Ticker: ISTR CUSIP: 46134L105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 25,344 | $677 | $24.59 | $21.43 - $27.95 |
| Q3 2025 | 21,632 | $502 | $22.44 | $19.17 - $23.70 |
| Q2 2025 | 15,541 | $300 | $18.45 | $15.39 - $20.38 |
| Q1 2025 | 16,459 | $290 | $18.75 | $16.70 - $22.05 |
| Q4 2024 | 9,571 | $210 | $21.91 | $18.17 - $24.80 |
| Q3 2024 | 12,155 | $236 | $17.59 | $14.91 - $19.96 |
| Q2 2024 | 6,065 | $93 | $15.81 | $14.60 - $16.97 |
| Q1 2024 | 11,840 | $194 | $16.49 | $14.82 - $17.99 |
| Q4 2023 | 3,096 | $46 | $11.37 | $9.07 - $15.19 |
| Q3 2023 | 1,884 | $20 | $12.85 | $10.47 - $15.63 |
| Q2 2023 | 1,884 | $23 | $12.26 | $10.71 - $15.63 |
| Q1 2023 | 1,102 | $15 | $19.27 | $13.50 - $22.20 |
| Q4 2022 | 11 | $0 | $21.45 | $19.75 - $22.48 |
| Q3 2022 | 2 | $0 | $21.80 | $19.90 - $23.72 |
| Q2 2022 | 1 | $0 | $20.48 | $18.62 - $23.23 |
| Q1 2022 | 4,834 | $92 | $19.36 | $18.07 - $20.45 |
| Q4 2021 | 5,061 | $94 | $18.74 | $17.07 - $22.47 |
| Q3 2021 | 5,267 | $116 | $22.22 | $21.08 - $23.51 |
| Q2 2021 | 7,170 | $164 | $22.09 | $20.30 - $23.69 |
| Q1 2021 | 16,961 | $348 | $18.78 | $15.66 - $23.45 |
| Q4 2020 | 10,438 | $172 | $15.38 | $12.51 - $17.39 |
| Q3 2020 | 8,222 | $105 | $13.65 | $12.35 - $15.21 |
| Q2 2020 | 9,128 | $131 | $12.74 | $10.00 - $16.57 |
| Q1 2020 | 4,636 | $60 | $20.32 | $8.49 - $24.40 |
| Q4 2019 | 5,003 | $119 | $24.60 | $23.10 - $26.46 |
| Q3 2019 | 4,923 | $117 | $23.51 | $21.48 - $24.50 |
| Q2 2019 | 3,838 | $91 | $23.29 | $22.22 - $24.50 |
| Q1 2019 | 2,388 | $55 | $23.58 | $21.64 - $25.29 |
| Q4 2018 | 5,759 | $143 | $24.99 | $19.49 - $27.84 |
| Q3 2018 | 3,156 | $84 | $27.20 | $24.40 - $29.90 |
| Q2 2018 | 1,447 | $39 | $26.87 | $24.05 - $28.95 |
| Q1 2018 | 775 | $20 | $24.78 | $23.10 - $26.55 |
| Q4 2017 | 1,278 | $30 | $23.73 | $20.35 - $24.60 |
| Q3 2017 | 536 | $13 | $22.68 | $20.25 - $24.15 |
| Q2 2017 | 100 | $2 | $22.44 | $21.27 - $23.75 |
| Q1 2017 | 1,986 | $43 | $20.29 | $18.31 - $22.50 |
| Q4 2016 | 2,001 | $37 | $17.15 | $15.40 - $19.70 |
| Q3 2016 | 2,084 | $32 | $15.43 | $15.00 - $16.46 |
| Q2 2016 | 1,986 | $31 | $15.36 | $14.61 - $16.48 |
| Q1 2016 | 1,986 | $29 | $15.37 | $13.63 - $17.63 |
| Q4 2015 | 1,986 | $35 | $16.65 | $15.39 - $18.00 |
| Q3 2015 | 1,986 | $31 | $15.58 | $14.95 - $16.52 |
| Q2 2015 | 100 | $2 | $15.62 | $14.65 - $17.20 |
| Q1 2015 | 100 | $2 | $14.89 | $13.35 - $17.42 |
| Q3 2014 | 55 | $1 | $13.94 | $13.06 - $19.00 |