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 * Dean Eric C.   2. Issuer Name and Ticker or Trading Symbol LIQUIDITY SERVICES INC [LQDT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Information Officer (Last) (First) (Middle) C/O LIQUIDITY SERVICES, INC., 1920 L STREET, N.W., 6TH FLOOR 3. Date of Earliest Transaction (Month/Day/Year) 10/11/2011 (Street) WASHINGTON, DC 20036 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 10/11/2011   M   24,995 A $ 7.48 24,995 D   Common Stock 10/11/2011   S(1)   24,995 D $ 30.6 0 D

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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 Grant

$ 15.47

(2)

10/01/2020

Common Stock

7,569

7,569

D

Employee Stock Option

$ 15.47

(3)

10/01/2020

Common Stock

14,911

14,911

D

Employee Stock Grant

$ 15.47

(4)

10/01/2020

Common Stock

15,000

15,000

D

Employee Stock Option

$ 7.48

10/11/2011

M

24,995

(5)

10/01/2018

Common Stock

73,000

$ 7.48

48,005

D

Employee Stock Option

$ 13.56

(6)

10/15/2017

Common Stock

250,000

250,000

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Dean Eric C. C/O LIQUIDITY SERVICES, INC. 1920 L STREET, N.W., 6TH FLOOR WASHINGTON, DC 20036			Chief Information Officer

Signatures

/s/ James E. Williams, by power of attorney		10/12/2011
**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)	The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 12, 2011.
(2)	Twenty-five percent of this restricted stock grant vested on October 1, 2011 and thereafter 1/4th of the restricted stock grant will vest on October 1 of each year for three years.
(3)	Twenty-five percent of this option grant vested on October 1, 2011 and thereafter 1/48th of the option grant will vest each month for thirty-six months.
(4)	These restricted shares will vest, if at all, based on the Issuer's achievement of certain financial milestones.
(5)	Twenty percent of this option grant vested on October 1, 2009 and thereafter 1/60th of the option grant will vest each month for forty-eight months.
(6)	Twenty-five percent of this option grant vested on 10/15/2008, and thereafter, 1/48th of the option grant will vest each month for thirty-six months.

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