STG Form 3 Global Defense & National Security Systems / Pole Capital Master Fund North ownership change

SEC Form 3

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
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Polar Securities Inc.

(Last) (First) (Middle)

401 BAY STREET

SUITE 1900, P.O. BOX 19

(Street)

TORONTO A6 M5H 2Y4

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
06/09/2015

3. Issuer Name and Ticker or Trading Symbol
Global Defense & National Security Systems, Inc. [ GDEF ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

Director	X	10% Owner
Officer (give title below)		Other (specify below)

5. If Amendment, Date of 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

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	1,128,686	I	See footnote(1)

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: 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

1. Name and Address of Reporting Person^*

Polar Securities Inc.

(Last) (First) (Middle)

401 BAY STREET

SUITE 1900, P.O. BOX 19

(Street)

TORONTO A6 M5H 2Y4

(City) (State) (Zip)

1. Name and Address of Reporting Person^*

North Pole Capital Master Fund

(Last) (First) (Middle)

C/O POLAR SECURITIES INC., 401 BAY ST.

SUITE 1900, PO BOX 19

(Street)

TORONTO A6 M5H 2Y4

(City) (State) (Zip)

Explanation of Responses:

1. Polar Securities Inc. ("PSI") serves as investment manager to North Pole Capital Master Fund, a Cayman Islands exempted company ("NPM", together with PSI, the "Reporting Persons") and has investment discretion with respect to the securities reported herein which are held by NPM. The Reporting Persons disclaim beneficial ownership of such securities, and this report shall not be deemed an admission that any Reporting Person is the beneficial owners of the securities for the purpose of Section 16 or for any other purpose, except to the extent of the Reporting Persons' pecuniary interest therein.

	POLAR SECURITIES INC., for itself and as investment manager to NORTH POLE CAPITAL MASTER FUND, /s/ Paul Sabourin, Chief Investment Officer	06/11/2015
	** Signature of Reporting Person	Date
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