Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 87,921 | $6,729 | $75.03 | $70.10 - $79.81 |
| Q3 2025 | 75,695 | $5,841 | $82.49 | $73.21 - $89.37 |
| Q2 2025 | 77,255 | $6,496 | $86.03 | $78.60 - $94.32 |
| Q1 2025 | 3,633 | $344 | $103.54 | $91.98 - $114.58 |
| Q4 2024 | 3,779 | $416 | $111.62 | $104.73 - $124.78 |
| Q3 2024 | 3,752 | $424 | $113.17 | $101.07 - $129.81 |
| Q2 2024 | 4,099 | $507 | $121.30 | $115.10 - $129.23 |
| Q1 2024 | 4,284 | $552 | $117.37 | $110.33 - $126.78 |
| Q4 2023 | 4,352 | $536 | $102.52 | $91.88 - $121.65 |
| Q3 2023 | 34,372 | $3,513 | $100.32 | $93.27 - $107.44 |
| Q2 2023 | 50,650 | $5,087 | $95.78 | $88.08 - $103.21 |
| Q1 2023 | 54,388 | $5,584 | $102.60 | $90.19 - $110.59 |
| Q4 2022 | 67,508 | $6,944 | $96.50 | $78.79 - $110.27 |
| Q3 2022 | 56,135 | $4,809 | $89.51 | $80.19 - $98.62 |
| Q2 2022 | 48,636 | $4,659 | $91.85 | $81.71 - $101.29 |
| Q1 2022 | 3,551 | $329 | $89.19 | $83.58 - $94.67 |
| Q4 2021 | 3,367 | $304 | $82.93 | $76.29 - $89.94 |
| Q3 2021 | 3,286 | $277 | $83.46 | $75.85 - $90.38 |
| Q2 2021 | 3,498 | $317 | $92.53 | $83.80 - $100.29 |
| Q1 2021 | 49,015 | $5,033 | $92.10 | $80.91 - $99.72 |
| Q4 2020 | 51,620 | $4,683 | $71.95 | $57.19 - $85.43 |
| Q3 2020 | 52,585 | $3,330 | $68.67 | $56.85 - $78.17 |
| Q2 2020 | 58,874 | $4,548 | $67.35 | $57.02 - $79.77 |
| Q1 2020 | 38,046 | $2,644 | $83.79 | $52.02 - $98.93 |
| Q4 2019 | 36,632 | $3,789 | $87.47 | $77.84 - $97.70 |
| Q3 2019 | 36,909 | $3,290 | $81.78 | $74.31 - $88.66 |
| Q2 2019 | 878 | $80 | $76.63 | $71.16 - $83.47 |
| Q1 2019 | 697 | $58 | $67.58 | $51.63 - $78.46 |
| Q4 2018 | 602 | $37 | $62.18 | $48.12 - $70.66 |
| Q3 2018 | 464 | $36 | $70.20 | $64.67 - $74.99 |
| Q2 2018 | 90 | $7 | $67.39 | $59.37 - $73.05 |
| Q3 2017 | 750 | $46 | $53.37 | $48.20 - $59.20 |
| Q2 2017 | 750 | $49 | $57.04 | $53.20 - $62.50 |
| Q1 2017 | 750 | $49 | $59.26 | $51.41 - $66.19 |
| Q4 2016 | 750 | $51 | $56.82 | $47.94 - $64.99 |
| Q3 2016 | 750 | $46 | $48.99 | $39.67 - $53.81 |
| Q2 2016 | 750 | $34 | $41.52 | $37.19 - $44.47 |
| Q1 2016 | 750 | $33 | $40.40 | $36.39 - $46.84 |
| Q4 2015 | 750 | $41 | $48.12 | $40.31 - $52.05 |
| Q3 2013 | 740 | $35 | $36.35 | $33.62 - $39.43 |