Ownership Submission
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 *
Perl Andrew Damian
  2. Issuer Name and Ticker or Trading Symbol
GLOBAL DEFENSE TECHNOLOGY & SYSTEMS, INC. [GTEC]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
1501 FARM CREDIT DRIVE, SUITE 2300
3. Date of Earliest Transaction (Month/Day/Year)
12/16/2009
(Street)

MCLEAN, VA 22102-5011
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ 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 12/16/2009   A   3,845 (1) A $ 0 3,845 D  
Common Stock               3,803,274 I See footnote (2)

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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
Perl Andrew Damian
1501 FARM CREDIT DRIVE
SUITE 2300
MCLEAN, VA 22102-5011
  X   X    
Contego Systems LLC
1501 FARM CREDIT DRIVE
SUITE 2300
MCLEAN, VA 22102-5011
    X    
Kende Holding kft
ZICHY JENO U. 4
BUDAPEST, K5 1066
    X    
Global Strategies Group Holding S.A.
15 BOULEVARD ROOSEVELT, L-2450
N4 
    X    

Signatures

 /s/ Lisa Broome, Attorney-in-Fact for A. Damian Perl   12/17/2009
**Signature of Reporting Person Date

 /s/ Lisa Broome, Attorney-in-Fact for Contego Systems LLC   12/17/2009
**Signature of Reporting Person Date

 /s/ Lisa Broome, Attorney-in-Fact for Kende Holding kft   12/17/2009
**Signature of Reporting Person Date

 /s/ Lisa Broome, Attorney-in-Fact for Global Strategies Group Holding, S.A.   12/17/2009
**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) Represents restricted shares granted directly to A. Damian Perl as a non-employee director of the Issuer. The restricted shares vest in three equal, annual installments beginning on the first anniversary of the Transaction Date.
(2) These shares are owned by Contego Systems LLC ("Contego"). Contego is wholly owned and managed by Kende Holding kft ("Kende"). Kende is 99.98% owned and controlled by Global Strategies Group Holding, S.A. ("GLOBAL"). GLOBAL is controlled by A. Damian Perl.

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