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 HFUS 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/HFUS"
Use Arkolith to show who owns HFUS, which funds added or reduced it, and which SEC filings prove each claim.
Not held in any tracked 13F filing yet.
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 |
|---|---|---|---|---|---|
| Nov 26, 2024 | Chang Sheng-Yih | CEO, Director, 10% Owner | Buy (P) | 43.8M | $876K |
| Nov 26, 2024 | Song Lianyue | 10% Owner | Sell (S) | 35.5M | $710K |
| Oct 31, 2024 | Chang Sheng-Yih | CEO, Director | Buy (P) | 400K | $8K |
| Oct 31, 2024 | Dong Xin | Director | Sell (S) | 4.8M | $96K |
| Oct 31, 2024 | Lu Yuan | Director | Sell (S) | 4.8M | $96K |
| Oct 31, 2024 | Song Lianyue | 10% Owner | Sell (S) | 32.7M | $654K |
| Mar 19, 2024 | Wang Rose Hong | Insider | Buy (P) | 2.9M | $59K |
| Mar 19, 2024 | Song Lianyue | 10% Owner | Buy (P) | 9.7M | $193K |
| Mar 13, 2024 | Chang Sheng-Yih | CEO*, Director | Buy (P) | 600K | $12K |
| Mar 13, 2024 | Dong Xin | Director | Buy (P) | 4.9M | $98K |
| Mar 13, 2024 | Lu Yuan | Director | Buy (P) | 4.9M | $98K |
| Mar 12, 2024 | Song Lianyue | 10% Owner | Sell (S) | 26.7M | $533K |
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for HFUS. 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.