Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 12,276 | $940 | $75.03 | $70.10 - $79.81 |
| Q3 2025 | 640,562 | $49,426 | $82.49 | $73.21 - $89.37 |
| Q2 2025 | 802,504 | $67,483 | $86.03 | $78.60 - $94.32 |
| Q1 2025 | 892,153 | $84,532 | $103.54 | $91.98 - $114.58 |
| Q4 2024 | 429,921 | $47,317 | $111.62 | $104.73 - $124.78 |
| Q3 2024 | 465,298 | $52,621 | $113.17 | $101.07 - $129.81 |
| Q2 2024 | 40,576 | $5,015 | $121.30 | $115.10 - $129.23 |
| Q1 2024 | 33,382 | $4,304 | $117.37 | $110.33 - $126.78 |
| Q4 2023 | 12,344 | $1,521 | $102.52 | $91.88 - $121.65 |
| Q3 2023 | 28,344 | $2,897 | $100.32 | $93.27 - $107.44 |
| Q2 2023 | 31,419 | $3,156 | $95.78 | $88.08 - $103.21 |
| Q1 2023 | 12,912 | $1,326 | $102.60 | $90.19 - $110.59 |
| Q4 2022 | 13,970 | $1,437 | $96.50 | $78.79 - $110.27 |
| Q3 2022 | 13,602 | $1,165 | $89.51 | $80.19 - $98.62 |
| Q2 2022 | 23,495 | $2,251 | $91.85 | $81.71 - $101.29 |
| Q1 2022 | 29,496 | $2,730 | $89.19 | $83.58 - $94.67 |
| Q4 2021 | 21,887 | $1,977 | $82.93 | $76.29 - $89.94 |
| Q3 2021 | 7,057 | $594 | $83.46 | $75.85 - $90.38 |
| Q2 2021 | 16,330 | $1,480 | $92.53 | $83.80 - $100.29 |
| Q1 2021 | 14,047 | $1,442 | $92.10 | $80.91 - $99.72 |
| Q4 2020 | 12,962 | $1,176 | $71.95 | $57.19 - $85.43 |
| Q3 2020 | 7,657 | $485 | $68.67 | $56.85 - $78.17 |
| Q2 2020 | 17,390 | $1,343 | $67.35 | $57.02 - $79.77 |
| Q1 2020 | 26,805 | $1,863 | $83.79 | $52.02 - $98.93 |
| Q4 2019 | 32,243 | $3,335 | $87.47 | $77.84 - $97.70 |
| Q3 2019 | 16,170 | $1,441 | $81.78 | $74.31 - $88.66 |
| Q2 2019 | 18,082 | $1,650 | $76.63 | $71.16 - $83.47 |
| Q1 2019 | 15,367 | $1,281 | $67.58 | $51.63 - $78.46 |
| Q4 2018 | 16,243 | $1,003 | $62.18 | $48.12 - $70.66 |
| Q3 2018 | 25,928 | $1,990 | $70.20 | $64.67 - $74.99 |
| Q2 2018 | 18,504 | $1,416 | $67.39 | $59.37 - $73.05 |
| Q1 2018 | 41,139 | $2,822 | $62.31 | $55.67 - $66.49 |
| Q4 2017 | 30,021 | $2,119 | $59.54 | $53.90 - $66.58 |
| Q3 2017 | 32,447 | $2,000 | $53.37 | $48.20 - $59.20 |
| Q2 2017 | 23,927 | $1,568 | $57.04 | $53.20 - $62.50 |
| Q1 2017 | 30,043 | $1,945 | $59.26 | $51.41 - $66.19 |
| Q4 2016 | 32,970 | $2,258 | $56.82 | $47.94 - $64.99 |
| Q3 2016 | 38,557 | $2,345 | $48.99 | $39.67 - $53.81 |
| Q2 2016 | 50,726 | $2,333 | $41.52 | $37.19 - $44.47 |
| Q1 2016 | 39,442 | $1,710 | $40.40 | $36.39 - $46.84 |
| Q4 2015 | 47,706 | $2,591 | $48.12 | $40.31 - $52.05 |