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
Q4 2025Renaissance Technologies LLCSell-61,14061,286$50,272,293
Q4 2025Cullen Value FundBuy3,9524,670$3,811,230
Q3 2025Sequoia Financial AdvisorsBuy299,017$6,965,793
Q3 2025Muhlenkamp & CoBuy2427,108$20,942,214
Q3 2025Renaissance Technologies LLCSell-75,700122,426$94,578,982
Q3 2025Cullen Value FundBuy1718$529,702
Q2 2025Sequoia Financial AdvisorsBuy2928,988$6,586,618
Q2 2025Muhlenkamp & CoSell-11,50527,084$19,846,781
Q2 2025Renaissance Technologies LLCBuy197,326198,126$145,182,770
Q2 2025Cullen Value FundSell-14717$525,136
Q1 2025Renaissance Technologies LLCSell-234,426800$538,392
Q1 2025Sequoia Financial AdvisorsBuy1,6888,696$5,852,381
Q1 2025Muhlenkamp & CoSell-7238,589$25,970,143
Q1 2025Cullen Value FundSell-66731$492,014
Q4 2024Sequoia Financial AdvisorsBuy4147,008$3,994,142
Q4 2024Muhlenkamp & CoBuy5438,661$22,033,380
Q4 2024Renaissance Technologies LLCBuy147,600235,226$134,057,650
Q4 2024Cullen Value FundBuy8797$454,247
Q3 2024Sequoia Financial AdvisorsBuy2266,594$3,260,006
Q3 2024Muhlenkamp & CoSell-2938,607$19,088,128
Q3 2024Renaissance Technologies LLCBuy85,02687,626$43,324,047
Q2 2024Sequoia Financial AdvisorsBuy1436,368$3,719,373
Q2 2024Muhlenkamp & CoSell-5538,636$22,564,969
Q2 2024Hancock Classic ValueSell-30,88567,079$39,176,819
Q2 2024Viking Global InvestorsSell-448,411142,169$83,032,383
Q2 2024Cullen Value FundSell-46789$460,619
Q1 2024Renaissance Technologies LLCSell-43,7002,600$1,396
Q1 2024Sequoia Financial AdvisorsSell-6496,225$3,342,086
Q1 2024Muhlenkamp & CoBuy20938,691$20,771,263
Q1 2024Hancock Classic ValueSell-19997,964$52,591,973

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.