Holding(s) in Company

Catalyst Media Group PLC
24 July 2007




24 July 2007

                            Catalyst Media Group plc
                          ('Catalyst' or 'the Company')
                                        
                               Holding in Company


The Company was notified today, that Gartmore Investment Limited has increased 
its interest to 593,621,235 ordinary shares of 0.1p each in Catalyst ('Ordinary 
Shares'), representing 21.093% of the issued ordinary share capital of the 
Company.


The beneficial owners of the Ordinary Shares are as follows:

Beneficial Owner                                             Number of 
                                                       Ordinary Shares 
                                                                  held
Gartmore Fund Managers Ltd A/C Gartmore UK & Irish          80,923,020
Smaller Companies   
The Gartmore UK Small Cap Best Ideas Fund Limited          123,575,806
Gartmore Smaller Companies Trust Plc                        33,083,843
Gartmore Growth Opportunities Plc                            9,477,706
The Alphagen Volantis Fund Limited                         294,587,085
Strathclyde Pension Fund                                    51,973,775
Total                                                      593,621,235

END




                      This information is provided by RNS
            The company news service from the London Stock Exchange