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 MGLD 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/MGLD"
Use Arkolith to show who owns MGLD, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC | $273K | 239K | ▲New +239K sh | Q1 2026 | |
| 2 | GEODE CAPITAL MANAGEMENT, LLC | $190K | 167K | ▲+53% Added · +58K sh | Q1 2026 | |
| 3 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $91K | 80K | —Held | Q1 2026 | |
| 4 | VANGUARD FIDUCIARY TRUST CO | $81K | 71K | ▲New +71K sh | Q1 2026 | |
| 5 | VANGUARD GROUP INC | $74K | 84K | ▲+2.5% Added · +2K sh | Q4 2025 | |
| 6 | CITADEL ADVISORS LLC | $43K | 38K | ▲+20% Added · +6K sh | Q1 2026 | |
| 7 | JANE STREET GROUP, LLC | $30K | 26K | ▲New +26K sh | Q1 2026 | |
| 8 | Tower Research Capital LLC (TRC) | $4K | 3K | ▲+0.2% Added · +6 sh | Q1 2026 | |
| 9 | SBI Securities Co., Ltd. | $80 | 70 | ▼−59% Reduced · −100 sh | Q1 2026 | |
| 10 | MORGAN STANLEY | $2 | 1 | —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 |
|---|---|---|---|---|---|
| Dec 10, 2025 | Nicholas & Melinda Gerber Living Trust | Chief Executive Officer, Director, 10% Owner | Buy (P) | 25K | $23K |
| Dec 3, 2025 | Nicholas & Melinda Gerber Living Trust | Chief Executive Officer, Director, 10% Owner | Buy (P) | 15K | $16K |
| Nov 20, 2025 | Nicholas & Melinda Gerber Living Trust | Chief Executive Officer, Director, 10% Owner | Buy (P) | 20K | $21K |
| Nov 7, 2025 | Gonzalez Matt | Director | Grant (A) | 5K | $5K |
| Nov 7, 2025 | Mullins Derek Jason | Director | Grant (A) | 5K | $5K |
| Nov 7, 2025 | Grogan Erin | Director | Grant (A) | 5K | $5K |
| Nov 7, 2025 | Harris Joya | Director | Grant (A) | 5K | $5K |
| Nov 7, 2025 | Alexander James S | Director | Grant (A) | 5K | $5K |
| Jun 20, 2025 | Nicholas & Melinda Gerber Living Trust | Chief Executive Officer, Director, 10% Owner | Buy (P) | 50K | $50K |
| Feb 24, 2025 | Nicholas & Melinda Gerber Living Trust | Chief Executive Officer, Director, 10% Owner | Buy (P) | 50K | $53K |
| Feb 14, 2025 | Nicholas & Melinda Gerber Living Trust | Chief Executive Officer, Director, 10% Owner | Buy (P) | 48K | $52K |
| Feb 11, 2025 | Nicholas & Melinda Gerber Living Trust | Chief Executive Officer, Director, 10% Owner | Buy (P) | 32K | $34K |
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 3 funds | $3.7B |
| AMAZON.COM INCAMZN | 3 funds | $1.8B |
| APPLE INCAAPL | 3 funds | $1.5B |
| META PLATFORMS INC-CLASS AMETA | 3 funds | $1.1B |
| MICROSOFT CORPMSFT | 3 funds | $1.1B |
| BROADCOM INCAVGO | 3 funds | $1.1B |
| ALPHABET INC-CL AGOOGL | 3 funds | $934.3M |
| TESLA INCTSLA | 3 funds | $899.7M |
| ALPHABET INC-CL CGOOG | 3 funds | $760.8M |
| JPMORGAN CHASE & COJPM | 3 funds | $758.2M |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 3 funds | $596.3M |
| MASTERCARD INC - AMA | 3 funds | $590.9M |
Ranked by how many of MGLD's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for MGLD. 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.