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Horizon Kinetics Holding Corp — Insider Transactions

Form 4 filings by directors, officers, and 10%+ shareholders

SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.

Overview All Filings Financials Insiders
Insider Title Type Shares Price Value Date
Maran Partners Fund, LP Other 25,360 Dec 23, 2025
STAHL MURRAY CEO and CIO Purchase 4 $27.00 $108 Dec 10, 2025
STAHL MURRAY CEO and CIO Purchase 12 $27.00 $324 Dec 9, 2025
Horizon Common Inc Purchase 4 $26.73 $107 Dec 8, 2025
STAHL MURRAY CEO and CIO Purchase 12 $27.75 $333 Dec 5, 2025
Horizon Common Inc Purchase 4 $27.75 $111 Dec 4, 2025
Horizon Common Inc Purchase 6 $27.00 $162 Dec 3, 2025
STAHL MURRAY CEO and CIO Purchase 4 $27.23 $109 Dec 2, 2025
Horizon Common Inc Purchase 6 $27.00 $162 Dec 1, 2025
STAHL MURRAY CEO and CIO Purchase 4 $27.23 $109 Nov 28, 2025
Horizon Common Inc Purchase 4 $27.23 $109 Nov 26, 2025
STAHL MURRAY CEO and CIO Purchase 4 $27.00 $108 Nov 25, 2025
Rosenthal Brent D Purchase 300 $27.28 $8,184 Nov 25, 2025
STAHL MURRAY CEO and CIO Purchase 8 $28.00 $224 Nov 24, 2025
Horizon Common Inc Purchase 12 $28.25 $339 Nov 21, 2025
Horizon Common Inc Purchase 11 $27.50 $303 Nov 20, 2025
Herndon Mark Chief Financial Officer Purchase 100 $29.00 $2,900 Nov 20, 2025
Horizon Common Inc Purchase 5 $38.30 $192 Sep 9, 2025
Horizon Common Inc Purchase 5 $38.85 $194 Sep 8, 2025
STAHL MURRAY CEO and CIO Purchase 4 $39.00 $156 Sep 5, 2025
STAHL MURRAY CEO and CIO Purchase 4 $39.45 $158 Sep 4, 2025
STAHL MURRAY CEO and CIO Purchase 5 $40.20 $201 Sep 3, 2025
STAHL MURRAY CEO and CIO Purchase 6 $38.00 $228 Sep 2, 2025
Rosenthal Brent D Purchase 300 $38.00 $11,400 Sep 2, 2025
STAHL MURRAY CEO and CIO Purchase 5 $38.00 $190 Aug 29, 2025
Horizon Common Inc Purchase 8 $38.00 $304 Aug 28, 2025
STAHL MURRAY CEO and CIO Purchase 5 $38.00 $190 Aug 28, 2025
Horizon Common Inc Purchase 8 $38.00 $304 Aug 27, 2025
STAHL MURRAY CEO and CIO Purchase 6 $38.00 $228 Aug 27, 2025
Brennan Alice C Purchase 100 $38.00 $3,800 Aug 27, 2025
Horizon Common Inc Purchase 2 $38.00 $76 Aug 26, 2025
STAHL MURRAY CEO and CIO Purchase 6 $38.00 $228 Aug 26, 2025
STAHL MURRAY CEO and CIO Purchase 2 $38.00 $76 Aug 25, 2025
STAHL MURRAY CEO and CIO Purchase 5 $37.63 $188 Aug 22, 2025
STAHL MURRAY CEO and CIO Purchase 8 $38.00 $304 Aug 21, 2025
STAHL MURRAY CEO and CIO Purchase 8 $38.15 $305 Aug 20, 2025
STAHL MURRAY CEO and CIO Purchase 2 $49.00 $98 Jun 10, 2025
Horizon Common Inc Purchase 8 $47.00 $376 Jun 9, 2025
Horizon Common Inc Purchase 8 $47.00 $376 Jun 6, 2025
Horizon Common Inc Purchase 8 $41.00 $328 Jun 5, 2025
Horizon Common Inc Purchase 2 $41.00 $82 Jun 4, 2025
Herndon Mark Chief Financial Officer Purchase 20 $40.18 $804 Jun 4, 2025
Horizon Common Inc Purchase 2 $41.00 $82 Jun 3, 2025
Horizon Common Inc Purchase 2 $43.50 $87 Jun 2, 2025
Horizon Common Inc Purchase 2 $41.75 $84 May 30, 2025
Horizon Common Inc Purchase 8 $41.50 $332 May 29, 2025
STAHL MURRAY CEO and CIO Purchase 2 $41.25 $83 May 28, 2025
STAHL MURRAY CEO and CIO Purchase 2 $42.00 $84 May 27, 2025
STAHL MURRAY CEO and CIO Purchase 8 $41.79 $334 May 23, 2025
Horizon Common Inc Purchase 2 $38.50 $77 May 22, 2025