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 PSXP 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/PSXP"
Use Arkolith to show who owns PSXP, 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 |
|---|---|---|---|---|---|
| Mar 9, 2022 | Haney Mark | Director | Disposed to issuer (D) | 34K | — |
| Mar 9, 2022 | Haney Mark | Director | Disposed to issuer (D) | 7K | — |
| Mar 9, 2022 | Herman Robert A | Vice President, Director | Disposed to issuer (D) | 25K | — |
| Mar 9, 2022 | Garland Greg C. | Chairman and CEO, Director | Disposed to issuer (D) | 35K | — |
| Mar 9, 2022 | Johnson Charles Douglas | Director | Disposed to issuer (D) | 8K | — |
| Mar 9, 2022 | Johnson Charles Douglas | Director | Disposed to issuer (D) | 7K | — |
| Mar 9, 2022 | Mitchell Kevin J | VP, Chief Financial Officer, Director | Disposed to issuer (D) | 10K | — |
| Mar 9, 2022 | Bairrington Phillip David | Director | Disposed to issuer (D) | 45K | — |
| Mar 9, 2022 | Bairrington Phillip David | Director | Disposed to issuer (D) | 7K | — |
| Mar 9, 2022 | O'Toole Joseph | Director | Disposed to issuer (D) | 10K | — |
| Mar 9, 2022 | O'Toole Joseph | Director | Disposed to issuer (D) | 25K | — |
| Mar 9, 2022 | O'Toole Joseph | Director | Disposed to issuer (D) | 7K | — |
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for PSXP. 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.