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 2023Sequoia Financial AdvisorsBuy1,2194,975$1,771,490
Q4 2022Hancock Classic ValueSell-747,521973,538$365,193,575
Q4 2022Viking Global InvestorsSell-404,1622,204,418$826,921,280
Q4 2022Berkshire HathawaySell-342,8302,855,514$1,071,160,412
Q4 2022Renaissance Technologies LLCBuy146,632147,732$55,417
Q4 2022Sequoia Financial AdvisorsBuy2,6843,756$1,409,085
Q4 2022Muhlenkamp & CoBuy4038,249$14,347,965
Q3 2022Viking Global InvestorsBuy983,0652,608,580$886,578
Q3 2022Hancock Classic ValueSell-712,3011,721,059$584,936
Q3 2022Sequoia Financial AdvisorsSell-6701,072$364
Q3 2022Muhlenkamp & CoBuy28538,209$12,986
Q2 2022Berkshire HathawayBuy276,3693,198,344$1,043,331
Q2 2022Hancock Classic ValueSell-269,1302,433,360$793,786
Q2 2022Viking Global InvestorsBuy117,1021,625,515$530,259
Q2 2022Renaissance Technologies LLCSell-45,8261,100$359
Q2 2022Muhlenkamp & CoSell-27,66137,924$12,371
Q2 2022Sequoia Financial AdvisorsBuy91,742$569
Q1 2022Berkshire HathawayBuy2,921,9752,921,975$894,504
Q1 2022Hancock Classic ValueSell-248,2102,702,490$827,313
Q1 2022Sequoia Financial AdvisorsBuy2451,733$531
Q1 2022Muhlenkamp & CoBuy8565,585$20,078
Q4 2021Renaissance Technologies LLCSell-522,60046,926$11,664
Q4 2021Hancock Classic ValueSell-28,3152,950,700$733,455
Q4 2021Sequoia Financial AdvisorsSell-3731,488$370
Q4 2021Muhlenkamp & CoSell-4865,500$16,281
Q3 2021Hancock Classic ValueSell-210,2652,979,015$593,956
Q3 2021Muhlenkamp & CoSell-8365,548$13,069
Q2 2021Renaissance Technologies LLCBuy148,700569,526$108,916
Q2 2021Hancock Classic ValueBuy138,6703,189,280$609,918
Q2 2021Muhlenkamp & CoBuy8365,631$12,551

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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