Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Welling Glenn W.
2. Date of Event Requiring Statement (Month/Day/Year)
06/17/2015
3. Issuer Name and Ticker or Trading Symbol
MEDIFAST INC [MED]
(Last)
(First)
(Middle)
C/O ENGAGED CAPITAL, LLC, 610 NEWPORT CENTER DR. SUITE 250
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

NEWPORT BEACH, CA 92660
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 214,645
I
By: Engaged Capital Master Feeder I, LP (1)
Common Stock 421,621
I
By: Engaged Capital Master Feeder II, LP (2)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Call Option (Right to Buy)   (3) 06/30/2015 Common Stock 53,250 $ 24 I By: Engaged Capital Master Feeder I, LP (1)
Call Option (Right to Buy)   (3) 06/30/2015 Common Stock 46,750 $ 24 I By: Engaged Capital Master Feeder II, LP (2)

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Welling Glenn W.
C/O ENGAGED CAPITAL, LLC
610 NEWPORT CENTER DR. SUITE 250
NEWPORT BEACH, CA 92660
  X      

Signatures

/s/ Jason L. Groves, Esq., attorney-in-fact 06/26/2015
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Securities owned directly by Engaged Capital Master Feeder I, LP ("Engaged Capital Master I"). Mr. Welling, solely by virtue of his position as the founder and Chief Investment Officer ("CIO") of Engaged Capital, LLC ("Engaged Capital"), the general partner and investment advisor of Engaged Capital Master I, and as the sole member of Engaged Capital Holdings, LLC ("Engaged Holdings"), the managing member of Engaged Capital, may be deemed to beneficially own the securities owned directly by Engaged Capital Master I for purposes of Section 16. Mr. Welling expressly disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.
(2) Securities owned directly by Engaged Capital Master Feeder II, LP ("Engaged Capital Master II"). Mr. Welling, solely by virtue of his position as the founder and CIO of Engaged Capital, the general partner and investment advisor of Engaged Capital Master II, and as the sole member of Engaged Holdings, the managing member of Engaged Capital, may be deemed to beneficially own the securities owned directly by Engaged Capital Master II for purposes of Section 16. Mr. Welling expressly disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.
(3) The Call Opions reported herein are currently exercisable.
 
Remarks:
Exhibit List: Exhibit 24- Limited Power of Attorney

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