The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
This stock page is the Follow view. The Build view lets your agent query HKHC owners, fund changes, insider filings, and source links through REST or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/HKHC"
Use Arkolith to show who owns HKHC, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | HORIZON KINETICS ASSET MANAGEMENT LLC | $35.5M | 1.1M | ▲~0% Added · +103 sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Mar 20, 2026 | Horizon Common Inc | 10% Owner | Buy (P) | 18 | $623 |
| Mar 20, 2026 | Horizon Common Inc | 10% Owner | Buy (P) | 25 | $865 |
| Mar 20, 2026 | STAHL MURRAY | CEO and CIO, Director, 10% Owner | Buy (P) | 18 | $623 |
| Mar 20, 2026 | STAHL MURRAY | CEO and CIO, Director, 10% Owner | Buy (P) | 25 | $865 |
| Mar 20, 2026 | STAHL MURRAY | CEO and CIO, Director, 10% Owner | Buy (P) | 10 | $346 |
| Mar 20, 2026 | Nagelberg Allison | Director | Buy (P) | 150 | $5K |
| Mar 20, 2026 | Horizon Common Inc | 10% Owner | Buy (P) | 10 | $346 |
| Mar 19, 2026 | Horizon Common Inc | 10% Owner | Buy (P) | 46 | $2K |
| Mar 19, 2026 | Horizon Common Inc | 10% Owner | Buy (P) | 18 | $613 |
| Mar 19, 2026 | Horizon Common Inc | 10% Owner | Buy (P) | 25 | $852 |
| Mar 18, 2026 | Horizon Common Inc | 10% Owner | Buy (P) | 8 | $272 |
| Mar 18, 2026 | Horizon Common Inc | 10% Owner | Buy (P) | 9 | $306 |
| Company | Co-held by | Combined value |
|---|---|---|
| TEXAS PACIFIC LAND CORPTPL | 1 funds | $4.8B |
| GRAYSCALE BITCOIN TRUST ETFGBTC | 1 funds | $738.9M |
| LANDBRIDGE CO LLC-ALB | 1 funds | $390.6M |
| HAWAIIAN ELECTRIC INDSHE | 1 funds | $321.1M |
| WHEATON PRECIOUS METALS CORPWPM | 1 funds | $230.8M |
| WATERBRIDGE INFRASTRUC-CL AWBI | 1 funds | $196.7M |
| FRANCO-NEVADA CORPFNV | 1 funds | $187.1M |
| PERMIAN BASIN ROYALTY TRUSTPBT | 1 funds | $137.3M |
| MIAMI INTERNATIONAL HOLDINGSMIAX | 1 funds | $134.3M |
| INTERCONTINENTAL EXCHANGE INICE | 1 funds | $131.9M |
| CHENIERE ENERGY INCLNG | 1 funds | $119.3M |
| CBOE GLOBAL MARKETS INCCBOE | 1 funds | $115.3M |
Ranked by how many of HKHC's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for HKHC. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.