Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 6,123 | $469 | $75.03 | $70.10 - $79.81 |
| Q3 2025 | 9,679 | $747 | $82.49 | $73.21 - $89.37 |
| Q2 2025 | 36,861 | $3,100 | $86.03 | $78.60 - $94.32 |
| Q1 2025 | 34,303 | $3,250 | $103.54 | $91.98 - $114.58 |
| Q4 2024 | 11,627 | $1,280 | $111.62 | $104.73 - $124.78 |
| Q3 2024 | 2,208 | $250 | $113.17 | $101.07 - $129.81 |
| Q2 2024 | 2,885 | $357 | $121.30 | $115.10 - $129.23 |
| Q1 2024 | 1,628 | $210 | $117.37 | $110.33 - $126.78 |
| Q4 2023 | 8,655 | $1,067 | $102.52 | $91.88 - $121.65 |
| Q3 2023 | 7,553 | $772 | $100.32 | $93.27 - $107.44 |
| Q2 2023 | 7,303 | $734 | $95.78 | $88.08 - $103.21 |
| Q1 2023 | 12,491 | $1,282 | $102.60 | $90.19 - $110.59 |
| Q4 2022 | 9,793 | $1,007 | $96.50 | $78.79 - $110.27 |
| Q3 2022 | 7,506 | $643 | $89.51 | $80.19 - $98.62 |
| Q1 2022 | 4,327 | $400 | $89.19 | $83.58 - $94.67 |
| Q4 2021 | 3,275 | $296 | $82.93 | $76.29 - $89.94 |
| Q2 2021 | 2,879 | $261 | $92.53 | $83.80 - $100.29 |
| Q1 2021 | 3,302 | $339 | $92.10 | $80.91 - $99.72 |
| Q4 2020 | 6,459 | $586 | $71.95 | $57.19 - $85.43 |
| Q3 2020 | 20,572 | $1,303 | $68.67 | $56.85 - $78.17 |
| Q2 2020 | 3,536 | $273 | $67.35 | $57.02 - $79.77 |
| Q1 2020 | 14,461 | $1,005 | $83.79 | $52.02 - $98.93 |
| Q4 2019 | 2,133 | $221 | $87.47 | $77.84 - $97.70 |
| Q3 2019 | 11,512 | $1,026 | $81.78 | $74.31 - $88.66 |
| Q2 2019 | 9,416 | $859 | $76.63 | $71.16 - $83.47 |
| Q4 2018 | 11,488 | $709 | $62.18 | $48.12 - $70.66 |
| Q2 2018 | 3,619 | $277 | $67.39 | $59.37 - $73.05 |
| Q2 2017 | 16,565 | $1,086 | $57.04 | $53.20 - $62.50 |
| Q1 2017 | 12,900 | $835 | $59.26 | $51.41 - $66.19 |
| Q4 2016 | 43,035 | $2,948 | $56.82 | $47.94 - $64.99 |
| Q3 2016 | 14,344 | $872 | $48.99 | $39.67 - $53.81 |
| Q2 2016 | 7,144 | $329 | $41.52 | $37.19 - $44.47 |
| Q1 2016 | 30,944 | $1,342 | $40.40 | $36.39 - $46.84 |
| Q4 2015 | 69,900 | $3,796 | $48.12 | $40.31 - $52.05 |
| Q3 2015 | 48,761 | $2,268 | $39.87 | $35.73 - $44.30 |
| Q2 2015 | 25,036 | $1,128 | $38.87 | $36.94 - $40.69 |
| Q1 2015 | 23,845 | $1,106 | $37.07 | $33.21 - $40.57 |
| Q4 2014 | 7,366 | $315 | $35.30 | $30.04 - $40.52 |
| Q2 2014 | 6,396 | $276 | $36.87 | $34.10 - $39.69 |
| Q1 2014 | 4,884 | $221 | $37.58 | $34.73 - $40.51 |
| Q4 2013 | 5,838 | $270 | $38.90 | $36.04 - $42.14 |
| Q3 2013 | 9,000 | $420 | $36.35 | $33.62 - $39.43 |
| Q2 2013 | 18,959 | $762 | $35.20 | $33.13 - $38.11 |