Sec Form 4 Filing - Thomason Linton J @ GREAT SOUTHERN BANCORP INC - 2012-01-27

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 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

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person Thomason Linton J 2. Issuer Name and Ticker or Trading Symbol GREAT SOUTHERN BANCORP INC [ GSBC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner _____ Officer (give title below) X __ Other (specify below) Vice President of Subsidiary (Last) (First) (Middle) 1412 FOUR WINDS DRIVE 3. Date of Earliest Transaction (MM/DD/YY) 01/27/2012 (Street) NIXA, MO65714 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 6,567 D Common stock 01/27/2012 M 1,000 A $ 20.4055 1,000 I Spouse Common stock 01/27/2012 M 400 A $ 8.36 1,400 I Spouse Common stock 01/27/2012 M 200 A $ 21.44 1,600 I Spouse Common stock 01/27/2012 S 1,000 D $ 24.587 600 I Spouse Common stock 01/27/2012 S 600 D $ 24.5871 0 I Spouse Common stock 1,229 I Spouse's 401(k) Plan

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 Option to purchase $ 18.1875 ( 1 ) 09/18/2012 Common stock 2,500 2,500 D Option to purchase $ 20.12 ( 2 ) 09/25/2013 Common stock 3,000 5,500 D Option to purchase $ 32.07 ( 3 ) 09/22/2014 Common stock 2,250 7,750 D Option to purchase $ 30.34 ( 4 ) 09/20/2015 Common stock 2,250 1,000 D Option to purchase $ 30.66 ( 5 ) 10/18/2016 Common stock 1,800 11,800 D Option to purchase $ 25.48 ( 6 ) 10/17/2017 Common stock 1,900 13,700 D Option to purchase $ 8.36 ( 7 ) 11/19/2018 Common stock 1,900 15,600 D Option to purchase $ 21.44 ( 8 ) 12/09/2019 Common stock 1,900 17,500 D Option to purchase $ 22.08 ( 9 ) 11/17/2020 Common stock 2,000 19,500 D Option to purchase $ 19.53 ( 10 ) 11/16/2021 Common stock 2,000 21,500 D O ption to purchase $ 20.4055 01/27/2012 M 250 10/20/2005 10/20/2013 Common stock 250 $ 20.4055 750 I Spouse Option to purchase $ 20.4055 01/27/2012 M 250 10/20/2006 10/20/2013 Common stock 250 $ 20.4055 500 I Spouse Option to purchase $ 20.4055 01/27/2012 M 250 10/20/2007 10/20/2013 Common stock 250 $ 20.4055 250 I Spouse Option to puchase $ 20.4055 01/27/2012 M 250 10/20/2008 10/20/2013 Common stock 250 $ 20.4055 0 I Spouse Option to purchase $ 8.36 01/27/2012 M 200 11/19/2010 11/19/2018 Common stock 200 $ 8.36 600 I Spouse Option to purchase $ 8.36 01/27/2012 M 200 11/19/2011 11/19/2018 Common stock 200 $ 8.36 400 I Spouse Option to purchase $ 21.44 01/27/2012 M 200 12/09/2011 12/09/2019 Common stock 200 $ 21.44 600 I Spouse Option to purchase $ 32.07 ( 11 ) 09/22/2014 Common stock 600 600 I Spouse Option to purchase $ 30.34 ( 12 ) 09/20/2015 Common stock 1,000 1,600 I Spouse Option to purchase $ 30.66 ( 13 ) 10/18/2016 Common stock 800 2,400 I Spouse Option to purchase $ 25.48 ( 14 ) 10/17/2017 Common stock 800 3,200 I Spouse Option to purchase $ 8.36 ( 15 ) 11/19/2018 Common stock 400 3,600 I Spouse Option to purchase $ 21.44 ( 16 ) 12/09/2019 Common stock 600 4,200 I Spouse Option to purchase $ 22.08 ( 17 ) 11/17/2020 Common stock 500 4,700 I Spouse Option to purchase $ 19.53 ( 18 ) 11/16/2021 Common stock 500 5,200 I Spouse

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Thomason Linton J 1412 FOUR WINDS DRIVE NIXA, MO65714 Vice President of Subsidiary Signatures Matt Snyder, Attorney-in-fact for Linton J. Thomason 01/31/2012 Signature of Reporting Person Date

Explanation of Responses:

( 1 )625 shares vest on 9/18/2004, 9/18/2005, 9/18/2006 and 9/18/2007 ( 2 )750 shares vest on 9/25/2005, 9/25/2006, 9/25/2007 and 9/25/2008 ( 3 )1,918 shares vest on 12/31/2005 and 332 shares vest on 9/22/2009 ( 4 )563 shares vest on 9/20/2007 & 9/20/2008 and 562 shares vest on 9/20/2009 & 9/20/2010 ( 5 )450 shares vest on 10/18/2008, 10/18/2009, 10/18/2010 and 10/18/2011 ( 6 )475 shares vest on 10/17/2009, 10/17/2010, 10/17/2011 and 10/17/2012 ( 7 )475 shares vest on 11/19/2010, 11/19/2011, 11/19/2012 and 11/19/2013 ( 8 )475 shares vest on 12/9/2011, 12/9/2012, 12/9/2013 and 12/9/2014 ( 9 )500 shares vest on 11/17/2012, 11/17/2013, 11/17/2014 and 11/17/2015 ( 10 )500 shares vest on 11/16/2013, 11/16/2014, 11/16/2015 and 11/16/2016 ( 11 )600 shares vest on 12/31/2005 ( 12 )1,000 shares vest on 12/31/2005 ( 13 )200 shares vest on 10/18/2008, 10/18/2009, 10/18/2010 and 10/18/2011 ( 14 )200 shares vest on 10/17/2009, 10/17/2010, 10/17/2011 and 10/17/2012 ( 15 )200 shares vest on 11/19/2012 and 11/19/2013 ( 16 )200 shares vest on 12/9/2012, 12/9/2013 and 12/9/2014 ( 17 )125 shares vest on 11/17/2012, 11/17/2013, 11/17/2014 and 11/17/2015 ( 18 )125 shares vest on 11/16/2013, 11/16/2014, 11/16/2015 and 11/16/2016

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 Number.