{"schema_version":"alpha-profile-public-v1","slug":"warner-biddle","canonical_url":"https://registry.alpha.ac/people/warner-biddle","as_of":"2026-09-21T20:20:16.34907+00:00","published_at":"2026-09-02T02:37:24.326391+00:00","last_reviewed_at":"2026-05-16T04:41:14.492+00:00","identity":{"display_name":"Warner Biddle","headshot_url":null,"headshot_media":null,"profile_kind":"director","role_tags":["director","executive"],"current_role":{"company_name":"Kyverna Therapeutics, Inc.","company_slug":"kyverna-therapeutics-inc","exchange":"NASDAQ","ticker":"KYTX","role_category":"director","title":"Director","committee":null,"is_board_chair":false,"is_independent":false,"valid_from":"2024-01-01","valid_to":null,"is_current":true,"verification_status":"confirmed","confidence":0.85,"evidence":{"source_type":"sec_proxy","source_url":"https://www.sec.gov/Archives/edgar/data/1994702/000119312526152835/kytx-20260410.htm","effective_date":"2026-04-13","last_checked_at":"2026-04-24T23:40:02.494+00:00"}},"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=warner-biddle","suggest_edit_label":"Suggest an edit","suggest_edit_url":"https://terminal.alpha.ac/claim-profile?person=warner-biddle&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":["Warner Biddle has served as Chief Executive Officer and a member of Kyverna's Board since September 2024. He previously worked at Kite Pharma, Inc. as Senior Vice President and Global Head of Commercial, and at Genentech in various leadership roles across multiple therapeutic areas."],"links":[],"sources":[],"featured":[],"competencies":[],"board_preferences":null,"board_service":[{"organization":"Kyverna Therapeutics, Inc.","organizationId":"kyverna-therapeutics-inc","title":"Director","period":"2024-01-01 · current","evidenceLabel":"sec_proxy","evidenceState":"verified","sourceUrl":"https://www.sec.gov/Archives/edgar/data/1994702/000119312526152835/kytx-20260410.htm"}],"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":[{"company_name":"Kyverna Therapeutics, Inc.","company_slug":"kyverna-therapeutics-inc","exchange":"NASDAQ","ticker":"KYTX","role_category":"director","title":"Director","committee":null,"is_board_chair":false,"is_independent":false,"valid_from":"2024-01-01","valid_to":null,"is_current":true,"verification_status":"confirmed","confidence":0.85,"evidence":{"source_type":"sec_proxy","source_url":"https://www.sec.gov/Archives/edgar/data/1994702/000119312526152835/kytx-20260410.htm","effective_date":"2026-04-13","last_checked_at":"2026-04-24T23:40:02.494+00:00"}}],"claims":[{"claim_type":"ai_ml_experience","claim_value":false,"claim_text":"Proxy extraction classified AI/ML experience for Warner Biddle as false.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.72,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T00:44:56.885735+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"KYTX DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/1994702/000119312526152835/kytx-20260410.htm","published_at":"2026-04-13T00:00:00+00:00","last_checked_at":"2026-05-16T00:44:56.779415+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"ai_ml_experience","claim_value":false,"claim_text":"Executive extraction classified AI/ML experience for Warner Biddle as false.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.72,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T04:41:14.702181+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"KYTX DEF 14A executive officers","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/1994702/000119312526152835/kytx-20260410.htm","published_at":"2026-04-13T00:00:00+00:00","last_checked_at":"2026-05-16T04:41:14.554838+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"board_role","claim_value":"Director","claim_text":"Warner Biddle currently serves as Director at Kyverna Therapeutics, Inc..","claim_state":"verified","valid_from":"2026-04-13","valid_to":null,"confidence":0.92,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T00:44:56.849447+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"KYTX DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/1994702/000119312526152835/kytx-20260410.htm","published_at":"2026-04-13T00:00:00+00:00","last_checked_at":"2026-05-16T00:44:56.779415+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"committee_assignments","claim_value":[],"claim_text":"Warner Biddle serves on no disclosed committees.","claim_state":"verified","valid_from":"2026-04-13","valid_to":null,"confidence":0.88,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T00:44:56.86601+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"KYTX DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/1994702/000119312526152835/kytx-20260410.htm","published_at":"2026-04-13T00:00:00+00:00","last_checked_at":"2026-05-16T00:44:56.779415+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"current_executive_company","claim_value":"Kyverna Therapeutics, Inc.","claim_text":"Warner Biddle is linked to Kyverna Therapeutics, Inc. 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":"2026-05-16T00:44:56.983904+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"KYTX DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/1994702/000119312526152835/kytx-20260410.htm","published_at":"2026-04-13T00:00:00+00:00","last_checked_at":"2026-05-16T00:44:56.779415+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"current_executive_role","claim_value":"Chief Executive Officer","claim_text":"Warner Biddle is also listed as Chief Executive Officer.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.85,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T00:44:56.967565+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"KYTX DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/1994702/000119312526152835/kytx-20260410.htm","published_at":"2026-04-13T00:00:00+00:00","last_checked_at":"2026-05-16T00:44:56.779415+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"cybersecurity_experience","claim_value":false,"claim_text":"Proxy extraction classified cybersecurity experience for Warner Biddle as false.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.72,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T00:44:56.919478+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"KYTX DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/1994702/000119312526152835/kytx-20260410.htm","published_at":"2026-04-13T00:00:00+00:00","last_checked_at":"2026-05-16T00:44:56.779415+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"cybersecurity_experience","claim_value":false,"claim_text":"Executive extraction classified cybersecurity experience for Warner Biddle as false.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.72,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T04:41:14.73489+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"KYTX DEF 14A executive officers","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/1994702/000119312526152835/kytx-20260410.htm","published_at":"2026-04-13T00:00:00+00:00","last_checked_at":"2026-05-16T04:41:14.554838+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"executive_company","claim_value":"Kyverna Therapeutics, Inc.","claim_text":"Warner Biddle is associated with Kyverna Therapeutics, Inc..","claim_state":"verified","valid_from":"2026-04-13","valid_to":null,"confidence":0.94,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T04:41:14.685181+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"KYTX DEF 14A executive officers","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/1994702/000119312526152835/kytx-20260410.htm","published_at":"2026-04-13T00:00:00+00:00","last_checked_at":"2026-05-16T04:41:14.554838+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"executive_title","claim_value":"Chief Executive Officer and Director","claim_text":"Warner Biddle is listed as Chief Executive Officer and Director at Kyverna Therapeutics, Inc..","claim_state":"verified","valid_from":"2026-04-13","valid_to":null,"confidence":0.94,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T04:41:14.666169+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"KYTX DEF 14A executive officers","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/1994702/000119312526152835/kytx-20260410.htm","published_at":"2026-04-13T00:00:00+00:00","last_checked_at":"2026-05-16T04:41:14.554838+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"technology_background","claim_value":false,"claim_text":"Proxy extraction classified technology background for Warner Biddle as false.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.72,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T00:44:56.902632+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"KYTX DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/1994702/000119312526152835/kytx-20260410.htm","published_at":"2026-04-13T00:00:00+00:00","last_checked_at":"2026-05-16T00:44:56.779415+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"technology_background","claim_value":false,"claim_text":"Executive extraction classified technology background for Warner Biddle as false.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.72,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T04:41:14.718032+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"KYTX DEF 14A executive officers","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/1994702/000119312526152835/kytx-20260410.htm","published_at":"2026-04-13T00:00:00+00:00","last_checked_at":"2026-05-16T04:41:14.554838+00:00","relation":"supports","excerpt_locator":null}]},{"subject":"alpha:person:warner-biddle","claim_type":"board_service","claim_value":{"tags":[],"title":"Director","period":"2024-01-01 · current","organization":"Kyverna Therapeutics, Inc.","organization_id":"kyverna-therapeutics-inc"},"claim_text":"Director at Kyverna Therapeutics, Inc. (2024-01-01 · current)","valid_from":null,"valid_to":null,"verification_status":"confirmed","date_precision":"period_text_only","evidence":[{"source_url":"https://www.sec.gov/Archives/edgar/data/1994702/000119312526152835/kytx-20260410.htm","label":"sec_proxy","evidence_state":"verified"}],"claim_state":"confirmed","version":1}],"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/warner-biddle#profile","url":"https://registry.alpha.ac/people/warner-biddle","dateModified":"2026-05-16T04:41:14.492+00:00","mainEntity":{"@type":"Person","@id":"https://registry.alpha.ac/people/warner-biddle#person","name":"Warner Biddle","url":"https://registry.alpha.ac/people/warner-biddle","jobTitle":"Director","worksFor":{"@type":"Organization","name":"Kyverna Therapeutics, Inc.","tickerSymbol":"NASDAQ: KYTX"},"affiliation":[{"@type":"OrganizationRole","roleName":"Director","startDate":"2024-01-01","memberOf":{"@type":"Organization","name":"Kyverna Therapeutics, Inc.","url":"https://registry.alpha.ac/companies/kyverna-therapeutics-inc","tickerSymbol":"NASDAQ: KYTX"}}]},"isBasedOn":[{"@type":"CreativeWork","url":"https://www.sec.gov/Archives/edgar/data/1994702/000119312526152835/kytx-20260410.htm","name":"KYTX DEF 14A director slate"}],"mainEntityOfPage":"https://registry.alpha.ac/people/warner-biddle"},"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":6,"corroborated":4,"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":10,"under_review_claim_count":0,"owner_supplied_claim_count":0,"evidence_record_count":4,"distinct_source_count":1,"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":6,"corroborated":4,"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":10,"corroborated_claims":4,"sources":4,"distinct_sources":1,"role_claims":1,"last_reviewed_at":"2026-05-16T04:41:14.492+00:00","observed_at":"2026-09-21T20:20:16.34907+00:00","freshness_days":129}},"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":"warner-biddle","canonical_url":"https://registry.alpha.ac/people/warner-biddle"},"publication":{"published_at":"2026-09-02T02:37:24.326391+00:00","last_reviewed_at":"2026-05-16T04:41:14.492+00:00","as_of":"2026-09-21T20:20:16.34907+00:00"},"representations":{"html":{"href":"https://registry.alpha.ac/people/warner-biddle","media_type":"text/html"},"json":{"href":"https://registry.alpha.ac/api/public/profiles/warner-biddle","media_type":"application/json"},"markdown":{"href":"https://registry.alpha.ac/people/warner-biddle.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}}}