Who owns MEDIFAST INC?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of MED from SEC Form 13F filings across 113 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 113 institutions disclosed 8.3M shares of MEDIFAST INC worth $87.7M — about 74.2% of shares outstanding; the largest disclosed holder is RENAISSANCE TECHNOLOGIES LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
113
13F holders
$87.7M
value, 2026 filers
74.2%
of shares outstanding (8.3M sh)
27
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of MED's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | RENAISSANCE TECHNOLOGIES LLC | 778,610 | $8.3M | 0.0% | 7% | +0.6% |
| 2 | Steamboat Capital Partners, LLC | 706,699 | $7.5M | 1.6% | 6.3% | -0.1% |
| 3 | TWO SIGMA INVESTMENTS, LP | 481,381 | $5.1M | 0.0% | 4.3% | +42.4% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 446,614 | $4.7M | 0.0% | 4% | +0.5% |
| 5 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 396,996 | $4.2M | 0.0% | 3.6% | -37.1% |
| 6 | BlackRock, Inc. | 369,503 | $3.9M | 0.0% | 3.3% | -60.9% |
| 7 | DIMENSIONAL FUND ADVISORS LP | 363,394 | $3.9M | 0.0% | 3.3% | +0.5% |
| 8 | AMERICAN CENTURY COMPANIES INC | 318,911 | $3.4M | 0.0% | 2.9% | +42.2% |
| 9 | MORGAN STANLEY | 292,508 | $3.1M | 0.0% | 2.6% | -10.1% |
| 10 | GOLDMAN SACHS GROUP INC | 243,085 | $2.6M | 0.0% | 2.2% | +58.7% |
| 11 | MARSHALL WACE, LLPNEW | 241,649 | $2.6M | 0.0% | 2.2% | new |
| 12 | AQR CAPITAL MANAGEMENT LLC | 236,434 | $2.5M | 0.0% | 2.1% | +62.4% |
| 13 | Peapod Lane Capital LLC | 222,576 | $2.4M | 1.6% | 2% | +1.6% |
| 14 | Lido Advisors, LLC | 220,337 | $2.3M | 0.0% | 2% | +20.4% |
| 15 | Trexquant Investment LP | 212,684 | $2.3M | 0.0% | 1.9% | +18.1% |
| 16 | JANE STREET GROUP, LLC | 164,881 | $1.7M | 0.0% | 1.5% | +30.4% |
| 17 | COMMONS CAPITAL, LLC | 149,916 | $1.6M | 1.1% | 1.3% | +294.5% |
| 18 | Quinn Opportunity Partners LLC | 127,112 | $1.3M | 0.1% | 1.1% | 0.0% |
| 19 | GEODE CAPITAL MANAGEMENT, LLC | 121,071 | $1.3M | 0.0% | 1.1% | -52.2% |
| 20 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 117,078 | $1.2M | 0.0% | 1.1% | -25.5% |
| 21 | RBF Capital, LLCNEW | 109,000 | $1.2M | 0.0% | 1% | new |
| 22 | JPMORGAN CHASE & CO | 92,512 | $989,878 | 0.0% | 0.8% | +6.1% |
| 23 | D. E. Shaw & Co., Inc. | 92,345 | $979,780 | 0.0% | 0.8% | -42.5% |
| 24 | BANK OF AMERICA CORP /DE/ | 87,118 | $924,323 | 0.0% | 0.8% | -1.9% |
| 25 | Quantinno Capital Management LP | 82,997 | $880,598 | 0.0% | 0.7% | +47.8% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.