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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1. Name and Address of Reporting Person * PRICE CRAIG H   2. Issuer Name and Ticker or Trading Symbol ESSEX CORPORATION [KEYW] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Vice President (Last) (First) (Middle) ESSEX CORP., 9150 GUILFORD ROAD 3. Date of Earliest Transaction (Month/Day/Year) 03/21/2005 (Street) COLUMBIA, MD 21046 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 Essex Corporation Common Stock 03/21/2005   M   12,500 A $ 1.69 27,157 D   Essex Corporation Common Stock 03/21/2005   M   10,000 A $ 1 37,157 D   Essex Corporation Common Stock 03/21/2005   M   7,500 A $ 1 44,657 D   Essex Corporation Common Stock 03/21/2005   S   30,000 D $ 17.69 14,657 D   Essex Corporation Common Stock               2,555 I 401K

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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

Incentive Stock Option

$ 2.36

(1)

11/12/2012

Common Stock

7,500

7,500

D

Incentive Stock Option

$ 6.07

(2)

10/02/2011

Common Stock

10,000

17,500

D

Incentive Stock Options

$ 3.96

(3)

01/22/2011

Common Stock

15,000

32,500

D

Incentive Stock Options

$ 2.04

(4)

09/05/2010

Common Stock

15,000

47,500

D

Incentive Stock Option

$ 1.69

03/16/2000

03/15/2010

Common Stock

12,500

60,000

D

Incentive Stock Option

$ 1.69

03/21/2005

M

12,500

03/16/2000

03/15/2010

Common Stock

12,500

$ 17.69

47,500

D

Incentive Stock Options

$ 1

(5)

04/12/2009

Common Stock

10,000

57,500

D

Incentive Stock Options

$ 1

03/21/2005

M

10,000

(5)

04/12/2009

Common Stock

10,000

$ 17.69

47,500

D

Incentive Stock Options

$ 1

(6)

11/16/2007

Common Stock

7,500

55,000

D

Incentive Stock Options

$ 1

03/21/2005

M

7,500

(6)

11/16/2007

Common Stock

7,500

$ 17.69

47,500

D

Incentive Stock Option

$ 3

(7)

01/30/2007

Common Stock

21,500

69,000

D

Incentive Stock Options

$ 17.23

01/24/2005

01/23/2012

Common Stock

2,000

71,000

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
PRICE CRAIG H ESSEX CORP. 9150 GUILFORD ROAD COLUMBIA, MD 21046			Vice President

Signatures

Craig H. Price		03/22/2005
**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)	3,750 shares exercisable on 11/13/2002; 3,750 shares exercisable on 11/13/2003
(2)	5,000 shares exercisable on 10/3/2001; 5,000 shares exercisable on 10/3/2002
(3)	7,500 shares exercisable on 1/23/2001; 7,500 shares exercisable on 1/23/2002
(4)	7,500 shares exercisable on 9/06/2000; 7,500 shares exercisable on 9/06/2001
(5)	5,000 shares exercisable on 4/13/1999; 2,500 shares exercisable on 4/13/2000; 2,500 shares exercisable on 4/13/2001
(6)	2,500 shares exercisable on 11/17/1997; 2,500 shares exercisable on 11/17/1998; 2,500 shares exercisable on 11/17/1999
(7)	7,000 shares exercisable on 6/30/1997; 7,000 shares exercisable on 6/30/1998; 7,500 shares exercisable on 6/30/1999

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