MICRON TECHNOLOGY INC (MU) Stock Institutional Trading Activity


MICRON TECHNOLOGY INC (MU) 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, Appaloosa Management, Cullen Value Fund, Donald Smith & Co., and Parnassus Endeavor Fund. 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 2021Donald Smith & Co.Sell-59,958638,530$59,479
Q4 2021Yacktman Asset ManagementSell-1,434685,503$63,855
Q4 2021Parnassus Endeavor FundSell-44,7616,783,924$631,923
Q4 2021Matrix Private Capital GroupSell-754,146$387
Q4 2021Sequoia Financial AdvisorsBuy13,69813,698$1,276
Q4 2021Dalal StreetBuy244,6621,823,812$169,888
Q4 2021Baupost GroupSell-3,913,0003,250,416$302,776
Q4 2021Renaissance Technologies LLCBuy2,431,3004,066,036$378,751
Q4 2021Sequoia FundSell-264,0917,778,137$724,533
Q3 2021Donald Smith & Co.Buy576698,488$49,579
Q3 2021Yacktman Asset ManagementBuy1,224686,937$48,759
Q3 2021Parnassus Endeavor FundBuy226,2946,828,685$484,700
Q3 2021Matrix Private Capital GroupBuy674,221$300
Q3 2021Dalal StreetBuy27,1501,579,150$112,088
Q3 2021Renaissance Technologies LLCSell-388,5001,634,736$116,034
Q3 2021Appaloosa ManagementSell-2,902,6912,750,000$195,195
Q3 2021Sequoia FundSell-106,4938,042,228$570,837
Q2 2021Donald Smith & Co.Buy617697,912$59,309
Q2 2021Yacktman Asset ManagementSell-17,278685,713$58,272
Q2 2021Parnassus Endeavor FundSell-3,564,4876,602,391$561,071
Q2 2021Matrix Private Capital GroupSell-2584,154$353
Q2 2021Fairfax Financial HoldingsBuy5,200690,200$58,653
Q2 2021Renaissance Technologies LLCSell-1,331,8002,023,236$171,935
Q2 2021Appaloosa ManagementSell-1,622,3095,652,691$480,366
Q2 2021Baupost GroupBuy1,740,0007,163,416$608,747
Q2 2021Sequoia FundBuy2,823,5788,148,721$692,478
Q1 2021Donald Smith & Co.Sell-172,066697,295$61,508
Q1 2021Yacktman Asset ManagementSell-5,496702,991$62,011
Q1 2021Parnassus Endeavor FundSell-2,392,41210,166,878$896,820
Q1 2021Matrix Private Capital GroupSell-254,412$389

Frequently asked questions about MU activity

  • Which institutional owners are buying MU?

    Institutional owners buying MU 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 MU activity?

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

  • Is institutional interest in MU increasing?

    Institutional interest in MU 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.