MCKESSON CORP (MCK) Stock Institutional Trading Activity


MCKESSON CORP (MCK) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC, Cullen Value Fund, Sequoia Financial Advisors, Muhlenkamp & Co, and Viking Global Investors. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2024Lone Pine CapitalBuy560,936560,936$301,138,492
Q1 2024Viking Global InvestorsSell-1,642,625590,580$317,052,873
Q1 2024Cullen Value FundSell-31835$445,470
Q4 2023Sequoia Financial AdvisorsBuy1,5286,874$3,182,355
Q4 2023Muhlenkamp & CoBuy21538,482$17,816,396
Q4 2023Hancock Classic ValueSell-75698,163$45,447,506
Q4 2023Third PointSell-460,600165,000$76,391,700
Q4 2023Viking Global InvestorsBuy775,4802,233,205$1,033,929,251
Q4 2023Cullen Value FundBuy866866$400,928
Q3 2023Renaissance Technologies LLCSell-73,50146,300$20,134
Q3 2023Sequoia Financial AdvisorsBuy295,346$2,324,550
Q3 2023Muhlenkamp & CoSell-5838,267$16,640,405
Q3 2023Viking Global InvestorsBuy933,5821,457,725$633,891,716
Q3 2023Hancock Classic ValueSell-518,93298,919$43,014,927
Q2 2023Renaissance Technologies LLCBuy31,975119,801$51,192
Q2 2023Sequoia Financial AdvisorsBuy3425,317$2,271,830
Q2 2023Muhlenkamp & CoBuy7638,325$16,376,656
Q2 2023Viking Global InvestorsSell-2,682,937524,143$223,971,545
Q2 2023Hancock Classic ValueSell-24,998617,851$264,013,911
Q1 2023Renaissance Technologies LLCSell-59,90687,826$31,270
Q1 2023Sequoia Financial AdvisorsBuy1,2194,975$1,771,490
Q1 2023Berkshire HathawaySell-565,6502,289,864$815,306,077
Q1 2023Viking Global InvestorsBuy1,002,6623,207,080$1,141,880,834
Q1 2023Hancock Classic ValueSell-330,689642,849$228,886,386
Q4 2022Renaissance Technologies LLCBuy146,632147,732$55,417
Q4 2022Sequoia Financial AdvisorsBuy2,6843,756$1,409,085
Q4 2022Muhlenkamp & CoBuy4038,249$14,347,965
Q4 2022Viking Global InvestorsSell-404,1622,204,418$826,921,280
Q4 2022Berkshire HathawaySell-342,8302,855,514$1,071,160,412
Q4 2022Hancock Classic ValueSell-747,521973,538$365,193,575

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.