Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 17,422 | $1 | $75.03 | $70.10 - $79.81 |
| Q3 2025 | 28,274 | $2 | $82.49 | $73.21 - $89.37 |
| Q2 2025 | 19,300 | $2 | $86.03 | $78.60 - $94.32 |
| Q4 2024 | 4,989 | $1 | $111.62 | $104.73 - $124.78 |
| Q2 2024 | 11,985 | $1 | $121.30 | $115.10 - $129.23 |
| Q1 2024 | 14,071 | $2 | $117.37 | $110.33 - $126.78 |
| Q4 2023 | 16,767 | $2 | $102.52 | $91.88 - $121.65 |
| Q3 2023 | 19,351 | $2 | $100.32 | $93.27 - $107.44 |
| Q1 2023 | 7,282 | $1 | $102.60 | $90.19 - $110.59 |
| Q4 2022 | 7,163 | $1 | $96.50 | $78.79 - $110.27 |
| Q3 2022 | 7,281 | $624 | $89.51 | $80.19 - $98.62 |
| Q3 2021 | 3,987 | $336 | $83.46 | $75.85 - $90.38 |
| Q4 2019 | 5,707 | $590 | $87.47 | $77.84 - $97.70 |
| Q3 2019 | 9,133 | $814 | $81.78 | $74.31 - $88.66 |
| Q4 2018 | 8,137 | $503 | $62.18 | $48.12 - $70.66 |
| Q3 2018 | 2,781 | $213 | $70.20 | $64.67 - $74.99 |
| Q1 2018 | 27,542 | $1,889 | $62.31 | $55.67 - $66.49 |
| Q4 2017 | 5,360 | $378 | $59.54 | $53.90 - $66.58 |
| Q3 2017 | 28,376 | $1,749 | $53.37 | $48.20 - $59.20 |
| Q2 2017 | 6,975 | $457 | $57.04 | $53.20 - $62.50 |
| Q1 2017 | 7,642 | $495 | $59.26 | $51.41 - $66.19 |
| Q4 2016 | 3,799 | $260 | $56.82 | $47.94 - $64.99 |
| Q3 2016 | 11,522 | $701 | $48.99 | $39.67 - $53.81 |
| Q2 2016 | 24,524 | $1,128 | $41.52 | $37.19 - $44.47 |
| Q1 2016 | 8,008 | $347 | $40.40 | $36.39 - $46.84 |
| Q4 2015 | 7,199 | $391 | $48.12 | $40.31 - $52.05 |
| Q3 2015 | 27,657 | $1,286 | $39.87 | $35.73 - $44.30 |
| Q2 2015 | 7,814 | $352 | $38.87 | $36.94 - $40.69 |
| Q1 2015 | 11,608 | $538 | $37.07 | $33.21 - $40.57 |
| Q4 2013 | 9,357 | $432 | $38.90 | $36.04 - $42.14 |
| Q3 2013 | 10,918 | $509 | $36.35 | $33.62 - $39.43 |
| Q2 2013 | 10,957 | $440 | $35.20 | $33.13 - $38.11 |