Ticker: IOSP CUSIP: 45768S105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 2,330 | $178 | $75.03 | $70.10 - $79.81 |
| Q3 2025 | 2,517 | $194 | $82.49 | $73.21 - $89.37 |
| Q2 2025 | 6,710 | $564 | $86.03 | $78.60 - $94.32 |
| Q1 2025 | 280 | $27 | $103.54 | $91.98 - $114.58 |
| Q4 2024 | 807 | $89 | $111.62 | $104.73 - $124.78 |
| Q3 2024 | 3,467 | $392 | $113.17 | $101.07 - $129.81 |
| Q2 2024 | 5,673 | $701 | $121.30 | $115.10 - $129.23 |
| Q1 2024 | 4 | $1 | $117.37 | $110.33 - $126.78 |
| Q4 2023 | 8,202 | $1,011 | $102.52 | $91.88 - $121.65 |
| Q3 2023 | 581 | $59 | $100.32 | $93.27 - $107.44 |
| Q2 2023 | 6,661 | $669 | $95.78 | $88.08 - $103.21 |
| Q1 2023 | 5,243 | $1 | $102.60 | $90.19 - $110.59 |
| Q4 2022 | 40 | $0 | $96.50 | $78.79 - $110.27 |
| Q3 2022 | 7,782 | $667 | $89.51 | $80.19 - $98.62 |
| Q2 2022 | 955 | $92 | $91.85 | $81.71 - $101.29 |
| Q1 2022 | 730 | $67 | $89.19 | $83.58 - $94.67 |
| Q4 2021 | 429 | $39 | $82.93 | $76.29 - $89.94 |
| Q3 2021 | 1,522 | $128 | $83.46 | $75.85 - $90.38 |
| Q2 2021 | 845 | $77 | $92.53 | $83.80 - $100.29 |
| Q1 2021 | 1,213 | $125 | $92.10 | $80.91 - $99.72 |
| Q4 2020 | 1,652 | $150 | $71.95 | $57.19 - $85.43 |
| Q3 2020 | 20,547 | $1,301 | $68.67 | $56.85 - $78.17 |
| Q2 2020 | 2,797 | $216 | $67.35 | $57.02 - $79.77 |
| Q4 2019 | 260 | $27 | $87.47 | $77.84 - $97.70 |
| Q3 2019 | 159 | $14 | $81.78 | $74.31 - $88.66 |
| Q4 2018 | 32 | $2 | $62.18 | $48.12 - $70.66 |
| Q3 2018 | 240 | $18 | $70.20 | $64.67 - $74.99 |
| Q2 2018 | 5,944 | $455 | $67.39 | $59.37 - $73.05 |
| Q1 2018 | 507 | $35 | $62.31 | $55.67 - $66.49 |
| Q4 2017 | 172 | $12 | $59.54 | $53.90 - $66.58 |
| Q3 2017 | 2,543 | $157 | $53.37 | $48.20 - $59.20 |
| Q2 2017 | 200 | $13 | $57.04 | $53.20 - $62.50 |
| Q4 2016 | 1,099 | $75 | $56.82 | $47.94 - $64.99 |
| Q3 2016 | 100 | $6 | $48.99 | $39.67 - $53.81 |
| Q2 2016 | 2,411 | $111 | $41.52 | $37.19 - $44.47 |
| Q1 2016 | 80 | $3 | $40.40 | $36.39 - $46.84 |
| Q1 2015 | 1,062 | $50 | $37.07 | $33.21 - $40.57 |
| Q3 2014 | 307 | $11 | $34.84 | $30.82 - $37.97 |
| Q2 2014 | 116 | $5 | $36.87 | $34.10 - $39.69 |
| Q1 2014 | 191 | $9 | $37.58 | $34.73 - $40.51 |
| Q4 2013 | 408 | $19 | $38.90 | $36.04 - $42.14 |
| Q3 2013 | 1,507 | $70 | $36.35 | $33.62 - $39.43 |
| Q2 2013 | 18 | $1 | $35.20 | $33.13 - $38.11 |