MARSH & MCLENNAN COS (MMC) Institutional Ownership Changes & 13F Activity

MARSH & MCLENNAN COS (MMC). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include AKO Capital, Jensen Investment Management, Parnassus Endeavor Fund, Renaissance Technologies LLC, and Torray Fund.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2024Mairs & Power Growth FundBuy192,178$448,624
Q4 2023AKO CapitalBuy303,9671,181,242$223,810
Q4 2023Renaissance Technologies LLCBuy231,700362,400$68,664
Q4 2023Sequoia Financial AdvisorsBuy87,25691,170$17,274,083
Q4 2023Jensen Investment ManagementSell-67,4712,949,005$558,747,977
Q4 2023Viking Global InvestorsSell-19,737237,706$45,038,156
Q4 2023Parnassus Endeavor FundBuy11,4594,259,567$807,060,159
Q4 2023Olstein Capital ManagementSell-10,0006,000$1,137
Q4 2023Mairs & Power Growth FundSell-132,159$409,066
Q3 2023AKO CapitalBuy161,498877,275$166,945
Q3 2023Jensen Investment ManagementBuy86,2823,016,476$574,035,383
Q3 2023Parnassus Endeavor FundSell-83,3784,248,108$808,414,952
Q3 2023Olstein Capital ManagementSell-1,00016,000$3,045
Q3 2023Sequoia Financial AdvisorsBuy1913,914$744,852
Q2 2023AKO CapitalBuy715,777715,777$134,623
Q2 2023Parnassus Endeavor FundBuy55,0414,331,486$814,665,887
Q2 2023Jensen Investment ManagementBuy35,5962,930,194$551,110,888
Q2 2023Renaissance Technologies LLCBuy5,299130,700$24,582
Q2 2023Sequoia Financial AdvisorsBuy2893,723$700,267
Q2 2023Mairs & Power Growth FundBuy322,172$408,510
Q1 2023Viking Global InvestorsSell-749,455257,443$42,877,132
Q1 2023Jensen Investment ManagementBuy279,1342,894,598$477,261,318
Q1 2023Renaissance Technologies LLCSell-163,800125,401$20,886
Q1 2023Parnassus Endeavor FundSell-32,0604,276,445$712,241,914
Q1 2023Mairs & Power Growth FundBuy6562,140$356,417
Q1 2023Torray FundBuy9087,022$14,493,514
Q1 2023Sequoia Financial AdvisorsSell-443,434$571,960
Q4 2022Jensen Investment ManagementBuy398,1792,615,464$432,806,983
Q4 2022Renaissance Technologies LLCSell-33,800289,201$47,857
Q4 2022Parnassus Endeavor FundSell-18,3364,308,505$712,971,407

Frequently asked questions about MMC activity

  • Which institutional owners are buying MMC?

    Institutional owners buying MMC 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 MMC activity?

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

  • Is institutional interest in MMC increasing?

    Institutional interest in MMC 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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