MMC Institutional Ownership Changes & 13F Activity


MARSH & MCLENNAN COS (MMC) institutional ownership data tracks hedge funds, asset managers, pension funds, and institutional investors holding Amazon shares based on recent SEC 13F filings (Q1 2026). Recent filings show notable position changes from firms including Parnassus Endeavor Fund, Jensen Investment Management, Torray Fund, Sequoia Financial Advisors, and Yacktman Asset Management. This page analyzes institutional buying and selling activity, increased and reduced positions, new holdings, and sold-out positions to help investors understand institutional sentiment, portfolio allocation trends, and hedge fund conviction in MARSH & MCLENNAN COS stock.


Key Insights:

Related MMC Insights:

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2024AKO CapitalBuy89,5942,062,828$438,165
Q4 2024Sequoia Financial AdvisorsBuy15,079130,509$27,721,342
Q4 2024Renaissance Technologies LLCBuy193,200503,100$106,863,471
Q4 2024Parnassus Endeavor FundSell-705,7393,569,141$758,121,240
Q3 2024Jensen Investment ManagementSell-175,4273,050,831$680,609,888
Q3 2024Mairs & Power Growth FundBuy361,374$306,526
Q3 2024AKO CapitalBuy486,2531,973,234$440,209
Q3 2024Sequoia Financial AdvisorsBuy13,405115,430$25,751,316
Q3 2024Renaissance Technologies LLCSell-29,700309,900$69,135,591
Q3 2024Parnassus Endeavor FundBuy85,7544,274,880$953,682,979
Q2 2024Torray FundBuy11,99377,877$16,410,241
Q2 2024Jensen Investment ManagementBuy40,1823,226,258$679,837,086
Q2 2024AKO CapitalBuy211,9301,486,981$313,337
Q2 2024Mairs & Power Growth FundSell-8401,338$281,943
Q2 2024Sequoia Financial AdvisorsBuy15,565102,025$21,498,747
Q2 2024Renaissance Technologies LLCBuy59,581339,600$71,560,512
Q2 2024Parnassus Endeavor FundSell-29,0424,189,126$882,732,631
Q1 2024Torray FundSell-21,13865,884$17,924,792
Q1 2024Jensen Investment ManagementBuy237,0713,186,076$656,267,934
Q1 2024AKO CapitalBuy93,8091,275,051$262,635
Q1 2024Renaissance Technologies LLCSell-82,381280,019$57,678
Q1 2024Mairs & Power Growth FundBuy192,178$448,624
Q1 2024Sequoia Financial AdvisorsSell-4,71086,460$17,808,977
Q1 2024Parnassus Endeavor FundSell-41,3994,218,168$868,858,245
Q4 2023Jensen Investment ManagementSell-67,4712,949,005$558,747,977
Q4 2023AKO CapitalBuy303,9671,181,242$223,810
Q4 2023Olstein Capital ManagementSell-10,0006,000$1,137
Q4 2023Renaissance Technologies LLCBuy231,700362,400$68,664
Q4 2023Mairs & Power Growth FundSell-132,159$409,066
Q4 2023Sequoia Financial AdvisorsBuy87,25691,170$17,274,083

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.