Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 5,631 | $431 | $75.03 | $70.10 - $79.81 |
| Q3 2025 | 5,631 | $434 | $82.49 | $73.21 - $89.37 |
| Q2 2025 | 5,731 | $482 | $86.03 | $78.60 - $94.32 |
| Q1 2025 | 5,731 | $543 | $103.54 | $91.98 - $114.58 |
| Q4 2024 | 5,900 | $649 | $111.62 | $104.73 - $124.78 |
| Q3 2024 | 5,900 | $667 | $113.17 | $101.07 - $129.81 |
| Q2 2024 | 6,055 | $748 | $121.30 | $115.10 - $129.23 |
| Q1 2024 | 6,655 | $858 | $117.37 | $110.33 - $126.78 |
| Q4 2023 | 7,255 | $894 | $102.52 | $91.88 - $121.65 |
| Q3 2023 | 7,355 | $752 | $100.32 | $93.27 - $107.44 |
| Q2 2023 | 7,795 | $783 | $95.78 | $88.08 - $103.21 |
| Q1 2023 | 7,995 | $821 | $102.60 | $90.19 - $110.59 |
| Q4 2022 | 8,244 | $848 | $96.50 | $78.79 - $110.27 |
| Q3 2022 | 8,182 | $701 | $89.51 | $80.19 - $98.62 |
| Q2 2022 | 8,182 | $784 | $91.85 | $81.71 - $101.29 |
| Q1 2022 | 9,382 | $868 | $89.19 | $83.58 - $94.67 |
| Q4 2021 | 9,582 | $866 | $82.93 | $76.29 - $89.94 |
| Q3 2021 | 9,982 | $841 | $83.46 | $75.85 - $90.38 |
| Q2 2021 | 10,104 | $916 | $92.53 | $83.80 - $100.29 |
| Q1 2021 | 10,104 | $1,038 | $92.10 | $80.91 - $99.72 |
| Q4 2020 | 9,904 | $899 | $71.95 | $57.19 - $85.43 |
| Q3 2020 | 10,059 | $637 | $68.67 | $56.85 - $78.17 |
| Q2 2020 | 9,859 | $762 | $67.35 | $57.02 - $79.77 |
| Q1 2020 | 9,859 | $685 | $83.79 | $52.02 - $98.93 |
| Q4 2019 | 9,659 | $999 | $87.47 | $77.84 - $97.70 |
| Q3 2019 | 9,659 | $861 | $81.78 | $74.31 - $88.66 |
| Q2 2019 | 9,659 | $881 | $76.63 | $71.16 - $83.47 |
| Q1 2019 | 9,459 | $788 | $67.58 | $51.63 - $78.46 |
| Q4 2018 | 9,288 | $574 | $62.18 | $48.12 - $70.66 |