MEDIFAST INC MED
COM · Common Stock · CUSIP 58470H101 · ISIN US58470H1014
American multi-level marketing company
- SectorConsumer staples
- IndustryMiscellaneous Food Preparations & Kindred Products
- HeadquartersBaltimore, MD
- Founded1980
- Websitemedifast1.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($573.3k this quarter). Holder counts are more reliable. Shares outstanding: 11.2m as of 2026-07-27, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $10.61. Options: 8 managers hold calls ($15.9m notional), 5 hold puts ($2.0m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 265 |
| Q4 2022 | 281 |
| Q1 2023 | 270 |
| Q2 2023 | 238 |
| Q3 2023 | 226 |
| Q4 2023 | 218 |
| Q1 2024 | 189 |
| Q2 2024 | 161 |
| Q3 2024 | 143 |
| Q4 2024 | 132 |
| Q1 2025 | 127 |
| Q2 2025 | 123 |
| Q3 2025 | 124 |
| Q4 2025 | 110 |
| Q1 2026 | 113 |
| Q2 2026 | 114 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 49 | 93 |
| Q4 2024 | 49 | 76 |
| Q1 2025 | 57 | 64 |
| Q2 2025 | 66 | 57 |
| Q3 2025 | 63 | 42 |
| Q4 2025 | 36 | 74 |
| Q1 2026 | 55 | 53 |
| Q2 2026 | 68 | 52 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $35.2m | $315.3k | 0.01 |
| Q4 2025 | $16.3m | $1.5m | 0.09 |
| Q1 2026 | $22.7m | $743.9k | 0.03 |
| Q2 2026 | $15.9m | $2.0m | 0.13 |
Biggest buyers
| MARSHALL WACE, LLP | New | +241.6k |
| TWO SIGMA INVESTMENTS, LP | Added | +143.2k |
| COMMONS CAPITAL, LLC | Added | +111.9k |
| RBF Capital, LLC | New | +109.0k |
| AMERICAN CENTURY COMPANIES INC | Added | +94.6k |
| AQR CAPITAL MANAGEMENT LLC | Added | +90.9k |
| GOLDMAN SACHS GROUP INC | Added | +89.9k |
| TUDOR INVESTMENT CORP ET AL | New | +76.0k |
| CITADEL ADVISORS LLC | New | +56.4k |
| BNP PARIBAS FINANCIAL MARKETS | Added | +52.7k |
Biggest sellers
| BlackRock, Inc. | Reduced | -575.0k |
| Man Group plc | Sold out | -236.2k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Reduced | -234.5k |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | -173.7k |
| STATE STREET CORP | Reduced | -170.3k |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | -132.2k |
| D. E. Shaw & Co., Inc. | Reduced | -68.2k |
| NORTHERN TRUST CORP | Reduced | -64.8k |
| Allianz Asset Management GmbH | Sold out | -59.9k |
| Jump Financial, LLC | Reduced | -50.4k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $5.8m542.7k shares |
| GROUP ONE TRADING LLC | Reduced | $3.1m288.6k shares |
| CITADEL ADVISORS LLC | Reduced | $2.5m233.4k shares |
| IMC-Chicago, LLC | Added | $1.8m172.7k shares |
| Walleye Trading LLC | Added | $1.1m108.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $1.1m105.4k shares |
| PEAK6 LLC | Reduced | $333.2k31.4k shares |
| Walleye Capital LLC | Reduced | $182.5k17.2k shares |
Biggest puts
| IMC-Chicago, LLC | Added | $809.5k76.3k shares |
| CITADEL ADVISORS LLC | Added | $696.0k65.6k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $422.3k39.8k shares |
| SIMPLEX TRADING, LLC | New | $98.7k9.3k shares |
| Walleye Capital LLC | New | $17.0k1.6k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| Steamboat Capital Partners, LLC 13D · may seek influence +1.1 pts · filed 2026-08-21 | 7.1% |
| RENAISSANCE TECHNOLOGIES LLC 13G · institution -1.1 pts · filed 2026-05-14 | 7.0% |
| SUSQUEHANNA SECURITIES, LLC 13G · institution +3.9 pts · filed 2026-08-14 | 5.3% |
Fell to 5% or below in the last year: Citadel Securities GP LLC (2.6%, 2026-08-14), CHARLES SCHWAB INVESTMENT MANAGEMENT INC (3.6%, 2026-08-12), BlackRock, Inc. (2.9%, 2026-07-29), VANGUARD GROUP INC (0.0%, 2026-03-27)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 1 | $5.0k | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 1 | $178.7k | 0 | — | — |
| Q2 2026 | 1 | $63.0k | 0 | — | — |
| Q3 2026 | 1 | $1.4m | 1 | $226.3k | $226.3k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-09-29 | Chard Daniel R Director · The Dan and Allyson Family Irrevocable Trust | Sold plan | $112.0k9.5k shares |
| 2026-09-28 | Chard Daniel R Director · The Dan and Allyson Family Irrevocable Trust | Sold plan | $114.3k9.5k shares |
| 2026-08-26 | Kiai Parsa Director · Notes | Bought | $529.0k43.1k shares |
| 2026-08-24 | Kiai Parsa Director · Notes | Bought | $51.9k4.3k shares |
| 2026-08-20 | Kiai Parsa Director · Notes | Bought | $500.5k43.1k shares |
| 2026-08-19 | Kiai Parsa Director · Notes | Bought | $342.1k29.3k shares |
| 2026-05-11 | SCHLACKMAN SCOTT Director | Bought | $31.3k2.5k shares |
| 2026-05-08 | SCHLACKMAN SCOTT Director | Bought | $31.6k2.5k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 778.6k $8.3m | Added +4.9k |
| Steamboat Capital Partners, LLC 1.60% of their portfolio | 706.7k $7.5m | Reduced -891 |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 481.4k $5.1m | Added +143.2k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 446.6k $4.7m | Added +2.1k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 397.0k $4.2m | Reduced -234.5k |
| BlackRock, Inc. 0.00% of their portfolio | 369.5k $3.9m | Reduced -575.0k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 363.4k $3.9m | Added +1.6k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 318.9k $3.4m | Added +94.6k |
| MORGAN STANLEY 0.00% of their portfolio | 292.5k $3.1m | Reduced -32.8k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 243.1k $2.6m | Added +89.9k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 241.6k $2.6m | New |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 236.4k $2.5m | Added +90.9k |
| Peapod Lane Capital LLC 1.59% of their portfolio | 222.6k $2.4m | Added +3.5k |
| Lido Advisors, LLC 0.01% of their portfolio | 220.3k $2.3m | Added +37.3k |
| Trexquant Investment LP 0.01% of their portfolio | 212.7k $2.3m | Added +32.6k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 164.9k $1.7m | Added +38.5k |
| COMMONS CAPITAL, LLC 1.11% of their portfolio | 149.9k $1.6m | Added +111.9k |
| Quinn Opportunity Partners LLC 0.06% of their portfolio | 127.1k $1.3m | Unchanged |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 121.1k $1.3m | Reduced -132.2k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 117.1k $1.2m | Reduced -40.0k |
| RBF Capital, LLC 0.05% of their portfolio | 109.0k $1.2m | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 92.5k $989.9k | Added +5.3k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 92.3k $979.8k | Reduced -68.2k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 87.1k $924.3k | Reduced -1.7k |
| Quantinno Capital Management LP 0.00% of their portfolio | 83.0k $880.6k | Added +26.8k |
| Divisadero Street Capital Management, LP 0.02% of their portfolio | 79.8k $847.1k | Unchanged |
| Virtus Family Office LLC 0.66% of their portfolio | 79.1k $838.8k | Unchanged |
| TUDOR INVESTMENT CORP ET AL 0.00% of their portfolio | 76.0k $806.7k | New |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 73.9k $783.8k | Added +52.7k |
| FEDERATED HERMES, INC. 0.00% of their portfolio | 69.6k $738.5k | Added +5.7k |
| Empowered Funds, LLC 0.00% of their portfolio | 66.1k $701.4k | Reduced -5.5k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 63.3k $672.0k | Reduced -3.7k |
| Atom Investors LP 0.06% of their portfolio | 62.1k $659.1k | Added +1.0k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 56.4k $597.9k | New |
| STATE STREET CORP 0.00% of their portfolio | 52.3k $555.1k | Reduced -170.3k |
| GREAT LAKES ADVISORS, LLC 0.00% of their portfolio | 51.6k $547.6k | New |
| UBS Group AG 0.00% of their portfolio | 50.2k $532.9k | Added +36.4k |
| Engineers Gate Manager LP 0.01% of their portfolio | 49.8k $528.7k | Added +10.2k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 47.9k $508.3k | New |
| SummerHaven Investment Management, LLC 0.27% of their portfolio | 47.8k $507.5k | Unchanged |
| Centiva Capital, LP 0.02% of their portfolio | 44.4k $471.4k | Added +22.4k |
| Susquehanna Portfolio Strategies, LLC 0.01% of their portfolio | 41.8k $443.3k | New |
| Jump Financial, LLC 0.00% of their portfolio | 40.5k $429.7k | Reduced -50.4k |
| GSA CAPITAL PARTNERS LLP 0.03% of their portfolio | 38.4k $408.0k | New |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 35.7k $378.3k | Added +1.4k |
| Jain Global LLC 0.00% of their portfolio | 35.2k $373.7k | New |
| PDT Partners, LLC 0.02% of their portfolio | 32.8k $347.5k | Added +2.0k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 32.4k $344.0k | Added +5.7k |
| XTX Topco Ltd 0.00% of their portfolio | 30.7k $325.2k | New |
| Marquette Asset Management, LLC 0.04% of their portfolio | 30.0k $318.7k | New |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 29.1k $308.8k | Reduced -173.7k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 27.8k $294.5k | Reduced -64.8k |
| Chico Wealth RIA 0.12% of their portfolio | 21.0k $222.8k | New |
| Point72 Asset Management, L.P. 0.00% of their portfolio | 21.0k $222.8k | New |
| Squarepoint Ops LLC 0.00% of their portfolio | 20.1k $213.7k | New |
| State of Wyoming 0.02% of their portfolio | 18.6k $197.3k | Added +11.9k |
| MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio | 16.8k $178.1k | Added +6.6k |
| Brevan Howard Capital Management LP 0.00% of their portfolio | 15.0k $159.4k | New |
| LITTLEJOHN FINANCIAL SERVICES, INC. 0.11% of their portfolio | 13.8k $146.8k | New |
| Invesco Ltd. 0.00% of their portfolio | 13.3k $141.3k | Reduced -19.5k |
| Schonfeld Strategic Advisors LLC 0.00% of their portfolio | 12.4k $131.2k | Reduced -30.2k |
| IEQ CAPITAL, LLC 0.00% of their portfolio | 10.7k $114.0k | New |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 0.00% of their portfolio | 10.7k $114.5k | Added +385 |
| Verdad Advisers, LP 0.10% of their portfolio | 10.2k $108.6k | Reduced -2.9k |
| Arax Advisory Partners 0.00% of their portfolio | 7.5k $79.3k | Added +6.7k |
| Ancora Advisors LLC 0.00% of their portfolio | 7.1k $74.9k | New |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 6.5k $68.8k | Reduced -8.1k |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 6.1k $64.9k | Added +4.9k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 4.7k $49.8k | Added +1.7k |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 3.9k $41.6k | Unchanged |
| Walleye Trading LLC 0.00% of their portfolio | 3.4k $36.1k | Unchanged |
| FMR LLC 0.00% of their portfolio | 2.7k $29.0k | Added +152 |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 2.2k $23.5k | Reduced -3.8k |
| Walleye Capital LLC 0.00% of their portfolio | 1.5k $15.4k | Added +1.5k |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 1.4k $14.7k | Added +792 |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 1.4k $14.5k | Unchanged |
| Integrated Wealth Concepts LLC 0.00% of their portfolio | 1.1k $11.3k | New |
| GAMMA Investing LLC 0.00% of their portfolio | 1.0k $11.1k | Added +137 |
| CREATIVE FINANCIAL DESIGNS INC /ADV 0.00% of their portfolio | 1.0k $10.6k | Unchanged |
| BARCLAYS PLC 0.00% of their portfolio | 825 $8.8k | Reduced -1.1k |
| SIGNATUREFD, LLC 0.00% of their portfolio | 697 $7.4k | Reduced -223 |
| Pinnacle Wealth Planning Services, Inc. 0.00% of their portfolio | 631 $6.7k | Reduced -173 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 601 $6.4k | Unchanged |
| JONES FINANCIAL COMPANIES LLLP 0.00% of their portfolio | 576 $6.1k | Reduced -36 |
| Allworth Financial LP 0.00% of their portfolio | 523 $5.5k | Added +297 |
| C M BIDWELL & ASSOCIATES LTD 0.00% of their portfolio | 497 $5.3k | New |
| IFP Advisors, Inc 0.00% of their portfolio | 439 $4.7k | Added +299 |
| Versant Capital Management, Inc 0.00% of their portfolio | 310 $3.3k | Added +51 |
| EverSource Wealth Advisors, LLC 0.00% of their portfolio | 274 $2.9k | Added +115 |
| Advisors Asset Management, Inc. 0.00% of their portfolio | 120 $1.3k | Reduced -149 |
| GILL CAPITAL PARTNERS, LLC 0.00% of their portfolio | 108 $1.1k | Unchanged |
| MJT & Associates Financial Advisory Group, Inc. 0.00% of their portfolio | 100 $1.1k | Unchanged |
| True Wealth Design, LLC 0.00% of their portfolio | 90 $955 | Added +43 |
| Essential Partners LLC 0.00% of their portfolio | 81 $859 | Reduced -553 |
| SBI Securities Co., Ltd. 0.00% of their portfolio | 80 $849 | Added +5 |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 73 $775 | Unchanged |
| Global Retirement Partners, LLC 0.00% of their portfolio | 68 $724 | First filing |
| ROTHSCHILD INVESTMENT LLC 0.00% of their portfolio | 62 $658 | Added +36 |
| Farther Finance Advisors, LLC 0.00% of their portfolio | 54 $573 | Added +11 |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 53 $0 | Reduced -73 |