X0609 4 2026-05-12 0000075677 PACKAGING CORP OF AMERICA PKG 0001245966 SOULELES THOMAS S false 1 N.FIELD CT. LAKE FOREST IL 60045 true false false false false Common Stock 2026-05-12 4 A false 591 0 A 11202 D Share award for equity portion of directors fees. Kent A. Pflederer, attorney in fact 2026-05-12