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 GLT 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/GLT"
Use Arkolith to show who owns GLT, 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 |
|---|---|---|---|---|---|
| Sep 25, 2024 | Double Black Diamond Offshore Ltd | 10% Owner | Sell (S) | 321K | $558K |
| Sep 19, 2024 | Carlson Clint Duane | 10% Owner | Sell (S) | 50K | $91K |
| Aug 24, 2024 | Fahnemann Thomas | CEO, Director | Option exercise (M) | 120K | $228K |
| Aug 24, 2024 | Fahnemann Thomas | CEO, Director | Tax withholding (F) | 32K | $60K |
| Aug 24, 2024 | Fahnemann Thomas | CEO, Director | Option exercise (M) | 120K | — |
| Aug 1, 2024 | Illetschko Boris | SVP, Chief Operating Officer | Option exercise (M) | 13K | $21K |
| Aug 1, 2024 | Illetschko Boris | SVP, Chief Operating Officer | Tax withholding (F) | 801 | $1K |
| Aug 1, 2024 | Illetschko Boris | SVP, Chief Operating Officer | Option exercise (M) | 13K | $0 |
| Jun 28, 2024 | CARLSON CAPITAL L P | 10% Owner | Sell (S) | 2.3M | $3.2M |
| Jun 27, 2024 | CARLSON CAPITAL L P | 10% Owner | Sell (S) | 207K | $342K |
| May 12, 2024 | ELDER DAVID C | Vice Pres, Finance and CAO | Option exercise (M) | 4K | $7K |
| May 12, 2024 | ELDER DAVID C | Vice Pres, Finance and CAO | Tax withholding (F) | 1K | $2K |
No filings captured for this ticker in the live stream yet.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for GLT. 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.