MEDIFAST INC (MED) Top Institutional Shareholders
MEDIFAST INC (MED) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $87.95M in MED holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of MED tracked by InsiderSet, reporting ownership valued at approximately $9.62M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $10.63M, representing an estimated gain of +10.40% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 58% of the total disclosed MED value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Renaissance Technologies LLC, Steamboat Capital Partners, Llc, and several other long-term asset managers with concentrated positions in MEDIFAST INC (MED).
This page ranks the largest institutional MED shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
109
Total Reported Value
$87.95M
Largest Holder
Blackrock, Inc.
Largest Position
$9.62M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
134
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 944,453 | $9,623,975 | $10,625,096 | +$1,001,121 | +10.40% | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 773,710 | $7,884,105 | $8,704,238 | +$820,133 | +10.40% |
| Steamboat Capital Partners, Llc | 1.79% | 707,590 | $7,210,342 | $7,960,388 | +$750,046 | +10.40% | |
| Charles Schwab Investment Management Inc | 0.00% | 631,539 | $6,435,382 | $7,104,814 | +$669,432 | +10.40% | |
| Vanguard Capital Management Llc | 0.00% | 444,467 | $4,529,119 | $5,000,254 | +$471,135 | +10.40% | |
| Dimensional Fund Advisors Lp | 0.00% | 361,762 | $3,686,270 | $4,069,823 | +$383,553 | +10.40% | |
| Two Sigma Investments, Lp | 0.00% | 338,158 | $3,445,830 | $3,804,278 | +$358,448 | +10.40% | |
| Morgan Stanley | 0.00% | 325,312 | $3,314,942 | $3,659,760 | +$344,818 | +10.40% | |
| Geode Capital Management, Llc | 0.00% | 253,315 | $2,581,952 | $2,849,794 | +$267,842 | +10.37% | |
| Man Group Plc | 0.00% | 236,212 | $2,407,000 | $2,657,385 | +$250,385 | +10.40% | |
| American Century Companies Inc | 0.00% | 224,280 | $2,285,413 | $2,523,150 | +$237,737 | +10.40% | |
| State Street Corp | 0.00% | 222,638 | $2,268,681 | $2,504,678 | +$235,997 | +10.40% | |
| Peapod Lane Capital Llc | 1.82% | 219,063 | $2,213,788 | $2,464,459 | +$250,671 | +11.32% | |
| Vanguard Portfolio Management Llc | 0.00% | 202,829 | $2,066,828 | $2,281,826 | +$214,998 | +10.40% | |
| Lido Advisors, Llc | 0.01% | 183,035 | $1,865,130 | $2,059,144 | +$194,014 | +10.40% | |
| Trexquant Investment Lp | 0.01% | 180,081 | $1,835,025 | $2,025,911 | +$190,886 | +10.40% | |
| D. E. Shaw & Co., Inc. | 0.00% | 160,564 | $1,636,147 | $1,806,345 | +$170,198 | +10.40% | |
| Bridgeway Capital Management, Llc | 0.03% | 157,078 | $1,600,625 | $1,767,128 | +$166,503 | +10.40% | |
| Goldman Sachs Group Inc | 0.00% | 153,171 | $1,560,812 | $1,723,174 | +$162,362 | +10.40% | |
| Aqr Capital Management Llc | 0.00% | 145,575 | $1,483,408 | $1,637,719 | +$154,311 | +10.40% | |
| Independent Financial Group, Llc | 0.02% | 5,978 | $1,370,323 | $67,253 | -$1,303,071 | -95.09% | |
| Quinn Opportunity Partners Llc | 0.07% | 127,112 | $1,295,271 | $1,430,010 | +$134,739 | +10.40% | |
| Jane Street Group, Llc | 0.00% | 126,407 | $1,288,087 | $1,422,079 | +$133,992 | +10.40% | |
| Northern Trust Corp | 0.00% | 92,595 | $943,544 | $1,041,694 | +$98,150 | +10.40% | |
| Jump Financial, Llc | 0.01% | 90,875 | $926,016 | $1,022,344 | +$96,328 | +10.40% | |
| Bank Of America Corp | 0.00% | 88,777 | $904,637 | $998,741 | +$94,104 | +10.40% | |
| Divisadero Street Capital Management, Lp | 0.04% | 79,839 | $813,559 | $898,189 | +$84,630 | +10.40% | |
| Virtus Family Office Llc | 0.69% | 79,060 | $805,621 | $889,425 | +$83,804 | +10.40% | |
| Empowered Funds, Llc | 0.00% | 71,584 | $729,441 | $805,320 | +$75,879 | +10.40% | |
| Vanguard Fiduciary Trust Co | 0.00% | 67,040 | $683,138 | $754,200 | +$71,062 | +10.40% | |
| Federated Hermes, Inc. | 0.00% | 63,921 | $651,355 | $719,111 | +$67,756 | +10.40% | |
| Atom Investors Lp | 0.04% | 61,075 | $622,354 | $687,094 | +$64,740 | +10.40% | |
| Allianz Asset Management Gmbh | 0.00% | 59,859 | $609,963 | $673,414 | +$63,451 | +10.40% | |
| Quantinno Capital Management Lp | 0.00% | 56,153 | $572,199 | $631,721 | +$59,522 | +10.40% | |
| Summerhaven Investment Management, Llc | 0.30% | 47,835 | $487,439 | $538,144 | +$50,705 | +10.40% | |
| Schonfeld Strategic Advisors Llc | 0.00% | 42,552 | $433,603 | $478,710 | +$45,107 | +10.40% | |
| Engineers Gate Manager Lp | 0.01% | 39,580 | $403,320 | $445,275 | +$41,955 | +10.40% | |
| Commons Capital, Llc | 0.32% | 38,000 | $387,220 | $427,500 | +$40,280 | +10.40% | |
| Victory Capital Management Inc | 0.00% | 34,302 | $349,537 | $385,898 | +$36,361 | +10.40% | |
| Bank Of New York Mellon Corp | 0.00% | 34,291 | $349,425 | $385,774 | +$36,349 | +10.40% | |
| Invesco Ltd. | 0.00% | 32,776 | $333,987 | $368,730 | +$34,743 | +10.40% | |
| Pdt Partners, Llc | 0.02% | 30,723 | $313,067 | $345,634 | +$32,567 | +10.40% | |
| Alliancebernstein L.P. | 0.00% | 27,320 | $291,778 | $307,350 | +$15,572 | +5.34% | |
| Nuveen, Llc | 0.00% | 24,141 | $245,997 | $271,586 | +$25,589 | +10.40% | |
| Centiva Capital, Lp | 0.01% | 22,022 | $224,404 | $247,748 | +$23,344 | +10.40% | |
| Bnp Paribas Financial Markets | 0.00% | 21,212 | $216,150 | $238,635 | +$22,485 | +10.40% | |
| Rhumbline Advisers | 0.00% | 14,602 | $148,786 | $164,273 | +$15,487 | +10.41% | |
| Ubs Group Ag | 0.00% | 13,833 | $140,958 | $155,621 | +$14,663 | +10.40% | |
| Verdad Advisers, Lp | 0.15% | 13,148 | $133,978 | $147,915 | +$13,937 | +10.40% | |
| Redhawk Wealth Advisors, Inc. | 0.01% | 10,682 | $108,850 | $120,173 | +$11,323 | +10.40% |
Frequently asked questions about MED
Who owns the most MED stock?
The largest holders of MED are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for MEDIFAST INC (MED).
Is MED widely held by superinvestors?
Many widely followed stocks like MED appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly MED is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.