Form: 3

Initial statement of beneficial ownership of securities

May 17, 2011

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*
Jacobsen Sherertz, Kimberly J.
(Last) (First) (Middle)
25011 NE CRESAP ROAD
(Street)
BATTLE GROUND WA 98604
(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
01/20/2011 		3. Issuer Name and Ticker or Trading Symbol
BARRETT BUSINESS SERVICES INC [ BBSI ]
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)
X Form filed by One Reporting Person
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 15,000 D
Common Stock 2,541,832 I By Estate of William W. Sherertz(1)
Common Stock 19,600 I By son
Common Stock 20,749 I By daughter
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
Nonqualified Stock Options 01/20/2011 01/20/2012 Common Stock 2,000 11.08 I By Estate of William W. Sherertz(1)
Nonqualified Stock Options 01/20/2011 01/20/2012 Common Stock 2,000 13.38 I By Estate of William W. Sherertz(1)
Nonqualified Stock Options 12/30/2005 01/20/2012 Common Stock 98,697 15.2 I By Estate of William W. Sherertz(1)
Explanation of Responses:
1. These shares are owned directly by the Estate of William W. Sherertz, a ten percent beneficial owner of the issuer, and indirectly by Kimberly J. Sherertz as personal representative of the estate.
/s/ Kimberly J. Sherertz 05/13/2011
** Signature of Reporting Person Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* 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).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.