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Overview
Financials
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Business Summary
Filings
Ownership
Valuation
Ownership — MCO
Institutional Holdings
Insider Transactions
US Institutional Ownership
89.5%
Institution
Shares
Value
Ownership %
Change
Filing Date
Berkshire Hathaway Inc
24.67M
$10.76B
14.17%
--
2026-03-31
TCI FUND MANAGEMENT LTD
14.33M
$6.25B
8.23%
+1.03M
2026-03-31
BlackRock, Inc.
13.13M
$5.73B
7.54%
-902.0K
2026-03-31
VANGUARD CAPITAL MANAGEMENT LLC
9.89M
$4.31B
5.68%
--
2026-03-31
STATE STREET CORP
7.14M
$3.11B
4.10%
+4.8K
2026-03-31
FMR LLC
4.99M
$2.17B
2.86%
-489.5K
2026-03-31
GEODE CAPITAL MANAGEMENT, LLC
4.08M
$1.77B
2.34%
+116.1K
2026-03-31
VANGUARD PORTFOLIO MANAGEMENT LLC
3.88M
$1.69B
2.23%
--
2026-03-31
Fiera Capital Corp
2.36M
$1.03B
1.35%
-15.5K
2026-03-31
PineStone Asset Management Inc.
2.35M
$1.02B
1.35%
-26.0K
2026-03-31
Bank of New York Mellon Corp
2.35M
$1.02B
1.35%
+72.0K
2026-03-31
MORGAN STANLEY
2.32M
$1.01B
1.33%
-48.3K
2026-03-31
GOLDMAN SACHS GROUP INC
2.16M
$940.0M
1.24%
+671.4K
2026-03-31
PRICE T ROWE ASSOCIATES INC /MD/
1.83M
$798.0M
1.05%
+114.5K
2026-03-31
NORTHERN TRUST CORP
1.75M
$764.0M
1.01%
+67.7K
2026-03-31
Egerton Capital (UK) LLP
1.55M
$674.0M
0.89%
+772.3K
2026-03-31
UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC
1.39M
$605.0M
0.80%
-13.6K
2026-03-31
WINDACRE PARTNERSHIP LLC
1.33M
$581.0M
0.77%
+214.0K
2026-03-31
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
1.33M
$605.0M
0.76%
+17.4K
2026-03-31
Valley Forge Capital Management, LP
1.32M
$574.0M
0.76%
-104
2026-03-31
AKRE CAPITAL MANAGEMENT LLC
1.25M
$543.0M
0.72%
-489.1K
2026-03-31
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
1.15M
$500.0M
0.66%
+35.4K
2026-03-31
Rothschild & Co Wealth Management UK Ltd
1.11M
$483.0M
0.64%
-8.3K
2026-03-31
PRINCIPAL FINANCIAL GROUP INC
1.08M
$471.0M
0.62%
+454.7K
2026-03-31
Legal & General Group Plc
1.04M
$455.0M
0.60%
-157.3K
2026-03-31
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