McKesson Corporation (MCK)

Highly Crowded

Held by 1,946 of 5,944 reporting institutions (100th percentile) — extremely crowded.

Data as of Q1 2026

Institutional Ownership

85.53%

QoQ Change

-0.37%

Total Value

$86.0T

Shares Outstanding

120.2M

Crowding AnalysisHighly Crowded

Holders1,946of 5,944

Avg: 68

Uncrowded100th percentileCrowded

Institutional Activity

Buy/Sell Ratio0.95x

99th percentile

908 buying952 selling

+189

New

-158

Closed

-3,102,930

Net shares

Holding Period Distribution

estimate

Median: 5 QAvg: 5.2 QHolders: 1,946

Ownership Concentration

Top 5: 31.1%Top 10: 44.8%

BlackRock,11.1%

VANGUARD CAPITAL MANAGEMENT7.7%

STATE STREET5.6%

FMR3.5%

JPMORGAN CHASE &3.2%

Others (1941)68.9%

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Conviction-Weighted Ownership

Median weight: 0.17%Avg weight: 0.28%Max: 0.85%High conviction (>1%): 0

BlackRock,

VANGUARD CAPITAL MANAGEMENT

GEODE CAPITAL MANAGEMENT,

MASSACHUSETTS FINANCIAL SERVICES CO

VANGUARD PORTFOLIO MANAGEMENT

MORGAN STANLEY

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Whale Moves Timeline (8 Quarters)

Biggest dollar-value position changes among top 10 holders

NEWVANGUARD CAPITAL MANAGEMENT$6.9B8.0M shr

NEWVANGUARD PORTFOLIO MANAGEMENT$2.5B2.9M shr

BOUGHTJPMORGAN CHASE$584M679K shr

SOLDMASSACHUSETTS FINANCIAL SERVICES CO /MA$475M546K shr

BOUGHTFMR$345M398K shr

SOLDMASSACHUSETTS FINANCIAL SERVICES CO /MA$392M478K shr

BOUGHTFMR$227M276K shr

SOLDJPMORGAN CHASE$167M203K shr

BOUGHTBlackRock$159M194K shr

BOUGHTFRANKLIN RESOURCES$119M145K shr

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Institutional Trends (8 Quarters)

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Institutional Holders

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