Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 94,535 | $7,236 | $75.03 | $70.10 - $79.81 |
| Q3 2025 | 44,830 | $3,459 | $82.49 | $73.21 - $89.37 |
| Q2 2025 | 39,420 | $3,315 | $86.03 | $78.60 - $94.32 |
| Q1 2025 | 46,311 | $4,388 | $103.54 | $91.98 - $114.58 |
| Q4 2024 | 43,426 | $4,779 | $111.62 | $104.73 - $124.78 |
| Q3 2024 | 43,147 | $4,879 | $113.17 | $101.07 - $129.81 |
| Q2 2024 | 41,643 | $5,147 | $121.30 | $115.10 - $129.23 |
| Q1 2024 | 40,531 | $5,225 | $117.37 | $110.33 - $126.78 |
| Q4 2023 | 41,936 | $5,168 | $102.52 | $91.88 - $121.65 |
| Q3 2023 | 39,821 | $4,070 | $100.32 | $93.27 - $107.44 |
| Q2 2023 | 39,150 | $3,932 | $95.78 | $88.08 - $103.21 |
| Q1 2023 | 40,188 | $4,126 | $102.60 | $90.19 - $110.59 |
| Q4 2022 | 41,966 | $4,317 | $96.50 | $78.79 - $110.27 |
| Q3 2022 | 41,549 | $3,560 | $89.51 | $80.19 - $98.62 |
| Q2 2022 | 38,636 | $3,701 | $91.85 | $81.71 - $101.29 |
| Q1 2022 | 34,913 | $3,231 | $89.19 | $83.58 - $94.67 |
| Q4 2021 | 32,058 | $2,896 | $82.93 | $76.29 - $89.94 |
| Q3 2021 | 30,108 | $2,536 | $83.46 | $75.85 - $90.38 |
| Q2 2021 | 27,533 | $2,495 | $92.53 | $83.80 - $100.29 |
| Q1 2021 | 25,248 | $2,593 | $92.10 | $80.91 - $99.72 |
| Q4 2020 | 42,632 | $3,868 | $71.95 | $57.19 - $85.43 |
| Q3 2020 | 42,268 | $2,676 | $68.67 | $56.85 - $78.17 |
| Q2 2020 | 44,304 | $3,422 | $67.35 | $57.02 - $79.77 |
| Q1 2020 | 46,614 | $3,239 | $83.79 | $52.02 - $98.93 |
| Q4 2019 | 44,669 | $4,621 | $87.47 | $77.84 - $97.70 |
| Q3 2019 | 48,364 | $4,311 | $81.78 | $74.31 - $88.66 |
| Q2 2019 | 54,657 | $4,987 | $76.63 | $71.16 - $83.47 |
| Q1 2019 | 54,035 | $4,504 | $67.58 | $51.63 - $78.46 |
| Q4 2018 | 55,249 | $3,412 | $62.18 | $48.12 - $70.66 |
| Q3 2018 | 58,109 | $4,460 | $70.20 | $64.67 - $74.99 |
| Q2 2018 | 62,164 | $4,759 | $67.39 | $59.37 - $73.05 |
| Q1 2018 | 63,599 | $4,363 | $62.31 | $55.67 - $66.49 |
| Q4 2017 | 64,764 | $4,572 | $59.54 | $53.90 - $66.58 |
| Q3 2017 | 65,614 | $4,045 | $53.37 | $48.20 - $59.20 |
| Q2 2017 | 65,319 | $4,282 | $57.04 | $53.20 - $62.50 |
| Q1 2017 | 40,074 | $2,595 | $59.26 | $51.41 - $66.19 |
| Q4 2016 | 40,344 | $2,763 | $56.82 | $47.94 - $64.99 |
| Q3 2016 | 40,959 | $2,491 | $48.99 | $39.67 - $53.81 |
| Q2 2016 | 44,554 | $2,049 | $41.52 | $37.19 - $44.47 |
| Q1 2016 | 44,300 | $1,920 | $40.40 | $36.39 - $46.84 |
| Q4 2015 | 44,390 | $2,411 | $48.12 | $40.31 - $52.05 |
| Q3 2015 | 44,820 | $2,085 | $39.87 | $35.73 - $44.30 |
| Q2 2015 | 43,685 | $1,968 | $38.87 | $36.94 - $40.69 |