Sec Form 4 Filing - Lyle W. Roger @ Kior Inc - 2013-03-09

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

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1. Name and Address of Reporting Person Lyle W. Roger 2. Issuer Name and Ticker or Trading Symbol Kior Inc [ KIOR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) SVP of Operations (Last) (First) (Middle) 13001 BAY PARK ROAD 3. Date of Earliest Transaction (MM/DD/YY) 03/09/2013 (Street) PASADENA, TX77057 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 Class A Common Stock 03/09/2012 M( 1 ) 30,108 A $ 0 51,344 D Class A Common Stock 03/12/2013 S( 2 ) 9,246 D $ 5.77 ( 3 ) 42,098 D

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 Restricted Stock Units $ 0 ( 4 ) 03/09/2012 M 30,108 ( 5 ) ( 5 ) Class A Common Stock 30,108 $ 0 60,217 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Lyle W. Roger 13001 BAY PARK ROAD PASADENA, TX77057 SVP of Operations Signatures /s/ Christopher A. Artzer, Attorney-in-Fact 03/14/2013 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents the conversion, upon vesting, of the restricted stock units reported on Table II into Class A Common Stock. On March 9, 2012, the reporting person received 90,325 restricted stock units, of which 1/3, or 30,108 units, vested on March 9, 2013. ( 2 )These sales were effected to satisfy the reporting person's federal income tax obligations with respect to the vesting of the restricted stock units reported on Table II. ( 3 )This price is a weighted average price. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this Form 4. These shares were sold in multiple transactions at prices ranging from $5.72 to $5.806, inclusive. ( 4 )Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of the issuer. ( 5 )The reporting person previously reported the award of 90,325 restricted stock units on its Form 4 filed on March 30, 2012. One-third of the restricted stock units reported in the March 13, 2012 Form 4 vested on March 9, 2013, and the remaining two-thirds will vest in two equal installments on March 9, 2014 and March 9, 2015.

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).

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