MEDIFAST INC - MED

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q3 2026 · Compare: Q2 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 No change 778,610 8,261 0.01% 0.01% 1 0 0.0% Q2 2026 Aug 13, 2026
Steamboat Capital Partners, LLC History No change 706,699 7,498 1.6% 1.6% 2 0 0.0% Q2 2026 Aug 14, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History No change 582,500 6,180 0.0% 0.0% 3 0 0.0% Q2 2026 Aug 14, 2026
TWO SIGMA INVESTMENTS, LP History No change 481,381 5,107 0.0% 0.0% 4 0 0.0% Q2 2026 Aug 14, 2026
VANGUARD CAPITAL MANAGEMENT LLC History No change 446,614 4,738 0.0% 0.0% 5 0 0.0% Q2 2026 Aug 13, 2026
DIMENSIONAL FUND ADVISORS LP History Added to 373,439 4,302 0.0% 0.0% 6 +10,045 2.76% Q3 2026 Nov 04, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History No change 396,996 4,212 0.0% 0.0% 7 0 0.0% Q2 2026 Aug 14, 2026
BlackRock, Inc. History No change 369,503 3,920 0.0% 0.0% 8 0 0.0% Q2 2026 Aug 07, 2026
CITADEL ADVISORS LLC History No change 355,350 3,770 0.0% 0.0% 9 0 0.0% Q2 2026 Sep 02, 2026
AMERICAN CENTURY COMPANIES INC History No change 318,911 3,383 0.0% 0.0% 10 0 0.0% Q2 2026 Aug 12, 2026
MORGAN STANLEY History No change 292,508 3,103 0.0% 0.0% 11 0 0.0% Q2 2026 Aug 13, 2026
GROUP ONE TRADING LLC History No change 288,600 3,062 0.0% 0.0% 12 0 0.0% Q2 2026 Aug 13, 2026
GOLDMAN SACHS GROUP INC History No change 243,085 2,579 0.0% 0.0% 13 0 0.0% Q2 2026 Aug 14, 2026
MARSHALL WACE, LLP History No change 241,649 2,563 0.0% 0.0% 14 0 0.0% Q2 2026 Aug 13, 2026
AQR CAPITAL MANAGEMENT LLC History No change 236,434 2,508 0.0% 0.0% 15 0 0.0% Q2 2026 Aug 14, 2026
Peapod Lane Capital LLC History Reduced 207,502 2,390 1.78% 1.59% 16 -15,074 -6.77% Q3 2026 Oct 22, 2026
Lido Advisors, LLC History Reduced 201,248 2,318 0.01% 0.01% 17 -19,089 -8.66% Q3 2026 Nov 04, 2026
Trexquant Investment LP History No change 212,684 2,256 0.01% 0.01% 18 0 0.0% Q2 2026 Aug 14, 2026
IMC-Chicago, LLC History Reduced 195,500 2,252 0.0% 0.0% 19 -53,500 -21.49% Q3 2026 Nov 05, 2026
COMMONS CAPITAL, LLC History Added to 184,432 2,124 1.44% 1.11% 20 +34,516 23.02% Q3 2026 Nov 05, 2026
JANE STREET GROUP, LLC History No change 164,881 1,749 0.0% 0.0% 21 0 0.0% Q2 2026 Aug 14, 2026
Quinn Opportunity Partners LLC History No change 127,112 1,348 0.06% 0.06% 22 0 0.0% Q2 2026 Aug 14, 2026
GEODE CAPITAL MANAGEMENT, LLC History No change 121,071 1,285 0.0% 0.0% 23 0 0.0% Q2 2026 Aug 12, 2026
BRIDGEWAY CAPITAL MANAGEMENT, LLC History No change 117,078 1,242 0.02% 0.02% 24 0 0.0% Q2 2026 Aug 14, 2026
Walleye Trading LLC History No change 111,400 1,181 0.0% 0.0% 25 0 0.0% Q2 2026 Aug 03, 2026
RBF Capital, LLC History No change 109,000 1,156 0.05% 0.05% 26 0 0.0% Q2 2026 Aug 14, 2026
JPMORGAN CHASE & CO History No change 92,512 989 0.0% 0.0% 27 0 0.0% Q2 2026 Aug 12, 2026
D. E. Shaw & Co., Inc. History No change 92,345 979 0.0% 0.0% 28 0 0.0% Q2 2026 Aug 14, 2026
BANK OF AMERICA CORP /DE/ History No change 87,118 924 0.0% 0.0% 29 0 0.0% Q2 2026 Aug 14, 2026
Virtus Family Office LLC History No change 79,060 910 0.7% 0.66% 30 0 0.0% Q3 2026 Oct 30, 2026
Quantinno Capital Management LP History No change 82,997 880 0.0% 0.0% 31 0 0.0% Q2 2026 Aug 13, 2026
Divisadero Street Capital Management, LP History No change 79,839 847 0.02% 0.02% 32 0 0.0% Q2 2026 Aug 14, 2026
TUDOR INVESTMENT CORP ET AL History No change 76,031 806 0.0% 0.0% 33 0 0.0% Q2 2026 Aug 14, 2026
BNP PARIBAS FINANCIAL MARKETS History No change 73,878 783 0.0% 0.0% 34 0 0.0% Q2 2026 Aug 13, 2026
FEDERATED HERMES, INC. History No change 69,605 738 0.0% 0.0% 35 0 0.0% Q2 2026 Aug 12, 2026
Empowered Funds, LLC History No change 66,105 701 0.0% 0.0% 36 0 0.0% Q2 2026 Aug 14, 2026
VANGUARD FIDUCIARY TRUST CO History No change 63,337 672 0.0% 0.0% 37 0 0.0% Q2 2026 Aug 13, 2026
Atom Investors LP History No change 62,119 659 0.06% 0.06% 38 0 0.0% Q2 2026 Aug 14, 2026
STATE STREET CORP History No change 52,319 555 0.0% 0.0% 39 0 0.0% Q2 2026 Sep 22, 2026
GREAT LAKES ADVISORS, LLC History No change 51,611 547 0.0% 0.0% 40 0 0.0% Q2 2026 Aug 10, 2026
SIMPLEX TRADING, LLC History Reduced 46,700 537 0.0% 0.0% 41 -68,000 -59.29% Q3 2026 Nov 04, 2026
UBS Group AG History No change 50,223 532 0.0% 0.0% 42 0 0.0% Q2 2026 Aug 13, 2026
Engineers Gate Manager LP History No change 49,829 528 0.01% 0.01% 43 0 0.0% Q2 2026 Aug 14, 2026
MILLENNIUM MANAGEMENT LLC History No change 47,906 508 0.0% 0.0% 44 0 0.0% Q2 2026 Aug 14, 2026
Centiva Capital, LP History No change 44,432 471 0.0% 0.0% 45 0 0.0% Q2 2026 Aug 13, 2026
Susquehanna Portfolio Strategies, LLC History No change 41,777 443 0.01% 0.01% 46 0 0.0% Q2 2026 Aug 14, 2026
Jump Financial, LLC History No change 40,500 429 0.0% 0.0% 47 0 0.0% Q2 2026 Aug 13, 2026
GSA CAPITAL PARTNERS LLP History No change 38,443 408 0.03% 0.03% 48 0 0.0% Q2 2026 Aug 06, 2026
VICTORY CAPITAL MANAGEMENT INC History No change 35,655 378 0.0% 0.0% 49 0 0.0% Q2 2026 Aug 07, 2026
Jain Global LLC History No change 35,223 373 0.0% 0.0% 50 0 0.0% Q2 2026 Aug 14, 2026
PDT Partners, LLC History No change 32,756 347 0.02% 0.02% 51 0 0.0% Q2 2026 Aug 14, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History No change 32,378 344 0.0% 0.0% 52 0 0.0% Q2 2026 Aug 14, 2026
PEAK6 LLC History No change 31,400 333 0.0% 0.0% 53 0 0.0% Q2 2026 Aug 12, 2026
XTX Topco Ltd History No change 30,654 325 0.0% 0.0% 54 0 0.0% Q2 2026 Aug 14, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC History No change 29,108 308 0.0% 0.0% 55 0 0.0% Q2 2026 Aug 13, 2026
NORTHERN TRUST CORP History No change 27,756 294 0.0% 0.0% 56 0 0.0% Q2 2026 Aug 13, 2026
Point72 Asset Management, L.P. History No change 20,999 222 0.0% 0.0% 57 0 0.0% Q2 2026 Aug 14, 2026
Chico Wealth RIA History No change 21,000 222 0.12% 0.12% 58 0 0.0% Q2 2026 Aug 13, 2026
Walleye Capital LLC History No change 20,252 214 0.0% 0.0% 59 0 0.0% Q2 2026 Aug 03, 2026
Squarepoint Ops LLC History No change 20,140 213 0.0% 0.0% 60 0 0.0% Q2 2026 Aug 14, 2026
MERCER GLOBAL ADVISORS INC /ADV History No change 16,782 178 0.0% 0.0% 61 0 0.0% Q2 2026 Aug 19, 2026
Brevan Howard Capital Management LP History No change 15,025 159 0.0% 0.0% 62 0 0.0% Q2 2026 Aug 14, 2026
LITTLEJOHN FINANCIAL SERVICES, INC. History No change 13,834 146 0.11% 0.11% 63 0 0.0% Q2 2026 Jul 24, 2026
Invesco Ltd. History No change 13,315 141 0.0% 0.0% 64 0 0.0% Q2 2026 Aug 14, 2026
Schonfeld Strategic Advisors LLC History No change 12,367 131 0.0% 0.0% 65 0 0.0% Q2 2026 Aug 14, 2026
IEQ CAPITAL, LLC History No change 10,740 113 0.0% 0.0% 66 0 0.0% Q2 2026 Aug 11, 2026
Verdad Advisers, LP History No change 10,234 108 0.1% 0.1% 67 0 0.0% Q2 2026 Aug 14, 2026
Arax Advisory Partners History No change 7,470 79 0.0% 0.0% 68 0 0.0% Q2 2026 Aug 10, 2026
Ancora Advisors LLC History No change 7,060 74 0.0% 0.0% 69 0 0.0% Q2 2026 Aug 14, 2026
RHUMBLINE ADVISERS History No change 6,485 68 0.0% 0.0% 70 0 0.0% Q2 2026 Aug 11, 2026
Tower Research Capital LLC (TRC) History No change 6,120 64 0.0% 0.0% 71 0 0.0% Q2 2026 Aug 11, 2026
Russell Investments Group, Ltd. History No change 4,692 49 0.0% 0.0% 72 0 0.0% Q2 2026 Aug 06, 2026
Vanguard Global Advisers, LLC History No change 3,922 41 0.0% 0.0% 73 0 0.0% Q2 2026 Aug 13, 2026
FMR LLC History No change 2,730 28 0.0% 0.0% 74 0 0.0% Q2 2026 Aug 13, 2026
WELLS FARGO & COMPANY/MN History No change 2,217 23 0.0% 0.0% 75 0 0.0% Q2 2026 Aug 14, 2026
PNC FINANCIAL SERVICES GROUP, INC. History No change 1,386 14 0.0% 0.0% 76 0 0.0% Q2 2026 Aug 07, 2026
OSAIC HOLDINGS, INC. History No change 1,370 14 0.0% 0.0% 77 0 0.0% Q2 2026 Aug 14, 2026
CREATIVE FINANCIAL DESIGNS INC /ADV History No change 1,000 11 0.0% 0.0% 78 0 0.0% Q3 2026 Nov 04, 2026
GAMMA Investing LLC History Reduced 900 10 0.0% 0.0% 79 -142 -13.63% Q3 2026 Oct 08, 2026
BARCLAYS PLC History No change 825 8 0.0% 0.0% 80 0 0.0% Q2 2026 Aug 14, 2026
SIGNATUREFD, LLC History No change 697 8 0.0% 0.0% 81 0 0.0% Q3 2026 Oct 23, 2026
CITIGROUP INC History New 546 6 0.0% — 84 +546 New Q3 2026 Nov 04, 2026
JONES FINANCIAL COMPANIES LLLP History No change 576 6 0.0% 0.0% 82 0 0.0% 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% 83 0 0.0% Q2 2026 Aug 13, 2026
C M BIDWELL & ASSOCIATES LTD History No change 497 5 0.0% 0.0% 85 0 0.0% Q2 2026 Aug 11, 2026
Allworth Financial LP History No change 523 5 0.0% 0.0% 86 0 0.0% Q2 2026 Aug 11, 2026
Versant Capital Management, Inc History No change 310 3 0.0% 0.0% 87 0 0.0% Q3 2026 Oct 01, 2026
IFP Advisors, Inc History Reduced 180 2 0.0% 0.0% 88 -259 -59.0% Q3 2026 Oct 16, 2026
Advisors Asset Management, Inc. History No change 120 1 0.0% 0.0% 89 0 0.0% Q2 2026 Aug 13, 2026
MJT & Associates Financial Advisory Group, Inc. History No change 100 1 0.0% 0.0% 90 0 0.0% Q3 2026 Oct 07, 2026
SummerHaven Investment Management, LLC History Closed out 0 0 — 0.27% — -47,835 -100.0% Q3 2026 Oct 19, 2026
Marquette Asset Management, LLC History Closed out 0 0 — 0.04% — -30,038 -100.0% Q3 2026 Oct 09, 2026
State of Wyoming History Closed out 0 0 — 0.02% — -18,594 -100.0% Q3 2026 Oct 28, 2026
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC History Closed out 0 0 — 0.0% — -10,683 -100.0% Q3 2026 Oct 13, 2026
Pinnacle Wealth Planning Services, Inc. History Closed out 0 0 — 0.0% — -631 -100.0% Q3 2026 Oct 27, 2026
EverSource Wealth Advisors, LLC History Reduced 47 0 — 0.0% — -227 -82.85% Q3 2026 Nov 04, 2026
GILL CAPITAL PARTNERS, LLC History Closed out 0 0 — 0.0% — -108 -100.0% Q3 2026 Oct 13, 2026
True Wealth Design, LLC History Closed out 0 0 — — — -90 -100.0% Q3 2026 Oct 13, 2026
Essential Partners LLC History Closed out 0 0 — — — -81 -100.0% Q3 2026 Oct 14, 2026
Paladin Partners, LLC History Closed out 0 0 — — — -30 -100.0% Q3 2026 Oct 06, 2026
SJS Investment Consulting Inc. History Reduced 1 0 — — — -26 -96.3% Q3 2026 Oct 26, 2026
Farther Finance Advisors, LLC History Reduced 35 0 — — — -19 -35.19% Q3 2026 Oct 08, 2026
Fortitude Family Office, LLC History Closed out 0 0 — — — -18 -100.0% Q3 2026 Oct 14, 2026
Covestor Ltd History Closed out 0 0 — — — -15 -100.0% Q3 2026 Oct 30, 2026
Caitong International Asset Management Co., Ltd History Added to 17 0 — — — +5 41.67% Q3 2026 Oct 29, 2026
FIFTH THIRD BANCORP History Reduced 44 0 — — — -4 -8.33% Q3 2026 Nov 05, 2026
ROTHSCHILD INVESTMENT LLC History No change 62 0 — — — 0 0.0% Q2 2026 Aug 06, 2026
Clearstead Advisors, LLC History No change 2 0 — — — 0 0.0% Q2 2026 Aug 06, 2026
NISA INVESTMENT ADVISORS, LLC History No change 22 0 — — — 0 0.0% Q3 2026 Oct 20, 2026
ROYAL BANK OF CANADA History No change 53 0 — — — 0 0.0% Q2 2026 Aug 14, 2026
LOS ANGELES CAPITAL MANAGEMENT LLC History No change 73 0 — — — 0 0.0% Q2 2026 Aug 13, 2026
IFG Advisory, LLC History No change 14 0 — — — 0 0.0% Q2 2026 Aug 13, 2026
Global Retirement Partners, LLC History No change 68 0 — — — 0 0.0% Q2 2026 Aug 06, 2026
Concord Wealth Partners History No change 33 0 — — — 0 0.0% Q3 2026 Oct 30, 2026
SBI Securities Co., Ltd. History No change 80 0 — — — 0 0.0% Q3 2026 Oct 21, 2026
Glass Jacobson Investment Advisors llc History No change 7 0 — — — 0 0.0% Q3 2026 Oct 26, 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