Who owns MCO
Institutions that file 13Fs hold 92% of the shares
Shares they hold, quarter on quarter
-1.5%
154 new, 465 added, 484 cut, 130 sold out
Top 10 holders
54%
of the shares institutions hold
A 13F lists the long positions of managers with more than $100M in US stocks. It shows the last day of a quarter and is filed up to 45 days later. Two managers can report the same shares, so totals can count some shares twice.
Institutional owners
The 25 biggest holders
| Holder | Shares | Value | % of company | From Mar 31, 2026 |
|---|---|---|---|---|
| Berkshire Hathaway Inc | 24.67M | $11.2B | 14.31% | Held |
| TCI FUND MANAGEMENT LTD | 14.33M | $6.5B | 8.31% | Held |
| BlackRock, Inc. | 12.46M | $5.6B | 7.23% | Reduced -5.1% |
| VANGUARD CAPITAL MANAGEMENT LLC | 9.76M | $4.4B | 5.66% | Reduced -1.3% |
| STATE STREET CORP | 7.11M | $3.2B | 4.12% | Held |
| FMR LLC | 4.99M | $2.3B | 2.89% | Held |
| GEODE CAPITAL MANAGEMENT, LLC | 4.01M | $1.8B | 2.32% | Reduced -1.8% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3.73M | $1.7B | 2.17% | Reduced -3.8% |
| MORGAN STANLEY | 2.38M | $1.1B | 1.38% | Added +2.5% |
| NORGES BANK | 2.37M | $1.1B | 1.38% | New |
| PineStone Asset Management Inc. | 2.28M | $1.0B | 1.32% | Reduced -2.8% |
| GOLDMAN SACHS GROUP INC | 2.13M | $963.1M | 1.23% | Reduced -1.4% |
| Fiera Capital Corp | 2.09M | $944.5M | 1.21% | Reduced -11.5% |
| Bank of New York Mellon Corp | 2.02M | $914.7M | 1.17% | Reduced -14.0% |
| Egerton Capital (UK) LLP | 1.70M | $771.9M | 0.99% | Added +10.3% |
| NORTHERN TRUST CORP | 1.67M | $757.3M | 0.97% | Reduced -4.6% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1.55M | $700K | 0.90% | Reduced -15.6% |
| PRINCIPAL FINANCIAL GROUP INC | 1.46M | $661.9M | 0.85% | Added +35.1% |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 1.42M | $643.2M | 0.82% | Added +2.4% |
| WINDACRE PARTNERSHIP LLC | 1.41M | $638.6M | 0.82% | Added +5.8% |
| Valley Forge Capital Management, LP | 1.32M | $596.6M | 0.76% | Held |
| Invesco Ltd. | 1.20M | $544.3M | 0.70% | Added +16.8% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.20M | $544.0M | 0.70% | Added +4.8% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1.19M | $565.8M | 0.69% | Reduced -10.7% |
| AKRE CAPITAL MANAGEMENT LLC | 1.16M | $524.0M | 0.67% | Reduced -7.2% |
Show the other 15 holders
This quarter
Who bought and who sold the most shares
Bought the most shares
- NORGES BANK +2.37M, new
- AQR CAPITAL MANAGEMENT LLC +594K
- PRINCIPAL FINANCIAL GROUP INC +380K
- ROYAL LONDON ASSET MANAGEMENT LTD +235K
- Assenagon Asset Management S.A. +215K
- DIMENSIONAL FUND ADVISORS LP +188K
- Invesco Ltd. +173K
- GENERATION INVESTMENT MANAGEMENT LLP +172K
- Junto Capital Management LP +172K
- Amundi +169K
Sold the most shares
- BlackRock, Inc. -666K
- ALTAROCK PARTNERS LP -559K
- Cantillon Capital Management LLC -374K
- Bank of New York Mellon Corp -330K
- BNP PARIBAS FINANCIAL MARKETS -320K
- FIRST TRUST ADVISORS LP -290K
- PRICE T ROWE ASSOCIATES INC /MD/ -285K
- Fiera Capital Corp -271K
- UBS Group AG -259K
- APG Asset Management N.V. -256K
Superinvestors
Superinvestors holding MCO
| Investor | Quarter | Shares | Value | % of portfolio | Last quarter |
|---|---|---|---|---|---|
| Warren Buffett Berkshire Hathaway | Jun 30, 2026 | 24.67M | $11.2B | 3.86% | Held |
| Chris Hohn TCI Fund Management | Jun 30, 2026 | 14.33M | $6.5B | 13.18% | Held |
| Chuck Akre Akre Capital Management | Jun 30, 2026 | 1.16M | $524.0M | 10.26% | Reduced -7.2% |
| Mark Massey AltaRock Partners | Jun 30, 2026 | 303K | $137.1M | 3.23% | Reduced -64.9% |
| Tom Gayner Markel Group | Sep 30, 2026 | 214K | $97.1M | 0.82% | Held |
| William von Mueffling Cantillon Capital Management | Jun 30, 2026 | 18K | $8.2M | 1.23% | Reduced -95.4% |
| Yacktman Yacktman Asset Management | Sep 30, 2026 | 12K | $5.7M | 0.07% | Added +0.7% |
| Bill Nygren Harris Associates (Oakmark) | Jun 30, 2026 | 2K | $863K | 0.00% | Held |
| Francis Chou Chou Associates | Jun 30, 2026 | 2K | $679K | 0.36% | Held |
| Dodge & Cox Dodge & Cox | Jun 30, 2026 | 1K | $549K | 0.00% | Held |
Sold out last quarter: Li Lu
More than 5%
13D filings: owners who may push for change
No Schedule 13D about MCO in the last year.