Held by 16 tracked superinvestors.
See MCO insider (officer/director) trading →Warren Buffett
Berkshire Hathaway Inc · as of 2026-06-30
$11,173,435,852
24,669,778 shares
Chris Hohn
TCI Fund Management · as of 2026-06-30
$6,492,167,509
14,334,027 shares
John Armitage
Egerton Capital · as of 2026-06-30
$771,879,399
1,704,229 shares
Valley Forge Capital Management
Valley Forge Capital Management · as of 2026-06-30
$596,580,789
1,317,188 shares
Chuck Akre
Akre Capital Management · as of 2026-06-30
$523,979,978
1,156,893 shares
AKO Capital
AKO Capital · as of 2026-06-30
$193,814,000
427,920 shares
AltaRock Partners
AltaRock Partners · as of 2026-06-30
$137,064,462
302,624 shares
Thomas Gayner
Markel Group · as of 2026-06-30
$96,875,059
213,890 shares
Bryan Lawrence
Oakcliff Capital · as of 2026-06-30
$15,399,280
34,000 shares
Guy Spier
Aquamarine Capital · as of 2026-06-30
$12,229,000
27,000 shares
William Von Mueffling
Cantillon Capital Management · as of 2026-06-30
$8,186,529
18,075 shares
Yacktman Asset Management
Yacktman Asset Management · as of 2026-06-30
$5,618,473
12,405 shares
Bill Nygren
Oakmark Funds · as of 2026-06-30
$862,813
1,905 shares
Francis Chou
Chou Associates · as of 2026-06-30
$679,380
1,500 shares
Dodge & Cox Funds
Dodge & Cox Funds · as of 2026-06-30
$549,392
1,213 shares
Glenn Greenberg
Brave Warrior Advisors · as of 2026-06-30
$213,325
471 shares
William Von Mueffling
2026-06-30 · 1.2% of portfolio
Li Lu
2026-06-30 · 1.6% of portfolio
John Armitage
2026-06-30 · 7.5% of portfolio
Bryan Lawrence
2026-06-30 · 5.7% of portfolio
AltaRock Partners
2026-06-30 · 3.2% of portfolio
AKO Capital
2026-06-30 · 4.6% of portfolio
Li Lu
2026-03-31 · 1.6% of portfolio
John Armitage
2026-03-31 · 7.5% of portfolio
Chuck Akre
2026-03-31 · 8.9% of portfolio
AKO Capital
2026-03-31 · 4.7% of portfolio
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