Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 72,694 | $5,564 | $75.03 | $70.10 - $79.81 |
| Q3 2025 | 83,389 | $6,434 | $82.49 | $73.21 - $89.37 |
| Q2 2025 | 94,576 | $7,953 | $86.03 | $78.60 - $94.32 |
| Q1 2025 | 75,144 | $7,120 | $103.54 | $91.98 - $114.58 |
| Q4 2024 | 25,423 | $2,798 | $111.62 | $104.73 - $124.78 |
| Q3 2024 | 21,470 | $2,428 | $113.17 | $101.07 - $129.81 |
| Q2 2024 | 21,930 | $2,710 | $121.30 | $115.10 - $129.23 |
| Q1 2024 | 7,406 | $955 | $117.37 | $110.33 - $126.78 |
| Q3 2023 | 2,005 | $205 | $100.32 | $93.27 - $107.44 |
| Q1 2023 | 3,351 | $344 | $102.60 | $90.19 - $110.59 |
| Q4 2022 | 27,926 | $2,872 | $96.50 | $78.79 - $110.27 |
| Q3 2022 | 3,457 | $296 | $89.51 | $80.19 - $98.62 |
| Q2 2022 | 12,377 | $1,185 | $91.85 | $81.71 - $101.29 |
| Q1 2022 | 11,554 | $1,069 | $89.19 | $83.58 - $94.67 |
| Q4 2021 | 5,869 | $530 | $82.93 | $76.29 - $89.94 |
| Q3 2021 | 43,610 | $3,673 | $83.46 | $75.85 - $90.38 |
| Q2 2021 | 19,018 | $1,724 | $92.53 | $83.80 - $100.29 |
| Q1 2021 | 4,801 | $493 | $92.10 | $80.91 - $99.72 |
| Q4 2020 | 17,012 | $1,544 | $71.95 | $57.19 - $85.43 |
| Q3 2020 | 39,674 | $2,512 | $68.67 | $56.85 - $78.17 |
| Q2 2020 | 47,348 | $3,658 | $67.35 | $57.02 - $79.77 |
| Q1 2020 | 18,529 | $1,288 | $83.79 | $52.02 - $98.93 |
| Q4 2019 | 5,049 | $523 | $87.47 | $77.84 - $97.70 |
| Q3 2019 | 34,305 | $3,058 | $81.78 | $74.31 - $88.66 |
| Q2 2019 | 25,889 | $2,362 | $76.63 | $71.16 - $83.47 |
| Q1 2019 | 10,641 | $887 | $67.58 | $51.63 - $78.46 |
| Q4 2018 | 15,662 | $967 | $62.18 | $48.12 - $70.66 |
| Q3 2018 | 9,841 | $755 | $70.20 | $64.67 - $74.99 |
| Q2 2018 | 8,586 | $657 | $67.39 | $59.37 - $73.05 |
| Q1 2018 | 13,503 | $926 | $62.31 | $55.67 - $66.49 |
| Q4 2017 | 28,813 | $2,034 | $59.54 | $53.90 - $66.58 |
| Q3 2017 | 38,217 | $2,356 | $53.37 | $48.20 - $59.20 |
| Q2 2017 | 12,799 | $839 | $57.04 | $53.20 - $62.50 |
| Q4 2016 | 9,062 | $621 | $56.82 | $47.94 - $64.99 |
| Q3 2016 | 4,034 | $245 | $48.99 | $39.67 - $53.81 |
| Q2 2016 | 16,648 | $766 | $41.52 | $37.19 - $44.47 |
| Q4 2015 | 1,796 | $98 | $48.12 | $40.31 - $52.05 |
| Q2 2015 | 49,963 | $2,250 | $38.87 | $36.94 - $40.69 |
| Q1 2015 | 39,307 | $1,823 | $37.07 | $33.21 - $40.57 |
| Q4 2014 | 11,439 | $488 | $35.30 | $30.04 - $40.52 |
| Q3 2014 | 755 | $27 | $34.84 | $30.82 - $37.97 |
| Q2 2014 | 3,724 | $161 | $36.87 | $34.10 - $39.69 |
| Q1 2014 | 14,197 | $642 | $37.58 | $34.73 - $40.51 |
| Q4 2013 | 14,265 | $660 | $38.90 | $36.04 - $42.14 |
| Q3 2013 | 23,976 | $1,119 | $36.35 | $33.62 - $39.43 |
| Q2 2013 | 61,990 | $2,491 | $35.20 | $33.13 - $38.11 |