Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 3,461 | $265 | $75.03 | $70.10 - $79.81 |
| Q3 2025 | 13,542 | $1,045 | $82.49 | $73.21 - $89.37 |
| Q2 2025 | 17,253 | $1,451 | $86.03 | $78.60 - $94.32 |
| Q1 2025 | 28,194 | $2,671 | $103.54 | $91.98 - $114.58 |
| Q4 2024 | 27,554 | $3,033 | $111.62 | $104.73 - $124.78 |
| Q3 2024 | 23,976 | $2,711 | $113.17 | $101.07 - $129.81 |
| Q2 2024 | 23,274 | $2,876 | $121.30 | $115.10 - $129.23 |
| Q1 2024 | 24,154 | $3,114 | $117.37 | $110.33 - $126.78 |
| Q4 2023 | 24,110 | $2,971 | $102.52 | $91.88 - $121.65 |
| Q3 2023 | 22,868 | $2,337 | $100.32 | $93.27 - $107.44 |
| Q2 2023 | 12,309 | $1,236 | $95.78 | $88.08 - $103.21 |
| Q1 2023 | 8,380 | $860 | $102.60 | $90.19 - $110.59 |
| Q4 2022 | 7,735 | $796 | $96.50 | $78.79 - $110.27 |
| Q3 2022 | 7,383 | $633 | $89.51 | $80.19 - $98.62 |
| Q2 2022 | 6,817 | $653 | $91.85 | $81.71 - $101.29 |
| Q1 2022 | 4,397 | $407 | $89.19 | $83.58 - $94.67 |
| Q4 2021 | 3,811 | $344 | $82.93 | $76.29 - $89.94 |
| Q3 2021 | 3,075 | $259 | $83.46 | $75.85 - $90.38 |
| Q2 2021 | 2,765 | $251 | $92.53 | $83.80 - $100.29 |
| Q1 2021 | 2,697 | $277 | $92.10 | $80.91 - $99.72 |
| Q2 2018 | 10,351 | $792 | $67.39 | $59.37 - $73.05 |
| Q1 2018 | 10,351 | $710 | $62.31 | $55.67 - $66.49 |
| Q4 2017 | 10,436 | $737 | $59.54 | $53.90 - $66.58 |
| Q3 2017 | 10,368 | $639 | $53.37 | $48.20 - $59.20 |
| Q2 2017 | 10,663 | $698 | $57.04 | $53.20 - $62.50 |
| Q1 2017 | 11,156 | $722 | $59.26 | $51.41 - $66.19 |
| Q4 2016 | 11,159 | $765 | $56.82 | $47.94 - $64.99 |
| Q3 2016 | 1,719 | $105 | $48.99 | $39.67 - $53.81 |
| Q2 2016 | 11,703 | $538 | $41.52 | $37.19 - $44.47 |
| Q1 2016 | 12,122 | $526 | $40.40 | $36.39 - $46.84 |
| Q4 2015 | 12,825 | $697 | $48.12 | $40.31 - $52.05 |
| Q3 2015 | 12,676 | $590 | $39.87 | $35.73 - $44.30 |
| Q4 2014 | 67 | $3 | $35.30 | $30.04 - $40.52 |
| Q3 2014 | 67 | $2 | $34.84 | $30.82 - $37.97 |
| Q2 2014 | 67 | $3 | $36.87 | $34.10 - $39.69 |
| Q1 2014 | 94 | $4 | $37.58 | $34.73 - $40.51 |
| Q4 2013 | 94 | $4 | $38.90 | $36.04 - $42.14 |
| Q3 2013 | 27 | $1 | $36.35 | $33.62 - $39.43 |
| Q2 2013 | 27 | $1 | $35.20 | $33.13 - $38.11 |