{"schema_version":"alpha-profile-public-v1","slug":"samuel-m-mencoff","canonical_url":"https://registry.alpha.ac/people/samuel-m-mencoff","as_of":"2026-11-09T09:17:00.821318+00:00","published_at":"2026-04-21T02:55:15.270549+00:00","last_reviewed_at":"2026-05-15T19:35:56.426+00:00","identity":{"display_name":"Samuel M. Mencoff","headshot_url":null,"headshot_media":null,"profile_kind":"director","role_tags":["director","executive","board"],"current_role":null,"photo_match":null},"assurance":{"is_claimed":false,"status":"unverified","assurance_level":null,"method":null,"verified_at":null,"expires_at":null},"claiming":{"eligible":true,"label":"Is this you? Claim your Alpha Profile","claim_url":"https://terminal.alpha.ac/claim-profile?person=samuel-m-mencoff","suggest_edit_label":"Suggest an edit","suggest_edit_url":"https://terminal.alpha.ac/claim-profile?person=samuel-m-mencoff&mode=suggest","canonical_record_will_be_reused":true,"canonical_facts_owner_controlled":false},"presentation":{"schema_version":"alpha-profile-presentation-v1","state":"alpha_editorial","version":0,"published_at":null,"headline":null,"headline_evidence":null,"location":null,"photo":null,"cover":null,"about":["Samuel Mencoff has served as a PCA director since January 1999 and as Vice President from 1999-2000. He has been employed by Madison Dearborn Partners since 1993, serving as Co-CEO from 2008-2023 and currently as Senior Advisor. He previously served as Vice President of First Chicago Venture Capital."],"links":[],"sources":[],"featured":[],"competencies":[],"board_preferences":null,"board_service":[],"experience":[],"education":[],"credentials":[],"section_order":null,"hidden_sections":[],"limitations":["Presentation fields do not alter independently verified Alpha Profile facts.","Owner-supplied résumé records retain their field-level evidence state.","Only confirmed company_person_roles with public evidence. Website governed_site_fallback rows are not invented. about/links are stored people.profile_summary/bio and linkedin_url only. Dates stay undisclosed when the role has no start_date. SoFi Bank is not SoFi Technologies."]},"presentation_authority":"confirmed_company_person_roles","roles":[],"claims":[{"claim_type":"ai_expertise","claim_value":{"detail":"Senior Advisor at Madison Dearborn Partners and former Co-Chief Executive Officer.","ai_expertise":false},"claim_text":"SEC-derived executive row classified AI expertise as False.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.94,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-03T15:43:34.281844+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"PKG executive roster source","source_type":"sec_filing","source_tier":3,"source_url":null,"published_at":null,"last_checked_at":"2026-05-03T15:42:45.822845+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"ai_governance_relevance","claim_value":{"reasons":[],"relevant":false},"claim_text":"AI-governance relevance classified as False from role/title and SEC-derived executive context.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.94,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-03T15:43:34.281844+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"PKG executive roster source","source_type":"sec_filing","source_tier":3,"source_url":null,"published_at":null,"last_checked_at":"2026-05-03T15:42:45.822845+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"ai_ml_experience","claim_value":false,"claim_text":"Executive extraction classified AI/ML experience for Samuel M. Mencoff as false.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.72,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-15T00:21:14.10065+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"PKG DEF 14A executive officers","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/75677/000119312526127602/d176963ddef14a.htm","published_at":"2026-03-27T00:00:00+00:00","last_checked_at":"2026-05-15T00:21:13.936782+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"ai_ml_experience","claim_value":false,"claim_text":"Proxy extraction classified AI/ML experience for Samuel M. Mencoff as false.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.72,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-15T19:35:56.593508+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"PKG DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/75677/000119312525064584/d880156ddef14a.htm","published_at":"2025-03-27T00:00:00+00:00","last_checked_at":"2026-05-15T19:35:56.484424+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"board_membership","claim_value":{"ticker":"PKG","role_type":"Director","organization":"Packaging Corporation of America"},"claim_text":"Serves on the board of Packaging Corporation of America as Director.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.95,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-03T01:56:45.974178+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"Packaging Corporation of America director board source","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/75677/000119312525064584/d880156ddef14a.htm","published_at":"2025-03-27T00:00:00+00:00","last_checked_at":"2026-05-03T01:47:46.19743+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"board_role","claim_value":"Lead Independent Director","claim_text":"Samuel M. Mencoff currently serves as Lead Independent Director at Packaging Corporation of America.","claim_state":"verified","valid_from":"2025-03-27","valid_to":null,"confidence":0.92,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-15T19:35:56.558537+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"PKG DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/75677/000119312525064584/d880156ddef14a.htm","published_at":"2025-03-27T00:00:00+00:00","last_checked_at":"2026-05-15T19:35:56.484424+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"committee_assignments","claim_value":["Nominating/Governance","Compensation"],"claim_text":"Samuel M. Mencoff serves on Nominating/Governance, Compensation.","claim_state":"verified","valid_from":"2025-03-27","valid_to":null,"confidence":0.88,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-15T19:35:56.577355+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"PKG DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/75677/000119312525064584/d880156ddef14a.htm","published_at":"2025-03-27T00:00:00+00:00","last_checked_at":"2026-05-15T19:35:56.484424+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"committee_assignments","claim_value":{"committees":["Compensation","Nominating/Governance"]},"claim_text":"Committee assignments at Packaging Corporation of America: Compensation, Nominating/Governance.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.95,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-03T01:56:45.974178+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"Packaging Corporation of America director board source","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/75677/000119312525064584/d880156ddef14a.htm","published_at":"2025-03-27T00:00:00+00:00","last_checked_at":"2026-05-03T01:47:46.19743+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"current_executive_company","claim_value":"Madison Dearborn Partners, LLC","claim_text":"Samuel M. Mencoff is linked to Madison Dearborn Partners, LLC as an operating executive.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.85,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-15T19:35:56.700517+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"PKG DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/75677/000119312525064584/d880156ddef14a.htm","published_at":"2025-03-27T00:00:00+00:00","last_checked_at":"2026-05-15T19:35:56.484424+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"current_executive_role","claim_value":"Senior Advisor","claim_text":"Samuel M. Mencoff is also listed as Senior Advisor.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.85,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-15T19:35:56.683774+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"PKG DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/75677/000119312525064584/d880156ddef14a.htm","published_at":"2025-03-27T00:00:00+00:00","last_checked_at":"2026-05-15T19:35:56.484424+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"cybersecurity_experience","claim_value":false,"claim_text":"Executive extraction classified cybersecurity experience for Samuel M. Mencoff as false.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.72,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-15T00:21:14.133191+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"PKG DEF 14A executive officers","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/75677/000119312526127602/d176963ddef14a.htm","published_at":"2026-03-27T00:00:00+00:00","last_checked_at":"2026-05-15T00:21:13.936782+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"cybersecurity_experience","claim_value":false,"claim_text":"Proxy extraction classified cybersecurity experience for Samuel M. Mencoff as false.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.72,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-15T19:35:56.627398+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"PKG DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/75677/000119312525064584/d880156ddef14a.htm","published_at":"2025-03-27T00:00:00+00:00","last_checked_at":"2026-05-15T19:35:56.484424+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"executive_company","claim_value":"Packaging Corporation of America","claim_text":"Samuel M. Mencoff is associated with Packaging Corporation of America.","claim_state":"verified","valid_from":"2026-03-27","valid_to":null,"confidence":0.94,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-15T00:21:14.084817+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"PKG DEF 14A executive officers","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/75677/000119312526127602/d176963ddef14a.htm","published_at":"2026-03-27T00:00:00+00:00","last_checked_at":"2026-05-15T00:21:13.936782+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"executive_company","claim_value":{"ticker":"PKG","company":"Packaging Corporation of America"},"claim_text":"Samuel M. Mencoff is associated with Packaging Corporation of America.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.94,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-03T15:43:34.281844+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"PKG executive roster source","source_type":"sec_filing","source_tier":3,"source_url":null,"published_at":null,"last_checked_at":"2026-05-03T15:42:45.822845+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"executive_function","claim_value":{"role_family":"other_executive","role_type_normalized":"other_executive"},"claim_text":"Samuel M. Mencoff maps to the other executive executive function.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.94,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-03T15:43:34.281844+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"PKG executive roster source","source_type":"sec_filing","source_tier":3,"source_url":null,"published_at":null,"last_checked_at":"2026-05-03T15:42:45.822845+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"executive_title","claim_value":"Director","claim_text":"Samuel M. Mencoff is listed as Director at Packaging Corporation of America.","claim_state":"verified","valid_from":"2026-03-27","valid_to":null,"confidence":0.94,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-15T00:21:14.041002+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"PKG DEF 14A executive officers","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/75677/000119312526127602/d176963ddef14a.htm","published_at":"2026-03-27T00:00:00+00:00","last_checked_at":"2026-05-15T00:21:13.936782+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"executive_title","claim_value":{"title":"Senior Advisor","role_type_normalized":"other_executive"},"claim_text":"Samuel M. Mencoff is listed as Senior Advisor at Packaging Corporation of America.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.94,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-03T15:43:34.281844+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"PKG executive roster source","source_type":"sec_filing","source_tier":3,"source_url":null,"published_at":null,"last_checked_at":"2026-05-03T15:42:45.822845+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"independence_status","claim_value":{"is_independent":true},"claim_text":"Board independence status at Packaging Corporation of America: True.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.95,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-03T01:56:45.974178+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"Packaging Corporation of America director board source","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/75677/000119312525064584/d880156ddef14a.htm","published_at":"2025-03-27T00:00:00+00:00","last_checked_at":"2026-05-03T01:47:46.19743+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"other_company_role","claim_value":{"role":"Senior Advisor","company":"Madison Dearborn Partners"},"claim_text":"Samuel M. Mencoff is also linked to Madison Dearborn Partners as Senior Advisor.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.7,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-15T00:21:14.165571+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"PKG DEF 14A executive officers","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/75677/000119312526127602/d176963ddef14a.htm","published_at":"2026-03-27T00:00:00+00:00","last_checked_at":"2026-05-15T00:21:13.936782+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"technology_background","claim_value":false,"claim_text":"Executive extraction classified technology background for Samuel M. Mencoff as false.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.72,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-15T00:21:14.116278+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"PKG DEF 14A executive officers","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/75677/000119312526127602/d176963ddef14a.htm","published_at":"2026-03-27T00:00:00+00:00","last_checked_at":"2026-05-15T00:21:13.936782+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"technology_background","claim_value":false,"claim_text":"Proxy extraction classified technology background for Samuel M. Mencoff as false.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.72,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-15T19:35:56.609958+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"PKG DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/75677/000119312525064584/d880156ddef14a.htm","published_at":"2025-03-27T00:00:00+00:00","last_checked_at":"2026-05-15T19:35:56.484424+00:00","relation":"supports","excerpt_locator":null}]}],"network":{"schema_version":"alpha-profile-network-public-v1","relationships":[],"relationship_pathfinding":false,"authentication_prompt":"Sign in to see how you're connected.","limitations":["Representative factual associations only.","Shared contexts do not assert personal acquaintance.","Anonymous graph traversal is not available."]},"permissions":{"classification":"open_public_projection","public_retrieval":true,"agent_retrieval":true,"redistribution":false,"model_training":false,"relationship_pathfinding":false,"direct_contact":false},"limitations":["Only permissioned public claims and evidence are included.","Absence of a claim is not evidence that the underlying fact is false.","Public retrieval does not grant model-training or redistribution rights.","Private relationships and Council activity are excluded."],"structured_data":{"@context":"https://schema.org","@type":"ProfilePage","@id":"https://registry.alpha.ac/people/samuel-m-mencoff#profile","url":"https://registry.alpha.ac/people/samuel-m-mencoff","dateModified":"2026-05-15T19:35:56.426+00:00","mainEntity":{"@type":"Person","@id":"https://registry.alpha.ac/people/samuel-m-mencoff#person","name":"Samuel M. Mencoff","url":"https://registry.alpha.ac/people/samuel-m-mencoff"},"isBasedOn":[{"@type":"CreativeWork","url":"https://www.sec.gov/Archives/edgar/data/75677/000119312526127602/d176963ddef14a.htm","name":"PKG DEF 14A executive officers"},{"@type":"CreativeWork","url":"https://www.sec.gov/Archives/edgar/data/75677/000119312525064584/d880156ddef14a.htm","name":"PKG DEF 14A director slate"}],"mainEntityOfPage":"https://registry.alpha.ac/people/samuel-m-mencoff"},"registry_intelligence":{"schema_version":"alpha-registry-intelligence-v1","record_version":"d751713988987e9331980363e24189ce","subject":"alpha:person:samuel-m-mencoff","as_of":"2026-11-09T09:17:01.073238+00:00","recorded_at":"2026-11-09T09:17:01.073238+00:00","availability":"available","records":[],"next_offset":null,"limitations":["Only explicitly published, rights-cleared records. Missing records do not establish absence, safety, or complete coverage."]},"trust":{"schema_version":"alpha-profile-trust-v1","verification":{"schema_version":"alpha-verification-states-v1","state":"corroborated","identity_ownership":"unclaimed","assurance_level":null,"claim_state_counts":{"source_reported":11,"corroborated":5,"alpha_verified":0,"disputed":0,"superseded":0},"derivation":"claim_states+identity_ownership","summary":"At least one published claim is corroborated by two or more public sources. Profile ownership is unclaimed."},"aggregation":{"schema_version":"alpha-claim-aggregation-v1","published_claim_count":16,"under_review_claim_count":0,"owner_supplied_claim_count":0,"evidence_record_count":4,"distinct_source_count":3,"conflicts":[],"conflict_count":0,"headline_conflict_count":0,"internal_review_conflict_count":0,"contradiction_types":[],"headline_conflict_types":[],"verification":{"schema_version":"alpha-verification-states-v1","state":"corroborated","identity_ownership":"unclaimed","assurance_level":null,"claim_state_counts":{"source_reported":11,"corroborated":5,"alpha_verified":0,"disputed":0,"superseded":0},"derivation":"claim_states+identity_ownership","summary":"At least one published claim is corroborated by two or more public sources. Profile ownership is unclaimed."},"coverage":{"schema_version":"alpha-coverage-metric-v1","published_claims":16,"corroborated_claims":5,"sources":4,"distinct_sources":3,"role_claims":0,"last_reviewed_at":"2026-05-15T19:35:56.426+00:00","observed_at":"2026-11-09T09:17:00.821318+00:00","freshness_days":178}},"rights":{"public_retrieval":"allowed","agent_retrieval":"allowed","redistribution":"not_granted","model_training":"not_granted","commercial_use":"not_specified","relationship_pathfinding":"not_granted","direct_contact":"not_granted"}},"projection":{"schema_version":"alpha-profile-projection-v5","entity":{"kind":"person","slug":"samuel-m-mencoff","canonical_url":"https://registry.alpha.ac/people/samuel-m-mencoff"},"publication":{"published_at":"2026-04-21T02:55:15.270549+00:00","last_reviewed_at":"2026-05-15T19:35:56.426+00:00","as_of":"2026-11-09T09:17:00.821318+00:00"},"representations":{"html":{"href":"https://registry.alpha.ac/people/samuel-m-mencoff","media_type":"text/html"},"json":{"href":"https://registry.alpha.ac/api/public/profiles/samuel-m-mencoff","media_type":"application/json"},"markdown":{"href":"https://registry.alpha.ac/people/samuel-m-mencoff.md","media_type":"text/markdown"},"structured_data":{"embedded":true,"media_type":"application/ld+json"},"share_image":null},"permissions":{"public_retrieval":true,"agent_retrieval":true,"redistribution":false,"model_training":false,"relationship_pathfinding":false,"direct_contact":false}}}