Arkolith/Insider Trading/HKHC/Form 4

Stahl Murray

CEO and CIO, Director, 10% OwnerHorizon Kinetics Holding Corp (HKHC) · full profile →Form 4 · filed Sep 4, 2025
Net Buying
Open-Market Buys
$925
Open-Market Sells
$0
Net Open-Market Flow
$925
Transactions
4
4 non-derivative · 0 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Sep 3, 2025Buy(P)4$40.20$16119
Sep 3, 2025Buy(P)6$40.20$2418.2M
Sep 3, 2025Buy(P)8$40.20$322249K
Sep 3, 2025Buy(P)5$40.20$201824K

Transaction Codes

P
Open-market purchase

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001437749-25-028331) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML