Ticker: ISTR CUSIP: 46134L105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 272 | $7 | $24.59 | $21.43 - $27.95 |
| Q3 2025 | 922 | $22 | $22.44 | $19.17 - $23.70 |
| Q2 2025 | 9,974 | $192 | $18.45 | $15.39 - $20.38 |
| Q1 2025 | 11,114 | $195 | $18.75 | $16.70 - $22.05 |
| Q4 2024 | 10,483 | $231 | $21.91 | $18.17 - $24.80 |
| Q3 2024 | 9,767 | $190 | $17.59 | $14.91 - $19.96 |
| Q2 2024 | 9,370 | $144 | $15.81 | $14.60 - $16.97 |
| Q1 2024 | 8,753 | $143 | $16.49 | $14.82 - $17.99 |
| Q4 2023 | 8,953 | $134 | $11.37 | $9.07 - $15.19 |
| Q3 2023 | 8,662 | $92 | $12.85 | $10.47 - $15.63 |
| Q2 2023 | 8,500 | $103 | $12.26 | $10.71 - $15.63 |
| Q1 2023 | 8,832 | $124 | $19.27 | $13.50 - $22.20 |
| Q4 2022 | 8,500 | $183 | $21.45 | $19.75 - $22.48 |
| Q3 2022 | 8,500 | $169 | $21.80 | $19.90 - $23.72 |
| Q2 2022 | 8,100 | $177 | $20.48 | $18.62 - $23.23 |
| Q1 2022 | 8,100 | $155 | $19.36 | $18.07 - $20.45 |
| Q4 2021 | 8,100 | $149 | $18.74 | $17.07 - $22.47 |
| Q3 2021 | 8,100 | $178 | $22.22 | $21.08 - $23.51 |
| Q2 2021 | 10,539 | $241 | $22.09 | $20.30 - $23.69 |
| Q1 2021 | 8,881 | $182 | $18.78 | $15.66 - $23.45 |
| Q4 2020 | 8,579 | $142 | $15.38 | $12.51 - $17.39 |
| Q3 2020 | 4,991 | $64 | $13.65 | $12.35 - $15.21 |
| Q2 2020 | 4,900 | $71 | $12.74 | $10.00 - $16.57 |
| Q1 2020 | 5,131 | $65 | $20.32 | $8.49 - $24.40 |
| Q4 2019 | 5,365 | $129 | $24.60 | $23.10 - $26.46 |
| Q2 2019 | 3,900 | $93 | $23.29 | $22.22 - $24.50 |
| Q1 2019 | 3 | $0 | $23.58 | $21.64 - $25.29 |
| Q3 2018 | 85 | $2 | $27.20 | $24.40 - $29.90 |
| Q2 2018 | 7 | $0 | $26.87 | $24.05 - $28.95 |
| Q4 2017 | 81 | $2 | $23.73 | $20.35 - $24.60 |
| Q3 2017 | 737 | $18 | $22.68 | $20.25 - $24.15 |
| Q1 2016 | 1,340 | $20 | $15.37 | $13.63 - $17.63 |
| Q4 2015 | 2,340 | $42 | $16.65 | $15.39 - $18.00 |