Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q2 2025 | 54,335 | $4,569 | $86.03 | $78.60 - $94.32 |
| Q1 2025 | 79,066 | $7,492 | $103.54 | $91.98 - $114.58 |
| Q4 2024 | 77,696 | $8,551 | $111.62 | $104.73 - $124.78 |
| Q3 2024 | 78,443 | $8,871 | $113.17 | $101.07 - $129.81 |
| Q2 2024 | 78,162 | $9,660 | $121.30 | $115.10 - $129.23 |
| Q1 2024 | 78,336 | $10,101 | $117.37 | $110.33 - $126.78 |
| Q4 2023 | 79,776 | $9,832 | $102.52 | $91.88 - $121.65 |
| Q3 2023 | 80,399 | $8,217 | $100.32 | $93.27 - $107.44 |
| Q2 2023 | 79,957 | $8,031 | $95.78 | $88.08 - $103.21 |
| Q1 2023 | 79,782 | $8,191 | $102.60 | $90.19 - $110.59 |
| Q4 2022 | 80,347 | $8,264 | $96.50 | $78.79 - $110.27 |
| Q3 2022 | 81,295 | $6,965 | $89.51 | $80.19 - $98.62 |
| Q2 2022 | 81,153 | $7,774 | $91.85 | $81.71 - $101.29 |
| Q1 2022 | 81,673 | $7,559 | $89.19 | $83.58 - $94.67 |
| Q4 2021 | 82,820 | $7,482 | $82.93 | $76.29 - $89.94 |
| Q3 2021 | 83,680 | $7,048 | $83.46 | $75.85 - $90.38 |
| Q2 2021 | 87,035 | $7,886 | $92.53 | $83.80 - $100.29 |
| Q1 2021 | 87,627 | $8,998 | $92.10 | $80.91 - $99.72 |
| Q4 2020 | 89,796 | $8,147 | $71.95 | $57.19 - $85.43 |
| Q3 2020 | 95,102 | $6,022 | $68.67 | $56.85 - $78.17 |
| Q2 2020 | 101,465 | $7,838 | $67.35 | $57.02 - $79.77 |
| Q1 2020 | 103,842 | $7,216 | $83.79 | $52.02 - $98.93 |
| Q4 2019 | 172,956 | $17,891 | $87.47 | $77.84 - $97.70 |
| Q3 2019 | 174,698 | $15,573 | $81.78 | $74.31 - $88.66 |
| Q2 2019 | 173,832 | $15,860 | $76.63 | $71.16 - $83.47 |
| Q1 2019 | 178,852 | $14,907 | $67.58 | $51.63 - $78.46 |
| Q4 2018 | 182,840 | $11,292 | $62.18 | $48.12 - $70.66 |
| Q3 2018 | 179,390 | $13,768 | $70.20 | $64.67 - $74.99 |
| Q2 2018 | 182,020 | $13,934 | $67.39 | $59.37 - $73.05 |
| Q1 2018 | 186,922 | $12,823 | $62.31 | $55.67 - $66.49 |
| Q4 2017 | 192,007 | $13,556 | $59.54 | $53.90 - $66.58 |
| Q3 2017 | 194,701 | $12,003 | $53.37 | $48.20 - $59.20 |
| Q2 2017 | 193,926 | $12,712 | $57.04 | $53.20 - $62.50 |
| Q1 2017 | 195,852 | $12,681 | $59.26 | $51.41 - $66.19 |
| Q4 2016 | 210,392 | $14,412 | $56.82 | $47.94 - $64.99 |
| Q3 2016 | 228,838 | $13,916 | $48.99 | $39.67 - $53.81 |
| Q2 2016 | 231,074 | $10,627 | $41.52 | $37.19 - $44.47 |
| Q1 2016 | 294,166 | $12,755 | $40.40 | $36.39 - $46.84 |
| Q4 2015 | 314,686 | $17,091 | $48.12 | $40.31 - $52.05 |
| Q3 2015 | 317,946 | $14,788 | $39.87 | $35.73 - $44.30 |
| Q2 2015 | 317,818 | $14,315 | $38.87 | $36.94 - $40.69 |
| Q1 2015 | 315,685 | $14,645 | $37.07 | $33.21 - $40.57 |
| Q4 2014 | 316,564 | $13,517 | $35.30 | $30.04 - $40.52 |
| Q3 2014 | 316,652 | $11,368 | $34.84 | $30.82 - $37.97 |
| Q2 2014 | 315,235 | $13,609 | $36.87 | $34.10 - $39.69 |
| Q1 2014 | 310,905 | $14,062 | $37.58 | $34.73 - $40.51 |
| Q4 2013 | 308,746 | $14,270 | $38.90 | $36.04 - $42.14 |
| Q3 2013 | 304,351 | $14,201 | $36.35 | $33.62 - $39.43 |
| Q2 2013 | 299,001 | $12,014 | $35.20 | $33.13 - $38.11 |