Ticker: ISTR CUSIP: 46134L105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 87,746 | $2,345 | $24.59 | $21.43 - $27.95 |
| Q3 2025 | 91,967 | $2,135 | $22.44 | $19.17 - $23.70 |
| Q2 2025 | 95,733 | $1,850 | $18.45 | $15.39 - $20.38 |
| Q1 2025 | 98,902 | $1,742 | $18.75 | $16.70 - $22.05 |
| Q4 2024 | 101,031 | $2,219 | $21.91 | $18.17 - $24.80 |
| Q3 2024 | 97,554 | $1,893 | $17.59 | $14.91 - $19.96 |
| Q2 2024 | 46,695 | $719 | $15.81 | $14.60 - $16.97 |
| Q1 2024 | 44,647 | $730 | $16.49 | $14.82 - $17.99 |
| Q4 2023 | 45,235 | $674 | $11.37 | $9.07 - $15.19 |
| Q3 2023 | 45,053 | $477 | $12.85 | $10.47 - $15.63 |
| Q2 2023 | 45,308 | $549 | $12.26 | $10.71 - $15.63 |
| Q1 2023 | 45,077 | $629 | $19.27 | $13.50 - $22.20 |
| Q4 2022 | 44,429 | $957 | $21.45 | $19.75 - $22.48 |
| Q3 2022 | 44,658 | $889 | $21.80 | $19.90 - $23.72 |
| Q2 2022 | 43,408 | $951 | $20.48 | $18.62 - $23.23 |
| Q1 2022 | 44,805 | $856 | $19.36 | $18.07 - $20.45 |
| Q4 2021 | 45,414 | $836 | $18.74 | $17.07 - $22.47 |
| Q3 2021 | 46,165 | $1,017 | $22.22 | $21.08 - $23.51 |
| Q2 2021 | 46,322 | $1,060 | $22.09 | $20.30 - $23.69 |
| Q1 2021 | 123,242 | $2,533 | $18.78 | $15.66 - $23.45 |
| Q4 2020 | 149,867 | $2,479 | $15.38 | $12.51 - $17.39 |
| Q3 2020 | 162,049 | $2,078 | $13.65 | $12.35 - $15.21 |
| Q2 2020 | 159,345 | $2,310 | $12.74 | $10.00 - $16.57 |
| Q1 2020 | 118,325 | $1,511 | $20.32 | $8.49 - $24.40 |
| Q4 2019 | 106,965 | $2,567 | $24.60 | $23.10 - $26.46 |
| Q3 2019 | 110,347 | $2,626 | $23.51 | $21.48 - $24.50 |
| Q2 2019 | 104,890 | $2,501 | $23.29 | $22.22 - $24.50 |
| Q1 2019 | 102,569 | $2,329 | $23.58 | $21.64 - $25.29 |
| Q4 2018 | 101,846 | $2,526 | $24.99 | $19.49 - $27.84 |
| Q3 2018 | 99,734 | $2,678 | $27.20 | $24.40 - $29.90 |
| Q2 2018 | 98,551 | $2,725 | $26.87 | $24.05 - $28.95 |
| Q1 2018 | 93,041 | $2,405 | $24.78 | $23.10 - $26.55 |
| Q4 2017 | 90,686 | $2,185 | $23.73 | $20.35 - $24.60 |
| Q3 2017 | 92,274 | $2,223 | $22.68 | $20.25 - $24.15 |
| Q2 2017 | 92,344 | $2,114 | $22.44 | $21.27 - $23.75 |