Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  Knight Larry
2. Date of Event Requiring Statement (Month/Day/Year)
02/26/2009
3. Issuer Name and Ticker or Trading Symbol
KNIGHT TRANSPORTATION INC [KNX]
(Last)
(First)
(Middle)
5601 WEST BUCKEYE ROAD
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Pres. Knight Intermodal, LLC
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

PHOENIX, AZ 85043
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 Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock, par value $0.01 per share 9,809
D (1)
 
Common Stock, par value $0.01 per share 4,526
I
401(k) Plan

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Common Stock, par value $0.01 per share 03/09/2009(2) 10/12/2010 Common Stock 7,688 (2) $ 2.85 D  
Common Stock, par value $0.01 per share 03/09/2009(3) 09/17/2011 Common Stock 16,875 (3) $ 4.8889 D  
Common Stock, par value $0.01 per share 03/09/2009(4) 06/04/2012 Common Stock 9,000 (4) $ 8.4445 D  
Common Stock, par value $0.01 per share 03/09/2009(5) 08/06/2013 Common Stock 11,250 (5) $ 11.4356 D  
Common Stock, par value $0.01 per share 03/09/2009(6) 03/18/2014 Common Stock 11,250 $ 10.5378 (6) D  
Common Stock, par value $0.01 per share 03/09/2009(7) 04/25/2015 Common Stock 11,250 (7) $ 14.48 D  
Common Stock, par value $0.01 per share 05/18/2009(8) 05/17/2016 Common Stock 8,000 (8) $ 18.75 D  
Common Stock, par value $0.01 per share 05/25/2010(9) 05/24/2017 Common Stock 7,500 (9) $ 18.2 D  
Common Stock, par value $0.01 per share 02/28/2011(10) 02/27/2018 Common Stock 2,632 (10) $ 14.79 D  
Common Stock, par value $0.01 per share 02/28/2011(11) 02/27/2018 Common Stock 7,368 (11) $ 14.79 D  
Common Stock, par value $0.01 per share 05/22/2011(12) 05/21/2018 Common Stock 3,742 (12) $ 17.29 D  
Common Stock, par value $0.01 per share 05/22/2013(13) 05/21/2018 Common Stock 3,758 (13) $ 17.29 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Knight Larry
5601 WEST BUCKEYE ROAD
PHOENIX, AZ 85043
      Pres. Knight Intermodal, LLC  

Signatures

/s/ Larry Knight 03/09/2009
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) 140 shares of stock are held by Larry V. Knight, as Custodian FBO Dallen D. Gardner; 140 shares of stock are held by Larry V. Knight, as Custodian FBO Bobbi K. Knight; 140 shares of stock are held by Larry V. Knight, as Custodian FBO Beau C. Gardner.
(2) Mr. Knight was granted an option to purchase 15,188 shares of stock at the grant price of $2.85 per share on October 13, 2000, of which 7,500 shares have been exercised and 7,688 shares are vested and exercisable.
(3) Mr. Knight was granted an option to purchase 16,875 shares of stock at the grant price of $4.8889 per share on September 18, 2001, of which 16,875 shares are vested and exercisable.
(4) Mr. Knight was granted an option to purchase 9,000 shares of stock at the grant price of $8.4445 per share on June 5, 2002, of which 9,000 shares are vested and exercisable.
(5) Mr. Knight was granted an option to purchase 11,250 shares of stock at the grant price of $11.4356 per share on August 7, 2003, of which 6,750 shares are vested and exercisable and the remaining shares shall vest as follows: 2,250 shares annually beginning on August 7, 2009, until fully vested
(6) Mr. Knight was granted an option to purchase 11,250 shares of stock at the grant price of $10.5378 per share on March 19, 2004, of which 4,500 shares are vested and exercisable and the remaining shares shall vest as follows: 2,250 shares annually beginning on March 19, 2009, until fully vested
(7) Mr. Knight was granted an option to purchase 11,250 shares of stock at the grant price of $14.48 per share on April 26, 2005, of which 2,250 shares are vested and exercisable and the remaining shares shall vest as follows: 2,250 shares annually beginning on April 26, 2009, until fully vested
(8) Mr. Knight was granted an option to purchase 8,000 shares of stock at the grant price of $18.75 per share on May 18, 2006, to vest as follows: 1,600 annually beginning on May 18, 2009, until fully vested.
(9) Mr. Knight was granted an option to purchase 7,500 shares of stock at the grant price of $18.20 per share on May 25, 2007, to vest as follows: 1,500 annually beginning on May 25, 2010, until fully vested
(10) Mr. Knight was granted an option to purchase 2,632 shares of stock at the grant price of $14.79 per share on February 29, 2008, to vest as follows: 1,316 shares on February 28, 2011 and 1,316 shares on February 29, 2012
(11) Mr. Knight was granted an option to purchase 7,368 shares of stock at the grant price of $14.79 per share on February 29, 2008, to vest as follows: 684 shares on February 28, 2011, 684 shares on February 29, 2012 and 2,000 shares annually beginning on February 28, 2013 until fully vested
(12) Mr. Knight was granted an option to purchase 3,742 shares of stock at the grant price of $17.29 per share on May 22, 2008, to vest as follows: 1,500 shares on May 22, 2011, 1,500 shares on May 22, 2012 and 742 shares on May 22, 2013
(13) Mr. Knight was granted an option to purchase 3,758 shares of stock at the grant price of $17.29 per share on May 22, 2008 to vest as follows: 758 shares on May 22, 2013 and 1,500 annually beginning on May 22, 2014 until fully vested

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