<SEC-DOCUMENT>0000921895-16-006340-index.html : 20161214
<SEC-HEADER>0000921895-16-006340.hdr.sgml : 20161214
<ACCEPTANCE-DATETIME>20161214172139
ACCESSION NUMBER:		0000921895-16-006340
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20161214
DATE AS OF CHANGE:		20161214

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MEDIFAST INC
		CENTRAL INDEX KEY:			0000910329
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS FOOD PREPARATIONS & KINDRED PRODUCTS [2090]
		IRS NUMBER:				133714405
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-50217
		FILM NUMBER:		162051834

	BUSINESS ADDRESS:	
		STREET 1:		11445 CRONHILL DRIVE
		CITY:			OWINGS MILLS
		STATE:			MD
		ZIP:			21117
		BUSINESS PHONE:		7327640619

	MAIL ADDRESS:	
		STREET 1:		11445 CRONHILL DRIVE
		CITY:			OWINGS MILLS
		STATE:			MD
		ZIP:			21117

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HEALTHRITE INC
		DATE OF NAME CHANGE:	19951120

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	XX
		DATE OF NAME CHANGE:	19950619

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	00
		DATE OF NAME CHANGE:	19950619

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Engaged Capital LLC
		CENTRAL INDEX KEY:			0001559771
		IRS NUMBER:				454591052
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		610 NEWPORT CENTER DRIVE
		STREET 2:		SUITE 250
		CITY:			NEWPORT BEACH
		STATE:			CA
		ZIP:			92660
		BUSINESS PHONE:		949-734-7900

	MAIL ADDRESS:	
		STREET 1:		610 NEWPORT CENTER DRIVE
		STREET 2:		SUITE 250
		CITY:			NEWPORT BEACH
		STATE:			CA
		ZIP:			92660
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>sc13da509455006_12142016.htm
<DESCRIPTION>AMENDMENT NO. 5 TO THE SCHEDULE 13D
<TEXT>
Document 1 - file: sc13da509455006_12142016.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>2
<FILENAME>ex991to13da509455006_121416.pdf
<DESCRIPTION>EX. 99.1 - PURCHASE TRADING PLAN AGREEMENT, DATED DECEMBER 14, 2016
<TEXT>
Document 2 - file: ex991to13da509455006_121416.pdf

</DOCUMENT>
</SEC-DOCUMENT>