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 MGI 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/MGI"
Use Arkolith to show who owns MGI, 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 |
|---|---|---|---|---|---|
| Jun 1, 2023 | Vaughan Peggy | Director | Disposed to issuer (D) | 286K | — |
| Jun 1, 2023 | Garza Antonio O | Director | Disposed to issuer (D) | 254K | — |
| Jun 1, 2023 | Greenwald Adrianna E. | Chief Readiness Officer | Disposed to issuer (D) | 326K | — |
| Jun 1, 2023 | Greenwald Adrianna E. | Chief Readiness Officer | Disposed to issuer (D) | 37K | — |
| Jun 1, 2023 | Greenwald Adrianna E. | Chief Readiness Officer | Disposed to issuer (D) | 1K | — |
| Jun 1, 2023 | Russell Chris H. | Chief Accounting Officer | Disposed to issuer (D) | 50K | — |
| Jun 1, 2023 | Russell Chris H. | Chief Accounting Officer | Disposed to issuer (D) | 6K | — |
| Jun 1, 2023 | Gupta Alka | Director | Disposed to issuer (D) | 44K | — |
| Jun 1, 2023 | SILCOCK JULIE | Director | Disposed to issuer (D) | 68K | — |
| Jun 1, 2023 | TURNER W BRUCE | Director | Disposed to issuer (D) | 560K | — |
| Jun 1, 2023 | Holmes W. Alexander | Chairman & CEO, Director | Disposed to issuer (D) | 1.8M | — |
| Jun 1, 2023 | Holmes W. Alexander | Chairman & CEO, Director | Disposed to issuer (D) | 150K | — |
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for MGI. 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.