{"filing":{"accession_number":"0001193125-26-354027","cik":"0001408075","ticker":"GPK","company_name":"GRAPHIC PACKAGING HOLDING CO","form":"8-K","filing_date":"2026-08-17","report_date":"2026-08-14","primary_document":"d115777d8k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1408075/000119312526354027/d115777d8k.htm"},"events":[{"id":28234,"run_id":25815,"accession_number":"0001193125-26-354027","anchor_item_number":"8.01","event_type":"material_litigation","event_domain":"legal","is_material":true,"confidence":0.92,"summary":"The filing discloses a derivative lawsuit filed on August 14, 2026, against GPHC and certain officers and directors, asserting claims for federal securities law violations, breach of fiduciary duty, aiding and abetting, waste of corporate assets, and unjust enrichment. This is material litigation that would affect a reasonable investor's assessment of the company's legal and financial exposure, particularly given the serious nature of the allegations and the involvement of current and former executives.","company_name":"GRAPHIC PACKAGING HOLDING CO","ticker":"GPK","filing_date":"2026-08-17","form":"8-K","submitted_at":null,"items":[{"id":30112,"accession_number":"0001193125-26-354027","item_number":"8.01","item_title":null,"event_type":"material_litigation","event_domain":"legal","is_material":true,"confidence":0.92,"reasoning":"The filing discloses a derivative lawsuit filed on August 14, 2026, against GPHC and certain officers and directors, asserting claims for federal securities law violations, breach of fiduciary duty, aiding and abetting, waste of corporate assets, and unjust enrichment. This is material litigation that would affect a reasonable investor's assessment of the company's legal and financial exposure, particularly given the serious nature of the allegations and the involvement of current and former executives.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-17T20:06:58.092247+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":30112,"accession_number":"0001193125-26-354027","item_number":"8.01","item_title":null,"event_type":"material_litigation","event_domain":"legal","is_material":true,"confidence":0.92,"reasoning":"The filing discloses a derivative lawsuit filed on August 14, 2026, against GPHC and certain officers and directors, asserting claims for federal securities law violations, breach of fiduciary duty, aiding and abetting, waste of corporate assets, and unjust enrichment. This is material litigation that would affect a reasonable investor's assessment of the company's legal and financial exposure, particularly given the serious nature of the allegations and the involvement of current and former executives.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-17T20:06:58.092247+00:00","company_name":"GRAPHIC PACKAGING HOLDING CO","ticker":"GPK","filing_date":"2026-08-17"}]}