MEDIFAST INC (MED) Institutional Ownership Changes & 13F Activity

MEDIFAST INC (MED) 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 Renaissance Technologies LLC, Miller Value Partners, Engaged Capital, and Polen Capital Management.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Renaissance Technologies LLCSell-6,900773,710$7,884,105
Q4 2025Renaissance Technologies LLCSell-20,300780,610$8,336,915
Q3 2025Renaissance Technologies LLCSell-12,400800,910$10,948,440
Q2 2025Renaissance Technologies LLCSell-75,618813,310$11,427,006
Q1 2025Renaissance Technologies LLCSell-14,806888,928$11,982,749
Q4 2024Renaissance Technologies LLCSell-102,476903,734$15,923,793
Q3 2024Renaissance Technologies LLCBuy47,6001,006,210$19,258,859
Q2 2024Renaissance Technologies LLCBuy161,487958,610$20,916,870
Q1 2024Renaissance Technologies LLCBuy39,513797,123$30,546
Q4 2023Renaissance Technologies LLCBuy3,400757,610$50,927
Q3 2023Renaissance Technologies LLCBuy73,600754,210$56,453
Q3 2023Miller Value PartnersSell-2,70042,100$3,151,185
Q2 2023Renaissance Technologies LLCBuy29,600680,610$62,725
Q1 2023Renaissance Technologies LLCBuy18,900651,010$67,490
Q1 2023Miller Value PartnersBuy13,30044,800$4,644,416
Q4 2022Miller Value PartnersSell-174,09531,500$3,633,525
Q4 2022Renaissance Technologies LLCSell-51,700632,110$72,914
Q3 2022Renaissance Technologies LLCSell-76,600683,810$74,098
Q2 2022Renaissance Technologies LLCSell-10,900760,410$137,262
Q1 2022Renaissance Technologies LLCSell-26,300771,310$131,724
Q4 2021Renaissance Technologies LLCSell-43,300797,610$167,043
Q3 2021Renaissance Technologies LLCSell-54,300840,910$161,993
Q2 2021Renaissance Technologies LLCBuy800895,210$253,327
Q1 2021Renaissance Technologies LLCSell-116,100894,410$189,454
Q4 2020Renaissance Technologies LLCBuy21,0001,010,510$198,404
Q3 2020Engaged CapitalSell-892,833267,543$43,997
Q3 2020Miller Value PartnersSell-353,675205,595$33,810
Q3 2020Renaissance Technologies LLCBuy73,600989,510$162,725
Q2 2020Miller Value PartnersSell-152,283559,270$77,610
Q2 2020Renaissance Technologies LLCBuy22,000915,910$127,101

Frequently asked questions about MED activity

  • Which institutional owners are buying MED?

    Institutional owners buying MED 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 MED activity?

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

  • Is institutional interest in MED increasing?

    Institutional interest in MED 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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