{"schema_version":"alpha-governance-record-v2","alpha_id":"alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a","record_version":"public-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce","ontology_version":"alpha-governance-ontology-v1","as_of":"2026-10-19T10:52:19.159293+00:00","published_at":"2026-10-19T04:46:16.87109+00:00","section":"events","data":{"state":"PUBLISHED","derivation_version":"alpha-governance-event-derivation-v2","events":[{"event_id":"alpha:event:transition:1g8k1os16feb14","event_type":"EXECUTIVE_APPOINTED","effective_at":"2026-04-29","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:ali-shorooghi-atec","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:14"],"evidence_ids":["alpha:projection-evidence:document:a10211b698507f95d040d042324a3ddf2ba649a79093ae257964b29b140d58eb"],"summary":"Ali Shorooghi executive of Alphatec Holdings, Inc., effective 2026-04-29.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:p0qh6y1lz8mm0","event_type":"EXECUTIVE_APPOINTED","effective_at":"2026-04-29","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:craig-e-hunsaker-atec","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:15"],"evidence_ids":["alpha:projection-evidence:document:f31e6b61b003723c7c7a74b8bd745515eb7cf3e739778dc367f621be22111a7e"],"summary":"Craig E. Hunsaker executive of Alphatec Holdings, Inc., effective 2026-04-29.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1xv1m5rjyf695","event_type":"EXECUTIVE_APPOINTED","effective_at":"2026-04-29","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:david-p-sponsel-atec","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:16"],"evidence_ids":["alpha:projection-evidence:document:72cb0c2957b2c6f60f63597265ba43e10b403476a428987b5bdd66372eed56a5"],"summary":"David P. Sponsel executive of Alphatec Holdings, Inc., effective 2026-04-29.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1ooml0v1arfgcj","event_type":"CFO_CHANGED","effective_at":"2026-04-29","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:j-todd-koning-atec","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:17"],"evidence_ids":["alpha:projection-evidence:document:f0529f05081ed0503e79df42a44c19c5be9d7fff0031013206de064138d31be5"],"summary":"J. Todd Koning executive of Alphatec Holdings, Inc., effective 2026-04-29.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:10byohjr0epg3","event_type":"EXECUTIVE_APPOINTED","effective_at":"2026-04-29","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:joseph-walland-atec","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:18"],"evidence_ids":["alpha:projection-evidence:document:407782d12f29538dbe717513bfc20e68bcc8fa51bc918fce35ccdbf90bc86ab9"],"summary":"Joseph Walland executive of Alphatec Holdings, Inc., effective 2026-04-29.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:szunpi1dqdzba","event_type":"CEO_CHANGED","effective_at":"2026-04-29","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:patrick-s-miles","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:19"],"evidence_ids":["alpha:projection-evidence:document:f85fec50ba29ab52b1a8a46212776d507059507f8f17ad9fa414a5a8470040fc"],"summary":"Patrick S. Miles executive of Alphatec Holdings, Inc., effective 2026-04-29.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:124d5b2znf28y","event_type":"EXECUTIVE_APPOINTED","effective_at":"2026-04-29","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:scott-lish-atec","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:20"],"evidence_ids":["alpha:projection-evidence:document:b5900169a15db62da4b819e5cf2529a34ae5151241c0d1760a793c78823f9a0a"],"summary":"Scott Lish executive of Alphatec Holdings, Inc., effective 2026-04-29.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1odccj7wjhy77","event_type":"GC_CHANGED","effective_at":"2026-04-29","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:tyson-marshall-atec","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:21"],"evidence_ids":["alpha:projection-evidence:document:29e514fc6ce38a1ecf35673c22f8272027b727510925f17b77dc0b9d7a36d397"],"summary":"Tyson Marshall executive of Alphatec Holdings, Inc., effective 2026-04-29.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:m5w6brhxiabr","event_type":"DIRECTOR_APPOINTED","effective_at":"2024-01-01","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:keith-valentine","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:9"],"evidence_ids":["alpha:projection-evidence:document:2ec68f1c6e23ba8c09a2997bf25e94d8a2546fe430244050211257b850628893"],"summary":"Kevin Valentine seat on Alphatec Holdings, Inc., effective 2024-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:157ks1ou1hmv2","event_type":"COMMITTEE_MEMBER_ADDED","effective_at":"2024-01-01","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:keith-valentine","alpha:committee:alphatec-holdings-inc:nominating-and-governance"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:committee_record:30"],"evidence_ids":["alpha:projection-evidence:2adcbd754d92c586452a1bd49b8a710ba9480156145e207ebe2d1a25e1030b8c"],"summary":"Kevin Valentine member of Nominating and Governance, effective 2024-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:167yjm01erznk4","event_type":"DIRECTOR_APPOINTED","effective_at":"2023-01-01","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:david-demski","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:5"],"evidence_ids":["alpha:projection-evidence:document:2ec68f1c6e23ba8c09a2997bf25e94d8a2546fe430244050211257b850628893"],"summary":"David Demski seat on Alphatec Holdings, Inc., effective 2023-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1e0h0lyqgiv4o","event_type":"DIRECTOR_APPOINTED","effective_at":"2020-01-01","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:david-r-pelizzon","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:6"],"evidence_ids":["alpha:projection-evidence:document:2ec68f1c6e23ba8c09a2997bf25e94d8a2546fe430244050211257b850628893"],"summary":"David R. Pelizzon seat on Alphatec Holdings, Inc., effective 2020-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1f9tq0g11wgr7s","event_type":"DIRECTOR_APPOINTED","effective_at":"2019-01-01","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:karen-k-mcginnis","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:8"],"evidence_ids":["alpha:projection-evidence:document:2ec68f1c6e23ba8c09a2997bf25e94d8a2546fe430244050211257b850628893"],"summary":"Karen K. McGinnis seat on Alphatec Holdings, Inc., effective 2019-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1w6fdvo19elrjs","event_type":"COMMITTEE_CREATED","effective_at":"2019-01-01","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:committee:alphatec-holdings-inc:audit-chair-compensation","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:8"],"evidence_ids":["alpha:projection-evidence:document:2ec68f1c6e23ba8c09a2997bf25e94d8a2546fe430244050211257b850628893"],"summary":"Audit · Chair; Compensation committee of Alphatec Holdings, Inc., effective 2019-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:12tft8d5pnt9d","event_type":"COMMITTEE_MEMBER_ADDED","effective_at":"2019-01-01","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:karen-k-mcginnis","alpha:committee:alphatec-holdings-inc:audit-chair-compensation"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:8"],"evidence_ids":["alpha:projection-evidence:document:2ec68f1c6e23ba8c09a2997bf25e94d8a2546fe430244050211257b850628893"],"summary":"Karen K. McGinnis member of Audit · Chair; Compensation, effective 2019-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:2sx3khh6nxy9","event_type":"DIRECTOR_APPOINTED","effective_at":"2017-01-01","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:jeffrey-p-rydin","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:7"],"evidence_ids":["alpha:projection-evidence:document:2ec68f1c6e23ba8c09a2997bf25e94d8a2546fe430244050211257b850628893"],"summary":"Jeffrey P. Rydin seat on Alphatec Holdings, Inc., effective 2017-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:god6yal43wyu","event_type":"DIRECTOR_APPOINTED","effective_at":"2017-01-01","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:patrick-s-miles-2","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:11"],"evidence_ids":["alpha:projection-evidence:document:2ec68f1c6e23ba8c09a2997bf25e94d8a2546fe430244050211257b850628893"],"summary":"Patrick S. Miles seat on Alphatec Holdings, Inc., effective 2017-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1wxc1qd1hq4frp","event_type":"DIRECTOR_APPOINTED","effective_at":"2017-01-01","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:quentin-blackford","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:12"],"evidence_ids":["alpha:projection-evidence:document:2ec68f1c6e23ba8c09a2997bf25e94d8a2546fe430244050211257b850628893"],"summary":"Quentin Blackford seat on Alphatec Holdings, Inc., effective 2017-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:19ihgs068wcqk","event_type":"DIRECTOR_APPOINTED","effective_at":"2017-01-01","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:ward-w-woods","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:13"],"evidence_ids":["alpha:projection-evidence:document:2ec68f1c6e23ba8c09a2997bf25e94d8a2546fe430244050211257b850628893"],"summary":"Ward W. Woods seat on Alphatec Holdings, Inc., effective 2017-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:t4letl1k3muat","event_type":"COMMITTEE_CREATED","effective_at":"2017-01-01","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:committee:alphatec-holdings-inc:audit-compensation","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:12"],"evidence_ids":["alpha:projection-evidence:document:2ec68f1c6e23ba8c09a2997bf25e94d8a2546fe430244050211257b850628893"],"summary":"Audit; Compensation committee of Alphatec Holdings, Inc., effective 2017-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:106piss1lo6948","event_type":"COMMITTEE_MEMBER_ADDED","effective_at":"2017-01-01","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:quentin-blackford","alpha:committee:alphatec-holdings-inc:audit-compensation"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:12"],"evidence_ids":["alpha:projection-evidence:document:2ec68f1c6e23ba8c09a2997bf25e94d8a2546fe430244050211257b850628893"],"summary":"Quentin Blackford member of Audit; Compensation, effective 2017-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1v0vyec1inypqc","event_type":"COMMITTEE_CREATED","effective_at":"2017-01-01","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:committee:alphatec-holdings-inc:compensation-chair","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:13"],"evidence_ids":["alpha:projection-evidence:document:2ec68f1c6e23ba8c09a2997bf25e94d8a2546fe430244050211257b850628893"],"summary":"Compensation · Chair committee of Alphatec Holdings, Inc., effective 2017-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:jxcqjt7e35ol","event_type":"COMMITTEE_MEMBER_ADDED","effective_at":"2017-01-01","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:ward-w-woods","alpha:committee:alphatec-holdings-inc:compensation-chair"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:13"],"evidence_ids":["alpha:projection-evidence:document:2ec68f1c6e23ba8c09a2997bf25e94d8a2546fe430244050211257b850628893"],"summary":"Ward W. Woods member of Compensation · Chair, effective 2017-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1n3cdmg13vjpb8","event_type":"DIRECTOR_APPOINTED","effective_at":"2005-01-01","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:mortimer-berkowitz-iii","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:10"],"evidence_ids":["alpha:projection-evidence:document:2ec68f1c6e23ba8c09a2997bf25e94d8a2546fe430244050211257b850628893"],"summary":"Mortimer Berkowitz III seat on Alphatec Holdings, Inc., effective 2005-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:ffjhou1odjoug","event_type":"COMMITTEE_CREATED","effective_at":"2005-01-01","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:committee:alphatec-holdings-inc:audit-nominating-and-governance-chair","alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:10"],"evidence_ids":["alpha:projection-evidence:document:2ec68f1c6e23ba8c09a2997bf25e94d8a2546fe430244050211257b850628893"],"summary":"Audit; Nominating and Governance · Chair committee of Alphatec Holdings, Inc., effective 2005-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1vh6daw1060kim","event_type":"COMMITTEE_MEMBER_ADDED","effective_at":"2005-01-01","detected_at":"2026-10-19T04:46:16.87109+00:00","subject_ids":["alpha:person:mortimer-berkowitz-iii","alpha:committee:alphatec-holdings-inc:audit-nominating-and-governance-chair"],"caused_claim_ids":["alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:10"],"evidence_ids":["alpha:projection-evidence:document:2ec68f1c6e23ba8c09a2997bf25e94d8a2546fe430244050211257b850628893"],"summary":"Mortimer Berkowitz III member of Audit; Nominating and Governance · Chair, effective 2005-01-01.","derivation":"temporal_relationship_change"}]},"claims":[{"id":"alpha:claim:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a:leadership_role:5","subject_id":"alpha:company:4b9bcf17-54ee-4ef8-b816-9a54024f208a","predicate":"alpha:hasBoardOrCommitteeRole","object_id":"alpha:person:david-demski","object_label":"David Demski","object_source_name_forms":[],"value":"David Demski: Director","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:david-demski","name":"David Demski"},"title":"Director","role_category":"director","committee":null,"is_board_chair":false,"is_independent":false,"start_date":"2023-01-01","end_date":null},"corroboration_count":1,"source_claim_count":1,"valid_from":"2023-01-01","valid_to":null,"recorded_at":"2026-10-19T04:46:16.87109+00:00","sources":[{"id":"alpha:projection-evidence:document:2ec68f1c6e23ba8c09a2997bf25e94d8a2546fe430244050211257b850628893","identity_scope":"source_document_reference","source_type":"sec_proxy","title":"Alphatec Holdings, Inc. 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