{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-25-022417","form_type":"8-K","ticker":"HKHC","cik":"0000088000","company_name":"Horizon Kinetics Holding Corp","filed_at":"2025-02-18T23:59:59+00:00","discovered_at":"2026-05-14T18:03:06.633847+00:00","generated_at":"2026-05-26T18:26:54.324658+00:00","sec_items":["8.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.1,"calibrated_materiality_score":0.1,"confidence":"high","headline":"Horizon Kinetics sets 2025 annual meeting for June 17; proposal deadlines announced","bullets":["Annual meeting of stockholders to be held on Tuesday, June 17, 2025.","Advance notice deadline for stockholder proposals or nominations is March 19, 2025.","Deadline for Rule 14a-8 stockholder proposals is April 14, 2025."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-25-022417","json":"https://secwatch.observer/filing/0000950170-25-022417.json","markdown":"https://secwatch.observer/filing/0000950170-25-022417.md","text":"https://secwatch.observer/filing/0000950170-25-022417.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/88000/000095017025022417/0000950170-25-022417-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/88000/000095017025022417/slgdd-20250218.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-26T18:26:54.324658+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}