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
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      
1. Name and Address of Reporting Person * Harris Anthony J 2. Issuer Name and Ticker or Trading Symbol BARRETT BUSINESS SERVICES INC [ BBSI ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable)_____ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
Executive VP & CFO
(Last)         (First)         (Middle)
8100 NE PARKWAY DRIVE, SUITE 200
3. Date of Earliest Transaction (MM/DD/YYYY)
7/1/2021
(Street)
VANCOUVER, WA 98662
(City)       (State)       (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)
 
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 Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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  7/1/2021    M    500.00  A $0.00  2310.00  D   
Common Stock  7/1/2021    F    197.00  D $73.36  2113.00  D   
Common Stock  7/1/2021    M    388.00  A $0.00  2501.00  D   
Common Stock  7/1/2021    F    153.00  D $73.36  2348.00  D   
Common Stock  7/1/2021    M    475.00  A $0.00  2823.00  D   
Common Stock  7/1/2021    F    187.00  D $73.36  2636.00  D   
Common Stock  7/1/2021    M    1361.00  A $0.00  3997.00  D   
Common Stock  7/1/2021    F    536.00  D $73.36  3461.00  D   

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 7. Title and Amount of Securities Underlying Derivative Security
(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
Restricted Stock Units   (1) 7/1/2021    M        500.00    (2)  (2) Common Stock  500.00  $0.00  0.00  D   
Restricted Stock Units   (1) 7/1/2021    M        388.00    (3)  (3) Common Stock  388.00  $0.00  388.00  D   
Restricted Stock Units   (1) 7/1/2021    M        475.00    (4)  (4) Common Stock  475.00  $0.00  950.00  D   
Restricted Stock Units   (1) 7/1/2021    M        1361.00    (5)  (5) Common Stock  1361.00  $0.00  4081.00  D   
Restricted Stock Units   (1) 7/1/2021    A     4089.00       (6)  (6) Common Stock  4089.00  $0.00  4089.00  D   
Restricted Stock Units   (1) 7/1/2021    A     114.00       (7)  (7) Common Stock  114.00  $0.00  114.00  D   

Explanation of Responses:
(1)  Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's common stock.
(2)  The Restricted Stock Units vest in four annual installments beginning July 1, 2018, and will be settled by delivery of unrestricted shares of common stock on the vesting date.
(3)  The Restricted Stock Units vest in four annual installments beginning July 1, 2019, and will be settled by delivery of unrestricted shares of common stock on the vesting date.
(4)  The Restricted Stock Units vest in four annual installments beginning July 1, 2020, and will be settled by delivery of unrestricted shares of common stock on the vesting date.
(5)  The Restricted Stock Units vest in four annual installments beginning July 1, 2021, and will be settled by delivery of unrestricted shares of common stock on the vesting date.
(6)  The Restricted Stock Units vest in four annual installments beginning July 1, 2022, and will be settled by delivery of unrestricted shares of common stock on the vesting date.
(7)  The Restricted Stock Units vest in one installment on July 1, 2026, and will be settled by delivery of unrestricted shares of common stock on the vesting date.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Harris Anthony J
8100 NE PARKWAY DRIVE, SUITE 200
VANCOUVER, WA 98662


Executive VP & CFO

Signatures
/s/ Anthony Harris 7/6/2021
**Signature of Reporting Person Date
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