| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Vaughn Joseph | SVP | PACKAGING CORP. OF AMERICA, 1 N. FIELD CT., LAKE FOREST | Kent A. Pflederer, attorney in fact | 26 Feb 2026 | 0002023162 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | PKG | Common Stock | Award | $0 | +1,480 | +15% | $0.000000 | 11,167 | 25 Feb 2026 | Direct | F1 |
| holding | PKG | Common Stock | 451 | 25 Feb 2026 | by 401(k) plan |
| Id | Content |
|---|---|
| F1 | Represents restricted stock units ("RSUs") issued to the reporting person. Each RSU represents a contingent right to receive one share of the registrant's common stock. |