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 * Black Archie C.   2. Issuer Name and Ticker or Trading Symbol SPS COMMERCE INC [SPSC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) President & CEO (Last) (First) (Middle) 333 SOUTH SEVENTH STREET, SUITE 1000 3. Date of Earliest Transaction (Month/Day/Year) 02/13/2013 (Street) MINNEAPOLIS, MN 55402 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 02/13/2013   M   5,744 A $ 0.3745 30,393 D   Common Stock 02/13/2013   S   5,744 D $ 37.0877 (1) 24,649 D   Common Stock 02/14/2013   M   72 A $ 0.3745 24,721 D   Common Stock 02/14/2013   M   2,651 A $ 0.3745 27,372 D   Common Stock 02/14/2013   M   6,331 A $ 0.3745 33,703 D   Common Stock 02/14/2013   S   9,054 D $ 37.7093 (2) 24,649 D   Common Stock 02/15/2013   M   10,614 A $ 0.3745 35,263 D   Common Stock 02/15/2013   S   10,614 D $ 37.6948 (3) 24,649 D   Common Stock               200 I By son - I Common Stock               200 I By son - II Common Stock               200 I By son - III Common Stock               200 I By son - IV

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

$ 0.3745

02/13/2013

M

5,744

(4)

06/30/2014

Common Stock

5,744

$ 0

72 (5)

D

Employee Stock Option (right to buy)

$ 0.3745

02/14/2013

M

72

(4)

06/30/2014

Common Stock

72

$ 0

0

D

Employee Stock Option (right to buy)

$ 0.3745

02/14/2013

M

2,651

(4)

12/31/2014

Common Stock

2,651

$ 0

0

D

Employee Stock Option (right to buy)

$ 0.3745

02/14/2013

M

6,331

(4)

03/31/2016

Common Stock

6,331

$ 0

109,621

D

Employee Stock Option (right to buy)

$ 0.3745

02/15/2013

M

10,614

(4)

03/31/2016

Common Stock

10,614

$ 0

99,007

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Black Archie C. 333 SOUTH SEVENTH STREET SUITE 1000 MINNEAPOLIS, MN 55402	X		President & CEO

Signatures

/s/ James R. DeBuse, attorney-in-fact		02/15/2013
**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)	Reflects the weighted average price of $37.0877 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on February 13, 2013 with sales prices ranging from $36.70 to $37.64 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.
(2)	Reflects the weighted average price of $37.7093 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on February 14, 2013 with sales prices ranging from $37.12 to $37.93 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.
(3)	Reflects the weighted average price of $37.6948 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on February 15, 2013 with sales prices ranging from $37.10 to $37.98 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.
(4)	Fully vested.
(5)	The Form 4 filed on December 14, 2012 erroneously reported the exercise of securities from this grant thereby incorrectly reporting the number of derivitive securities remaining under this employee stock option. The Amended Form 4 to correct the error was filed on February 15, 2013.

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