{"schema_version":"alpha-governance-record-v2","alpha_id":"alpha:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05","record_version":"public-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce","ontology_version":"alpha-governance-ontology-v1","as_of":"2026-10-16T14:03:24.190117+00:00","published_at":"2026-10-16T13:51:31.052224+00:00","section":"events","data":{"state":"PUBLISHED","derivation_version":"alpha-governance-event-derivation-v2","events":[{"event_id":"alpha:event:transition:9k3tnhr6wewl","event_type":"CEO_CHANGED","effective_at":"2026-02-25","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:person:leon-j-topalian","alpha:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:17"],"evidence_ids":["alpha:projection-evidence:document:a97ee902cbf5edcb55b697b662045dd9f3b901888b4babcd1a16f730d720e7b7"],"summary":"Leon J. Topalian executive of Nucor, effective 2026-02-25.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:rfeye11um87u9","event_type":"EXECUTIVE_APPOINTED","effective_at":"2026-02-25","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:person:michael-d-keller","alpha:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:18"],"evidence_ids":["alpha:projection-evidence:document:2fdba0aa5f16c2d848cc8dd5cd9ee278056655a1ef5fb378e30a3c89676b3bdf"],"summary":"Michael D. Keller executive of Nucor, effective 2026-02-25.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:xmxixidjcuj8","event_type":"CFO_CHANGED","effective_at":"2026-02-25","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:person:stephen-d-laxton","alpha:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:19"],"evidence_ids":["alpha:projection-evidence:document:928a5e72d078e573f25fe3fb80fddd5a1428c8b624289075d4db468dc080fbbb"],"summary":"Stephen D. Laxton executive of Nucor, effective 2026-02-25.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:931w902b71gi","event_type":"DIRECTOR_APPOINTED","effective_at":"2023-01-01","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:person:nicholas-c-gangestad","alpha:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:15"],"evidence_ids":["alpha:projection-evidence:document:1328690e010a5154ff4ada929df22273f556be8e5252b31729fd2b6a627edcac"],"summary":"Nicholas C. Gangestad seat on Nucor, effective 2023-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:15kzl491ql3x0v","event_type":"COMMITTEE_MEMBER_ADDED","effective_at":"2023-01-01","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:person:nicholas-c-gangestad","alpha:committee:nucor-corp:audit-compensation-and-executive-development-governance-and-nominating"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:15"],"evidence_ids":["alpha:projection-evidence:document:1328690e010a5154ff4ada929df22273f556be8e5252b31729fd2b6a627edcac"],"summary":"Nicholas C. Gangestad member of Audit; Compensation and Executive Development; Governance and Nominating, effective 2023-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1czrjjg19fdwhc","event_type":"DIRECTOR_APPOINTED","effective_at":"2022-01-01","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:person:michael-w-lamach","alpha:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:12"],"evidence_ids":["alpha:projection-evidence:document:1328690e010a5154ff4ada929df22273f556be8e5252b31729fd2b6a627edcac"],"summary":"Michael W. Lamach seat on Nucor, effective 2022-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1erz9yo4w5n2w","event_type":"COMMITTEE_CREATED","effective_at":"2022-01-01","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:committee:nucor-corp:audit-compensation-and-executive-development-governance-and-nominating","alpha:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:12"],"evidence_ids":["alpha:projection-evidence:document:1328690e010a5154ff4ada929df22273f556be8e5252b31729fd2b6a627edcac"],"summary":"Audit; Compensation and Executive Development; Governance and Nominating committee of Nucor, effective 2022-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:182o7phu54mxp","event_type":"COMMITTEE_MEMBER_ADDED","effective_at":"2022-01-01","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:person:michael-w-lamach","alpha:committee:nucor-corp:audit-compensation-and-executive-development-governance-and-nominating"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:12"],"evidence_ids":["alpha:projection-evidence:document:1328690e010a5154ff4ada929df22273f556be8e5252b31729fd2b6a627edcac"],"summary":"Michael W. Lamach member of Audit; Compensation and Executive Development; Governance and Nominating, effective 2022-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:v9vujbv750d5","event_type":"DIRECTOR_APPOINTED","effective_at":"2021-01-01","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:person:norma-b-clayton","alpha:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:14"],"evidence_ids":["alpha:projection-evidence:document:1328690e010a5154ff4ada929df22273f556be8e5252b31729fd2b6a627edcac"],"summary":"Natasha L. Clayton seat on Nucor, effective 2021-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:5p0a72agmwf8","event_type":"COMMITTEE_MEMBER_ADDED","effective_at":"2021-01-01","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:person:norma-b-clayton","alpha:committee:nucor-corp:audit-compensation-and-executive-development-governance-and-nominating"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:14"],"evidence_ids":["alpha:projection-evidence:document:1328690e010a5154ff4ada929df22273f556be8e5252b31729fd2b6a627edcac"],"summary":"Natasha L. Clayton member of Audit; Compensation and Executive Development; Governance and Nominating, effective 2021-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:181pej1oiu6gh","event_type":"DIRECTOR_APPOINTED","effective_at":"2020-01-01","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:person:leon-j-topalian","alpha:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:11"],"evidence_ids":["alpha:projection-evidence:document:1328690e010a5154ff4ada929df22273f556be8e5252b31729fd2b6a627edcac"],"summary":"Leon J. Topalian seat on Nucor, effective 2020-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1d8ny891l87gvd","event_type":"DIRECTOR_APPOINTED","effective_at":"2019-01-01","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:person:nadja-y-west","alpha:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:13"],"evidence_ids":["alpha:projection-evidence:document:1328690e010a5154ff4ada929df22273f556be8e5252b31729fd2b6a627edcac"],"summary":"Nadja Y. West seat on Nucor, effective 2019-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1ta4lzu1ukev6w","event_type":"COMMITTEE_MEMBER_ADDED","effective_at":"2019-01-01","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:person:nadja-y-west","alpha:committee:nucor-corp:audit-compensation-and-executive-development-governance-and-nominating"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:13"],"evidence_ids":["alpha:projection-evidence:document:1328690e010a5154ff4ada929df22273f556be8e5252b31729fd2b6a627edcac"],"summary":"Nadja Y. West member of Audit; Compensation and Executive Development; Governance and Nominating, effective 2019-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:6d6rl31gaw0ob","event_type":"DIRECTOR_APPOINTED","effective_at":"2016-01-01","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:person:patrick-j-dempsey","alpha:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:16"],"evidence_ids":["alpha:projection-evidence:document:1328690e010a5154ff4ada929df22273f556be8e5252b31729fd2b6a627edcac"],"summary":"Paula Dempsey seat on Nucor, effective 2016-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1hvds5l705w8v","event_type":"COMMITTEE_CREATED","effective_at":"2016-01-01","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:committee:nucor-corp:audit-compensation-and-executive-development-chair-governance-and-nominating","alpha:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:16"],"evidence_ids":["alpha:projection-evidence:document:1328690e010a5154ff4ada929df22273f556be8e5252b31729fd2b6a627edcac"],"summary":"Audit; Compensation and Executive Development · Chair; Governance and Nominating committee of Nucor, effective 2016-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:3kku66c4uf56","event_type":"COMMITTEE_MEMBER_ADDED","effective_at":"2016-01-01","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:person:patrick-j-dempsey","alpha:committee:nucor-corp:audit-compensation-and-executive-development-chair-governance-and-nominating"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:16"],"evidence_ids":["alpha:projection-evidence:document:1328690e010a5154ff4ada929df22273f556be8e5252b31729fd2b6a627edcac"],"summary":"Paula Dempsey member of Audit; Compensation and Executive Development · Chair; Governance and Nominating, effective 2016-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:mhwpyf36gti","event_type":"DIRECTOR_APPOINTED","effective_at":"2015-01-01","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:person:laurette-t-koellner","alpha:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:10"],"evidence_ids":["alpha:projection-evidence:document:1328690e010a5154ff4ada929df22273f556be8e5252b31729fd2b6a627edcac"],"summary":"Laurette T. Koellner seat on Nucor, effective 2015-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1fre2s81xfg862","event_type":"COMMITTEE_CREATED","effective_at":"2015-01-01","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:committee:nucor-corp:audit-chair-compensation-and-executive-development-governance-and-nominating","alpha:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:10"],"evidence_ids":["alpha:projection-evidence:document:1328690e010a5154ff4ada929df22273f556be8e5252b31729fd2b6a627edcac"],"summary":"Audit · Chair; Compensation and Executive Development; Governance and Nominating committee of Nucor, effective 2015-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1jy03yxxiahh7","event_type":"COMMITTEE_MEMBER_ADDED","effective_at":"2015-01-01","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:person:laurette-t-koellner","alpha:committee:nucor-corp:audit-chair-compensation-and-executive-development-governance-and-nominating"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:10"],"evidence_ids":["alpha:projection-evidence:document:1328690e010a5154ff4ada929df22273f556be8e5252b31729fd2b6a627edcac"],"summary":"Laurette T. Koellner member of Audit · Chair; Compensation and Executive Development; Governance and Nominating, effective 2015-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1xud2mybid08i","event_type":"DIRECTOR_APPOINTED","effective_at":"2008-01-01","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:person:christopher-j-kearney","alpha:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:9"],"evidence_ids":["alpha:projection-evidence:document:1328690e010a5154ff4ada929df22273f556be8e5252b31729fd2b6a627edcac"],"summary":"Colleen Kearney seat on Nucor, effective 2008-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:huippg1mfxb32","event_type":"COMMITTEE_CREATED","effective_at":"2008-01-01","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:committee:nucor-corp:audit-compensation-and-executive-development-governance-and-nominating-chair","alpha:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:9"],"evidence_ids":["alpha:projection-evidence:document:1328690e010a5154ff4ada929df22273f556be8e5252b31729fd2b6a627edcac"],"summary":"Audit; Compensation and Executive Development; Governance and Nominating · Chair committee of Nucor, effective 2008-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1f72ssf1bxmpz7","event_type":"COMMITTEE_MEMBER_ADDED","effective_at":"2008-01-01","detected_at":"2026-10-16T13:51:31.052224+00:00","subject_ids":["alpha:person:christopher-j-kearney","alpha:committee:nucor-corp:audit-compensation-and-executive-development-governance-and-nominating-chair"],"caused_claim_ids":["alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:9"],"evidence_ids":["alpha:projection-evidence:document:1328690e010a5154ff4ada929df22273f556be8e5252b31729fd2b6a627edcac"],"summary":"Colleen Kearney member of Audit; Compensation and Executive Development; Governance and Nominating · Chair, effective 2008-01-01.","derivation":"temporal_relationship_change"}]},"claims":[{"id":"alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:9","subject_id":"alpha:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05","predicate":"alpha:hasBoardOrCommitteeRole","object_id":"alpha:person:christopher-j-kearney","object_label":"Colleen Kearney","object_source_name_forms":[],"value":"Colleen Kearney: Director, Audit; Compensation and Executive Development; Governance and Nominating · Chair","claim_type":"leadership_role","predicate_id":"alpha:predicate:leadership_role","predicate_version":1,"machine_key":"leadership_role","human_label":"Leadership Role","governed_predicate":true,"machine_value":{"kind":"board_seat","person":{"alpha_id":"alpha:person:christopher-j-kearney","name":"Colleen Kearney"},"title":"Director","role_category":"director","committee":"Audit; Compensation and Executive Development; Governance and Nominating · Chair","is_board_chair":false,"is_independent":true,"start_date":"2008-01-01","end_date":null},"corroboration_count":1,"source_claim_count":1,"valid_from":"2008-01-01","valid_to":null,"recorded_at":"2026-10-16T13:51:31.052224+00:00","sources":[{"id":"alpha:projection-evidence:document:1328690e010a5154ff4ada929df22273f556be8e5252b31729fd2b6a627edcac","identity_scope":"source_document_reference","source_type":"sec_proxy","title":"NUCOR CORP DEF 14A 2026-03-27","publisher":null,"url":"https://www.sec.gov/Archives/edgar/data/73309/000119312526127739/d21430ddef14a.htm","source_date":"2026-03-27","retrieved_at":"2026-05-07T18:25:31.497+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}}],"source_date":"2026-03-27","effective_from":"2008-01-01","effective_until":null,"observed_at":"2026-10-16T13:51:31.052224+00:00","reviewed_at":"2026-10-16T13:51:31.052224+00:00","verified_at":null,"verification_state":"source_reported","legacy_verification_label":"confirmed","review_state":"none","confidence":0.85,"assertion_type":"source_reported","evidence_state":"linked","publication_state":"PUBLISHED","record_version":"public-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce"},{"id":"alpha:claim:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05:leadership_role:10","subject_id":"alpha:company:95bda8e4-ea08-4b13-bbe6-6494367d3b05","predicate":"alpha:hasBoardOrCommitteeRole","object_id":"alpha:person:laurette-t-koellner","object_label":"Laurette T. 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