| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ISTR | Common Stock | Small acquisition under Rule 16a-6 | $21.45 | +1 | +0.05% | $21.45 | 2,090 | 31 Jan 2023 | Minor children | |
| transaction | ISTR | Common Stock | Small acquisition under Rule 16a-6 | $26.18 | +2 | +0.1% | $13.09 | 2,092 | 28 Apr 2023 | Minor children | |
| transaction | ISTR | Common Stock | Small acquisition under Rule 16a-6 | $28.52 | +2 | +0.1% | $14.26 | 2,094 | 31 Jul 2023 | Minor children | |
| transaction | ISTR | Common Stock | Small acquisition under Rule 16a-6 | $30.42 | +3 | +0.14% | $10.14 | 2,097 | 31 Oct 2023 | Minor children | |
| holding | ISTR | Common Stock | 206,882 | 31 Dec 2023 | Direct | ||||||
| holding | ISTR | Common Stock | 29,145 | 31 Dec 2023 | 401(k) | ||||||
| holding | ISTR | Common Stock | 250 | 31 Dec 2023 | Spouse |