Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 3,042 | $233 | $75.03 | $70.10 - $79.81 |
| Q2 2022 | 2,450 | $235 | $91.85 | $81.71 - $101.29 |
| Q1 2022 | 3,414 | $316 | $89.19 | $83.58 - $94.67 |
| Q4 2021 | 2,748 | $248 | $82.93 | $76.29 - $89.94 |
| Q3 2021 | 2,539 | $214 | $83.46 | $75.85 - $90.38 |
| Q2 2021 | 3,096 | $282 | $92.53 | $83.80 - $100.29 |
| Q1 2021 | 2,951 | $303 | $92.10 | $80.91 - $99.72 |
| Q4 2020 | 2,570 | $233 | $71.95 | $57.19 - $85.43 |
| Q4 2019 | 2,639 | $273 | $87.47 | $77.84 - $97.70 |
| Q3 2019 | 2,547 | $227 | $81.78 | $74.31 - $88.66 |
| Q2 2019 | 2,472 | $226 | $76.63 | $71.16 - $83.47 |
| Q1 2019 | 2,611 | $218 | $67.58 | $51.63 - $78.46 |
| Q4 2018 | 3,444 | $213 | $62.18 | $48.12 - $70.66 |
| Q3 2018 | 4,224 | $324 | $70.20 | $64.67 - $74.99 |
| Q2 2018 | 4,747 | $363 | $67.39 | $59.37 - $73.05 |
| Q1 2018 | 4,452 | $305 | $62.31 | $55.67 - $66.49 |
| Q4 2017 | 3,666 | $259 | $59.54 | $53.90 - $66.58 |
| Q3 2017 | 3,704 | $228 | $53.37 | $48.20 - $59.20 |
| Q2 2017 | 4,050 | $265 | $57.04 | $53.20 - $62.50 |
| Q1 2017 | 4,699 | $304 | $59.26 | $51.41 - $66.19 |
| Q4 2016 | 6,065 | $415 | $56.82 | $47.94 - $64.99 |
| Q3 2016 | 3,510 | $213 | $48.99 | $39.67 - $53.81 |
| Q4 2015 | 4,743 | $258 | $48.12 | $40.31 - $52.05 |