Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 34,278 | $3 | $75.03 | $70.10 - $79.81 |
| Q3 2025 | 34,728 | $3 | $82.49 | $73.21 - $89.37 |
| Q2 2025 | 30,548 | $3 | $86.03 | $78.60 - $94.32 |
| Q1 2025 | 28,858 | $3 | $103.54 | $91.98 - $114.58 |
| Q4 2024 | 34,215 | $4 | $111.62 | $104.73 - $124.78 |
| Q3 2024 | 51,512 | $6 | $113.17 | $101.07 - $129.81 |
| Q2 2024 | 44,672 | $6 | $121.30 | $115.10 - $129.23 |
| Q1 2024 | 49,598 | $6 | $117.37 | $110.33 - $126.78 |
| Q4 2023 | 76,327 | $9 | $102.52 | $91.88 - $121.65 |
| Q3 2023 | 78,288 | $8 | $100.32 | $93.27 - $107.44 |
| Q2 2023 | 73,978 | $7 | $95.78 | $88.08 - $103.21 |
| Q1 2023 | 68,778 | $7 | $102.60 | $90.19 - $110.59 |
| Q4 2022 | 37,720 | $4 | $96.50 | $78.79 - $110.27 |
| Q3 2022 | 27,300 | $2,339 | $89.51 | $80.19 - $98.62 |
| Q2 2022 | 26,690 | $2,557 | $91.85 | $81.71 - $101.29 |
| Q1 2022 | 25,852 | $2,393 | $89.19 | $83.58 - $94.67 |
| Q4 2021 | 12,788 | $1,155 | $82.93 | $76.29 - $89.94 |
| Q3 2021 | 6,503 | $548 | $83.46 | $75.85 - $90.38 |
| Q3 2020 | 5,480 | $347 | $68.67 | $56.85 - $78.17 |
| Q2 2020 | 24,880 | $1,922 | $67.35 | $57.02 - $79.77 |
| Q1 2020 | 20,932 | $1,455 | $83.79 | $52.02 - $98.93 |
| Q4 2019 | 28,928 | $2,992 | $87.47 | $77.84 - $97.70 |
| Q3 2019 | 28,054 | $2,501 | $81.78 | $74.31 - $88.66 |
| Q2 2019 | 37,400 | $3,412 | $76.63 | $71.16 - $83.47 |
| Q1 2019 | 31,212 | $2,602 | $67.58 | $51.63 - $78.46 |
| Q4 2018 | 60,557 | $3,740 | $62.18 | $48.12 - $70.66 |
| Q3 2018 | 57,245 | $4,394 | $70.20 | $64.67 - $74.99 |
| Q2 2018 | 58,137 | $4,450 | $67.39 | $59.37 - $73.05 |
| Q1 2018 | 62,734 | $4,304 | $62.31 | $55.67 - $66.49 |
| Q4 2017 | 40,473 | $2,857 | $59.54 | $53.90 - $66.58 |
| Q3 2017 | 43,644 | $2,691 | $53.37 | $48.20 - $59.20 |
| Q2 2017 | 34,622 | $2,269 | $57.04 | $53.20 - $62.50 |
| Q4 2016 | 4,971 | $341 | $56.82 | $47.94 - $64.99 |
| Q3 2016 | 17,698 | $1,076 | $48.99 | $39.67 - $53.81 |
| Q2 2016 | 14,333 | $659 | $41.52 | $37.19 - $44.47 |
| Q1 2016 | 18,394 | $798 | $40.40 | $36.39 - $46.84 |
| Q4 2015 | 13,150 | $714 | $48.12 | $40.31 - $52.05 |
| Q3 2015 | 11,610 | $540 | $39.87 | $35.73 - $44.30 |
| Q2 2015 | 23,020 | $1,037 | $38.87 | $36.94 - $40.69 |
| Q1 2015 | 14,130 | $655 | $37.07 | $33.21 - $40.57 |
| Q3 2013 | 4,680 | $218 | $36.35 | $33.62 - $39.43 |