{"schema_version":"alpha-profile-public-v1","slug":"john-j-gebbia","canonical_url":"https://registry.alpha.ac/people/john-j-gebbia","as_of":"2026-09-15T17:38:20.721099+00:00","published_at":"2026-09-02T02:37:22.763389+00:00","last_reviewed_at":"2026-05-16T08:16:27.129+00:00","identity":{"display_name":"John J. Gebbia","headshot_url":null,"headshot_media":null,"profile_kind":"director","role_tags":["director","executive"],"current_role":{"company_name":"SIEBERT FINANCIAL CORP","company_slug":"siebert-financial-corp","exchange":"NASDAQ","ticker":"SIEB","role_category":"director","title":"Director","committee":null,"is_board_chair":false,"is_independent":null,"valid_from":null,"valid_to":null,"is_current":true,"verification_status":"confirmed","confidence":1,"evidence":{"source_type":"sec_form_ownership","source_url":"https://www.sec.gov/Archives/edgar/data/65596/000121390026027152/ownership.xml","effective_date":"2026-03-09","last_checked_at":"2026-08-06T10:33:03.035+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=john-j-gebbia","suggest_edit_label":"Suggest an edit","suggest_edit_url":"https://terminal.alpha.ac/claim-profile?person=john-j-gebbia&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":["Commenced employment in brokerage industry in 1959. Became Executive Vice President of Walston Company in 1962, later became CEO of Jesup Lamont which he purchased in 1983. Owned and controlled various brokerage firms including Kennedy Cabot Co., sold to Toronto Dominion Bank in 1997 for $160,000,000."],"links":[],"sources":[],"featured":[],"competencies":[],"board_preferences":null,"board_service":[{"organization":"SIEBERT FINANCIAL CORP","organizationId":"siebert-financial-corp","title":"Director","period":"Current · start date not disclosed","evidenceLabel":"sec_form_ownership","evidenceState":"verified","sourceUrl":"https://www.sec.gov/Archives/edgar/data/65596/000121390026027152/ownership.xml"}],"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":"SIEBERT FINANCIAL CORP","company_slug":"siebert-financial-corp","exchange":"NASDAQ","ticker":"SIEB","role_category":"officer","title":"CEO","committee":null,"is_board_chair":false,"is_independent":null,"valid_from":null,"valid_to":null,"is_current":true,"verification_status":"confirmed","confidence":1,"evidence":{"source_type":"sec_form_ownership","source_url":"https://www.sec.gov/Archives/edgar/data/65596/000121390026027152/ownership.xml","effective_date":"2026-03-09","last_checked_at":"2026-08-06T10:33:03.035+00:00"}},{"company_name":"SIEBERT FINANCIAL CORP","company_slug":"siebert-financial-corp","exchange":"NASDAQ","ticker":"SIEB","role_category":"director","title":"Director","committee":null,"is_board_chair":false,"is_independent":null,"valid_from":null,"valid_to":null,"is_current":true,"verification_status":"confirmed","confidence":1,"evidence":{"source_type":"sec_form_ownership","source_url":"https://www.sec.gov/Archives/edgar/data/65596/000121390026027152/ownership.xml","effective_date":"2026-03-09","last_checked_at":"2026-08-06T10:33:03.035+00:00"}}],"claims":[{"claim_type":"ai_ml_experience","claim_value":false,"claim_text":"Proxy extraction classified AI/ML experience for John J. Gebbia as false.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.72,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T02:32:52.276074+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"SIEB DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/65596/000114036125037792/ny20054207x1_def14a.htm","published_at":"2025-10-09T00:00:00+00:00","last_checked_at":"2026-05-16T02:32:52.166315+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"ai_ml_experience","claim_value":false,"claim_text":"Executive extraction classified AI/ML experience for John J. Gebbia as false.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.72,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T08:16:27.340367+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"SIEB 10-K executive officers","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/65596/000121390026036500/ea0281594-10k_siebert.htm","published_at":"2026-03-30T00:00:00+00:00","last_checked_at":"2026-05-16T08:16:27.190773+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"board_role","claim_value":"Chair","claim_text":"John J. Gebbia currently serves as Chair at SIEBERT FINANCIAL CORP.","claim_state":"verified","valid_from":"2025-10-09","valid_to":null,"confidence":0.92,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T02:32:52.242613+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"SIEB DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/65596/000114036125037792/ny20054207x1_def14a.htm","published_at":"2025-10-09T00:00:00+00:00","last_checked_at":"2026-05-16T02:32:52.166315+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"committee_assignments","claim_value":[],"claim_text":"John J. Gebbia serves on no disclosed committees.","claim_state":"verified","valid_from":"2025-10-09","valid_to":null,"confidence":0.88,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T02:32:52.259754+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"SIEB DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/65596/000114036125037792/ny20054207x1_def14a.htm","published_at":"2025-10-09T00:00:00+00:00","last_checked_at":"2026-05-16T02:32:52.166315+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"current_executive_company","claim_value":"Siebert Financial Corp.","claim_text":"John J. Gebbia is linked to Siebert Financial Corp. 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":"2026-05-16T02:32:52.374837+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"SIEB DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/65596/000114036125037792/ny20054207x1_def14a.htm","published_at":"2025-10-09T00:00:00+00:00","last_checked_at":"2026-05-16T02:32:52.166315+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"current_executive_role","claim_value":"Chief Executive Officer and Chairman","claim_text":"John J. Gebbia is also listed as Chief Executive Officer and Chairman.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.85,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T02:32:52.358641+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"SIEB DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/65596/000114036125037792/ny20054207x1_def14a.htm","published_at":"2025-10-09T00:00:00+00:00","last_checked_at":"2026-05-16T02:32:52.166315+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"cybersecurity_experience","claim_value":false,"claim_text":"Proxy extraction classified cybersecurity experience for John J. Gebbia as false.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.72,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T02:32:52.309831+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"SIEB DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/65596/000114036125037792/ny20054207x1_def14a.htm","published_at":"2025-10-09T00:00:00+00:00","last_checked_at":"2026-05-16T02:32:52.166315+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"cybersecurity_experience","claim_value":false,"claim_text":"Executive extraction classified cybersecurity experience for John J. Gebbia as false.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.72,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T08:16:27.373009+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"SIEB 10-K executive officers","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/65596/000121390026036500/ea0281594-10k_siebert.htm","published_at":"2026-03-30T00:00:00+00:00","last_checked_at":"2026-05-16T08:16:27.190773+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"executive_company","claim_value":"SIEBERT FINANCIAL CORP","claim_text":"John J. Gebbia is associated with SIEBERT FINANCIAL CORP.","claim_state":"verified","valid_from":"2026-03-30","valid_to":null,"confidence":0.94,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T08:16:27.322768+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"SIEB 10-K executive officers","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/65596/000121390026036500/ea0281594-10k_siebert.htm","published_at":"2026-03-30T00:00:00+00:00","last_checked_at":"2026-05-16T08:16:27.190773+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"executive_title","claim_value":"Chief Executive Officer, Chairman and Director","claim_text":"John J. Gebbia is listed as Chief Executive Officer, Chairman and Director at SIEBERT FINANCIAL CORP.","claim_state":"verified","valid_from":"2026-03-30","valid_to":null,"confidence":0.94,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T08:16:27.301468+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"SIEB 10-K executive officers","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/65596/000121390026036500/ea0281594-10k_siebert.htm","published_at":"2026-03-30T00:00:00+00:00","last_checked_at":"2026-05-16T08:16:27.190773+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"technology_background","claim_value":false,"claim_text":"Proxy extraction classified technology background for John J. Gebbia as false.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.72,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T02:32:52.29262+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"SIEB DEF 14A director slate","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/65596/000114036125037792/ny20054207x1_def14a.htm","published_at":"2025-10-09T00:00:00+00:00","last_checked_at":"2026-05-16T02:32:52.166315+00:00","relation":"supports","excerpt_locator":null}]},{"claim_type":"technology_background","claim_value":false,"claim_text":"Executive extraction classified technology background for John J. Gebbia as false.","claim_state":"verified","valid_from":null,"valid_to":null,"confidence":0.72,"source_tier":3,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T08:16:27.356879+00:00","version":1,"evidence":[{"source_name":"SEC EDGAR","document_title":"SIEB 10-K executive officers","source_type":"sec_filing","source_tier":3,"source_url":"https://www.sec.gov/Archives/edgar/data/65596/000121390026036500/ea0281594-10k_siebert.htm","published_at":"2026-03-30T00:00:00+00:00","last_checked_at":"2026-05-16T08:16:27.190773+00:00","relation":"supports","excerpt_locator":null}]},{"subject":"alpha:person:john-j-gebbia","claim_type":"board_service","claim_value":{"tags":[],"title":"Director","period":"Current · start date not disclosed","organization":"SIEBERT FINANCIAL CORP","organization_id":"siebert-financial-corp"},"claim_text":"Director at SIEBERT FINANCIAL CORP (Current · start date not disclosed)","valid_from":null,"valid_to":null,"verification_status":"confirmed","date_precision":"undisclosed","evidence":[{"source_url":"https://www.sec.gov/Archives/edgar/data/65596/000121390026027152/ownership.xml","label":"sec_form_ownership","evidence_state":"verified"}],"claim_state":"confirmed","version":1},{"claim_type":"executive_title","claim_value":{"title":"CEO","company":"SIEBERT FINANCIAL CORP"},"claim_text":"CEO at SIEBERT FINANCIAL CORP","claim_state":"confirmed","valid_from":null,"valid_to":null,"confidence":1,"source_tier":null,"verification_status":"confirmed","last_reviewed_at":"2026-05-16T08:16:27.129+00:00","version":1,"evidence":[{"source_type":"sec_form_ownership","source_url":"https://www.sec.gov/Archives/edgar/data/65596/000121390026027152/ownership.xml","effective_date":"2026-03-09","last_checked_at":"2026-08-06T10:33:03.035+00:00"}]}],"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/john-j-gebbia#profile","url":"https://registry.alpha.ac/people/john-j-gebbia","dateModified":"2026-05-16T08:16:27.129+00:00","mainEntity":{"@type":"Person","@id":"https://registry.alpha.ac/people/john-j-gebbia#person","name":"John J. Gebbia","url":"https://registry.alpha.ac/people/john-j-gebbia","jobTitle":"Director","worksFor":{"@type":"Organization","name":"SIEBERT FINANCIAL CORP","tickerSymbol":"NASDAQ: SIEB"},"affiliation":[{"@type":"OrganizationRole","roleName":"CEO","memberOf":{"@type":"Organization","name":"SIEBERT FINANCIAL CORP","url":"https://registry.alpha.ac/companies/siebert-financial-corp","tickerSymbol":"NASDAQ: SIEB"}},{"@type":"OrganizationRole","roleName":"Director","memberOf":{"@type":"Organization","name":"SIEBERT FINANCIAL CORP","url":"https://registry.alpha.ac/companies/siebert-financial-corp","tickerSymbol":"NASDAQ: SIEB"}}]},"isBasedOn":[{"@type":"CreativeWork","url":"https://www.sec.gov/Archives/edgar/data/65596/000114036125037792/ny20054207x1_def14a.htm","name":"SIEB DEF 14A director slate"},{"@type":"CreativeWork","url":"https://www.sec.gov/Archives/edgar/data/65596/000121390026036500/ea0281594-10k_siebert.htm","name":"SIEB 10-K executive officers"},{"@type":"CreativeWork","url":"https://www.sec.gov/Archives/edgar/data/65596/000121390026027152/ownership.xml"}],"mainEntityOfPage":"https://registry.alpha.ac/people/john-j-gebbia"},"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":8,"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":12,"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":8,"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":12,"corroborated_claims":4,"sources":4,"distinct_sources":3,"role_claims":2,"last_reviewed_at":"2026-05-16T08:16:27.129+00:00","observed_at":"2026-09-15T17:38:20.721099+00:00","freshness_days":122}},"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":"john-j-gebbia","canonical_url":"https://registry.alpha.ac/people/john-j-gebbia"},"publication":{"published_at":"2026-09-02T02:37:22.763389+00:00","last_reviewed_at":"2026-05-16T08:16:27.129+00:00","as_of":"2026-09-15T17:38:20.721099+00:00"},"representations":{"html":{"href":"https://registry.alpha.ac/people/john-j-gebbia","media_type":"text/html"},"json":{"href":"https://registry.alpha.ac/api/public/profiles/john-j-gebbia","media_type":"application/json"},"markdown":{"href":"https://registry.alpha.ac/people/john-j-gebbia.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}}}