Ticker: ISTR CUSIP: 46134L105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 46,434 | $1,241 | $24.59 | $21.43 - $27.95 |
| Q3 2025 | 45,991 | $889 | $22.44 | $19.17 - $23.70 |
| Q2 2025 | 45,991 | $889 | $18.45 | $15.39 - $20.38 |
| Q1 2025 | 45,735 | $805 | $18.75 | $16.70 - $22.05 |
| Q4 2024 | 51,717 | $1,136 | $21.91 | $18.17 - $24.80 |
| Q3 2024 | 51,485 | $1,000 | $17.59 | $14.91 - $19.96 |
| Q2 2024 | 51,237 | $789 | $15.81 | $14.60 - $16.97 |
| Q1 2024 | 50,961 | $834 | $16.49 | $14.82 - $17.99 |
| Q4 2023 | 56,695 | $845 | $11.37 | $9.07 - $15.19 |
| Q3 2023 | 56,164 | $595 | $12.85 | $10.47 - $15.63 |
| Q2 2023 | 56,911 | $689 | $12.26 | $10.71 - $15.63 |
| Q1 2023 | 55,460 | $774 | $19.27 | $13.50 - $22.20 |
| Q4 2022 | 55,232 | $1,189 | $21.45 | $19.75 - $22.48 |
| Q3 2022 | 57,355 | $1,141 | $21.80 | $19.90 - $23.72 |
| Q2 2022 | 57,141 | $1,251 | $20.48 | $18.62 - $23.23 |
| Q1 2022 | 56,917 | $1,087 | $19.36 | $18.07 - $20.45 |
| Q4 2021 | 56,703 | $1,044 | $18.74 | $17.07 - $22.47 |
| Q3 2021 | 56,485 | $1,244 | $22.22 | $21.08 - $23.51 |
| Q2 2021 | 56,302 | $1,289 | $22.09 | $20.30 - $23.69 |
| Q1 2021 | 53,608 | $1,102 | $18.78 | $15.66 - $23.45 |
| Q4 2020 | 53,420 | $884 | $15.38 | $12.51 - $17.39 |
| Q3 2020 | 53,207 | $682 | $13.65 | $12.35 - $15.21 |
| Q2 2020 | 53,011 | $769 | $12.74 | $10.00 - $16.57 |
| Q1 2020 | 52,787 | $674 | $20.32 | $8.49 - $24.40 |
| Q4 2019 | 52,661 | $1,264 | $24.60 | $23.10 - $26.46 |
| Q3 2019 | 52,546 | $1,251 | $23.51 | $21.48 - $24.50 |
| Q2 2019 | 52,439 | $1,251 | $23.29 | $22.22 - $24.50 |
| Q1 2019 | 52,331 | $1,188 | $23.58 | $21.64 - $25.29 |
| Q4 2018 | 47,183 | $1,170 | $24.99 | $19.49 - $27.84 |
| Q3 2018 | 46,603 | $1,251 | $27.20 | $24.40 - $29.90 |
| Q2 2018 | 46,533 | $1,287 | $26.87 | $24.05 - $28.95 |
| Q1 2018 | 46,469 | $1,201 | $24.78 | $23.10 - $26.55 |
| Q4 2017 | 46,411 | $1,119 | $23.73 | $20.35 - $24.60 |
| Q3 2017 | 46,352 | $1,117 | $22.68 | $20.25 - $24.15 |
| Q2 2017 | 45,450 | $1,042 | $22.44 | $21.27 - $23.75 |
| Q1 2017 | 45,410 | $995 | $20.29 | $18.31 - $22.50 |
| Q4 2016 | 45,381 | $847 | $17.15 | $15.40 - $19.70 |
| Q3 2016 | 45,381 | $697 | $15.43 | $15.00 - $16.46 |
| Q2 2016 | 20,000 | $308 | $15.36 | $14.61 - $16.48 |