Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 19,665 | $1,505 | $75.03 | $70.10 - $79.81 |
| Q3 2025 | 41,030 | $3,166 | $82.49 | $73.21 - $89.37 |
| Q2 2025 | 16,395 | $1,379 | $86.03 | $78.60 - $94.32 |
| Q1 2025 | 19,710 | $1,868 | $103.54 | $91.98 - $114.58 |
| Q4 2024 | 21,983 | $2,419 | $111.62 | $104.73 - $124.78 |
| Q3 2024 | 13,697 | $1,549 | $113.17 | $101.07 - $129.81 |
| Q2 2024 | 11,492 | $1,420 | $121.30 | $115.10 - $129.23 |
| Q1 2024 | 13,603 | $1,754 | $117.37 | $110.33 - $126.78 |
| Q4 2023 | 13,453 | $1,658 | $102.52 | $91.88 - $121.65 |
| Q3 2023 | 13,342 | $1,364 | $100.32 | $93.27 - $107.44 |
| Q2 2023 | 11,743 | $1,179 | $95.78 | $88.08 - $103.21 |
| Q1 2023 | 17,752 | $1,823 | $102.60 | $90.19 - $110.59 |
| Q4 2022 | 12,674 | $1,304 | $96.50 | $78.79 - $110.27 |
| Q3 2022 | 11,384 | $975 | $89.51 | $80.19 - $98.62 |
| Q2 2022 | 13,607 | $1,304 | $91.85 | $81.71 - $101.29 |
| Q1 2022 | 15,006 | $1,389 | $89.19 | $83.58 - $94.67 |
| Q4 2021 | 17,254 | $1,559 | $82.93 | $76.29 - $89.94 |
| Q3 2021 | 18,784 | $1,582 | $83.46 | $75.85 - $90.38 |
| Q2 2021 | 16,991 | $1,540 | $92.53 | $83.80 - $100.29 |
| Q1 2021 | 32,580 | $3,345 | $92.10 | $80.91 - $99.72 |
| Q4 2020 | 42,320 | $3,840 | $71.95 | $57.19 - $85.43 |
| Q3 2020 | 37,592 | $2,380 | $68.67 | $56.85 - $78.17 |
| Q2 2020 | 115,532 | $8,924 | $67.35 | $57.02 - $79.77 |
| Q1 2020 | 25,854 | $1,797 | $83.79 | $52.02 - $98.93 |
| Q4 2019 | 24,656 | $2,549 | $87.47 | $77.84 - $97.70 |
| Q3 2019 | 33,046 | $2,942 | $81.78 | $74.31 - $88.66 |
| Q2 2019 | 39,374 | $3,588 | $76.63 | $71.16 - $83.47 |
| Q1 2019 | 55,057 | $4,586 | $67.58 | $51.63 - $78.46 |
| Q4 2018 | 67,807 | $4,186 | $62.18 | $48.12 - $70.66 |
| Q3 2018 | 52,817 | $4,052 | $70.20 | $64.67 - $74.99 |
| Q2 2018 | 40,155 | $3,072 | $67.39 | $59.37 - $73.05 |
| Q1 2018 | 106,673 | $7,316 | $62.31 | $55.67 - $66.49 |
| Q4 2017 | 60,113 | $4,241 | $59.54 | $53.90 - $66.58 |
| Q3 2017 | 53,897 | $3,321 | $53.37 | $48.20 - $59.20 |
| Q2 2017 | 49,672 | $3,254 | $57.04 | $53.20 - $62.50 |
| Q1 2017 | 69,063 | $4,470 | $59.26 | $51.41 - $66.19 |
| Q4 2016 | 20,356 | $1,393 | $56.82 | $47.94 - $64.99 |
| Q3 2016 | 45,658 | $2,774 | $48.99 | $39.67 - $53.81 |
| Q2 2016 | 70,208 | $3,227 | $41.52 | $37.19 - $44.47 |
| Q1 2016 | 119,209 | $5,167 | $40.40 | $36.39 - $46.84 |
| Q4 2015 | 56,615 | $3,073 | $48.12 | $40.31 - $52.05 |
| Q3 2015 | 62,489 | $2,905 | $39.87 | $35.73 - $44.30 |
| Q2 2015 | 132,883 | $5,984 | $38.87 | $36.94 - $40.69 |
| Q1 2015 | 44,789 | $2,077 | $37.07 | $33.21 - $40.57 |
| Q4 2014 | 27,267 | $1,163 | $35.30 | $30.04 - $40.52 |
| Q3 2014 | 19,412 | $696 | $34.84 | $30.82 - $37.97 |
| Q2 2014 | 5,613 | $241 | $36.87 | $34.10 - $39.69 |
| Q1 2014 | 21,256 | $960 | $37.58 | $34.73 - $40.51 |
| Q4 2013 | 12,848 | $593 | $38.90 | $36.04 - $42.14 |
| Q3 2013 | 40,308 | $1,879 | $36.35 | $33.62 - $39.43 |