MEDIFAST INC - MED

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q1 2026 · Compare: Q4 2025
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
BlackRock, Inc. History Added to 944,453 9,623 0.0% 0.0% 1 +29,660 3.24% Q1 2026 May 13, 2026
RENAISSANCE TECHNOLOGIES LLC History Reduced 773,710 7,884 0.01% 0.01% 2 -6,900 -0.88% Q1 2026 May 14, 2026
VANGUARD GROUP INC History No change 711,499 7,598 0.0% 0.0% 3 0 0.0% Q4 2025 Jan 29, 2026
CITADEL ADVISORS LLC History Added to 743,500 7,576 0.0% 0.0% 4 +179,600 31.85% Q1 2026 May 15, 2026
Steamboat Capital Partners, LLC History Added to 707,590 7,210 1.79% 0.81% 5 +431,176 155.99% Q1 2026 May 15, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History Reduced 631,539 6,435 0.0% 0.0% 6 -145,290 -18.7% Q1 2026 May 15, 2026
VANGUARD CAPITAL MANAGEMENT LLC History New 444,467 4,529 0.0% 7 +444,467 New Q1 2026 May 15, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Added to 435,400 4,436 0.0% 0.0% 8 +296,100 212.56% Q1 2026 May 15, 2026
GROUP ONE TRADING LLC History Added to 382,500 3,897 0.01% 0.0% 9 +214,200 127.27% Q1 2026 May 13, 2026
DIMENSIONAL FUND ADVISORS LP History Added to 361,762 3,686 0.0% 0.0% 10 +35,522 10.89% Q1 2026 May 07, 2026
TWO SIGMA INVESTMENTS, LP History Added to 338,158 3,445 0.0% 0.0% 11 +257,818 320.91% Q1 2026 May 15, 2026
MORGAN STANLEY History Reduced 325,312 3,314 0.0% 0.0% 12 -9,546 -2.85% Q1 2026 May 15, 2026
JANE STREET GROUP, LLC History Added to 265,507 2,705 0.0% 0.0% 13 +5,307 2.04% Q1 2026 May 12, 2026
GEODE CAPITAL MANAGEMENT, LLC History Added to 253,315 2,581 0.0% 0.0% 14 +5,866 2.37% Q1 2026 May 15, 2026
Man Group plc History Reduced 236,212 2,407 0.0% 0.0% 15 -288 -0.12% Q1 2026 May 15, 2026
D. E. Shaw & Co., Inc. History Added to 233,264 2,376 0.0% 0.0% 16 +14,146 6.46% Q1 2026 May 15, 2026
AMERICAN CENTURY COMPANIES INC History Added to 224,280 2,285 0.0% 0.0% 17 +6,458 2.96% Q1 2026 May 15, 2026
STATE STREET CORP History Added to 222,638 2,268 0.0% 0.0% 18 +938 0.42% Q1 2026 May 15, 2026
Peapod Lane Capital LLC History Added to 219,063 2,213 1.82% 0.92% 19 +117,496 115.68% Q1 2026 May 01, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC History New 202,829 2,066 0.0% 20 +202,829 New Q1 2026 May 08, 2026
Lido Advisors, LLC History Reduced 183,035 1,865 0.01% 0.01% 21 -147,668 -44.65% Q1 2026 May 13, 2026
Trexquant Investment LP History Added to 180,081 1,835 0.01% 0.01% 22 +53,122 41.84% Q1 2026 May 15, 2026
BRIDGEWAY CAPITAL MANAGEMENT, LLC History Added to 157,078 1,600 0.03% 0.03% 23 +39,139 33.19% Q1 2026 May 15, 2026
GOLDMAN SACHS GROUP INC History Reduced 153,171 1,560 0.0% 0.0% 24 -27,692 -15.31% Q1 2026 May 15, 2026
AQR CAPITAL MANAGEMENT LLC History Added to 145,575 1,483 0.0% 0.0% 25 +14,066 10.7% Q1 2026 May 15, 2026
IMC-Chicago, LLC History Added to 138,000 1,406 0.0% 0.0% 26 +26,000 23.21% Q1 2026 May 05, 2026
Quinn Opportunity Partners LLC History No change 127,112 1,295 0.07% 0.06% 27 0 0.0% Q1 2026 May 15, 2026
SIMPLEX TRADING, LLC History Added to 125,600 1,279 0.0% 0.0% 28 +24,100 23.74% Q1 2026 May 14, 2026
PEAK6 LLC History Reduced 115,500 1,176 0.0% 0.0% 29 -52,826 -31.38% Q1 2026 May 13, 2026
TWO SIGMA ADVISERS, LP History No change 102,900 1,098 0.0% 0.0% 30 0 0.0% Q4 2025 Feb 17, 2026
Walleye Trading LLC History New 95,800 976 0.0% 31 +95,800 New Q1 2026 May 08, 2026
NORTHERN TRUST CORP History Added to 92,595 943 0.0% 0.0% 32 +4,933 5.63% Q1 2026 May 14, 2026
Jump Financial, LLC History New 90,875 926 0.01% 33 +90,875 New Q1 2026 May 14, 2026
BANK OF AMERICA CORP /DE/ History Reduced 88,777 904 0.0% 0.0% 34 -8,696 -8.92% Q1 2026 May 15, 2026
JPMORGAN CHASE & CO History Added to 87,178 870 0.0% 0.0% 35 +32,798 60.31% Q1 2026 May 13, 2026
Divisadero Street Capital Management, LP History No change 79,839 813 0.03% 0.04% 36 0 0.0% Q1 2026 May 15, 2026
Virtus Family Office LLC History No change 79,060 805 0.69% 0.73% 37 0 0.0% Q1 2026 May 06, 2026
Empowered Funds, LLC History Added to 71,584 729 0.0% 0.01% 38 +26,811 59.88% Q1 2026 May 14, 2026
VANGUARD FIDUCIARY TRUST CO History New 67,040 683 0.0% 39 +67,040 New Q1 2026 May 08, 2026
FEDERATED HERMES, INC. History Reduced 63,921 651 0.0% 0.0% 40 -1,498 -2.29% Q1 2026 May 11, 2026
Atom Investors LP History Added to 61,075 622 0.04% 0.02% 41 +40,273 193.6% Q1 2026 May 15, 2026
Allianz Asset Management GmbH History Added to 59,859 609 0.0% 0.0% 42 +7,000 13.24% Q1 2026 May 11, 2026
Quantinno Capital Management LP History Added to 56,153 572 0.0% 0.0% 43 +7,346 15.05% Q1 2026 May 15, 2026
Walleye Capital LLC History New 55,801 568 0.0% 44 +55,801 New Q1 2026 May 13, 2026
SummerHaven Investment Management, LLC History Reduced 47,835 487 0.3% 0.35% 45 -10,221 -17.61% Q1 2026 Apr 24, 2026
Schonfeld Strategic Advisors LLC History New 42,552 433 0.0% 46 +42,552 New Q1 2026 May 15, 2026
Engineers Gate Manager LP History New 39,580 403 0.01% 47 +39,580 New Q1 2026 May 15, 2026
COMMONS CAPITAL, LLC History No change 38,000 387 0.32% 0.27% 48 0 0.0% Q1 2026 Apr 30, 2026
VICTORY CAPITAL MANAGEMENT INC History Reduced 34,302 349 0.0% 0.0% 49 -9,748 -22.13% Q1 2026 May 15, 2026
Bank of New York Mellon Corp History Reduced 34,291 349 0.0% 0.0% 50 -2,965 -7.96% Q1 2026 May 05, 2026
Invesco Ltd. History Reduced 32,776 333 0.0% 0.0% 51 -7,662 -18.95% Q1 2026 May 12, 2026
PDT Partners, LLC History New 30,723 313 0.02% 52 +30,723 New Q1 2026 May 15, 2026
ALLIANCEBERNSTEIN L.P. History No change 27,320 291 0.0% 0.0% 53 0 0.0% Q1 2026 May 15, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History Added to 26,705 273 0.0% 0.0% 54 +3,800 16.59% Q1 2026 May 15, 2026
Nuveen, LLC History Added to 24,141 245 0.0% 0.0% 55 +147 0.61% Q1 2026 Apr 30, 2026
Centiva Capital, LP History Added to 22,022 224 0.0% 0.0% 56 +8,137 58.6% Q1 2026 May 14, 2026
BNP PARIBAS FINANCIAL MARKETS History Added to 21,212 216 0.0% 0.0% 57 +18,315 632.21% Q1 2026 May 12, 2026
RHUMBLINE ADVISERS History Reduced 14,602 148 0.0% 0.0% 58 -207 -1.4% Q1 2026 May 12, 2026
UBS Group AG History Reduced 13,833 140 0.0% 0.0% 59 -23,774 -63.22% Q1 2026 May 05, 2026
Verdad Advisers, LP History New 13,148 133 0.15% 60 +13,148 New Q1 2026 May 15, 2026
Redhawk Wealth Advisors, Inc. History New 10,682 108 0.01% 61 +10,682 New Q1 2026 Apr 15, 2026
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC History New 10,298 106 0.0% 62 +10,298 New Q1 2026 Apr 08, 2026
MERCER GLOBAL ADVISORS INC /ADV History New 10,216 104 0.0% 63 +10,216 New Q1 2026 May 15, 2026
AIGEN INVESTMENT MANAGEMENT, LP History New 10,143 103 0.03% 64 +10,143 New Q1 2026 May 15, 2026
CWM, LLC History Added to 9,034 92 0.0% 0.0% 65 +1,943 27.4% Q1 2026 May 14, 2026
DEUTSCHE BANK AG\ History No change 8,625 87 0.0% 0.0% 66 0 0.0% Q1 2026 May 06, 2026
State of Wyoming History Added to 6,646 67 0.01% 0.01% 67 +1,097 19.77% Q1 2026 May 13, 2026
WELLS FARGO & COMPANY/MN History Reduced 6,040 61 0.0% 0.0% 68 -8,129 -57.37% Q1 2026 May 11, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History Added to 5,114 52 0.0% 0.0% 69 +136 2.73% Q1 2026 May 15, 2026
NEW YORK STATE COMMON RETIREMENT FUND History No change 4,591 46 0.0% 0.0% 70 0 0.0% Q1 2026 May 06, 2026
Intesa Sanpaolo Wealth Management History No change 4,430 45 0.01% 0.01% 71 0 0.0% Q1 2026 May 15, 2026
Vanguard Global Advisers, LLC History New 3,922 39 0.0% 72 +3,922 New Q1 2026 May 08, 2026
CITIGROUP INC History Reduced 3,599 36 0.0% 0.0% 73 -1,483 -29.18% Q1 2026 May 11, 2026
Russell Investments Group, Ltd. History Added to 3,031 30 0.0% 0.0% 74 +37 1.24% Q1 2026 May 08, 2026
Advisory Services Network, LLC History New 2,700 27 0.0% 75 +2,700 New Q1 2026 May 15, 2026
FMR LLC History Reduced 2,578 26 0.0% 0.0% 76 -35,823 -93.29% Q1 2026 May 15, 2026
AlphaQuest LLC History No change 2,068 22 0.0% 0.0% 77 0 0.0% Q4 2025 Feb 09, 2026
Police & Firemen's Retirement System of New Jersey History No change 2,164 22 0.0% 0.0% 78 0 0.0% Q1 2026 Apr 29, 2026
BARCLAYS PLC History Reduced 1,926 19 0.0% 0.0% 79 -14,843 -88.51% Q1 2026 May 14, 2026
OSAIC HOLDINGS, INC. History Reduced 1,370 13 0.0% 0.0% 80 -2 -0.15% Q1 2026 May 15, 2026
Tower Research Capital LLC (TRC) History Reduced 1,228 12 0.0% 0.0% 81 -5 -0.41% Q1 2026 May 15, 2026
CREATIVE FINANCIAL DESIGNS INC /ADV History No change 1,000 10 0.0% 0.0% 82 0 0.0% Q1 2026 Apr 13, 2026
Ameritas Investment Partners, Inc. History No change 1,067 10 0.0% 0.0% 83 0 0.0% Q1 2026 May 13, 2026
GAMMA Investing LLC History Added to 905 9 0.0% 0.0% 86 +346 61.9% Q1 2026 Apr 06, 2026
Legal & General Group Plc History No change 929 9 0.0% 0.0% 84 0 0.0% Q1 2026 May 08, 2026
SIGNATUREFD, LLC History No change 920 9 0.0% 0.0% 85 0 0.0% Q1 2026 Apr 07, 2026
Pinnacle Wealth Planning Services, Inc. History Reduced 804 8 0.0% 0.0% 87 -848 -51.33% Q1 2026 May 11, 2026
Arax Advisory Partners History Reduced 778 7 0.0% 0.0% 88 -10,819 -93.29% Q1 2026 May 13, 2026
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC History New 601 6 0.0% 91 +601 New Q1 2026 May 13, 2026
PNC FINANCIAL SERVICES GROUP, INC. History Reduced 594 6 0.0% 0.0% 89 -571 -49.01% Q1 2026 May 08, 2026
Essential Partners LLC History Reduced 634 6 0.0% 0.0% 90 -44 -6.49% Q1 2026 May 21, 2026
JONES FINANCIAL COMPANIES LLLP History Added to 612 5 0.0% 0.0% 92 +36 6.25% Q1 2026 May 15, 2026
Sterling Capital Management LLC History Reduced 357 3 0.0% 0.0% 93 -264 -42.51% Q1 2026 Apr 22, 2026
Versant Capital Management, Inc History Reduced 259 2 0.0% 0.0% 96 -1,130 -81.35% Q1 2026 Apr 06, 2026
Allworth Financial LP History Added to 226 2 0.0% 95 +184 438.1% Q1 2026 May 14, 2026
Advisors Asset Management, Inc. History Reduced 269 2 0.0% 0.0% 94 -34 -11.22% Q1 2026 May 15, 2026
ROYAL BANK OF CANADA History Reduced 126 1 0.0% 0.0% 97 -540 -81.08% Q1 2026 May 15, 2026
WealthCollab, LLC History Reduced 110 1 0.0% 0.0% 102 -229 -67.55% Q1 2026 May 13, 2026
IFP Advisors, Inc History Added to 140 1 0.0% 98 +111 382.76% Q1 2026 Apr 13, 2026
GILL CAPITAL PARTNERS, LLC History New 108 1 0.0% 104 +108 New Q1 2026 Apr 13, 2026
Optiver Holding B.V. History Reduced 112 1 0.0% 0.0% 100 -64 -36.36% Q1 2026 Jun 02, 2026
Covestor Ltd History Added to 83 1 0.0% 0.0% 101 +24 40.68% Q1 2026 May 05, 2026
EverSource Wealth Advisors, LLC History Reduced 159 1 0.0% 0.0% 99 -22 -12.15% Q1 2026 May 15, 2026
MJT & Associates Financial Advisory Group, Inc. History No change 100 1 0.0% 0.0% 103 0 0.0% Q1 2026 Apr 02, 2026
ACADIAN ASSET MANAGEMENT LLC History Closed out 0 0 0.0% -157,778 -100.0% Q1 2026 May 13, 2026
PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C. History Closed out 0 0 0.11% -111,244 -100.0% Q1 2026 May 07, 2026
Verition Fund Management LLC History Closed out 0 0 0.0% -24,842 -100.0% Q1 2026 May 15, 2026
SG Americas Securities, LLC History Closed out 0 0 0.0% -13,363 -100.0% Q1 2026 Apr 16, 2026
Brevan Howard Capital Management LP History Closed out 0 0 0.0% -13,125 -100.0% Q1 2026 May 15, 2026
Corient Private Wealth LLC History Closed out 0 0 0.0% -13,039 -100.0% Q1 2026 May 15, 2026
AMERIPRISE FINANCIAL INC History Closed out 0 0 0.0% -13,019 -100.0% Q1 2026 May 15, 2026
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO History Closed out 0 0 0.0% -4,959 -100.0% Q1 2026 May 14, 2026
Caption Management, LLC History Closed out 0 0 0.0% -4,396 -100.0% Q1 2026 May 15, 2026
BARROW HANLEY MEWHINNEY & STRAUSS LLC History Closed out 0 0 0.0% -969 -100.0% Q1 2026 May 13, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History Closed out 0 0 0.0% -661 -100.0% Q1 2026 May 15, 2026
Rockefeller Capital Management L.P. History Closed out 0 0 0.0% -376 -100.0% Q1 2026 May 14, 2026
AMALGAMATED BANK History Closed out 0 0 0.0% -339 -100.0% Q1 2026 May 08, 2026
MassMutual Private Wealth & Trust, FSB History Closed out 0 0 -83 -100.0% Q1 2026 Apr 13, 2026
MAI Capital Management History Added to 57 0 +47 470.0% Q1 2026 May 15, 2026
Farther Finance Advisors, LLC History New 43 0 +43 New Q1 2026 Apr 07, 2026
Private Wealth Management Group, LLC History Closed out 0 0 -41 -100.0% Q1 2026 Apr 23, 2026
Wealth Preservation Advisors, LLC History New 33 0 +33 New Q1 2026 May 15, 2026
Concord Wealth Partners History Closed out 0 0 -33 -100.0% Q1 2026 May 01, 2026
LOS ANGELES CAPITAL MANAGEMENT LLC History Reduced 73 0 0.0% -30 -29.13% Q1 2026 May 08, 2026
Caitong International Asset Management Co., Ltd History Reduced 32 0 -26 -44.83% Q1 2026 May 11, 2026
ROTHSCHILD INVESTMENT LLC History New 26 0 +26 New Q1 2026 May 07, 2026
NISA INVESTMENT ADVISORS, LLC History New 21 0 +21 New Q1 2026 Apr 30, 2026
SJS Investment Consulting Inc. History New 21 0 +21 New Q1 2026 Apr 23, 2026
True Wealth Design, LLC History Added to 47 0 +17 56.67% Q1 2026 Apr 13, 2026
NATIONAL BANK OF CANADA /FI/ History New 7 0 +7 New Q1 2026 May 14, 2026
Clearstead Advisors, LLC History Closed out 0 0 -2 -100.0% Q1 2026 May 06, 2026
Ritter Daniher Financial Advisory LLC / DE History New 1 0 +1 New Q1 2026 May 06, 2026
COMERICA BANK History No change 36 0 0 0.0% Q4 2025 Jan 29, 2026
Global Retirement Partners, LLC History No change 4 0 0 0.0% Q4 2025 Feb 06, 2026
Scarborough Advisors, LLC History No change 8 0 0 0.0% Q1 2026 May 07, 2026
SBI Securities Co., Ltd. History No change 75 0 0 0.0% Q1 2026 Apr 27, 2026
Glass Jacobson Investment Advisors llc History No change 7 0 0 0.0% Q1 2026 Apr 23, 2026
Caitlin John, LLC History No change 46 0 0 0.0% Q1 2026 May 13, 2026
Principia Wealth Advisory, LLC History No change 6 0 0 0.0% Q4 2025 Feb 10, 2026