Schedule 13G





Washington, D.C. 20549




Under the Securities Exchange Act of 1934

(Amendment No.         )*



Kirby Corporation

(Name of Issuer)



Common Stock

(Title of Class of Securities)


(CUSIP Number)

December 18, 2009

(Date of Event Which Requires Filing of this Statement)



Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

¨ Rule 13d-1(b)

x Rule 13d-1(c)

¨ Rule 13d-1(d)


*   The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).





CUSIP No. 497266106



Names of Reporting Persons.


I.R.S. Identification Nos. of above persons (entities only).


         Araltec, S.L.


Check the Appropriate Box if a Member of a Group (See Instructions)

        (a)  ¨

        (b)  ¨



SEC Use Only



Citizenship or Place of Organization


        Kingdom of Spain

Number of



Owned by






Sole Voting Power




Shared Voting Power


        Not applicable


Sole Dispositive Power




Shared Dispositive Power


        Not applicable



Aggregate Amount Beneficially Owned by Each Reporting Person





Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)  ¨




Percent of Class Represented by Amount in Row (9)





Type of Reporting Person (See Instructions)





Item 1.  


   Name of Issuer      
     Kirby Corporation      


   Address of Issuer’s Principal Executive Offices      
     55 Waugh Drive, Suite 1000      
     Houston, Texas 77007      
Item 2.  


   Name of Person Filing      
     Araltec, S.L.      


   Address of Principal Business Office or, if none, Residence      
     Calle Santisima Trinidad, 2      
     Madrid, Spain 28010      


     Kingdom of Spain      


   Title of Class of Securities      
     Common Stock      


   CUSIP Number      
Item 3.   If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
  (a)    ¨    Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o)
  (b)    ¨    Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c)
  (c)    ¨    Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c)
  (d)    ¨    Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8)
  (e)    ¨    An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E)
  (f)    ¨    An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F)
  (g)    ¨    A parent holding company or control person in accordance with §240.13d-1(b)(1)(ii)(G)
  (h)    ¨    A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813)
  (i)    ¨    A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (I5 U.S.C. 80a-3)
  (j)    ¨    A non-U.S. institution in accordance with §240.13d–1(b)(1)(ii)(J)
  (k)    ¨    Group, in accordance with §240.13d–1(b)(1)(ii)(K). If filing as a non-U.S. institution in accordance with §240.13d–1(b)(1)(ii)(J), please specify the type of institution:             



Item 4.    Ownership      

Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.

   (a)    Amount beneficially owned:        2,990,190      
   (b)    Percent of class:        5.56%      
   (c)    Number of shares as to which the person has:      
      (i)    Sole power to vote or to direct the vote        2,990,190      
      (ii)    Shared power to vote or to direct the vote        Not applicable      
      (iii)    Sole power to dispose or to direct the disposition of        2,990,190      
      (iv)    Shared power to dispose or to direct the disposition of        Not applicable      
Item 5.    Ownership of Five Percent or Less of a Class   

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following ¨

Item 6.    Ownership of More than Five Percent on Behalf of Another Person      

Not applicable.

Item 7.    Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company

Not applicable.

Item 8.    Identification and Classification of Members of the Group      

Not applicable.

Item 9.    Notice of Dissolution of Group      

Not applicable.

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.





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.


December 23, 2009





José Lladó Fernández-Urrutia/Chairman of the Board and Managing Director