Medifast, Inc. (MED) Ownership

NYSE: MEDTop holders, insider trades and short interest.

MED ownership summary

as of October 18, 2026
Institutions
75.0%
of shares outstanding
Insiders
4.33%
of shares outstanding
Shares outstanding
11.2M
Float
8.5M
shares available to trade
Short interest
9.76%
1.1M shares short
Days to cover
8.74
short interest down 44.1% vs prior month
  • Institutions 75.01%
  • Insiders 4.33%
  • Other investors 20.65%

MED top institutional holders

20 largest
Medifast, Inc. top institutional holders
#Holder% of sharesSharesValueChangeReported
1Renaissance Technologies Corp6.96%779K$9.2M+4,900 (+0.6%)June 30, 2026
2Steamboat Capital Partners, LLC6.32%707K$8.4M−891 (−0.1%)June 30, 2026
3Two Sigma Investments LLC4.31%481K$5.7M+143,223 (+42.4%)June 30, 2026
4Vanguard Capital Management, LLC3.99%447K$5.3M+2,147 (+0.5%)June 30, 2026
5Charles Schwab Investment Management Inc3.55%397K$4.7M−234,543 (−37.1%)June 30, 2026
6BlackRock Inc3.30%370K$4.4M−574,950 (−60.9%)June 30, 2026
7Dimensional Fund Advisors, Inc.3.25%363K$4.3M+1,632 (+0.5%)June 30, 2026
8American Century Companies Inc2.85%319K$3.8M+94,631 (+42.2%)June 30, 2026
9Morgan Stanley - Brokerage Accounts2.62%293K$3.5M−32,804 (−10.1%)June 30, 2026
10The Goldman Sachs Group Inc2.17%243K$2.9M+89,914 (+58.7%)June 30, 2026
11Marshall Wace Asset Management Ltd2.16%242K$2.9M+241,649 (0.0%)June 30, 2026
12AQR Capital Management LLC2.11%236K$2.8M+90,859 (+62.4%)June 30, 2026
13Peapod Lane Capital LLC1.99%223K$2.6M+3,513 (+1.6%)June 30, 2026
14Lido Advisors, LLC1.97%220K$2.6M+37,302 (+20.4%)June 30, 2026
15Trexquant Investment LP1.90%213K$2.5M+32,603 (+18.1%)June 30, 2026
16Jane Street Group LLC1.47%165K$2.0M+38,474 (+30.4%)June 30, 2026
17COMMONS CAPITAL, LLC1.34%150K$1.8M+111,916 (+294.5%)June 30, 2026
18Quinn Opportunity Partners LLC1.14%127K$1.5M—June 30, 2026
19Geode Capital Management, LLC1.08%121K$1.4M−132,244 (−52.2%)June 30, 2026
20Bridgeway Capital Management, LLC1.05%117K$1.4M−40,000 (−25.5%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 13 holders added 893K shares and 6 cut 1.0M.

MED top mutual fund and ETF holders

20 largest
Medifast, Inc. top fund holders
#Holder% of sharesSharesValueChangeReported
1Avantis US Small Cap Value ETF3.43%384K$4.6M+864 (+0.2%)September 30, 2026
2Vanguard MStar Total Stk Mkt Idx Invest2.85%319K$3.8M—August 31, 2026
3Schwab Fundamental U.S. Small CompanyETF1.18%132K$1.6M+182 (+0.1%)September 30, 2026
4iShares U.S. Small-Cap Eq Fac ETF1.10%123K$1.5M—September 30, 2026
5DFA US Small Cap Value I0.99%111K$1.3M—August 31, 2026
6Dimensional US Small Cap Value ETF0.54%61K$719,583—September 24, 2026
7Fidelity Extended Market Index0.53%59K$704,436+1,000 (+1.7%)August 31, 2026
8EA Bridgeway Omni Small-Cap Value ETF0.48%54K$638,467—September 30, 2026
9DFA US Small Cap I0.40%44K$526,997—August 31, 2026
10Federated Hermes MDT Small Cap Core ETF0.39%43K$516,661−364 (−0.8%)September 30, 2026
11Bridgeway Ultra-Small Company0.37%41K$485,892−25,000 (−37.9%)June 30, 2026
12Federated Hermes MDT Small Cap Value A0.35%39K$466,836−4,257 (−9.8%)June 30, 2026
13Dimensional US Small Cap ETF0.34%38K$446,332—September 30, 2026
14iShares Micro-Cap ETF0.31%35K$413,673−240 (−0.7%)September 30, 2026
15Schwab Fundamental US Small Company Idx0.31%34K$408,921−34,049 (−49.7%)September 30, 2026
16Victory Small Cap Stock0.30%33K$393,062—June 30, 2026
17Vanguard US Multifactor Admiral™0.26%29K$345,803+14,330 (+97.0%)June 30, 2026
18DFA US Micro Cap I0.24%26K$312,622+3,297 (+14.3%)August 31, 2026
19Goldman Sachs Absolute Ret Trckr Instl0.23%25K$302,346+14,773 (+138.4%)June 30, 2026
20Fidelity Total Market Index0.17%19K$227,775—August 31, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

MED insider transactions

latest 2
Medifast, Inc. insider transactions
DateNameTransactionPriceSharesValue
2026-03-20Daniel R ChardBuy$10.1117,678$178,725
2025-06-13Daniel R ChardBuy$13.13381$5,003

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

MED shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns MED

Institutional investors own 75.0% of Medifast's shares and insiders 4.33%. The largest holder is Renaissance Technologies Corp with 6.96% of the shares (779K), as of June 30, 2026. Among the top 20 institutions, 13 added shares and 6 reduced their stake in the latest filings. Short interest is 9.76% of the float, or 8.74 days of average trading volume. The share count fell 9.7% since 2014.

Related: MED analyst forecast, MED key metrics. See the MED stock overview for the latest quote and news.

MED ownership FAQ

Who owns the most Medifast stock?

The largest shareholders of Medifast are Renaissance Technologies Corp (6.96%), Steamboat Capital Partners, LLC (6.32%), Two Sigma Investments LLC (4.31%), Vanguard Capital Management, LLC (3.99%), Charles Schwab Investment Management Inc (3.55%).

What percentage of Medifast is owned by institutions?

Institutions hold 75.0% of Medifast's shares outstanding; insiders hold 4.33%.

Which funds own Medifast?

The largest fund holders of Medifast are Avantis US Small Cap Value ETF (3.43%), Vanguard MStar Total Stk Mkt Idx Invest (2.85%), Schwab Fundamental U.S. Small CompanyETF (1.18%), iShares U.S. Small-Cap Eq Fac ETF (1.10%), DFA US Small Cap Value I (0.99%).

What is Medifast's short interest?

1.1M shares of Medifast were sold short, 9.76% of the float; at the average daily volume it would take 8.74 days to cover.

Are insiders buying or selling Medifast?

Of the latest 2 reported insider transactions in Medifast (since June 13, 2025), 2 were purchases and 0 were sales.

How many shares of Medifast are outstanding?

Medifast has 11.2M shares outstanding, of which 8.5M are in the public float.

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