MCKESSON CORP (MCK) Institutional Ownership Changes & 13F Activity

MCKESSON CORP (MCK) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Lone Pine Capital, Renaissance Technologies LLC, Cullen Value Fund, Sequoia Financial Advisors, and Muhlenkamp & Co.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2021Renaissance Technologies LLCBuy167,400420,826$82,078
Q1 2021Hancock Classic ValueSell-38,8133,050,610$594,991
Q1 2021Muhlenkamp & CoSell-5,50765,548$13,314
Q4 2020Hancock Classic ValueSell-245,9753,089,423$537,312
Q4 2020Renaissance Technologies LLCBuy23,100253,426$44,076
Q4 2020Muhlenkamp & CoBuy20471,055$12,358
Q3 2020Hancock Classic ValueBuy338,9123,335,398$496,741
Q3 2020Renaissance Technologies LLCSell-13,888230,326$34,302
Q3 2020Muhlenkamp & CoBuy31270,851$10,552
Q2 2020Hancock Classic ValueSell-451,0462,996,486$459,721
Q2 2020Renaissance Technologies LLCBuy110,888244,214$37,467
Q2 2020Muhlenkamp & CoSell-270,539$10,822
Q1 2020Hancock Classic ValueSell-313,0633,447,532$466,313
Q1 2020Baupost GroupBuy71,6651,669,181$225,773
Q1 2020Renaissance Technologies LLCBuy71,626133,326$18,034
Q4 2019Viking Global InvestorsSell-1,253,5821,508,413$208,644
Q4 2019Vulcan Value PartnersSell-842,8822,278,129$315,111
Q4 2019Baupost GroupBuy291,5051,597,516$220,968
Q4 2019Hancock Classic ValueBuy114,2613,760,595$520,166
Q4 2019Muhlenkamp & CoBuy370,541$9,757
Q3 2019Baupost GroupSell-1,289,0001,306,011$178,479
Q3 2019Vulcan Value PartnersSell-876,4373,121,011$426,517
Q3 2019Hancock Classic ValueSell-214,4513,646,334$498,308
Q3 2019Renaissance Technologies LLCBuy32,60061,700$8,432
Q3 2019Muhlenkamp & CoBuy1,11070,538$9,640
Q2 2019Vulcan Value PartnersSell-220,8533,997,448$537,217
Q2 2019Baupost GroupSell-220,0002,595,011$348,744
Q2 2019Renaissance Technologies LLCSell-213,81029,100$3,911
Q2 2019Hancock Classic ValueBuy177,5893,860,785$518,851
Q2 2019Muhlenkamp & CoSell-17269,428$9,330

Frequently asked questions about MCK activity

  • Which institutional owners are buying MCK?

    Institutional owners buying MCK include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in MCK activity?

    "Buy" means an investor increased their reported position in MCK compared to the prior reporting period. This reflects growing exposure to MCKESSON CORP (MCK) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in MCK increasing?

    Institutional interest in MCK can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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