XNYS:CNC Centene Corp Insider Activity 4 Filing - 2/29/2012

Effective Date 2/29/2012

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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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(Print or Type Responses)
1. Name and Address of Reporting Person *
NEIDORFF MICHAEL F
  2. Issuer Name and Ticker or Trading Symbol
CENTENE CORP [CNC]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chairman, President and CEO
(Last)
(First)
(Middle)
7700 FORYSTH BOULEVARD
3. Date of Earliest Transaction (Month/Day/Year)
02/29/2012
(Street)

ST. LOUIS, MO 63105
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 02/29/2012   M   100,000 A $13.58 1,782,891(1) D  
Common Stock 02/29/2012   S   100,000(2) D $48.97 1,682,891(1) D  
Common Stock 03/01/2012   M   22,759 A $13.58 1,705,650(1) D  
Common Stock 03/01/2012   M   45,832 A $13.98 1,751,482(1) D  
Common Stock 03/01/2012   S   68,591(2) D $48.93 1,682,891(1) D  
Common Stock 03/02/2012   M   81,409 A $13.98 1,764,300(1) D  
Common Stock 03/02/2012   S   81,409(2) D $47.45 1,682,891(1) D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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. SEC 1474 (9-02)

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
Common Stock Option (right to buy) $13.58 02/29/2012   M     100,000 08/26/2008 08/26/2013 Common Stock 100,000 $13.58 22,759 D  
Common Stock Option (right to buy) $13.58 03/01/2012   M     22,759 08/26/2008 08/26/2013 Common Stock 22,759 $13.58 0 D  
Common Stock Option (right to buy) $13.98 03/01/2012   M     45,832 12/16/2004 12/16/2013 Common Stock 45,832 $13.98 154,168 D  
Common Stock Option (right to buy) $13.98 03/02/2012   M     81,409 12/16/2005 12/16/2013 Common Stock 81,409 $13.98 72,759 D  
Phantom Stock $ 0 (3)             02/11/2011 02/11/2011(4) Common Stock 50,569.001   50,569.001 D  
Common Stock Option (right to buy) $17.85             07/27/2007 07/27/2014 Common Stock 180,000   180,000 D  
Common Stock Option (right to buy) $25.4             12/13/2008 12/13/2015 Common Stock 200,000   200,000 D  
Common Stock Option (right to buy) $25.21             12/12/2009 12/12/2016 Common Stock 96,034   96,034 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
NEIDORFF MICHAEL F
7700 FORYSTH BOULEVARD
ST. LOUIS, MO 63105
  X     Chairman, President and CEO  

Signatures

 /s/ William N. Scheffel (executed by attorney-in-fact)   03/02/2012
** 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) Ownership includes 540,000 shares of restricted stock subject to vesting requirements.
(2) This sale is pursuant to a 10b5-1 Trading Plan established on February 15, 2012 and for diversification of assets for estate planning. The weighted average price for this transaction is reported within the form. Full information regarding the number of shares at each price is available upon request.
(3) Each share of phantom stock represents the right to receive the fair market value of one share of Centene common stock.
(4) The phantom stock has no formal expiration date. The phantom stock will be settled in cash or other non-Company securities upon Mr. Neidorff's termination with the Company or on such other date Mr. Neidorff may elect.

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

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

XNYS:CNC Centene Corp Insider Activity 4 Filling

Centene Corp XNYS:CNC Stock - Get Insider Activity SEC Filing of Centene Corp XNYS:CNC stocks, including company profile, shares outstanding, strategy, business segments, operations, officers, consolidated financial statements, financial notes and ownership information.

XNYS:CNC Centene Corp Insider Activity 4 Filing - 2/29/2012
Name |  Ticker |  Star Rating |  Market Cap |  Stock Type |  Sector |  Industry Star Rating |  Investment Style |  Total Assets |  Category |  Top Holdings |  Top Sectors |  Symbol |  Title Star Rating |  Category |  Total Assets |  Top Holdings |  Top Sectors |  Symbol |  Name Title |  Date |  Author |  Collection |  Interest |  Popularity Topic |  Sector |  Key Indicators |  User Interest |  Market Cap |  Industry Name |  Ticker |  Star Rating |  Market Cap |  Stock Type |  Sector |  Industry Star Rating |  Investment Style |  Total Assets |  Category |  Top Holdings |  Top Sectors |  Symbol / Ticker |  Title Star Rating |  Category |  Total Assets |  Symbol / Ticker |  Name Title |  Date |  Author |  Collection |  Popularity |  Interest Title |  Date |  Company |  Symbol |  Interest |  Popularity Topic |  Sector |  Key Indicators |  User Interest |  Market Cap |  Industry Title |  Date |  Company |  Symbol |  Interest |  Popularity

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