Stock Ownership/MCO

MOODYS CORP (MCO): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in MCO · Financials. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
49
13F filers
Aggregate Value
$20.8B
Across holders
Last Price
$511.35
2026-08-24
Sector
Financials
GICS
Quarterly fund activity25 increased18 reduced3 exited
Full exits: Himalaya Capital Management LLC, CAXTON ASSOCIATES LLP, Magnetar Financial LLC
Institutional Holders of MCO
↗
49 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
BERKSHIRE HATHAWAY INC (BRK-A, BRK-B)
CIK 0001067983
Institutional Manager24.67M$11.2B53.8%3.7%Unchanged$-6.0BQ2 2026
TCI Fund Management Ltd
CIK 0001647251
Hedge Fund14.33M$6.5B31.2%12.3%Unchanged+$0Q2 2026
Egerton Capital (UK) LLP
CIK 0001581811
Hedge Fund1.70M$771.9M3.7%7.5%Added+$71.8MQ2 2026
AKRE CAPITAL MANAGEMENT LLC
CIK 0001112520
Institutional Manager1.16M$524.0M2.5%10.2%Reduced$-40.4MQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund1.05M$471.0M2.3%0.2%Added+$471.0MQ2 2026
BAILLIE GIFFORD & CO
CIK 0001088875
Institutional Manager718K$325.1M1.6%0.3%Reduced+$178.7MQ2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund369K$167.2M0.8%0.1%Added$-19.0MQ2 2026
MARKEL CORP (MKL)
CIK 0001096343
Hedge Fund214K$96.9M0.5%0.7%Unchanged$-77.8MQ2 2026
Holocene Advisors, LP
CIK 0001700574
Hedge Fund208K$94.2M0.5%0.2%Added+$66.6MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund161K$73.0M0.4%0.0%Added+$69.7MQ2 2026
BERKSHIRE HATHAWAY INC (BRK-A, BRK-B)Unchanged
Institutional Manager
$11.2B· 53.8% of total· 3.7% port· 24.67M sh· $-6.0B QoQ· Q2 2026
TCI Fund Management LtdUnchanged
Hedge Fund
$6.5B· 31.2% of total· 12.3% port· 14.33M sh· +$0 QoQ· Q2 2026
Egerton Capital (UK) LLPAdded
Hedge Fund
$771.9M· 3.7% of total· 7.5% port· 1.70M sh· +$71.8M QoQ· Q2 2026
AKRE CAPITAL MANAGEMENT LLCReduced
Institutional Manager
$524.0M· 2.5% of total· 10.2% port· 1.16M sh· $-40.4M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$471.0M· 2.3% of total· 0.2% port· 1.05M sh· +$471.0M QoQ· Q2 2026
BAILLIE GIFFORD & COReduced
Institutional Manager
$325.1M· 1.6% of total· 0.3% port· 718K sh· +$178.7M QoQ· Q2 2026
SHAW D E & CO INCAdded
Hedge Fund
$167.2M· 0.8% of total· 0.1% port· 369K sh· $-19.0M QoQ· Q2 2026
MARKEL CORP (MKL)Unchanged
Hedge Fund
$96.9M· 0.5% of total· 0.7% port· 214K sh· $-77.8M QoQ· Q2 2026
Holocene Advisors, LPAdded
Hedge Fund
$94.2M· 0.5% of total· 0.2% port· 208K sh· +$66.6M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$73.0M· 0.4% of total· 0.0% port· 161K sh· +$69.7M QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPReduced
Hedge Fund
$68.4M· 0.3% of total· 0.0% port· 151K sh· $-39.5M QoQ· Q2 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.Reduced
Hedge Fund
$60.6M· 0.3% of total· 0.1% port· 134K sh· $-1.6M QoQ· Q2 2026
Squarepoint Ops LLCAdded
Hedge Fund
$46.8M· 0.2% of total· 0.1% port· 103K sh· +$45.4M QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCReduced
Hedge Fund
$44.7M· 0.2% of total· 0.1% port· 99K sh· $-6.0M QoQ· Q2 2026
BALYASNY ASSET MANAGEMENT LLCAdded
Hedge Fund
$38.4M· 0.2% of total· 0.0% port· 85K sh· +$37.3M QoQ· Q2 2026
PineBridge Investments, L.P.Reduced
Hedge Fund
$35.6M· 0.2% of total· 0.3% port· 75K sh· $-2.1M QoQ· Q3 2025
CITADEL ADVISORS LLCReduced
Hedge Fund
$29.3M· 0.1% of total· 0.0% port· 65K sh· $-11.2M QoQ· Q2 2026
MAKENA CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$27.0M· 0.1% of total· 2.8% port· 60K sh· +$4.8M QoQ· Q2 2026
Select Equity Group, L.P.Added
Hedge Fund
$23.6M· 0.1% of total· 0.1% port· 52K sh· +$1.1M QoQ· Q2 2026
Gotham Asset Management, LLCAdded
Hedge Fund
$23.5M· 0.1% of total· 0.1% port· 52K sh· +$4.6M QoQ· Q2 2026
VOLORIDGE INVESTMENT MANAGEMENT, LLCReduced
Hedge Fund
$18.8M· 0.1% of total· 0.1% port· 42K sh· $-115.8M QoQ· Q2 2026
Woodline Partners LPAdded
Hedge Fund
$14.9M· 0.1% of total· 0.0% port· 33K sh· +$1.1M QoQ· Q2 2026
Schonfeld Strategic Advisors LLCAdded
Hedge Fund
$14.3M· 0.1% of total· 0.1% port· 32K sh· +$4.7M QoQ· Q2 2026
Bridgewater Associates, LPAdded
Hedge Fund
$13.7M· 0.1% of total· 0.1% port· 30K sh· — QoQ· Q2 2026
Verition Fund Management LLCAdded
Hedge Fund
$13.4M· 0.1% of total· 0.1% port· 30K sh· +$9.1M QoQ· Q2 2026
Grantham, Mayo, Van Otterloo & Co. LLCAdded
Institutional Manager
$13.1M· 0.1% of total· 0.0% port· 29K sh· — QoQ· Q2 2026
Man Group plcReduced
Hedge Fund
$12.5M· 0.1% of total· 0.0% port· 28K sh· +$5.2M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPReduced
Hedge Fund
$11.5M· 0.1% of total· 0.0% port· 25K sh· $-20.4M QoQ· Q2 2026
Hudson Bay Capital Management LPAdded
Hedge Fund
$9.7M· 0.0% of total· 0.0% port· 21K sh· — QoQ· Q2 2026
Point72 Asset Management, L.P.Reduced
Hedge Fund
$8.6M· 0.0% of total· 0.0% port· 19K sh· $-2.2M QoQ· Q2 2026
Rockefeller Capital Management L.P.Reduced
Hedge Fund
$7.0M· 0.0% of total· 0.0% port· 15K sh· $-23.3M QoQ· Q2 2026
MOORE CAPITAL MANAGEMENT, LPAdded
Hedge Fund
$6.2M· 0.0% of total· 0.1% port· 14K sh· — QoQ· Q2 2026
YACKTMAN ASSET MANAGEMENT CO/ILUnchanged
Institutional Manager
$5.6M· 0.0% of total· 0.1% port· 12K sh· +$0 QoQ· Q2 2026
GAMCO INVESTORS, INC. ET ALReduced
Institutional Manager
$5.5M· 0.0% of total· 0.0% port· 12K sh· $-1.9M QoQ· Q2 2026
Qube Research & Technologies LtdReduced
Hedge Fund
$5.2M· 0.0% of total· 0.0% port· 11K sh· $-35.5M QoQ· Q2 2026
Brevan Howard Capital Management LPAdded
Hedge Fund
$4.9M· 0.0% of total· 0.0% port· 11K sh· +$2.8M QoQ· Q2 2026
Alphadyne Asset Management LPAdded
Hedge Fund
$4.6M· 0.0% of total· 0.0% port· 10K sh· +$2.8M QoQ· Q2 2026
MARSHALL WACE, LLPReduced
Hedge Fund
$3.9M· 0.0% of total· 0.0% port· 9K sh· $-32.8M QoQ· Q2 2026
Parallax Volatility Advisers, L.P.Added
Hedge Fund
$3.4M· 0.0% of total· 0.0% port· 8K sh· $-4.5M QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALAdded
Hedge Fund
$2.9M· 0.0% of total· 0.0% port· 6K sh· +$613K QoQ· Q2 2026
ExodusPoint Capital Management, LPAdded
Hedge Fund
$1.9M· 0.0% of total· 0.0% port· 4K sh· — QoQ· Q2 2026
Walleye Capital LLCAdded
Hedge Fund
$1.8M· 0.0% of total· 0.0% port· 4K sh· +$939K QoQ· Q2 2026
Fisher Asset Management, LLCAdded
Institutional Manager
$1.3M· 0.0% of total· 0.0% port· 3K sh· +$469K QoQ· Q2 2026
TCW GROUP INCReduced
Hedge Fund
$1.2M· 0.0% of total· 0.0% port· 3K sh· $-10K QoQ· Q2 2026
HARRIS ASSOCIATES L PUnchanged
Institutional Manager
$863K· 0.0% of total· 0.0% port· 2K sh· +$0 QoQ· Q2 2026
DODGE & COXUnchanged
Institutional Manager
$549K· 0.0% of total· 0.0% port· 1K sh· +$0 QoQ· Q2 2026
CAPSTONE INVESTMENT ADVISORS, LLCAdded
Hedge Fund
$523K· 0.0% of total· 0.0% port· 1K sh· $-4.1M QoQ· Q2 2026
Bridgewater Advisors Inc.Reduced
Hedge Fund
$505K· 0.0% of total· 0.0% port· 1K sh· $-9K QoQ· Q2 2026
Ancora Advisors, LLCReduced
Hedge Fund
$47K· 0.0% of total· 0.0% port· 103 sh· $-30K QoQ· Q2 2026
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