X0609 4 2026-08-19 0 0000910329 MEDIFAST INC MED 0001766850 Kiai Parsa false 24 MAPLE AVE RYE NY 10580 1 0 0 0 0 Common Stock 2026-08-19 4 P 0 28538 11.6576 A 619331 I Notes Common Stock 2026-08-19 4 P 0 799 11.6576 A 17802 I Notes Common Stock 2026-08-20 4 P 0 41975 11.6037 A 661306 I Notes Common Stock 2026-08-20 4 P 0 1175 11.6037 A 18977 I Notes Ownership of Steamboat Capital Partners Master Fund, LP (Master) which has delegated investment discretion to Steamboat Capital Partners, LLC (IA). Ownership of Steamboat Capital Partners II, LP (II). Steamboat Capital Partners GP, LLC (GP) is general partner of, and entitled to receive a performance allocation from, each of Master and II. Parsa Kiai ("Kiai") is the Managing Member of GP and IA. Accordingly, Kiai may be deemed to have a pecuniary interest in the shares owned by Master and II. Kiai disclaims beneficial ownership of securities reported hereon except to the extent of his pecuniary interest therein. This is an average price. Actual prices paid for the shares purchased on 8/19/26 and reported on this line range from $11.56 to $11.80. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This is an average price. Actual prices paid for the shares purchased on 8/20/26 and reported on this line range from $11.46 to $11.77. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. /s/ Parsa Kiai 2026-08-21