Form 6-K
 

SECURITIES AND EXCHANGE COMMISSION 
Washington, D.C. 20549 

Form 6-K 
Report of Foreign Issuer
Pursuant to Rule 13a-16 or 15d-16 of
the Securities Exchange Act of 1934 
For the month of December, 2006

CIBA SPECIALTY CHEMICALS HOLDING INC. 

(Exact name of Registrant as specified in its charter)
Klybeckstrasse 141
4002 Basel
Switzerland
(Address of principal executive offices)

     (Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.)
 
Form 20-F þ  Form 40-F o
 
     (Indicate by check mark whether by furnishing the information contained in this Form, the Registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2 (b) under the Securities Exchange Act of 1934.)
 
Yes o   No þ
 
     (If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2 (b))
 
 


 


CIBA SPECIALTY CHEMICALS HOLDING INC.

On December 7, 2006, Ciba Specialty Chemicals Holding Inc., a stock corporation organized under the laws of Switzerland, issued a Disclosure of Participations giving notice of Franklin Resources, Inc.'s shareholder participation in the company as of December 4, 2006. A copy of the Disclosure of Participations is attached as Exhibit 99.1 and incorporated by reference herein.
 

 



 
 
 
EXHIBIT LIST 
 
 
 
Exhibit
 
Description
     
99.1
 
Disclosure of Participations dated December 7, 2006
 
 
 



 

 
SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
 
 
 
           
Ciba Specialty Chemicals Holding Inc.
  
         
(Registrant)
      
                 
                 
 Date  December 8, 2006    By  
/s/ Daniel Petitpierre
  
/s/ Beat Saxer
  
                 
         
Daniel Petitpierre
Head Corporate Law
 
Beat Saxer
Head Taxes Switzerland