Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 75,814 | $6 | $75.03 | $70.10 - $79.81 |
| Q3 2025 | 19,389 | $1 | $82.49 | $73.21 - $89.37 |
| Q2 2025 | 50,924 | $4 | $86.03 | $78.60 - $94.32 |
| Q1 2025 | 2,575 | $0 | $103.54 | $91.98 - $114.58 |
| Q4 2024 | 15,721 | $2 | $111.62 | $104.73 - $124.78 |
| Q3 2024 | 16,034 | $2 | $113.17 | $101.07 - $129.81 |
| Q2 2024 | 9,767 | $1 | $121.30 | $115.10 - $129.23 |
| Q1 2024 | 1,285 | $0 | $117.37 | $110.33 - $126.78 |
| Q4 2023 | 5,413 | $1 | $102.52 | $91.88 - $121.65 |
| Q3 2023 | 19,772 | $2 | $100.32 | $93.27 - $107.44 |
| Q1 2023 | 15,350 | $2 | $102.60 | $90.19 - $110.59 |
| Q4 2022 | 1,622 | $0 | $96.50 | $78.79 - $110.27 |
| Q3 2022 | 7,165 | $614 | $89.51 | $80.19 - $98.62 |
| Q2 2022 | 8,828 | $846 | $91.85 | $81.71 - $101.29 |
| Q4 2021 | 11,454 | $1,035 | $82.93 | $76.29 - $89.94 |
| Q3 2021 | 3,022 | $255 | $83.46 | $75.85 - $90.38 |
| Q2 2021 | 1,132 | $103 | $92.53 | $83.80 - $100.29 |
| Q1 2021 | 1,984 | $204 | $92.10 | $80.91 - $99.72 |
| Q4 2020 | 7,006 | $636 | $71.95 | $57.19 - $85.43 |
| Q3 2020 | 8,667 | $549 | $68.67 | $56.85 - $78.17 |
| Q2 2020 | 8,045 | $621 | $67.35 | $57.02 - $79.77 |
| Q1 2020 | 5,297 | $368 | $83.79 | $52.02 - $98.93 |
| Q4 2019 | 3,332 | $345 | $87.47 | $77.84 - $97.70 |
| Q3 2019 | 19,841 | $1,769 | $81.78 | $74.31 - $88.66 |
| Q2 2019 | 3,325 | $303 | $76.63 | $71.16 - $83.47 |
| Q1 2019 | 12,139 | $1,012 | $67.58 | $51.63 - $78.46 |
| Q4 2018 | 6,753 | $417 | $62.18 | $48.12 - $70.66 |
| Q3 2018 | 9,638 | $740 | $70.20 | $64.67 - $74.99 |
| Q2 2018 | 11,241 | $860 | $67.39 | $59.37 - $73.05 |
| Q1 2018 | 3,804 | $261 | $62.31 | $55.67 - $66.49 |
| Q3 2017 | 3,738 | $230 | $53.37 | $48.20 - $59.20 |
| Q2 2017 | 1,622 | $106 | $57.04 | $53.20 - $62.50 |
| Q4 2016 | 2,597 | $178 | $56.82 | $47.94 - $64.99 |
| Q3 2016 | 7,684 | $467 | $48.99 | $39.67 - $53.81 |
| Q2 2016 | 5,059 | $233 | $41.52 | $37.19 - $44.47 |
| Q3 2013 | 4,522 | $211 | $36.35 | $33.62 - $39.43 |