Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 5,589 | $428 | $75.03 | $70.10 - $79.81 |
| Q3 2025 | 5,567 | $430 | $82.49 | $73.21 - $89.37 |
| Q2 2025 | 5,552 | $467 | $86.03 | $78.60 - $94.32 |
| Q1 2025 | 4,643 | $440 | $103.54 | $91.98 - $114.58 |
| Q4 2024 | 2,729 | $300 | $111.62 | $104.73 - $124.78 |
| Q3 2024 | 2,448 | $277 | $113.17 | $101.07 - $129.81 |
| Q3 2020 | 4,983 | $316 | $68.67 | $56.85 - $78.17 |
| Q2 2020 | 4,813 | $372 | $67.35 | $57.02 - $79.77 |
| Q1 2020 | 3,655 | $254 | $83.79 | $52.02 - $98.93 |
| Q4 2019 | 5,300 | $548 | $87.47 | $77.84 - $97.70 |
| Q4 2018 | 3,376 | $209 | $62.18 | $48.12 - $70.66 |
| Q1 2018 | 7,306 | $501 | $62.31 | $55.67 - $66.49 |
| Q4 2017 | 8,688 | $613 | $59.54 | $53.90 - $66.58 |
| Q3 2017 | 8,484 | $524 | $53.37 | $48.20 - $59.20 |
| Q2 2017 | 7,699 | $506 | $57.04 | $53.20 - $62.50 |
| Q1 2017 | 8,640 | $558 | $59.26 | $51.41 - $66.19 |
| Q4 2016 | 9,399 | $643 | $56.82 | $47.94 - $64.99 |
| Q3 2016 | 23,359 | $1,420 | $48.99 | $39.67 - $53.81 |
| Q2 2016 | 26,434 | $1,216 | $41.52 | $37.19 - $44.47 |
| Q1 2016 | 27,693 | $1,201 | $40.40 | $36.39 - $46.84 |
| Q4 2015 | 52,871 | $2,871 | $48.12 | $40.31 - $52.05 |
| Q3 2015 | 34,668 | $1,612 | $39.87 | $35.73 - $44.30 |