Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 11,628 | $890 | $75.03 | $70.10 - $79.81 |
| Q3 2025 | 7,114 | $549 | $82.49 | $73.21 - $89.37 |
| Q2 2025 | 5,348 | $450 | $86.03 | $78.60 - $94.32 |
| Q1 2025 | 4,995 | $473 | $103.54 | $91.98 - $114.58 |
| Q4 2024 | 4,242 | $467 | $111.62 | $104.73 - $124.78 |
| Q3 2024 | 4,220 | $477 | $113.17 | $101.07 - $129.81 |
| Q2 2024 | 4,201 | $519 | $121.30 | $115.10 - $129.23 |
| Q1 2024 | 4,761 | $614 | $117.37 | $110.33 - $126.78 |
| Q4 2023 | 7,365 | $908 | $102.52 | $91.88 - $121.65 |
| Q3 2023 | 10,096 | $1,032 | $100.32 | $93.27 - $107.44 |
| Q2 2023 | 10,297 | $1,034 | $95.78 | $88.08 - $103.21 |
| Q1 2023 | 10,887 | $1,116 | $102.60 | $90.19 - $110.59 |
| Q4 2022 | 5,229 | $539 | $96.50 | $78.79 - $110.27 |
| Q3 2022 | 5,004 | $427 | $89.51 | $80.19 - $98.62 |
| Q2 2022 | 6,760 | $644 | $91.85 | $81.71 - $101.29 |
| Q1 2022 | 5,917 | $548 | $89.19 | $83.58 - $94.67 |
| Q4 2021 | 6,061 | $546 | $82.93 | $76.29 - $89.94 |
| Q3 2021 | 17,130 | $1,441 | $83.46 | $75.85 - $90.38 |
| Q2 2021 | 10,279 | $930 | $92.53 | $83.80 - $100.29 |
| Q1 2021 | 6,479 | $664 | $92.10 | $80.91 - $99.72 |
| Q4 2020 | 9,823 | $891 | $71.95 | $57.19 - $85.43 |
| Q3 2020 | 39,243 | $2,484 | $68.67 | $56.85 - $78.17 |
| Q2 2020 | 22,643 | $1,748 | $67.35 | $57.02 - $79.77 |
| Q1 2020 | 23,007 | $1,597 | $83.79 | $52.02 - $98.93 |
| Q4 2019 | 20,811 | $2,151 | $87.47 | $77.84 - $97.70 |
| Q3 2019 | 32,814 | $2,925 | $81.78 | $74.31 - $88.66 |
| Q2 2019 | 21,208 | $1,933 | $76.63 | $71.16 - $83.47 |
| Q1 2019 | 5,850 | $488 | $67.58 | $51.63 - $78.46 |
| Q4 2018 | 4,830 | $298 | $62.18 | $48.12 - $70.66 |
| Q3 2018 | 20,172 | $1,547 | $70.20 | $64.67 - $74.99 |
| Q2 2018 | 20,992 | $1,608 | $67.39 | $59.37 - $73.05 |
| Q1 2018 | 4,910 | $337 | $62.31 | $55.67 - $66.49 |
| Q4 2017 | 4,910 | $347 | $59.54 | $53.90 - $66.58 |
| Q3 2017 | 5,040 | $311 | $53.37 | $48.20 - $59.20 |
| Q2 2017 | 25,615 | $1,679 | $57.04 | $53.20 - $62.50 |
| Q1 2017 | 50,604 | $3,276 | $59.26 | $51.41 - $66.19 |
| Q4 2016 | 55,026 | $3,836 | $56.82 | $47.94 - $64.99 |