Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 142,055 | $10,873 | $75.03 | $70.10 - $79.81 |
| Q3 2025 | 165,047 | $12,735 | $82.49 | $73.21 - $89.37 |
| Q2 2025 | 106,269 | $8,936 | $86.03 | $78.60 - $94.32 |
| Q1 2025 | 81,865 | $7,757 | $103.54 | $91.98 - $114.58 |
| Q4 2024 | 84,672 | $9,319 | $111.62 | $104.73 - $124.78 |
| Q3 2024 | 16,543 | $1,871 | $113.17 | $101.07 - $129.81 |
| Q2 2024 | 15,087 | $1,865 | $121.30 | $115.10 - $129.23 |
| Q1 2024 | 68,716 | $8,860 | $117.37 | $110.33 - $126.78 |
| Q4 2023 | 57,410 | $7,075 | $102.52 | $91.88 - $121.65 |
| Q3 2023 | 28 | $3 | $100.32 | $93.27 - $107.44 |
| Q2 2023 | 15,503 | $1,557 | $95.78 | $88.08 - $103.21 |
| Q1 2023 | 11,890 | $1,221 | $102.60 | $90.19 - $110.59 |
| Q4 2022 | 7,002 | $720 | $96.50 | $78.79 - $110.27 |
| Q3 2022 | 1,009 | $86 | $89.51 | $80.19 - $98.62 |
| Q2 2022 | 588 | $56 | $91.85 | $81.71 - $101.29 |
| Q1 2022 | 4,385 | $405 | $89.19 | $83.58 - $94.67 |
| Q4 2021 | 15,562 | $1,406 | $82.93 | $76.29 - $89.94 |
| Q3 2021 | 6,484 | $545 | $83.46 | $75.85 - $90.38 |
| Q2 2021 | 13,848 | $1,255 | $92.53 | $83.80 - $100.29 |
| Q1 2021 | 11,083 | $1,138 | $92.10 | $80.91 - $99.72 |
| Q4 2020 | 28,327 | $2,570 | $71.95 | $57.19 - $85.43 |
| Q3 2020 | 76,713 | $4,858 | $68.67 | $56.85 - $78.17 |
| Q2 2020 | 53,972 | $4,170 | $67.35 | $57.02 - $79.77 |
| Q1 2020 | 20,511 | $1,426 | $83.79 | $52.02 - $98.93 |
| Q4 2019 | 33,563 | $3,472 | $87.47 | $77.84 - $97.70 |
| Q3 2019 | 35,511 | $3,165 | $81.78 | $74.31 - $88.66 |
| Q2 2019 | 7,367 | $673 | $76.63 | $71.16 - $83.47 |
| Q1 2019 | 1,731 | $144 | $67.58 | $51.63 - $78.46 |
| Q4 2018 | 8,072 | $498 | $62.18 | $48.12 - $70.66 |
| Q3 2018 | 7,217 | $554 | $70.20 | $64.67 - $74.99 |
| Q2 2018 | 1,845 | $141 | $67.39 | $59.37 - $73.05 |
| Q1 2018 | 2,771 | $190 | $62.31 | $55.67 - $66.49 |
| Q4 2017 | 1,637 | $116 | $59.54 | $53.90 - $66.58 |
| Q3 2017 | 2,866 | $177 | $53.37 | $48.20 - $59.20 |
| Q2 2017 | 1,531 | $100 | $57.04 | $53.20 - $62.50 |
| Q1 2017 | 1,201 | $78 | $59.26 | $51.41 - $66.19 |
| Q4 2016 | 8,653 | $593 | $56.82 | $47.94 - $64.99 |
| Q3 2016 | 30,265 | $1,840 | $48.99 | $39.67 - $53.81 |
| Q2 2016 | 40,088 | $1,843 | $41.52 | $37.19 - $44.47 |
| Q1 2016 | 29,864 | $1,295 | $40.40 | $36.39 - $46.84 |
| Q4 2015 | 47,829 | $2,598 | $48.12 | $40.31 - $52.05 |
| Q3 2015 | 12,103 | $563 | $39.87 | $35.73 - $44.30 |
| Q2 2015 | 2,912 | $131 | $38.87 | $36.94 - $40.69 |
| Q1 2015 | 3,373 | $157 | $37.07 | $33.21 - $40.57 |
| Q4 2014 | 4,756 | $203 | $35.30 | $30.04 - $40.52 |