Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 533,312 | $40,820 | $75.03 | $70.10 - $79.81 |
| Q3 2025 | 481,488 | $37,152 | $82.49 | $73.21 - $89.37 |
| Q2 2025 | 350,005 | $29,432 | $86.03 | $78.60 - $94.32 |
| Q1 2025 | 170,414 | $16,147 | $103.54 | $91.98 - $114.58 |
| Q4 2024 | 2,059 | $227 | $111.62 | $104.73 - $124.78 |
| Q3 2024 | 32,782 | $3,707 | $113.17 | $101.07 - $129.81 |
| Q2 2024 | 51,142 | $6,321 | $121.30 | $115.10 - $129.23 |
| Q1 2024 | 85,879 | $11,073 | $117.37 | $110.33 - $126.78 |
| Q4 2023 | 60,170 | $7,415 | $102.52 | $91.88 - $121.65 |
| Q3 2023 | 36,317 | $3,712 | $100.32 | $93.27 - $107.44 |
| Q2 2023 | 23,289 | $2,339 | $95.78 | $88.08 - $103.21 |
| Q1 2023 | 47,093 | $5 | $102.60 | $90.19 - $110.59 |
| Q4 2022 | 54,804 | $6 | $96.50 | $78.79 - $110.27 |
| Q3 2022 | 16,401 | $1,405 | $89.51 | $80.19 - $98.62 |
| Q2 2022 | 15,100 | $1,446 | $91.85 | $81.71 - $101.29 |
| Q4 2021 | 4,113 | $372 | $82.93 | $76.29 - $89.94 |
| Q3 2021 | 94,591 | $7,966 | $83.46 | $75.85 - $90.38 |
| Q2 2021 | 14,411 | $1,306 | $92.53 | $83.80 - $100.29 |
| Q3 2020 | 22,032 | $1,395 | $68.67 | $56.85 - $78.17 |
| Q4 2019 | 11,074 | $1,145 | $87.47 | $77.84 - $97.70 |
| Q3 2019 | 71,717 | $6,392 | $81.78 | $74.31 - $88.66 |
| Q2 2019 | 9,628 | $878 | $76.63 | $71.16 - $83.47 |
| Q1 2019 | 43,196 | $3,600 | $67.58 | $51.63 - $78.46 |
| Q4 2018 | 13,298 | $821 | $62.18 | $48.12 - $70.66 |
| Q3 2018 | 7,795 | $598 | $70.20 | $64.67 - $74.99 |
| Q2 2018 | 8,666 | $663 | $67.39 | $59.37 - $73.05 |
| Q1 2018 | 29,238 | $2,006 | $62.31 | $55.67 - $66.49 |
| Q4 2017 | 156,638 | $11,059 | $59.54 | $53.90 - $66.58 |
| Q3 2017 | 94,901 | $5,851 | $53.37 | $48.20 - $59.20 |
| Q1 2017 | 24,213 | $1,568 | $59.26 | $51.41 - $66.19 |
| Q3 2016 | 48,468 | $2,947 | $48.99 | $39.67 - $53.81 |
| Q2 2016 | 107,030 | $4,922 | $41.52 | $37.19 - $44.47 |
| Q1 2016 | 207,209 | $8,985 | $40.40 | $36.39 - $46.84 |
| Q2 2015 | 109,556 | $4,934 | $38.87 | $36.94 - $40.69 |
| Q1 2015 | 61,681 | $2,861 | $37.07 | $33.21 - $40.57 |
| Q4 2014 | 32,422 | $1,384 | $35.30 | $30.04 - $40.52 |
| Q3 2014 | 33,507 | $1,203 | $34.84 | $30.82 - $37.97 |
| Q2 2014 | 37,901 | $1,636 | $36.87 | $34.10 - $39.69 |
| Q1 2014 | 36,071 | $1,631 | $37.58 | $34.73 - $40.51 |
| Q4 2013 | 7,300 | $337 | $38.90 | $36.04 - $42.14 |
| Q3 2013 | 16,581 | $774 | $36.35 | $33.62 - $39.43 |
| Q2 2013 | 93,822 | $3,770 | $35.20 | $33.13 - $38.11 |