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 *
  CORPORATE OFFICE PROPERTIES TRUST
 2. Date of Event Requiring Statement (Month/Day/Year)
09/30/2010		 3. Issuer Name and Ticker or Trading Symbol
KEYW HOLDING CORP [KEYW]
(Last)
(First)
(Middle)
6711 COLUMBIA GATEWAY DRIVE, SUITE 300		 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 Original Filed(Month/Day/Year)
(Street)

COLUMBIA, MD 21046		 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, par value $0.001 3,068,184
I
Corporate Office Properties, L.P. (1)

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
Warrants to purchase common stock 03/15/2010 03/15/2017 Common stock 50,000 $ 9.25 I Corporate Office Properties, L.P. (1)

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
CORPORATE OFFICE PROPERTIES TRUST
6711 COLUMBIA GATEWAY DRIVE
SUITE 300
COLUMBIA, MD 21046		     X    

Signatures

/s/ Sarah E. Roberts as Attorney-in-Fact for Corporate Office Properties, LP 09/30/2010
**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) Corporate Office Properties Trust (COPT), a publicly held Maryland real estate investment trust, is the general partner of Corporate Office Properties, L.P. and has voting and dispositive power over these shares. COPT is managed by a ten member Board of Trustees. The members of COPT's Board of Trustees, including Mr. Randall M. Griffin, Chief Executive Officer and Trustee of COPT, disclaim beneficial ownership of these shares except to the extent of their respective pecuniary interests therein.
 
Remarks:
Exhibit List === Exhibit 24 - Power of Attorney

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