Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 305,977 | $23,420 | $75.03 | $70.10 - $79.81 |
| Q3 2025 | 349,972 | $27,004 | $82.49 | $73.21 - $89.37 |
| Q2 2025 | 426,544 | $35,868 | $86.03 | $78.60 - $94.32 |
| Q1 2025 | 329,415 | $31,212 | $103.54 | $91.98 - $114.58 |
| Q4 2020 | 2,280 | $207 | $71.95 | $57.19 - $85.43 |
| Q4 2019 | 2,249 | $233 | $87.47 | $77.84 - $97.70 |
| Q3 2019 | 3,327 | $297 | $81.78 | $74.31 - $88.66 |
| Q2 2019 | 3,327 | $304 | $76.63 | $71.16 - $83.47 |
| Q1 2019 | 3,307 | $276 | $67.58 | $51.63 - $78.46 |
| Q4 2018 | 4,540 | $280 | $62.18 | $48.12 - $70.66 |
| Q3 2018 | 4,512 | $346 | $70.20 | $64.67 - $74.99 |
| Q2 2018 | 4,512 | $345 | $67.39 | $59.37 - $73.05 |
| Q1 2018 | 4,486 | $308 | $62.31 | $55.67 - $66.49 |
| Q4 2017 | 6,033 | $426 | $59.54 | $53.90 - $66.58 |
| Q3 2017 | 6,000 | $370 | $53.37 | $48.20 - $59.20 |
| Q2 2017 | 6,000 | $393 | $57.04 | $53.20 - $62.50 |
| Q1 2017 | 6,000 | $388 | $59.26 | $51.41 - $66.19 |
| Q2 2014 | 4,675 | $202 | $36.87 | $34.10 - $39.69 |
| Q3 2013 | 5,375 | $251 | $36.35 | $33.62 - $39.43 |
| Q2 2013 | 5,325 | $214 | $35.20 | $33.13 - $38.11 |