FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN 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 * Lee Simon S.   2. Issuer Name and Ticker or Trading Symbol STG Group, Inc. [GDEF] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director __X__ 10% Owner _____ Officer (give title below) __X__ Other (specify below) 13(d) group member (Last) (First) (Middle) 9131 SOUTHERN BREEZE DRIVE 3. Date of Earliest Transaction (Month/Day/Year) 11/23/2015 (Street) ORLANDO, FL 32836 4. If Amendment, Date Original Filed(Month/Day/Year) 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 Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 11/23/2015   J   8,319,080 A (1) 8,319,080 (2) I By: Simon S. Lee Management Trust (3) (4) Common Stock 11/23/2015   J   521,039 A (1) 521,039 (2) I By: JSL Descendants Trust (3) (4) Common Stock 11/23/2015   J   511,733 A (1) 511,733 (2) I By: Brian Lee Family Trust (3) (4)

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Lee Simon S. 9131 SOUTHERN BREEZE DRIVE ORLANDO, FL 32836	X	X		13(d) group member

Signatures

Simon S. Lee		12/03/2015
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(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)	The securities were received in exchange for all equity interests owned in STG Group, Inc. upon the consummation of the transactions contemplated by the Stock Purchase Agreement, dated as of June 8, 2015, by and between Global Defense & National Security Systems, Inc., STG Group, Inc., the stockholders of STG Group, Inc. and the other parties thereto.
(2)	The number of securities held includes the stock dividend paid on November 30, 2015 to holders of record on November 23, 2015.
(3)	The securities are held indirectly by Simon S. Lee, as the trustee. The Simon S. Lee Management Trust has filed a Form 3, as a 10% holder.
(4)	The securities are indirectly owned by Simon S. Lee. The reporting person disclaims beneficial ownership of these shares except to the extent of the reporting person's pecuniary interest in the shares.

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