Dynamex Inc.
 
 
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
Schedule 13G/A
INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO
RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED
PURSUANT TO RULE 13d-2
(AMENDMENT NO. 3)
Dynamex Inc.
 
(Name of Issuer)
Common Stock, $.01 Par Value
 
(Title of Class of Securities)
26784F103
 
(CUSIP Number)
July 31, 2008
 
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
     o      Rule 13d-1(b)
     þ      Rule 13d-1(c)
     o      Rule 13d-1(d)
 
 

 

                     
CUSIP No.
  
26784F103 
 13G Page  
2 
   of   
5 Pages 

 

           
1   NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Thomas F. Frist III
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
  (a)   o
  (b)   o
     
3   SEC USE ONLY
   
   
     
4   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  United States of America
       
  5   SOLE VOTING POWER
     
NUMBER OF   800,000
       
SHARES 6   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   0
       
EACH 7   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   800,000
       
WITH 8   SHARED DISPOSITIVE POWER
     
    0
     
9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  800,000
     
10   CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
   
  (a)  o
     
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
   
  7.9%
     
12   TYPE OF REPORTING PERSON*
   
  IN

 

                     
CUSIP No.
  
26784F103 
 13G Page  
3 
   of   
5 Pages 
         
Item 1(a).
  Name of Issuer:   Dynamex Inc.
Item 1(b).
  Address of Issuer’s Principal Executive Offices:   1870 Crown Drive
 
      Dallas, TX 75234
Item 2(a).
  Name of Person Filing:   See Item 1 of page 2
Item 2(b).
  Address of Principal Business Office or, if none, Residence:   3100 West End Avenue, Suite 500
Nashville, TN 37203
Item 2(c).
  Organization/Citizenship:   See Item 4 of page 2
Item 2(d).
  Title of Class Of Securities:   common stock, $.01 par value
Item 2(e).
  CUSIP Number:   26784F103
Item 3.
  Inapplicable.    
 
Item 4.
  Ownership.    
                                                 
    Total Shares                                
    of                                
    Common                           Sole   Shared
    Stock   Percent   Sole   Shared   Power   Power
    Beneficially   of   Voting   Voting   to   to
             Person   Owned(1)   Class(2)   Power   Power   Dispose   Dispose
Thomas F. Frist III
    800,000       7.9 %     800,000       0       800,000       0  
 
(1)   Includes share transactions by Mr. Frist through July 31, 2008.
 
(2)   Based on 10,157,675 shares of Common Stock outstanding as of May 31, 2008 as reported on the Company’s quarterly report on Form 10-Q for the quarter ended April 30, 2008 filed with the Commission on June 8, 2008.

 

 

                     
CUSIP No.
  
26784F103 
 13G Page  
4 
   of   
5 Pages 
Item 5.   Ownership of Five Percent or Less of a Class.
     Inapplicable
Item 6.   Ownership of More than Five Percent on Behalf of Another Person.
     Inapplicable
Item 7.   Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company.
     Inapplicable
Item 8.   Identification and Classification of Members of the Group.
     Inapplicable
Item 9.   Notice of Dissolution of Group.
     Inapplicable
Item 10.   Certification.
     By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

 

 

                     
CUSIP No.
  
26784F103 
 13G Page  
5 
   of   
5 Pages 
SIGNATURE
     After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
July 31, 2008                                        
Date
/s/ Thomas F. Frist III                                        
(Signature)
Thomas F. Frist III                                        
(Name/Title)