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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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"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."}],"balance_after":130609.352,"source":{"system":"sec-edgar","filing":"0001628280-26-064063","document":"wk-form4_1790813091.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/910329/000162828026064063/wk-form4_1790813091.xml","form_type":"4"}},{"id":4632985,"issuer":{"id":6587,"kind":"organization","name":"MEDIFAST INC"},"owners":[{"id":55689,"kind":"person","name":"Chard Daniel R","position":1,"cik":"0001289557","reported_name":"Chard Daniel R","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-10-01T00:04:53.000Z","date":"2026-09-28","kind":"sale","planned":true,"acquired":false,"shares":9545,"price":11.9788,"value":114337.646,"ownership":{"direct":false,"nature":"The Dan and Allyson Family Irrevocable Trust"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"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."}],"balance_after":140153.352,"source":{"system":"sec-edgar","filing":"0001628280-26-064063","document":"wk-form4_1790813091.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/910329/000162828026064063/wk-form4_1790813091.xml","form_type":"4"}},{"id":673300,"issuer":{"id":6587,"kind":"organization","name":"MEDIFAST INC"},"owners":[{"id":18853,"kind":"person","name":"Kiai Parsa","position":1,"cik":"0001766850","reported_name":"Kiai Parsa","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-28T12:47:53.000Z","date":"2026-08-26","kind":"purchase","planned":false,"acquired":true,"shares":1175,"price":12.2632,"value":14409.26,"ownership":{"direct":false,"nature":"Notes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Ownership of Steamboat Capital Partners II, LP (II)."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"This is an average price. Actual prices paid for the shares purchased on 8/26/26 and reported on this line range from $12.12 to $12.38. 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."}],"balance_after":20270,"source":{"system":"sec-edgar","filing":"0001213900-26-094862","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/910329/000121390026094862/ownership.xml","form_type":"4"}},{"id":673299,"issuer":{"id":6587,"kind":"organization","name":"MEDIFAST INC"},"owners":[{"id":18853,"kind":"person","name":"Kiai Parsa","position":1,"cik":"0001766850","reported_name":"Kiai Parsa","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-28T12:47:53.000Z","date":"2026-08-26","kind":"purchase","planned":false,"acquired":true,"shares":41975,"price":12.2632,"value":514747.82,"ownership":{"direct":false,"nature":"Notes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Ownership of Steamboat Capital Partners Master Fund, LP (Master) which has delegated investment discretion to Steamboat Capital Partners, LLC (IA)."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"This is an average price. Actual prices paid for the shares purchased on 8/26/26 and reported on this line range from $12.12 to $12.38. 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."}],"balance_after":707492,"source":{"system":"sec-edgar","filing":"0001213900-26-094862","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/910329/000121390026094862/ownership.xml","form_type":"4"}},{"id":675467,"issuer":{"id":6587,"kind":"organization","name":"MEDIFAST INC"},"owners":[{"id":18853,"kind":"person","name":"Kiai Parsa","position":1,"cik":"0001766850","reported_name":"Kiai Parsa","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-26T15:47:15.000Z","date":"2026-08-24","kind":"purchase","planned":false,"acquired":true,"shares":118,"price":11.9996,"value":1415.9528,"ownership":{"direct":false,"nature":"Notes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Ownership of Steamboat Capital Partners II, LP (II)."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"This is an average price. Actual prices paid for the shares purchased on 8/24/26 and reported on this line range from $11.99 to $12. 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."}],"balance_after":19095,"source":{"system":"sec-edgar","filing":"0001213900-26-093824","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/910329/000121390026093824/ownership.xml","form_type":"4"}},{"id":675466,"issuer":{"id":6587,"kind":"organization","name":"MEDIFAST INC"},"owners":[{"id":18853,"kind":"person","name":"Kiai Parsa","position":1,"cik":"0001766850","reported_name":"Kiai Parsa","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-26T15:47:15.000Z","date":"2026-08-24","kind":"purchase","planned":false,"acquired":true,"shares":4211,"price":11.9996,"value":50530.3156,"ownership":{"direct":false,"nature":"Notes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Ownership of Steamboat Capital Partners Master Fund, LP (Master) which has delegated investment discretion to Steamboat Capital Partners, LLC (IA)."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"This is an average price. Actual prices paid for the shares purchased on 8/24/26 and reported on this line range from $11.99 to $12. 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."}],"balance_after":665517,"source":{"system":"sec-edgar","filing":"0001213900-26-093824","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/910329/000121390026093824/ownership.xml","form_type":"4"}},{"id":679319,"issuer":{"id":6587,"kind":"organization","name":"MEDIFAST INC"},"owners":[{"id":18853,"kind":"person","name":"Kiai Parsa","position":1,"cik":"0001766850","reported_name":"Kiai Parsa","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-21T16:35:39.000Z","date":"2026-08-20","kind":"purchase","planned":false,"acquired":true,"shares":1175,"price":11.6037,"value":13634.3475,"ownership":{"direct":false,"nature":"Notes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Ownership of Steamboat Capital Partners II, LP (II)."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"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."}],"balance_after":18977,"source":{"system":"sec-edgar","filing":"0001213900-26-092479","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/910329/000121390026092479/ownership.xml","form_type":"4"}},{"id":679318,"issuer":{"id":6587,"kind":"organization","name":"MEDIFAST INC"},"owners":[{"id":18853,"kind":"person","name":"Kiai Parsa","position":1,"cik":"0001766850","reported_name":"Kiai Parsa","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-21T16:35:39.000Z","date":"2026-08-20","kind":"purchase","planned":false,"acquired":true,"shares":41975,"price":11.6037,"value":487065.3075,"ownership":{"direct":false,"nature":"Notes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Ownership of Steamboat Capital Partners Master Fund, LP (Master) which has delegated investment discretion to Steamboat Capital Partners, LLC (IA)."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"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."}],"balance_after":661306,"source":{"system":"sec-edgar","filing":"0001213900-26-092479","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/910329/000121390026092479/ownership.xml","form_type":"4"}},{"id":679317,"issuer":{"id":6587,"kind":"organization","name":"MEDIFAST INC"},"owners":[{"id":18853,"kind":"person","name":"Kiai Parsa","position":1,"cik":"0001766850","reported_name":"Kiai Parsa","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-21T16:35:39.000Z","date":"2026-08-19","kind":"purchase","planned":false,"acquired":true,"shares":799,"price":11.6576,"value":9314.4224,"ownership":{"direct":false,"nature":"Notes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Ownership of Steamboat Capital Partners II, LP (II)."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"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."}],"balance_after":17802,"source":{"system":"sec-edgar","filing":"0001213900-26-092479","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/910329/000121390026092479/ownership.xml","form_type":"4"}},{"id":679316,"issuer":{"id":6587,"kind":"organization","name":"MEDIFAST INC"},"owners":[{"id":18853,"kind":"person","name":"Kiai Parsa","position":1,"cik":"0001766850","reported_name":"Kiai Parsa","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-21T16:35:39.000Z","date":"2026-08-19","kind":"purchase","planned":false,"acquired":true,"shares":28538,"price":11.6576,"value":332684.5888,"ownership":{"direct":false,"nature":"Notes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Ownership of Steamboat Capital Partners Master Fund, LP (Master) which has delegated investment discretion to Steamboat Capital Partners, LLC (IA)."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"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. 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