Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 225 | $17 | $75.03 | $70.10 - $79.81 |
| Q3 2025 | 371 | $29 | $82.49 | $73.21 - $89.37 |
| Q2 2025 | 4,586 | $386 | $86.03 | $78.60 - $94.32 |
| Q1 2025 | 5,082 | $482 | $103.54 | $91.98 - $114.58 |
| Q4 2024 | 4,875 | $537 | $111.62 | $104.73 - $124.78 |
| Q3 2024 | 5,490 | $621 | $113.17 | $101.07 - $129.81 |
| Q2 2024 | 1,296 | $160 | $121.30 | $115.10 - $129.23 |
| Q1 2024 | 1,505 | $194 | $117.37 | $110.33 - $126.78 |
| Q4 2023 | 648 | $80 | $102.52 | $91.88 - $121.65 |
| Q3 2023 | 584 | $60 | $100.32 | $93.27 - $107.44 |
| Q2 2023 | 1,154 | $116 | $95.78 | $88.08 - $103.21 |
| Q1 2023 | 1,136 | $117 | $102.60 | $90.19 - $110.59 |
| Q4 2022 | 1,573 | $162 | $96.50 | $78.79 - $110.27 |
| Q3 2022 | 1,206 | $104 | $89.51 | $80.19 - $98.62 |
| Q2 2022 | 2,667 | $256 | $91.85 | $81.71 - $101.29 |
| Q1 2022 | 739 | $69 | $89.19 | $83.58 - $94.67 |
| Q4 2021 | 678 | $61 | $82.93 | $76.29 - $89.94 |
| Q3 2021 | 837 | $71 | $83.46 | $75.85 - $90.38 |
| Q2 2021 | 809 | $73 | $92.53 | $83.80 - $100.29 |
| Q1 2021 | 1,699 | $175 | $92.10 | $80.91 - $99.72 |
| Q4 2020 | 1,699 | $155 | $71.95 | $57.19 - $85.43 |
| Q3 2020 | 1,532 | $97 | $68.67 | $56.85 - $78.17 |
| Q2 2020 | 1,274 | $98 | $67.35 | $57.02 - $79.77 |
| Q1 2020 | 642 | $45 | $83.79 | $52.02 - $98.93 |
| Q4 2019 | 785 | $82 | $87.47 | $77.84 - $97.70 |
| Q3 2019 | 1,585 | $141 | $81.78 | $74.31 - $88.66 |
| Q2 2019 | 1,585 | $145 | $76.63 | $71.16 - $83.47 |
| Q1 2019 | 1,764 | $147 | $67.58 | $51.63 - $78.46 |
| Q4 2018 | 1,141 | $71 | $62.18 | $48.12 - $70.66 |
| Q3 2018 | 1,313 | $100 | $70.20 | $64.67 - $74.99 |
| Q2 2018 | 1,313 | $100 | $67.39 | $59.37 - $73.05 |
| Q1 2018 | 1,039 | $71 | $62.31 | $55.67 - $66.49 |
| Q4 2017 | 1,025 | $72 | $59.54 | $53.90 - $66.58 |
| Q3 2017 | 1,255 | $78 | $53.37 | $48.20 - $59.20 |
| Q2 2017 | 1,179 | $78 | $57.04 | $53.20 - $62.50 |
| Q1 2017 | 1,179 | $76 | $59.26 | $51.41 - $66.19 |
| Q4 2016 | 1,317 | $90 | $56.82 | $47.94 - $64.99 |
| Q3 2016 | 1,189 | $72 | $48.99 | $39.67 - $53.81 |
| Q2 2016 | 702 | $32 | $41.52 | $37.19 - $44.47 |
| Q1 2016 | 51 | $2 | $40.40 | $36.39 - $46.84 |
| Q4 2015 | 51 | $3 | $48.12 | $40.31 - $52.05 |
| Q3 2015 | 51 | $2 | $39.87 | $35.73 - $44.30 |
| Q4 2013 | 2,882 | $133 | $38.90 | $36.04 - $42.14 |
| Q3 2013 | 2,656 | $124 | $36.35 | $33.62 - $39.43 |
| Q2 2013 | 1,792 | $72 | $35.20 | $33.13 - $38.11 |