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 *
  Yu Wayne
 2. Date of Event Requiring Statement (Month/Day/Year)
02/08/2006		 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)
Chief Accounting Officer
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

PHOENIX, X1 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 0
D
 

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
Stock Option (Right to Buy) 09/18/2006 09/07/2011 Common Stock, par value $0.01 per share 844 $ 4.8889 D  
Stock Option (Right to Buy) 06/05/2006(1) 08/06/2013 Common Stock, par value $0.01 per share 1,275 $ 8.4445 D  
Stock Option (Right to Buy) 08/07/2006(2) 08/06/2013 Common Stock, par value $0.01 per share 2,250 $ 11.4356 D  
Stock Option (Right to Buy) 03/19/2007(3) 03/18/2014 Common Stock, par value $0.01 per share 2,588 $ 10.5378 D  
Stock Option (Right to Buy) 04/26/2008(4) 04/25/2015 Common Stock, par value $0.01 per share 2,250 $ 14.48 D  
Stock Option (Right to Buy) 11/15/2008(5) 11/14/2015 Common Stock, par value $0.01 per share 2,500 $ 20.0467 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Yu Wayne
5601 WEST BUCKEYE ROAD
PHOENIX, X1 85043		       Chief Accounting Officer  

Signatures

/s/ Wayne Yu 02/17/2006
**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) Mr. Yu holds an option to purchase 1,275 shares, 637 shares will be vested and exercisable on June 5, 2006, with the remaining 638 vested and exercisable as of June 5, 2007.
(2) Mr. Yu was granted 2,250 shares of common stock to be vested annually, in equal installments of 450 shares beginning on August 7, 2006.
(3) Mr. Yu was granted 2,588 shares of common stock, to be vested was follows: two installments of 517 shares on March 19, 2007 and March 19, 2008, with the remaining shares to be vested annual, in equal installments of 518 shares, beginning on March 19, 2009.
(4) Mr. Yu was granted 2,250 shares of common stock to be vested annually, in equal installments of 450 shares beginning on April 26, 2008.
(5) Mr. Yu was granted 2,500 shares of common stock to be vested annually, in equal installments of 750 shares beginning on November 15, 2008.

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