| # | Fund | Position value | Shares | Last move | As of |
|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC | $73.5M | 6.19M | New | Q1 2026 |
| 2 | STATE STREET CORP | $37.6M | 3.16M | Added | Q1 2026 |
| 3 | CITADEL ADVISORS LLC | $6.6M | 555.0K | Reduced | Q1 2026 |
| 4 | Bridgewater Associates, LP | $2.4M | 145.2K | Reduced | Q4 2025 |
| 5 | Point72 Asset Management, L.P. | $381K | 23.5K | Reduced | Q4 2025 |
| 6 | Gotham Asset Management, LLC | $153K | 12.9K | New | Q1 2026 |
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 1, 2026 | Buonasera David | CHIEF TECHNOLOGY OFFICER | Sell (S) | 1.4K | $21K |
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPORATIONNVDA | 4 funds | $177.3B |
| APPLE INCAAPL | 4 funds | $155.0B |
| MICROSOFT CORPMSFT | 4 funds | $114.6B |
| AMAZON COM INCAMZN | 4 funds | $83.2B |
| ALPHABET INCGOOGL | 4 funds | $66.0B |
| BROADCOM INCAVGO | 4 funds | $60.3B |
| ALPHABET INCGOOG | 4 funds | $54.0B |
| META PLATFORMS INCMETA | 4 funds | $51.8B |
| TESLA INCTSLA | 4 funds | $43.5B |
| JPMORGAN CHASE & COJPM | 4 funds | $37.3B |
| EXXON MOBIL CORPXOM | 4 funds | $36.6B |
| BERKSHIRE HATHAWAY INC DELBRK/B | 4 funds | $36.1B |
Ranked by how many of MGNI'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 MGNI. 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.