| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Jones David B. | SVP, GC & CCO | 8310 SOUTH VALLEY HIGHWAY, SUITE 350, ENGLEWOOD | David Bentley Jones | 03 Mar 2026 | 0001730447 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | IOSP | Common Stock | Tax liability | $68,548 | -875 | -5.3% | $78.34 | 15,721 | 27 Feb 2026 | Direct | F1 |
| transaction | IOSP | Common Stock | Sale | $77,758 | -1,028 | -6.5% | $75.64 | 14,693 | 03 Mar 2026 | Direct |
| Id | Content |
|---|---|
| F1 | Shares withheld to settle income tax liability incurred upon vesting of restricted stock unit award on February 27, 2026. |