MEDIFAST INC - MED

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q2 2026 · Compare: Q1 2026
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
RENAISSANCE TECHNOLOGIES LLC History Added to 778,610 8,261 0.01% 0.01% 1 +4,900 0.63% Q2 2026 Aug 13, 2026
Steamboat Capital Partners, LLC History Reduced 706,699 7,498 1.6% 1.79% 2 -891 -0.13% Q2 2026 Aug 14, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Added to 582,500 6,180 0.0% 0.0% 3 +147,100 33.79% Q2 2026 Aug 14, 2026
TWO SIGMA INVESTMENTS, LP History Added to 481,381 5,107 0.0% 0.0% 4 +143,223 42.35% Q2 2026 Aug 14, 2026
VANGUARD CAPITAL MANAGEMENT LLC History Added to 446,614 4,738 0.0% 0.0% 5 +2,147 0.48% Q2 2026 Aug 13, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History Reduced 396,996 4,212 0.0% 0.0% 6 -234,543 -37.14% Q2 2026 Aug 14, 2026
BlackRock, Inc. History Reduced 369,503 3,920 0.0% 0.0% 7 -574,950 -60.88% Q2 2026 Aug 07, 2026
DIMENSIONAL FUND ADVISORS LP History Added to 363,394 3,855 0.0% 0.0% 8 +1,632 0.45% Q2 2026 Aug 11, 2026
CITADEL ADVISORS LLC History Reduced 355,350 3,770 0.0% 0.0% 9 -388,150 -52.21% Q2 2026 Sep 02, 2026
AMERICAN CENTURY COMPANIES INC History Added to 318,911 3,383 0.0% 0.0% 10 +94,631 42.19% Q2 2026 Aug 12, 2026
MORGAN STANLEY History Reduced 292,508 3,103 0.0% 0.0% 11 -32,804 -10.08% Q2 2026 Aug 13, 2026
GROUP ONE TRADING LLC History Reduced 288,600 3,062 0.0% 0.01% 12 -93,900 -24.55% Q2 2026 Aug 13, 2026
IMC-Chicago, LLC History Added to 249,000 2,641 0.0% 0.0% 13 +111,000 80.43% Q2 2026 Aug 06, 2026
GOLDMAN SACHS GROUP INC History Added to 243,085 2,579 0.0% 0.0% 14 +89,914 58.7% Q2 2026 Aug 14, 2026
MARSHALL WACE, LLP History New 241,649 2,563 0.0% 15 +241,649 New Q2 2026 Aug 13, 2026
AQR CAPITAL MANAGEMENT LLC History Added to 236,434 2,508 0.0% 0.0% 16 +90,859 62.41% Q2 2026 Aug 14, 2026
Peapod Lane Capital LLC History Added to 222,576 2,361 1.59% 1.82% 17 +3,513 1.6% Q2 2026 Jul 27, 2026
Lido Advisors, LLC History Added to 220,337 2,337 0.01% 0.01% 18 +37,302 20.38% Q2 2026 Aug 07, 2026
Trexquant Investment LP History Added to 212,684 2,256 0.01% 0.01% 19 +32,603 18.1% Q2 2026 Aug 14, 2026
JANE STREET GROUP, LLC History Reduced 164,881 1,749 0.0% 0.0% 20 -100,626 -37.9% Q2 2026 Aug 14, 2026
COMMONS CAPITAL, LLC History Added to 149,916 1,590 1.11% 0.32% 21 +111,916 294.52% Q2 2026 Jul 30, 2026
Quinn Opportunity Partners LLC History No change 127,112 1,348 0.06% 0.07% 22 0 0.0% Q2 2026 Aug 14, 2026
GEODE CAPITAL MANAGEMENT, LLC History Reduced 121,071 1,285 0.0% 0.0% 23 -132,244 -52.21% Q2 2026 Aug 12, 2026
BRIDGEWAY CAPITAL MANAGEMENT, LLC History Reduced 117,078 1,242 0.02% 0.03% 24 -40,000 -25.47% Q2 2026 Aug 14, 2026
SIMPLEX TRADING, LLC History Reduced 114,700 1,216 0.0% 0.0% 25 -10,900 -8.68% Q2 2026 Aug 12, 2026
Walleye Trading LLC History Added to 111,400 1,181 0.0% 0.0% 26 +15,600 16.28% Q2 2026 Aug 03, 2026
RBF Capital, LLC History New 109,000 1,156 0.05% 27 +109,000 New Q2 2026 Aug 14, 2026
JPMORGAN CHASE & CO History Added to 92,512 989 0.0% 0.0% 28 +5,334 6.12% Q2 2026 Aug 12, 2026
D. E. Shaw & Co., Inc. History Reduced 92,345 979 0.0% 0.0% 29 -140,919 -60.41% Q2 2026 Aug 14, 2026
BANK OF AMERICA CORP /DE/ History Reduced 87,118 924 0.0% 0.0% 30 -1,659 -1.87% Q2 2026 Aug 14, 2026
Quantinno Capital Management LP History Added to 82,997 880 0.0% 0.0% 31 +26,844 47.81% Q2 2026 Aug 13, 2026
Divisadero Street Capital Management, LP History No change 79,839 847 0.02% 0.03% 32 0 0.0% Q2 2026 Aug 14, 2026
Virtus Family Office LLC History No change 79,060 838 0.66% 0.69% 33 0 0.0% Q2 2026 Aug 03, 2026
TUDOR INVESTMENT CORP ET AL History New 76,031 806 0.0% 34 +76,031 New Q2 2026 Aug 14, 2026
BNP PARIBAS FINANCIAL MARKETS History Added to 73,878 783 0.0% 0.0% 35 +52,666 248.28% Q2 2026 Aug 13, 2026
FEDERATED HERMES, INC. History Added to 69,605 738 0.0% 0.0% 36 +5,684 8.89% Q2 2026 Aug 12, 2026
Empowered Funds, LLC History Reduced 66,105 701 0.0% 0.0% 37 -5,479 -7.65% Q2 2026 Aug 14, 2026
VANGUARD FIDUCIARY TRUST CO History Reduced 63,337 672 0.0% 0.0% 38 -3,703 -5.52% Q2 2026 Aug 13, 2026
Atom Investors LP History Added to 62,119 659 0.06% 0.04% 39 +1,044 1.71% Q2 2026 Aug 14, 2026
STATE STREET CORP History Reduced 52,319 555 0.0% 0.0% 40 -170,319 -76.5% Q2 2026 Aug 07, 2026
GREAT LAKES ADVISORS, LLC History New 51,611 547 0.0% 41 +51,611 New Q2 2026 Aug 10, 2026
UBS Group AG History Added to 50,223 532 0.0% 0.0% 42 +36,390 263.07% Q2 2026 Aug 13, 2026
Engineers Gate Manager LP History Added to 49,829 528 0.01% 0.01% 43 +10,249 25.89% Q2 2026 Aug 14, 2026
MILLENNIUM MANAGEMENT LLC History New 47,906 508 0.0% 44 +47,906 New Q2 2026 Aug 14, 2026
SummerHaven Investment Management, LLC History No change 47,835 507 0.27% 0.3% 45 0 0.0% Q2 2026 Jul 21, 2026
Centiva Capital, LP History Added to 44,432 471 0.0% 0.0% 46 +22,410 101.76% Q2 2026 Aug 13, 2026
Susquehanna Portfolio Strategies, LLC History New 41,777 443 0.01% 47 +41,777 New Q2 2026 Aug 14, 2026
Jump Financial, LLC History Reduced 40,500 429 0.0% 0.01% 48 -50,375 -55.43% Q2 2026 Aug 13, 2026
GSA CAPITAL PARTNERS LLP History New 38,443 408 0.03% 49 +38,443 New Q2 2026 Aug 06, 2026
VICTORY CAPITAL MANAGEMENT INC History Added to 35,655 378 0.0% 0.0% 50 +1,353 3.94% Q2 2026 Aug 07, 2026
Jain Global LLC History New 35,223 373 0.0% 51 +35,223 New Q2 2026 Aug 14, 2026
PDT Partners, LLC History Added to 32,756 347 0.02% 0.02% 52 +2,033 6.62% Q2 2026 Aug 14, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History Added to 32,378 344 0.0% 0.0% 53 +5,673 21.24% Q2 2026 Aug 14, 2026
PEAK6 LLC History Reduced 31,400 333 0.0% 0.0% 54 -84,100 -72.81% Q2 2026 Aug 12, 2026
XTX Topco Ltd History New 30,654 325 0.0% 55 +30,654 New Q2 2026 Aug 14, 2026
Marquette Asset Management, LLC History New 30,038 318 0.04% 56 +30,038 New Q2 2026 Jul 09, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC History Reduced 29,108 308 0.0% 0.0% 57 -173,721 -85.65% Q2 2026 Aug 13, 2026
NORTHERN TRUST CORP History Reduced 27,756 294 0.0% 0.0% 58 -64,839 -70.02% Q2 2026 Aug 13, 2026
Chico Wealth RIA History New 21,000 222 0.12% 60 +21,000 New Q2 2026 Aug 13, 2026
Point72 Asset Management, L.P. History New 20,999 222 0.0% 59 +20,999 New Q2 2026 Aug 14, 2026
Walleye Capital LLC History Reduced 20,252 214 0.0% 0.0% 61 -35,549 -63.71% Q2 2026 Aug 03, 2026
Squarepoint Ops LLC History New 20,140 213 0.0% 62 +20,140 New Q2 2026 Aug 14, 2026
State of Wyoming History Added to 18,594 197 0.02% 0.01% 63 +11,948 179.78% Q2 2026 Aug 06, 2026
MERCER GLOBAL ADVISORS INC /ADV History Added to 16,782 178 0.0% 0.0% 64 +6,566 64.27% Q2 2026 Aug 19, 2026
Brevan Howard Capital Management LP History New 15,025 159 0.0% 65 +15,025 New Q2 2026 Aug 14, 2026
LITTLEJOHN FINANCIAL SERVICES, INC. History New 13,834 146 0.11% 66 +13,834 New Q2 2026 Jul 24, 2026
Invesco Ltd. History Reduced 13,315 141 0.0% 0.0% 67 -19,461 -59.38% Q2 2026 Aug 14, 2026
Schonfeld Strategic Advisors LLC History Reduced 12,367 131 0.0% 0.0% 68 -30,185 -70.94% Q2 2026 Aug 14, 2026
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC History Added to 10,683 114 0.0% 0.0% 69 +385 3.74% Q2 2026 Jul 15, 2026
IEQ CAPITAL, LLC History New 10,740 113 0.0% 70 +10,740 New Q2 2026 Aug 11, 2026
Verdad Advisers, LP History Reduced 10,234 108 0.1% 0.15% 71 -2,914 -22.16% Q2 2026 Aug 14, 2026
CWM, LLC History No change 9,034 92 0.0% 0.0% 72 0 0.0% Q1 2026 May 14, 2026
Arax Advisory Partners History Added to 7,470 79 0.0% 0.0% 73 +6,692 860.15% Q2 2026 Aug 10, 2026
Ancora Advisors LLC History New 7,060 74 0.0% 74 +7,060 New Q2 2026 Aug 14, 2026
RHUMBLINE ADVISERS History Reduced 6,485 68 0.0% 0.0% 75 -8,117 -55.59% Q2 2026 Aug 11, 2026
Tower Research Capital LLC (TRC) History Added to 6,120 64 0.0% 0.0% 76 +4,892 398.37% Q2 2026 Aug 11, 2026
Russell Investments Group, Ltd. History Added to 4,692 49 0.0% 0.0% 77 +1,661 54.8% Q2 2026 Aug 06, 2026
Vanguard Global Advisers, LLC History No change 3,922 41 0.0% 0.0% 78 0 0.0% Q2 2026 Aug 13, 2026
FMR LLC History Added to 2,730 28 0.0% 0.0% 79 +152 5.9% Q2 2026 Aug 13, 2026
WELLS FARGO & COMPANY/MN History Reduced 2,217 23 0.0% 0.0% 80 -3,823 -63.29% Q2 2026 Aug 14, 2026
PNC FINANCIAL SERVICES GROUP, INC. History Added to 1,386 14 0.0% 0.0% 81 +792 133.33% Q2 2026 Aug 07, 2026
OSAIC HOLDINGS, INC. History No change 1,370 14 0.0% 0.0% 82 0 0.0% Q2 2026 Aug 14, 2026
GAMMA Investing LLC History Added to 1,042 11 0.0% 0.0% 83 +137 15.14% Q2 2026 Jul 07, 2026
CREATIVE FINANCIAL DESIGNS INC /ADV History No change 1,000 10 0.0% 0.0% 84 0 0.0% Q2 2026 Jul 28, 2026
BARCLAYS PLC History Reduced 825 8 0.0% 0.0% 85 -1,101 -57.17% Q2 2026 Aug 14, 2026
SIGNATUREFD, LLC History Reduced 697 7 0.0% 0.0% 86 -223 -24.24% Q2 2026 Jul 23, 2026
Pinnacle Wealth Planning Services, Inc. History Reduced 631 6 0.0% 0.0% 89 -173 -21.52% Q2 2026 Aug 07, 2026
JONES FINANCIAL COMPANIES LLLP History Reduced 576 6 0.0% 0.0% 87 -36 -5.88% Q2 2026 Aug 14, 2026
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC History No change 601 6 0.0% 0.0% 88 0 0.0% Q2 2026 Aug 13, 2026
C M BIDWELL & ASSOCIATES LTD History New 497 5 0.0% 91 +497 New Q2 2026 Aug 11, 2026
Allworth Financial LP History Added to 523 5 0.0% 0.0% 90 +297 131.42% Q2 2026 Aug 11, 2026
IFP Advisors, Inc History Added to 439 4 0.0% 0.0% 92 +299 213.57% Q2 2026 Jul 20, 2026
Versant Capital Management, Inc History Added to 310 3 0.0% 0.0% 93 +51 19.69% Q2 2026 Jul 02, 2026
EverSource Wealth Advisors, LLC History Added to 274 2 0.0% 0.0% 94 +115 72.33% Q2 2026 Jul 24, 2026
Advisors Asset Management, Inc. History Reduced 120 1 0.0% 0.0% 96 -149 -55.39% Q2 2026 Aug 13, 2026
GILL CAPITAL PARTNERS, LLC History No change 108 1 0.0% 0.0% 95 0 0.0% Q2 2026 Aug 20, 2026
MJT & Associates Financial Advisory Group, Inc. History No change 100 1 0.0% 0.0% 97 0 0.0% Q2 2026 Jul 06, 2026
Man Group plc History Closed out 0 0 0.0% -236,212 -100.0% Q2 2026 Aug 14, 2026
Allianz Asset Management GmbH History Closed out 0 0 0.0% -59,859 -100.0% Q2 2026 Sep 02, 2026
Bank of New York Mellon Corp History Closed out 0 0 0.0% -34,291 -100.0% Q2 2026 Aug 06, 2026
ALLIANCEBERNSTEIN L.P. History Closed out 0 0 0.0% -27,320 -100.0% Q2 2026 Aug 14, 2026
Nuveen, LLC History Closed out 0 0 0.0% -24,141 -100.0% Q2 2026 Aug 11, 2026
Redhawk Wealth Advisors, Inc. History Closed out 0 0 0.01% -10,682 -100.0% Q2 2026 Jul 09, 2026
AIGEN INVESTMENT MANAGEMENT, LP History Closed out 0 0 0.03% -10,143 -100.0% Q2 2026 Aug 14, 2026
DEUTSCHE BANK AG\ History Closed out 0 0 0.0% -8,625 -100.0% Q2 2026 Aug 07, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History Closed out 0 0 0.0% -5,114 -100.0% Q2 2026 Aug 14, 2026
NEW YORK STATE COMMON RETIREMENT FUND History Closed out 0 0 0.0% -4,591 -100.0% Q2 2026 Jul 29, 2026
Intesa Sanpaolo Wealth Management History Closed out 0 0 0.01% -4,430 -100.0% Q2 2026 Jul 23, 2026
CITIGROUP INC History Closed out 0 0 0.0% -3,599 -100.0% Q2 2026 Aug 03, 2026
Advisory Services Network, LLC History Closed out 0 0 0.0% -2,700 -100.0% Q2 2026 Aug 12, 2026
Police & Firemen's Retirement System of New Jersey History Closed out 0 0 0.0% -2,164 -100.0% Q2 2026 Jul 23, 2026
Ameritas Investment Partners, Inc. History Closed out 0 0 0.0% -1,067 -100.0% Q2 2026 Aug 13, 2026
Legal & General Group Plc History Closed out 0 0 0.0% -929 -100.0% Q2 2026 Aug 14, 2026
Essential Partners LLC History Reduced 81 0 0.0% -553 -87.22% Q2 2026 Aug 10, 2026
Sterling Capital Management LLC History Closed out 0 0 0.0% -357 -100.0% Q2 2026 Jul 28, 2026
Optiver Holding B.V. History Closed out 0 0 0.0% -112 -100.0% Q2 2026 Aug 12, 2026
WealthCollab, LLC History Closed out 0 0 0.0% -110 -100.0% Q2 2026 Aug 10, 2026
ROYAL BANK OF CANADA History Reduced 53 0 0.0% -73 -57.94% Q2 2026 Aug 14, 2026
Covestor Ltd History Reduced 15 0 0.0% -68 -81.93% Q2 2026 Aug 07, 2026
Global Retirement Partners, LLC History New 68 0 +68 New Q2 2026 Aug 06, 2026
MAI Capital Management History Closed out 0 0 -57 -100.0% Q2 2026 Aug 14, 2026
FIFTH THIRD BANCORP History New 48 0 +48 New Q2 2026 Aug 05, 2026
True Wealth Design, LLC History Added to 90 0 +43 91.49% Q2 2026 Jul 16, 2026
ROTHSCHILD INVESTMENT LLC History Added to 62 0 +36 138.46% Q2 2026 Aug 06, 2026
Concord Wealth Partners History New 33 0 +33 New Q2 2026 Jul 27, 2026
Wealth Preservation Advisors, LLC History Closed out 0 0 -33 -100.0% Q2 2026 Aug 14, 2026
Caitong International Asset Management Co., Ltd History Reduced 12 0 -20 -62.5% Q2 2026 Aug 04, 2026
Fortitude Family Office, LLC History New 18 0 +18 New Q2 2026 Jul 20, 2026
IFG Advisory, LLC History New 14 0 +14 New Q2 2026 Aug 13, 2026
Farther Finance Advisors, LLC History Added to 54 0 +11 25.58% Q2 2026 Jul 17, 2026
Scarborough Advisors, LLC History Closed out 0 0 -8 -100.0% Q2 2026 Jul 21, 2026
NATIONAL BANK OF CANADA /FI/ History Closed out 0 0 -7 -100.0% Q2 2026 Aug 10, 2026
SJS Investment Consulting Inc. History Added to 27 0 +6 28.57% Q2 2026 Jul 22, 2026
SBI Securities Co., Ltd. History Added to 80 0 +5 6.67% Q2 2026 Jul 22, 2026
Clearstead Advisors, LLC History New 2 0 +2 New Q2 2026 Aug 06, 2026
NISA INVESTMENT ADVISORS, LLC History Added to 22 0 +1 4.76% Q2 2026 Aug 10, 2026
Ritter Daniher Financial Advisory LLC / DE History Closed out 0 0 -1 -100.0% Q2 2026 Jul 14, 2026
LOS ANGELES CAPITAL MANAGEMENT LLC History No change 73 0 0 0.0% Q2 2026 Aug 13, 2026
Glass Jacobson Investment Advisors llc History No change 7 0 0 0.0% Q2 2026 Jul 30, 2026
Caitlin John, LLC History No change 46 0 0 0.0% Q2 2026 Aug 17, 2026
Principia Wealth Advisory, LLC History No change 6 0 0 0.0% Q2 2026 Aug 26, 2026
Paladin Partners, LLC History No change 30 0 0 0.0% Q2 2026 Aug 07, 2026