X0609 4 2026-09-28 0 0000910329 MEDIFAST INC MED 0001289557 Chard Daniel R false C/O MEDIFAST, INC. 1501 S. CLINTON STREET, SUITE 500 BALTIMORE MD 21224 1 0 0 0 1 Common Stock 2026-09-28 4 S 0 9545 11.9788 D 140153.352 I The Dan and Allyson Family Irrevocable Trust Common Stock 2026-09-29 4 S 0 9544 11.73 D 130609.352 I The Dan and Allyson Family Irrevocable Trust Common Stock 17678 I Dan and Allyson as Joint Tenants Common Stock 188233 D The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $11.900 to $12.125, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. These shares are directly owned by The Dan and Allyson Family Irrevocable Trust, for which the reporting person is the Settlor of the Trust and Investment Trustee. The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $11.670 to $11.810, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. These shares are directly owned by a joint account of which the reporting person owns as a joint tenant with his spouse. /s/ James P. Maloney, attorney-in-fact 2026-09-30