Ticker: ISTR CUSIP: 46134L105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 8,350 | $223 | $24.59 | $21.43 - $27.95 |
| Q3 2025 | 11,117 | $258 | $22.44 | $19.17 - $23.70 |
| Q2 2025 | 5,738 | $111 | $18.45 | $15.39 - $20.38 |
| Q1 2025 | 13,001 | $229 | $18.75 | $16.70 - $22.05 |
| Q4 2024 | 23,830 | $523 | $21.91 | $18.17 - $24.80 |
| Q3 2024 | 16,417 | $318 | $17.59 | $14.91 - $19.96 |
| Q2 2024 | 11,227 | $173 | $15.81 | $14.60 - $16.97 |
| Q1 2024 | 8,577 | $140 | $16.49 | $14.82 - $17.99 |
| Q4 2023 | 2,212 | $33 | $11.37 | $9.07 - $15.19 |
| Q2 2023 | 1,499 | $18 | $12.26 | $10.71 - $15.63 |
| Q1 2023 | 1,524 | $21 | $19.27 | $13.50 - $22.20 |
| Q4 2022 | 1,029 | $0 | $21.45 | $19.75 - $22.48 |
| Q3 2022 | 2,948 | $59 | $21.80 | $19.90 - $23.72 |
| Q2 2022 | 2,441 | $53 | $20.48 | $18.62 - $23.23 |
| Q1 2022 | 4,063 | $78 | $19.36 | $18.07 - $20.45 |
| Q4 2021 | 8,872 | $163 | $18.74 | $17.07 - $22.47 |
| Q3 2021 | 23,730 | $523 | $22.22 | $21.08 - $23.51 |
| Q2 2021 | 23,285 | $533 | $22.09 | $20.30 - $23.69 |
| Q1 2021 | 118,986 | $2,445 | $18.78 | $15.66 - $23.45 |
| Q4 2020 | 120,853 | $1,999 | $15.38 | $12.51 - $17.39 |
| Q3 2020 | 117,819 | $1,531 | $13.65 | $12.35 - $15.21 |
| Q2 2020 | 130,085 | $1,886 | $12.74 | $10.00 - $16.57 |
| Q1 2020 | 104,812 | $1,338 | $20.32 | $8.49 - $24.40 |
| Q4 2019 | 26,469 | $635 | $24.60 | $23.10 - $26.46 |
| Q3 2019 | 16,449 | $392 | $23.51 | $21.48 - $24.50 |
| Q2 2019 | 15,322 | $358 | $23.29 | $22.22 - $24.50 |
| Q1 2019 | 11,521 | $261 | $23.58 | $21.64 - $25.29 |
| Q4 2018 | 9,551 | $237 | $24.99 | $19.49 - $27.84 |
| Q3 2018 | 5,117 | $137 | $27.20 | $24.40 - $29.90 |
| Q2 2018 | 1,871 | $52 | $26.87 | $24.05 - $28.95 |
| Q1 2018 | 1,646 | $43 | $24.78 | $23.10 - $26.55 |
| Q4 2017 | 1,761 | $42 | $23.73 | $20.35 - $24.60 |