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 HGEN 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/HGEN"
Use Arkolith to show who owns HGEN, 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 |
|---|---|---|---|---|---|
| Oct 18, 2023 | Black Horse Capital Master Fund Ltd. | 10% Owner | Sell (S) | 76K | $759 |
| Oct 18, 2023 | Black Horse Capital Master Fund Ltd. | 10% Owner | Sell (S) | 276K | $3K |
| Oct 18, 2023 | Black Horse Capital Master Fund Ltd. | 10% Owner | Sell (S) | 34K | $343 |
| Jul 27, 2022 | Durrant Cameron | Chief Executive Officer, Director | Grant (A) | 809K | $0 |
| Jul 27, 2022 | Xie Yili Kevin | Director | Grant (A) | 83K | $0 |
| Jul 27, 2022 | MORRIS TIMOTHY E | COO and CFO | Grant (A) | 600K | $0 |
| Jul 27, 2022 | Jordan Edward P. | Chief Commercial Officer | Grant (A) | 455K | $0 |
| Jul 27, 2022 | Boehm Rainer J. | Director | Grant (A) | 73K | $0 |
| Jul 27, 2022 | Chappell Dale | Chief Scientific Officer, Director, 10% Owner | Grant (A) | 518K | $0 |
| Jul 27, 2022 | BARLIANT RONALD | Director | Grant (A) | 56K | $0 |
| Jul 27, 2022 | Buxton Cheryl | Director | Grant (A) | 78K | $0 |
| Jul 27, 2022 | Kilcoyne Adrian | Chief Medical Officer | Grant (A) | 537K | $0 |
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for HGEN. 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.