Packaging Corporation OF America

PKG·NYSE·$218.47Share Price as of 11/2·$19BMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/07/26 10-QQ1 ended 03/31/2605/08/26 10-KFY 202502/26/26 10-QQ3 ended 09/30/2511/06/25 10-QQ2 ended 06/30/2508/07/25

Disclosures

8-KCurrent report10/22/26 8-KCurrent report07/23/26 8-KCurrent report05/13/26 8-KCurrent report04/23/26 8-KCurrent report03/03/26

Prospectuses and Registrations

424B5Prospectus supplement08/13/25 424B3Prospectus08/11/25 FWPFree writing prospectus08/11/25 S-3ASRAutomatic shelf registration08/11/25 S-8Registration of securities for employees05/08/24

Proxies

DEF 14ADefinitive proxy03/27/26 DEFA14AAdditional proxy materials03/27/26 DEF 14ADefinitive proxy03/27/25 DEFA14AAdditional proxy materials03/27/25 DEFA14AAdditional proxy materials04/03/24

Ownership

Form 4Insider transaction08/24/26 144Proposed sale of securities08/20/26 Form 4Insider transaction08/11/26 SC 13GBeneficial ownership08/07/26 Form 4Insider transaction08/05/26

Other

11-KEmployee stock purchase plan report05/28/26 11-KEmployee stock purchase plan report05/28/26 ARSAnnual report to shareholders03/27/26 11-KEmployee stock purchase plan report05/29/25 11-KEmployee stock purchase plan report05/29/25