secwatch.observer — SEC 8-K summary ====================================== Issuer: Horizon Kinetics Holding Corp (HKHC) CIK: 0000088000 Form: 8-K Filed at: 2025-04-29T23:59:59+00:00 Accession: 0000950170-25-060072 Event type: other_material Sentiment: negative Materiality: 0.60 Item codes: 4.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Horizon Kinetics replaces auditor Marcum with CBIZ CPAs; cites material weaknesses -------------------------------------------------------------------------------- - Terminated Marcum LLP effective Apr 28, 2025; engaged CBIZ CPAs P.C. as auditor for FY ending Dec 31, 2025. - Marcum's past audit reports for FY 2024 and 2023 were unqualified; no disagreements occurred. - Material weaknesses in internal controls persist: consolidation of VIEs, account reconciliations, segregation of duties, IT controls. - No reportable events other than material weaknesses; Marcum provided letter agreeing with company's statements. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/88000/000095017025060072/0000950170-25-060072-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/88000/000095017025060072/hkhc-20250428.htm HTML page: https://secwatch.observer/filing/0000950170-25-060072 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer