Horizon Kinetics Holding Corp

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0000088000

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateInsiderTransactionSharesAvg priceValueShares afterHolding changeFiling
Sep 22, 20269:28 AM ETSep 18, 2026Nagelberg AllisonDirectorPPurchaseCommon Stock+190$26.27+$4.99K590+47.5%SEC
Sep 3, 20268:28 AM ETSep 2, 2026Brennan Alice CDirectorPPurchaseCommon Stock+200$25.92+$5.18K2K+11.1%SEC
Aug 31, 20269:30 AM ETAug 28, 2026Brennan Alice CDirectorPPurchaseCommon Stock+200$26.20+$5.24K1.8K+12.5%SEC
Aug 28, 20262:16 PM ETAug 27, 2026Brennan Alice CDirectorPPurchaseCommon Stock+200$26.00+$5.2K1.6K+14.3%SEC
Aug 27, 20261:30 PM ETAug 26, 2026Roller Daniel J and 3 othersDirectorPPurchaseCommon Stock+500$26.50+$13.25K10K+5.3%SEC
Aug 26, 202611:15 AM ETAug 25, 2026Brennan Alice CDirectorPPurchaseCommon Stock+200$26.75+$5.35K1.4K+16.7%SEC
Aug 25, 202611:50 AM ETAug 24, 2026Brennan Alice CDirectorPPurchaseCommon Stock+200$26.87+$5.37K1.2K+20.0%SEC
Aug 25, 202610:11 AM ETAug 24, 2026Rosenthal Brent DavidDirectorPPurchaseCommon Stock+2K$27.00+$54K4.45K+81.6%SEC
Aug 20, 20262:08 PM ETAug 19 – Aug 20, 2026Herndon MarkChief Financial OfficerPPurchaseCommon Stock+250$26.70+$6.68K550+83.3%SEC
May 21, 2026May 20, 2026Herndon MarkChief Financial OfficerPPurchaseCommon Stock+100$27.85+$2.79K300+50.0%SEC
May 21, 2026May 20, 2026Rosenthal Brent DavidDirectorPPurchaseCommon Stock+700$27.85+$19.5K2.45K+40.0%SEC
Mar 24, 20262:53 PM ETAmendedMar 20, 2026STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+10$34.60+$346249.2K0.0%SEC
Mar 24, 20262:53 PM ETAmendedMar 20, 2026STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+43$34.60+$1.49K135+46.7%SEC
Mar 23, 2026Mar 20, 2026Nagelberg AllisonDirectorPPurchaseCommon Stock+150$33.96+$5.09K400+60.0%SEC
Mar 20, 202612:38 PM ETMar 19, 2026STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+46$34.06+$1.57K249.19K0.0%SEC
Mar 20, 202612:38 PM ETMar 19, 2026STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+43$34.06+$1.46K117+58.1%SEC
Mar 19, 20262:13 PM ETMar 18, 2026STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+10$34.00+$340249.15K0.0%SEC
Mar 19, 20262:13 PM ETMar 18, 2026STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+17$34.00+$57899+20.7%SEC
Mar 19, 2026Mar 18, 2026Herndon MarkChief Financial OfficerPPurchaseCommon Stock+80$33.03+$2.64K200+66.7%SEC
Mar 19, 2026Mar 18, 2026Rosenthal Brent DavidDirectorPPurchaseCommon Stock+750$33.05+$24.79K1.75K+75.0%SEC
Dec 11, 20251:08 PM ETDec 10, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+12$27.00+$324249.14K0.0%SEC
Dec 11, 20251:08 PM ETDec 10, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+10$27.00+$27091+12.3%SEC
Dec 10, 202512:45 PM ETDec 9, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+12$27.00+$324249.13K0.0%SEC
Dec 10, 202512:45 PM ETDec 9, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+10$27.00+$27087+13.0%SEC
Dec 9, 202511:29 AM ETDec 8, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+12$26.73+$320.76249.11K0.0%SEC
Dec 9, 202511:29 AM ETDec 8, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+10$26.73+$267.383+13.7%SEC
Dec 8, 202511:58 AM ETDec 5, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+12$27.75+$333249.1K0.0%SEC
Dec 8, 202511:58 AM ETDec 5, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+10$27.75+$277.579+14.5%SEC
Dec 5, 202511:00 AM ETDec 4, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+12$27.75+$333249.09K0.0%SEC
Dec 5, 202511:00 AM ETDec 4, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+10$27.75+$277.575+15.4%SEC
Dec 4, 202510:27 AM ETDec 3, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+12$27.00+$324249.08K0.0%SEC
Dec 4, 202510:27 AM ETDec 3, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+10$27.00+$27071+16.4%SEC
Dec 3, 20251:35 PM ETDec 2, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+12$27.23+$326.76249.07K0.0%SEC
Dec 3, 20251:35 PM ETDec 2, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+10$27.23+$272.367+17.5%SEC
Dec 2, 202512:13 PM ETDec 1, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+12$27.00+$324249.05K0.0%SEC
Dec 2, 202512:13 PM ETDec 1, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+10$27.00+$27063+18.9%SEC
Dec 1, 202511:49 AM ETNov 28, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+12$27.23+$326.76249.04K0.0%SEC
Dec 1, 202511:49 AM ETNov 28, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+10$27.23+$272.359+20.4%SEC
Nov 28, 202512:32 PM ETNov 26, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+12$27.23+$326.76249.03K0.0%SEC
Nov 28, 202512:32 PM ETNov 26, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+12$27.23+$326.7655+27.9%SEC
Nov 26, 202512:04 PM ETNov 25, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+12$27.00+$324249.02K0.0%SEC
Nov 26, 202512:04 PM ETNov 25, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+12$27.00+$32451+30.8%SEC
Nov 26, 2025Nov 25, 2025Rosenthal Brent DavidDirectorPPurchaseCommon Stock+300$27.28+$8.18K1K+42.9%SEC
Nov 25, 202512:35 PM ETNov 24, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+12$28.00+$336249.01K0.0%SEC
Nov 25, 202512:35 PM ETNov 24, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+12$28.00+$33647+34.3%SEC
Nov 24, 20252:22 PM ETNov 21, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+12$28.25+$339248.99K0.0%SEC
Nov 24, 20252:22 PM ETNov 21, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+13$28.25+$367.2543+43.3%SEC
Nov 21, 20253:07 PM ETNov 20, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+11$27.50+$302.5248.98K0.0%SEC
Nov 21, 20253:07 PM ETNov 20, 2025STAHL MURRAY and 1 otherCEO and CIOPPurchaseCommon Stock+13$27.50+$357.539+50.0%SEC
Nov 21, 2025Nov 20, 2025Herndon MarkChief Financial OfficerPPurchaseCommon Stock+100$29.00+$2.9K120+500.0%SEC