Ticker: ISTR CUSIP: 46134L105 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 410,563 | $10,970 | $24.59 | $21.43 - $27.95 |
| Q3 2025 | 391,727 | $9,092 | $22.44 | $19.17 - $23.70 |
| Q2 2025 | 382,871 | $7,398 | $18.45 | $15.39 - $20.38 |
| Q1 2025 | 369,291 | $6,503 | $18.75 | $16.70 - $22.05 |
| Q4 2024 | 341,384 | $7,497 | $21.91 | $18.17 - $24.80 |
| Q3 2024 | 317,489 | $6,159 | $17.59 | $14.91 - $19.96 |
| Q2 2024 | 251,235 | $3,869 | $15.81 | $14.60 - $16.97 |
| Q1 2024 | 219,646 | $3,593 | $16.49 | $14.82 - $17.99 |
| Q4 2023 | 190,429 | $2,839 | $11.37 | $9.07 - $15.19 |
| Q3 2023 | 181,276 | $1,920 | $12.85 | $10.47 - $15.63 |
| Q2 2023 | 211,139 | $2,557 | $12.26 | $10.71 - $15.63 |
| Q1 2023 | 254,282 | $3,550 | $19.27 | $13.50 - $22.20 |
| Q4 2022 | 255,246 | $5 | $21.45 | $19.75 - $22.48 |
| Q3 2022 | 251,717 | $5,009 | $21.80 | $19.90 - $23.72 |
| Q2 2022 | 234,209 | $5,129 | $20.48 | $18.62 - $23.23 |
| Q1 2022 | 217,288 | $4,148 | $19.36 | $18.07 - $20.45 |
| Q4 2021 | 214,987 | $3,958 | $18.74 | $17.07 - $22.47 |
| Q3 2021 | 215,296 | $4,741 | $22.22 | $21.08 - $23.51 |
| Q2 2021 | 191,366 | $4,380 | $22.09 | $20.30 - $23.69 |
| Q1 2021 | 159,798 | $3,284 | $18.78 | $15.66 - $23.45 |
| Q4 2020 | 155,492 | $2,572 | $15.38 | $12.51 - $17.39 |
| Q3 2020 | 155,318 | $1,991 | $13.65 | $12.35 - $15.21 |
| Q2 2020 | 155,318 | $2,252 | $12.74 | $10.00 - $16.57 |
| Q1 2020 | 154,681 | $1,975 | $20.32 | $8.49 - $24.40 |
| Q4 2019 | 146,808 | $3,523 | $24.60 | $23.10 - $26.46 |
| Q3 2019 | 143,664 | $3,419 | $23.51 | $21.48 - $24.50 |
| Q2 2019 | 142,248 | $3,392 | $23.29 | $22.22 - $24.50 |
| Q1 2019 | 127,532 | $2,897 | $23.58 | $21.64 - $25.29 |
| Q4 2018 | 98,910 | $2,453 | $24.99 | $19.49 - $27.84 |
| Q3 2018 | 86,290 | $2,317 | $27.20 | $24.40 - $29.90 |
| Q2 2018 | 70,520 | $1,950 | $26.87 | $24.05 - $28.95 |
| Q1 2018 | 50,767 | $1,312 | $24.78 | $23.10 - $26.55 |
| Q4 2017 | 27,287 | $658 | $23.73 | $20.35 - $24.60 |
| Q3 2017 | 27,287 | $658 | $22.68 | $20.25 - $24.15 |
| Q2 2017 | 14,327 | $328 | $22.44 | $21.27 - $23.75 |