{"filing":{"accession_number":"0001193125-26-428056","cik":"0000075677","ticker":"PKG","company_name":"PACKAGING CORP OF AMERICA","form":"8-K","filing_date":"2026-10-21","report_date":"2026-10-21","primary_document":"pkg-20261021.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/75677/000119312526428056/pkg-20261021.htm"},"events":[{"id":36910,"run_id":34027,"accession_number":"0001193125-26-428056","anchor_item_number":"2.02","event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.98,"summary":"This is a straightforward earnings release for Q3 2026. The Item 2.02 disclosure states that \"On October 21, 2026, Packaging Corporation of America issued a press release announcing third quarter financial results,\" with the press release furnished as Exhibit 99.1. The exhibit contains detailed financial results including net income of $262 million ($2.93 per share), net sales of $2.6 billion, segment operating income, and forward guidance for Q4 2026 earnings of $2.81 per share excluding special items. This is a material disclosure affecting investor assessment of the registrant's financial performance.","company_name":"PACKAGING CORP OF AMERICA","ticker":"PKG","filing_date":"2026-10-21","form":"8-K","submitted_at":null,"items":[{"id":41470,"accession_number":"0001193125-26-428056","item_number":"2.02","item_title":"Results of Operations and Financial Condition.","event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.98,"reasoning":"This is a straightforward earnings release for Q3 2026. The Item 2.02 disclosure states that \"On October 21, 2026, Packaging Corporation of America issued a press release announcing third quarter financial results,\" with the press release furnished as Exhibit 99.1. The exhibit contains detailed financial results including net income of $262 million ($2.93 per share), net sales of $2.6 billion, segment operating income, and forward guidance for Q4 2026 earnings of $2.81 per share excluding special items. This is a material disclosure affecting investor assessment of the registrant's financial performance.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-10-22T10:02:16.689674+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":41470,"accession_number":"0001193125-26-428056","item_number":"2.02","item_title":"Results of Operations and Financial Condition.","event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.98,"reasoning":"This is a straightforward earnings release for Q3 2026. The Item 2.02 disclosure states that \"On October 21, 2026, Packaging Corporation of America issued a press release announcing third quarter financial results,\" with the press release furnished as Exhibit 99.1. The exhibit contains detailed financial results including net income of $262 million ($2.93 per share), net sales of $2.6 billion, segment operating income, and forward guidance for Q4 2026 earnings of $2.81 per share excluding special items. This is a material disclosure affecting investor assessment of the registrant's financial performance.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-10-22T10:02:16.689674+00:00","company_name":"PACKAGING CORP OF AMERICA","ticker":"PKG","filing_date":"2026-10-21"}]}