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 * Feldman Jerome I   2. Issuer Name and Ticker or Trading Symbol GSE SYSTEMS INC [GVP] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chariman (Last) (First) (Middle) GSE SYSTEMS, INC., 1332 LONDONTOWN BLVD. 3. Date of Earliest Transaction (Month/Day/Year) 09/06/2013 (Street) SYKESVILLE, MD 21784 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 09/06/2013   S   402 D $ 1.5101 228,456 D   Common Stock 09/06/2013   S   325 D $ 1.52 228,131 D   Common Stock 09/06/2013   S   173 D $ 1.53 227,958 D   Common Stock 09/06/2013   S   1,500 D $ 1.5401 226,458 D   Common Stock 09/06/2013   S   200 D $ 1.55 226,258 D   Common Stock 09/06/2013   S   500 D $ 1.5501 225,758 D   Common Stock 09/06/2013   S   100 D $ 1.5575 225,658 D   Common Stock 09/06/2013   S   100 D $ 1.5675 225,558 D   Common Stock 09/06/2013   S   5,700 D $ 1.57 219,858 D   Common Stock 09/06/2013   S   1,000 D $ 1.5701 218,858 D   Common Stock               1,341 I GP 401(k) Retirement Plan Common Stock               354 I Held by members of Mr. Feldman's Family

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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

Employee Stock Option

$ 1.85

(1)

11/11/2018

Common Stock

150,000

150,000

D

Employee Stock Option

$ 3.4

(2)

10/28/2017

Common Stock

40,000

40,000

D

Employee Stock Option

$ 5.95

(3)

10/23/2018

Common Stock

100,000

100,000

D

Employee Stock Option

$ 3.4

(4)

10/28/2017

Common Stock

10,000

10,000

I

Held by member of Mr. Feldman's Family

Employee Stock Option

$ 5.95

(5)

10/23/2018

Common Stock

25,000

25,000

I

Held by member of Mr. Feldman's Family

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Feldman Jerome I GSE SYSTEMS, INC. 1332 LONDONTOWN BLVD. SYKESVILLE, MD 21784	X		Chariman

Signatures

/s/ Jerome I Feldman		09/11/2013
**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)	Exercisable as follows: 30,000 11/11/2012; 30,000 11/11/2013; 30,000 11/11/2014; 30,000 11/11/2015, 30,000 11/11/2016
(2)	Exercisable as follows: 16,000 10/28/2011; 12,000 10/28/2012; 12,000 10/28/2013
(3)	Exercisable as follows: 14,285 10/23/2009; 14,286 10/23/2010; 14,286 10/23/2011; 14,285 10/23/2012; 14,286 10/23/2013; 14,286 10/23/2014; 14,286 10/23/2015
(4)	Exercisable as follows: 4,000 10/28/2011; 3,000 10/28/2012; 3,000 10/28/2013
(5)	Exercisable as follows: 3,571 10/23/2009; 3,571 10/23/2010; 3,572 10/23/2011; 3,571 10/23/2012; 3,572 10/23/2013; 3,571 10/23/2014; 3,572 10/23/2015

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