) $84,090 Avg Close $68.67 Range $56.85 - $78.17
Q2 2020
Shares 1,387,907 Value ($000) $107,212 Avg Close $67.35 Range $57.02 - $79.77
Q1 2020
Shares 1,387,450 Value ($000) $96,413 Avg Close $83.79 Range $52.02 - $98.93
Q4 2019
Shares 1,439,139 Value ($000) $148,864 Avg Close $87.47 Range $77.84 - $97.70
Q3 2019
Shares 1,454,137 Value ($000) $129,622 Avg Close $81.78 Range $74.31 - $88.66
Q2 2019
Shares 1,467,432 Value ($000) $133,885 Avg Close $76.63 Range $71.16 - $83.47
Q1 2019
Shares 1,460,495 Value ($000) $121,733 Avg Close $67.58 Range $51.63 - $78.46
Q4 2018
Shares 1,465,866 Value ($000) $90,532 Avg Close $62.18 Range $48.12 - $70.66
Q3 2018
Shares 1,481,571 Value ($000) $113,710 Avg Close $70.20 Range $64.67 - $74.99
Q2 2018
Shares 1,497,213 Value ($000) $114,612 Avg Close $67.39 Range $59.37 - $73.05
Q1 2018
Shares 1,490,072 Value ($000) $102,219 Avg Close $62.31 Range $55.67 - $66.49
Q4 2017
Shares 1,403,568 Value ($000) $99,092 Avg Close $59.54 Range $53.90 - $66.58
Q3 2017
Shares 1,359,181 Value ($000) $83,793 Avg Close $53.37 Range $48.20 - $59.20
Q2 2017
Shares 1,348,084 Value ($000) $88,366 Avg Close $57.04 Range $53.20 - $62.50
Q1 2017
Shares 1,348,607 Value ($000) $87,321 Avg Close $59.26 Range $51.41 - $66.19
Q4 2016
Shares 1,325,355 Value ($000) $90,788 Avg Close $56.82 Range $47.94 - $64.99
Q3 2016
Shares 1,289,303 Value ($000) $78,401 Avg Close $48.99 Range $39.67 - $53.81
Q2 2016
Shares 1,286,671 Value ($000) $59,173 Avg Close $41.52 Range $37.19 - $44.47
Q1 2016
Shares 1,238,147 Value ($000) $53,687 Avg Close $40.40 Range $36.39 - $46.84
Q4 2015
Shares 1,120,831 Value ($000) $60,873 Avg Close $48.12 Range $40.31 - $52.05
Q3 2015
Shares 1,018,380 Value ($000) $47,366 Avg Close $39.87 Range $35.73 - $44.30
Q2 2015
Shares 946,528 Value ($000) $42,632 Avg Close $38.87 Range $36.94 - $40.69
Q1 2015
Shares 884,010 Value ($000) $41,009 Avg Close $37.07 Range $33.21 - $40.57
Q4 2014
Shares 808,308 Value ($000) $34,515 Avg Close $35.30 Range $30.04 - $40.52
Q3 2014
Shares 772,083 Value ($000) $27,718 Avg Close $34.84 Range $30.82 - $37.97
Q2 2014
Shares 646,029 Value ($000) $27,889 Avg Close $36.87 Range $34.10 - $39.69
Q1 2014
Shares 590,138 Value ($000) $26,691 Avg Close $37.58 Range $34.73 - $40.51
Q4 2013
Shares 562,719 Value ($000) $26,009 Avg Close $38.90 Range $36.04 - $42.14
Q3 2013
Shares 568,679 Value ($000) $26,534 Avg Close $36.35 Range $33.62 - $39.43
Q2 2013
Shares 554,840 Value ($000) $22,294 Avg Close $35.20 Range $33.13 - $38.11