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 GUER 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/GUER"
Use Arkolith to show who owns GUER, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Diversified Trust Co | $61K | 33K | —Held | Q1 2026 |
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 18, 2026 | HAMMER TODD B | Director, 10% Owner | Option exercise (M) | 16K | $48K |
| Jun 18, 2026 | HAMMER TODD B | Director, 10% Owner | Option exercise (M) | 16K | $0 |
| Jun 18, 2026 | ELLIS THOMAS B | Director, 10% Owner | Option exercise (M) | 16K | $48K |
| Jun 18, 2026 | ELLIS THOMAS B | Director, 10% Owner | Option exercise (M) | 16K | $0 |
| Jun 11, 2026 | Dunn James E. Jr. | Director | Option exercise (M) | 2K | $3K |
| Jun 11, 2026 | Dunn James E. Jr. | Director | Option exercise (M) | 2K | $5K |
| Jun 11, 2026 | Dunn James E. Jr. | Director | Option exercise (M) | 1K | $3K |
| Jun 11, 2026 | Dunn James E. Jr. | Director | Option exercise (M) | 2K | $0 |
| Jun 11, 2026 | Dunn James E. Jr. | Director | Option exercise (M) | 2K | $0 |
| Jun 11, 2026 | Dunn James E. Jr. | Director | Option exercise (M) | 1K | $0 |
| May 15, 2026 | HAMMER TODD B | Director, 10% Owner | Grant (A) | 16K | $0 |
| May 15, 2026 | SUMMERELL VIRGINIA R | Director | Grant (A) | 16K | $0 |
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for GUER. 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.