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 HEP 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/HEP"
Use Arkolith to show who owns HEP, 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 |
|---|---|---|---|---|---|
| Dec 1, 2023 | Holding Carol Orme | Director, 10% Owner | Disposed to issuer (D) | 21.0M | — |
| Dec 1, 2023 | Baldwin Larry R | Director | Disposed to issuer (D) | 42K | — |
| Dec 1, 2023 | Jamieson Robert I | SVP and COO | Tax withholding (F) | 6K | $127K |
| Dec 1, 2023 | Jamieson Robert I | SVP and COO | Grant (A) | 16K | $0 |
| Dec 1, 2023 | Jamieson Robert I | SVP and COO | Disposed to issuer (D) | 73K | — |
| Dec 1, 2023 | Jamieson Robert I | SVP and COO | Tax withholding (F) | 3K | $59K |
| Dec 1, 2023 | LaFollette Christine B | Director | Disposed to issuer (D) | 36K | — |
| Dec 1, 2023 | LEE JAMES H | Director | Disposed to issuer (D) | 32K | — |
| Dec 1, 2023 | LEE JAMES H | Director | Disposed to issuer (D) | 285 | — |
| Dec 1, 2023 | MATTSON ERIC L | Director | Disposed to issuer (D) | 34K | — |
| Dec 1, 2023 | Petersen Mark A | Director | Disposed to issuer (D) | 16K | — |
| Dec 1, 2023 | Norwood Kenneth | VP and Controller | Grant (A) | 17K | $0 |
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for HEP. 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.