X0609 4 2026-05-12 0000075677 PACKAGING CORP OF AMERICA PKG 0001204288 LYONS ROBERT C false 222 WEST ADAMS ST. CHICAGO IL 60606 true false false false false Common Stock 2026-05-12 4 A false 591 0 A 13429 D Share award for equity portion of directors fees. Kent A. Pflederer, attorney in fact 2026-05-12