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Who owns Medifast (MED) stock

98 funds reported Medifast (MED) shares in their latest 13F filings, worth $92.6M in all. The largest holder is Renaissance Technologies LLC ($8.3M). Last quarter 64 funds added to their stakes and 47 cut them.

Largest holders of MED (13F)Largest holders of MED (13F)Renaissance Technologies LLC$8.3MVanguard Group$7.6MSteamboat Capital Partners, LLC$7.5MTwo Sigma Investments, LP$5.1MVanguard Capital Management LLC$4.7MCharles Schwab Investment Managem…$4.2MBlackRock$3.9MDimensional Fund Advisors LP$3.9MAmerican Century Companies$3.4MMorgan Stanley$3.1M

Largest holders (13F)

FundSharesValueChangeQuarter
Renaissance Technologies LLC778,610$8.3Mincrease2026-06-30
Vanguard Group711,499$7.6Mincrease2025-12-31
Steamboat Capital Partners, LLC706,699$7.5Mnew2026-06-30
Two Sigma Investments, LP481,381$5.1Mincrease2026-06-30
Vanguard Capital Management LLC446,614$4.7Mincrease2026-06-30
Charles Schwab Investment Management396,996$4.2Mdecrease2026-06-30
BlackRock369,503$3.9Mdecrease2026-06-30
Dimensional Fund Advisors LP363,394$3.9Mincrease2026-06-30
American Century Companies318,911$3.4Mincrease2026-06-30
Morgan Stanley292,508$3.1Mdecrease2026-06-30
Goldman Sachs Group243,085$2.6Mincrease2026-06-30
Marshall Wace, LLP241,649$2.6Mnew2026-06-30
AQR Capital Management LLC236,434$2.5Mincrease2026-06-30
Peapod Lane Capital LLC207,502$2.4Mdecrease2026-09-30
Lido Advisors, LLC220,337$2.3Mincrease2026-06-30

Medifast's latest quarter

Medifast, Q3 2026: revenue $72.0M (-19% year over year), operating margin -26.9%, net loss $17.5M, operating cash flow $3.3M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most MED stock?

By the latest 13F filings: Renaissance Technologies LLC ($8.3M); Vanguard Group ($7.6M); Steamboat Capital Partners, LLC ($7.5M); Two Sigma Investments, LP ($5.1M); Vanguard Capital Management LLC ($4.7M).

What is the short interest in MED?

1,157,639 shares were sold short at the 2026-10-15 settlement, 9.91% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.