secwatch.observer — SEC 8-K summary
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Issuer:     Horizon Kinetics Holding Corp (HKHC)
CIK:        0000088000
Form:       8-K
Filed at:   2026-04-08T23:59:59+00:00
Accession:  0001193125-26-147613
Event type: leadership
Sentiment:  negative
Materiality: 0.75
Item codes: 5.02, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

CEO Murray Stahl dies; Bregman and Doyle named Co-CEOs
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- Murray Stahl, Chairman and CEO, passed away suddenly on April 7, 2026.
- Steven Bregman and Peter Doyle appointed as Co-Chief Executive Officers.
- New Founders' Committee formed with co-founder Tom Ewing to oversee transition.
- Company has ~$600M market cap and debt-free balance sheet per press release.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/88000/000119312526147613/0001193125-26-147613-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/88000/000119312526147613/hkhc-20260407.htm
  HTML page:      https://secwatch.observer/filing/0001193125-26-147613

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer