{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-267664","form_type":"8-K","ticker":"GPK","cik":"0001408075","company_name":"GRAPHIC PACKAGING HOLDING CO","filed_at":"2026-06-11T20:30:07+00:00","discovered_at":"2026-06-11T20:31:05.670868+00:00","generated_at":"2026-06-11T20:36:31.099854+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Graphic Packaging elects Larry M. Venturelli as Chairman; Martens retires","bullets":["Philip R. Martens retired as Board member and Chairman effective June 11, 2026, after the Annual Meeting.","Larry M. Venturelli, a director since 2016, elected Chairman of the Board effective same date.","Venturelli previously served as EVP and CFO of Whirlpool and chairs Nominating and Corporate Governance Committee.","CEO Robbert Rietbroek thanked Martens for leadership during a period of significant growth for the Company."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-267664","json":"https://secwatch.observer/filing/0001193125-26-267664.json","markdown":"https://secwatch.observer/filing/0001193125-26-267664.md","text":"https://secwatch.observer/filing/0001193125-26-267664.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1408075/000119312526267664/0001193125-26-267664-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1408075/000119312526267664/d103512d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-11T20:36:31.099854+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"09c14b3052","claim":"Philip R. Martens retired as Chairman of the Board at GRAPHIC PACKAGING HOLDING CO.","evidence_excerpt":"Effective June 11, 2026, following the Annual Meeting of Stockholders, Mr. Philip R. Martens retired from his positions as a member and Chairman of the Board of Directors (the “Board”) of Graphic Packaging Holding Company (the “Company”).","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1408075/000119312526267664/0001193125-26-267664-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retired"},{"label":"Role","value":"Chairman of the Board"}],"fact_type":"executive_change"},{"claim_id":"a81a89c989","claim":"Larry M. Venturelli was elected as Chairman of the Board at GRAPHIC PACKAGING HOLDING CO.","evidence_excerpt":"Mr. Larry M. Venturelli, a member of the Board since 2016, was elected Chairman of the Board, effective upon Mr. Martens retirement.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1408075/000119312526267664/0001193125-26-267664-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"elected"},{"label":"Role","value":"Chairman of the Board"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}