FORM 4
[ X ] 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 *

WOLFANGER CRAIG 		2. Issuer Name and Ticker or Trading Symbol

SPARTECH CORP [ SEH ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__ X __ Director                      _____ 10% Owner
_____ Officer (give title below)      _____ Other (specify below)
(Last)          (First)          (Middle)

C/O SPARTECH CORPORATION, 120 S. CENTRAL AVENUE, SUITE 1700 		3. Date of Earliest Transaction (MM/DD/YYYY)

3/13/2013
(Street)

CLAYTON, MO 63105
(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   3/13/2013     D    17302   D   (1) 0   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     (2) 3/13/2013     D         1266      (2)   (2) Common Stock   1266     (2) 0   D    
Restricted Stock Units     (3) 3/13/2013     D         1153      (3)   (3) Common Stock   1153     (3) 0   D    
Restricted Stock Units     (4) 3/13/2013     D         1416      (4)   (4) Common Stock   1416     (4) 0   D    
Restricted Stock Units     (5) 3/13/2013     D         477      (5)   (5) Common Stock   477     (5) 0   D    
Restricted Stock Units     (6) 3/13/2013     D         5643      (6)   (6) Common Stock   5643     (6) 0   D    
Restricted Stock Units     (6) 3/13/2013     D         5203      (6)   (6) Common Stock   5203     (6) 0   D    
Restricted Stock Units     (6) 3/13/2013     D         5682      (6)   (6) Common Stock   5682     (6) 0   D    
Restricted Stock Units     (6) 3/13/2013     D         11364      (6)   (6) Common Stock   11364     (6) 0   D    
Restricted Stock Units     (6) 3/13/2013     D         5580      (6)   (6) Common Stock   5580     (6) 0   D    

Explanation of Responses:
( 1)  Disposed of pursuant to an Agreement and Plan of Merger, dated October 23, 2012 (the "Merger Agreement"), by and among PolyOne Corporation ("PolyOne"), 2012 RedHawk, Inc. ("Merger Sub"), 2012 RedHawk, LLC (n/k/a PolyOne Designed Structures and Solutions LLC) ("Merger LLC"), and Spartech Corporation ("Spartech"), pursuant to which Spartech first merged with and into Merger Sub with Spartech surviving the merger as a wholly owned subsidiary of PolyOne, and subsequently merged with and into Merger LLC, with Merger LLC as the surviving entity as a wholly owned subsidiary of PolyOne. Pursuant to the Merger Agreement, at the Effective Time (as defined in the Merger Agreement), each outstanding share of Spartech common stock (other than the shares of restricted stock described under footnote (2) below) was converted into the right to receive (i) .3167 of a PolyOne common share and (ii) $2.67 in cash.
( 2)  Pursuant to the Merger Agreement, at the Effective Time, these restricted stock units, which are payable on the first anniversary of the Reporting Person's termination of service from the Issuer's board, were assumed by PolyOne and replaced with PolyOne restricted stock units that represent the right to receive 553 shares of PolyOne common stock at the date of settlement.
( 3)  Pursuant to the Merger Agreement, at the Effective Time, these restricted stock units, which are payable on the first anniversary of the Reporting Person's termination of service from the Issuer's board, were assumed by PolyOne and replaced with PolyOne restricted stock units that represent the right to receive 503 shares of PolyOne common stock at the date of settlement.
( 4)  Pursuant to the Merger Agreement, at the Effective Time, these restricted stock units, which are payable on the first anniversary of the Reporting Person's termination of service from the Issuer's board, were assumed by PolyOne and replaced with PolyOne restricted stock units that represent the right to receive 618 shares of PolyOne common stock at the date of settlement.
( 5)  Pursuant to the Merger Agreement, at the Effective Time, these restricted stock units, which are payable on the first anniversary of the Reporting Person's termination of service from the Issuer's board, were assumed by PolyOne and replaced with PolyOne restricted stock units that represent the right to receive 208 shares of PolyOne common stock at the date of settlement.
( 6)  Pursuant to the Merger Agreement, at the Effective Time, these Spartech restricted stock units were converted into the right to receive (i) .3167 of a PolyOne common share and (ii) $2.67 in cash.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
WOLFANGER CRAIG
C/O SPARTECH CORPORATION
120 S. CENTRAL AVENUE, SUITE 1700
CLAYTON, MO 63105 		X



Signatures
/s/ Randy C. Ridenhour, Power of Attorney for Craig A. Wolfanger 3/13/2013
** 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 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).
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 control number.
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