Ticker: ISTR CUSIP: 46134L105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 36,149 | $966 | $24.59 | $21.43 - $27.95 |
| Q3 2025 | 40,196 | $933 | $22.44 | $19.17 - $23.70 |
| Q2 2025 | 38,416 | $742 | $18.45 | $15.39 - $20.38 |
| Q1 2025 | 38,307 | $675 | $18.75 | $16.70 - $22.05 |
| Q4 2024 | 37,051 | $814 | $21.91 | $18.17 - $24.80 |
| Q3 2024 | 40,801 | $792 | $17.59 | $14.91 - $19.96 |
| Q2 2024 | 48,073 | $740 | $15.81 | $14.60 - $16.97 |
| Q1 2024 | 22,743 | $372 | $16.49 | $14.82 - $17.99 |
| Q4 2023 | 26,612 | $397 | $11.37 | $9.07 - $15.19 |
| Q3 2022 | 13,157 | $261 | $21.80 | $19.90 - $23.72 |
| Q2 2022 | 13,049 | $286 | $20.48 | $18.62 - $23.23 |
| Q1 2022 | 12,901 | $246 | $19.36 | $18.07 - $20.45 |
| Q4 2021 | 12,375 | $228 | $18.74 | $17.07 - $22.47 |
| Q3 2021 | 10,213 | $225 | $22.22 | $21.08 - $23.51 |
| Q2 2021 | 10,274 | $235 | $22.09 | $20.30 - $23.69 |
| Q1 2021 | 36,314 | $746 | $18.78 | $15.66 - $23.45 |
| Q4 2020 | 36,231 | $599 | $15.38 | $12.51 - $17.39 |
| Q3 2020 | 44,524 | $571 | $13.65 | $12.35 - $15.21 |
| Q2 2020 | 45,462 | $659 | $12.74 | $10.00 - $16.57 |
| Q1 2020 | 38,843 | $496 | $20.32 | $8.49 - $24.40 |
| Q4 2019 | 40,240 | $965 | $24.60 | $23.10 - $26.46 |
| Q3 2019 | 35,694 | $850 | $23.51 | $21.48 - $24.50 |
| Q2 2019 | 34,185 | $815 | $23.29 | $22.22 - $24.50 |
| Q1 2019 | 32,602 | $740 | $23.58 | $21.64 - $25.29 |
| Q4 2018 | 32,570 | $808 | $24.99 | $19.49 - $27.84 |
| Q3 2018 | 32,112 | $862 | $27.20 | $24.40 - $29.90 |
| Q2 2018 | 30,534 | $845 | $26.87 | $24.05 - $28.95 |
| Q1 2018 | 30,249 | $782 | $24.78 | $23.10 - $26.55 |
| Q4 2017 | 28,820 | $695 | $23.73 | $20.35 - $24.60 |
| Q3 2017 | 25,231 | $608 | $22.68 | $20.25 - $24.15 |
| Q2 2017 | 21,138 | $484 | $22.44 | $21.27 - $23.75 |