| # | Fund | Value | Shares | Change | Filing |
|---|---|---|---|---|---|
| 1 | TCI Fund Management Ltd | $6.3B | 14.33M | ADDED | Q1 2026 |
| 2 | BERKSHIRE HATHAWAY INC | $5.9B | 12.62M | NEW | Q1 2025 |
| 3 | STATE STREET CORP | $3.1B | 7.14M | NEW | Q1 2026 |
| 4 | Himalaya Capital Management LLC | $51.4M | 117.8K | NEW | Q1 2026 |
| 5 | CITADEL ADVISORS LLC | $39.1M | 89.6K | ADDED | Q1 2026 |
| 6 | Gotham Asset Management, LLC | $18.2M | 41.6K | ADDED | Q1 2026 |
| 7 | Point72 Asset Management, L.P. | $10.4M | 23.8K | REDUCED | Q1 2026 |
| 8 | MARKEL GROUP INC. | $9.2M | 21.1K | REDUCED | Q1 2026 |
| 9 | Bridgewater Associates, LP | $4.1M | 8.8K | REDUCED | Q1 2025 |
| 10 | MANGROVE PARTNERS IM, LLC | $1.1M | 2.1K | NEW | Q4 2025 |
| 11 | MAVERICK CAPITAL LTD | $685K | 1.4K | HELD | Q2 2025 |
No Form 4 insider transactions on file yet.
No filings captured for this ticker in the live stream yet.
| Company | Co-held by | Combined value |
|---|---|---|
| ALPHABET INCGOOGL | 7 funds | $67.8B |
| ALPHABET INCGOOG | 7 funds | $58.1B |
| VISA INCV | 7 funds | $37.8B |
| APPLE INCAAPL | 6 funds | $221.9B |
| MICROSOFT CORPMSFT | 6 funds | $116.0B |
| AMAZON COM INCAMZN | 6 funds | $86.5B |
| BK OF AMERICA CORPBAC | 6 funds | $41.2B |
| MASTERCARD INCORPORATEDMA | 6 funds | $21.2B |
| OCCIDENTAL PETE CORPOXY | 6 funds | $16.3B |
| S&P GLOBAL INCSPGI | 6 funds | $12.3B |
| CAPITAL ONE FINL CORPCOF | 6 funds | $6.9B |
Ranked by how many of MCO'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 + the live filing stream, joined for MCO. Public domain, sourced to SEC EDGAR. Every panel above is one call to the Arkolith API & MCP server.