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
Q4 2017Arbiter Partners Capital ManagementBuy40,00088,000$13,724
Q4 2017Muhlenkamp & CoSell-1,00969,947$10,908
Q4 2017Sequoia Financial AdvisorsSell-131,918$299
Q3 2017Baupost GroupSell-500,000500,000$76,805
Q3 2017Renaissance Technologies LLCSell-435,700565,200$86,820
Q3 2017Hancock Classic ValueBuy360,6762,458,531$377,655
Q3 2017Vulcan Value PartnersBuy39,6863,306,897$507,972
Q3 2017Parnassus Endeavor FundBuy3,3124,432,150$680,823
Q3 2017Muhlenkamp & CoSell-40970,956$10,900
Q3 2017Sequoia Financial AdvisorsBuy131,931$297
Q2 2017Renaissance Technologies LLCBuy242,6001,000,900$164,688
Q2 2017Parnassus Endeavor FundBuy148,2444,428,838$728,721
Q2 2017Vulcan Value PartnersSell-133,6693,267,211$537,587
Q2 2017Hancock Classic ValueBuy20,7512,097,855$345,181
Q2 2017Muhlenkamp & CoBuy1,29171,365$11,742
Q1 2017Parnassus Endeavor FundBuy3,236,5944,280,594$620,727
Q1 2017Hancock Classic ValueBuy1,890,8152,077,104$307,951
Q1 2017Appaloosa ManagementSell-175,000100,000$14,826
Q1 2017Vulcan Value PartnersSell-60,3143,400,880$504,214
Q1 2017Arbiter Partners Capital ManagementBuy25,00048,000$7,116
Q1 2017Muhlenkamp & CoSell-1,69370,074$10,389
Q1 2017Sequoia Financial AdvisorsBuy7661,918$284
Q4 2016Vulcan Value PartnersBuy1,775,4673,461,194$486,125
Q4 2016Parnassus Endeavor FundBuy1,004,0001,044,000$146,630
Q4 2016Baupost GroupBuy1,000,0001,000,000$140,450
Q4 2016Appaloosa ManagementBuy275,000275,000$38,624
Q4 2016Hancock Classic ValueBuy186,289186,289$26,164
Q4 2016Muhlenkamp & CoBuy26,01471,767$10,080
Q4 2016Arbiter Partners Capital ManagementBuy20,00023,000$3,230
Q3 2016Vulcan Value PartnersBuy1,685,7271,685,727$281,095

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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