Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 3,425 | $262 | $75.03 | $70.10 - $79.81 |
| Q3 2025 | 6,238 | $481 | $82.49 | $73.21 - $89.37 |
| Q2 2025 | 3,225 | $271 | $86.03 | $78.60 - $94.32 |
| Q1 2022 | 48 | $4 | $89.19 | $83.58 - $94.67 |
| Q3 2021 | 104 | $9 | $83.46 | $75.85 - $90.38 |
| Q2 2021 | 94 | $9 | $92.53 | $83.80 - $100.29 |
| Q1 2021 | 94 | $10 | $92.10 | $80.91 - $99.72 |
| Q4 2020 | 3 | $0 | $71.95 | $57.19 - $85.43 |
| Q3 2020 | 3 | $0 | $68.67 | $56.85 - $78.17 |
| Q2 2020 | 3 | $0 | $67.35 | $57.02 - $79.77 |
| Q1 2020 | 1,367 | $95 | $83.79 | $52.02 - $98.93 |
| Q4 2019 | 2,763 | $286 | $87.47 | $77.84 - $97.70 |
| Q3 2019 | 3,734 | $334 | $81.78 | $74.31 - $88.66 |
| Q2 2019 | 943 | $86 | $76.63 | $71.16 - $83.47 |
| Q1 2019 | 486 | $41 | $67.58 | $51.63 - $78.46 |
| Q4 2018 | 486 | $30 | $62.18 | $48.12 - $70.66 |
| Q3 2018 | 486 | $37 | $70.20 | $64.67 - $74.99 |
| Q2 2018 | 436 | $33,376 | $67.39 | $59.37 - $73.05 |
| Q1 2018 | 251 | $17 | $62.31 | $55.67 - $66.49 |
| Q4 2017 | 251 | $18 | $59.54 | $53.90 - $66.58 |
| Q1 2017 | 496 | $32 | $59.26 | $51.41 - $66.19 |
| Q4 2016 | 5,034 | $345 | $56.82 | $47.94 - $64.99 |