| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Petersen Jennifer Sue | VP, Member Relations | 600 EAST SECOND STREET, MUSCATINE | /s/ Steven M. Bradford as attorney-in-fact for Jennifer Petersen | 27 Feb 2026 | 0002035502 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | HNI | Common Stock | Award | $0 | +5,020 | +48% | $0.000000 | 15,508 | 25 Feb 2026 | Direct | F1 |
| transaction | HNI | Common Stock | Tax liability | $108,603 | -2,166 | -14% | $50.14 | 13,342 | 25 Feb 2026 | Direct | F2 |
| holding | HNI | Common Stock | 1,683 | 25 Feb 2026 | Profit-Sharing Retirement Plan |
| Id | Content |
|---|---|
| F1 | Reflects shares of Common Stock of Issuer with respect to Performance Stock Units granted under Issuer's 2017 Stock-Based Compensation Plan on February 15, 2023. |
| F2 | These shares were withheld by Issuer to cover taxes upon vesting of Performance Stock Units that vested on February 25, 2026. No shares were sold. |