| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | 8310 SOUTH VALLEY HIGHWAY, SUITE 350, ENGLEWOOD | Hardy L. Griffin | 03 Mar 2026 | 0001862015 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | IOSP | Common Stock | Tax liability | $31,414 | -401 | -3.8% | $78.34 | 10,161 | 27 Feb 2026 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Shares withheld to settle income tax liability incurred upon vesting of restricted stock unit award on February 27, 2026. |