Holding(s) in Company

Informa PLC
07 September 2005


                           SCHEDULE 10
 
             NOTIFICATION OF MAJOR INTERESTS IN SHARES


1)   NAME OF COMPANY

     INFORMA PLC


2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

     FMR CORP AND FIDELITY INTERNATIONAL LIMITED


3)   Please state whether notification indicates that it is in respect of 
     holding of the Shareholder named in 2 above or in respect of a 
     non-beneficial interest or in the case of an individual holder if it is a
     holding of that person's spouse or children under the age of 18

     NON-BENEFICIAL


4)   Name of the registered holder(s) and, if more than one holder, the 
     number of shares held by each of them.

     SEE BELOW


5)   Number of shares/amount of stock acquired.

     504,700


6)   Percentage of issued Class

     0.12%

7)   Number of shares/amount of stock disposed

     N/A

8)   Percentage of issued Class

     N/A

9)   Class of security

     ORDINARY SHARES OF 10 PENCE EACH


10)  Date of transaction

     NOT KNOWN


11)  Date company informed

     6 SEPTEMBER 2005


12)  Total holding following this notification

     25,285,823

               
13)  Total percentage holding of issued class following this notification

     6.00%


14)  Any additional information

     ISSUED SHARE CAPITAL - 421,108,929


15)  Name of contact and telephone number for queries

     SONIA RICHMOND
     020 7017 4314


16)  Name and signature of authorised company official responsible for 
     making this notification


     Date of Notification     7 SEPTEMBER 2005

SCHEDULE A                                                             AMENDMENT

SECURITY:  INFORMA PLC

Current ownership percentage:                    6.00%

Total Shares Held                                25,285,823

Shares in issue:                                 421,108,929

Change in holdings since last filing:            +504,700 ordinary shares

                     SHARES HELD         MANAGEMENT     NOMINEE/REGISTERED
                                            COMPANY     NAME

                       2,573,037                FPM     NORTHERN TRUST LONDON

                       1,823,202                FPM     JP MORGAN BOURNEMOUTH

                       1,803,262                FPM     BANK OF NEW YORK BRUSSELS

                         806,224                FPM     MELLON BANK

                         494,970                FPM     STATE STR BK AND TR CO LNDN (S

                         126,004                FPM     CLYDESDALE BANK PLC

                           9,900                FMTC    STATE STREET BANK AND TR CO

                       7,287,100                FMRCO   JP MORGAN CHASE BANK

                       2,303,100                FMRCO   STATE STREET BANK AND TR CO

                          12,200                FMRCO   NORTHERN TRUST CO

                           9,900                FMRCO   BROWN BROTHERS HARRIMAN AND CO

                       4,792,509                FISL    JP MORGAN BOURNEMOUTH

                         437,763                FIL     BROWN BROS HARRIMN LTD LUX

                         414,150                FIL     JP MORGAN BOURNEMOUTH

                         362,082                FIL     BANK OF NEW YORK BRUSSELS

                          75,740                FIL     STATE STR BK AND TR CO LNDN (S

                       1,954,680                FIL     BANK OF NEW YORK EUROPE LDN

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