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 *
THOMPSON TIMOTHY
  2. Issuer Name and Ticker or Trading Symbol
PERFICIENT INC [PRFT]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Executive Vice President
(Last)
(First)
(Middle)
ONE CITYPLACE DR SUITE 190
3. Date of Earliest Transaction (Month/Day/Year)
12/21/2006
(Street)

ST LOUIS, MO 63141
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 12/21/2006   A   3,500 (1) A $ 0 63,566 D  
Common Stock 05/31/2007   G   186 D $ 0 63,380 D  
Common Stock 05/31/2007   S   11,344 D $ 21 52,036 D  
Common Stock 07/10/2007   S   500 (2) D $ 21.95 51,536 D  
Common Stock 07/19/2007   S   1,000 (2) D $ 22.95 50,536 D  
Common Stock 08/09/2007   S   1,500 (2) D $ 23.95 49,036 D  
Common Stock 08/10/2007   S   2,000 (2) D $ 24.95 47,036 D  
Common Stock 09/14/2007   S   5,000 D $ 23.62 42,036 D  
Common Stock 09/17/2007   M   1,500 A $ 0.5 43,536 D  
Common Stock 12/04/2007   A   5,000 (3) A $ 0 48,536 D  
Common Stock 12/13/2007   G   93 D $ 0 48,443 D  
Common Stock 12/14/2007   G   294 D $ 0 48,149 D  
Common Stock 12/15/2007   S   467 D $ 15.86 47,682 D  
Common Stock 12/21/2007   S   234 D $ 16.3693 47,448 D  
Common Stock 12/26/2007   S   1,000 (4) D $ 16.95 46,448 D  
Common Stock 03/18/2008   M   12,501 A $ 1.15 58,949 D  
Common Stock 03/18/2008   M   15,167 A $ 0.5 74,116 D  
Common Stock 03/18/2008   M   37,000 A $ 2.28 111,116 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 Option (right to buy) $ 0.5 09/17/2007   M     1,500   (5) 02/13/2013 Common Stock 1,500 $ 0 15,167 D  
Employee Stock Option (right to buy) $ 1.15 03/18/2008   M     12,501   (6) 06/25/2012 Common Stock 12,501 $ 0 0 D  
Employee Stock Option (right to buy) $ 0.5 03/18/2008   M     15,167   (5) 02/13/2013 Common Stock 15,167 $ 0 0 D  
Employee Stock Option (right to buy) $ 2.28 03/18/2008   M     37,000   (7) 12/11/2013 Common Stock 37,000 $ 0 13,000 (8) D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
THOMPSON TIMOTHY
ONE CITYPLACE DR SUITE 190
ST LOUIS, MO 63141
      Executive Vice President  

Signatures

 Timothy Thompson   10/20/2008
**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) Shares represent a grant of restricted stock which vests 20% annually on December 21, 2007, 2008, 2009, 2010, and 2011.
(2) Shares sold pursuant to Rule 10b-5 Trading Plan adopted by the reporting person on June 14, 2007.
(3) Shares represent a grant of restricted stock which vests 20% annually on December 4, 2008, 2009, 2010, 2011, and 2012.
(4) Shares sold pursuant to Rule 10b-5 Trading Plan adopted by the reporting person on December 12, 2007.
(5) The option was originally granted on February 13, 2003 for 25,000 options. One third of the option grant was exercisable on February 13, 2004, and the remainder of the grant was exercisable ratably over the subsequent 8 quarters.
(6) The option was originally granted on June 25, 2002 for 30,000 options. One third of the option grant was exercisable on June 25, 2003, and the remainder of the grant was exercisable ratably over the subsequent 8 quarters.
(7) The option was originally granted on December 11, 2003. One quarter of the option grant was exercisable on December 11, 2004, and the remainder of the grant was exercisable ratably over the subsequent 12 quarters.
(8) The total securities owned in Tables I and II is 234,926

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