Holding(s) in Company

Informa PLC
14 June 2006


                           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.

     540,433

6)   Percentage of issued Class (any treasury shares held by the
     company should not be taken into account when
     calculating percentage)

     0.13%

7)   Number of shares/amount of stock disposed

     N/A

8)   Percentage of issued Class (any treasury shares held by the
     company should not be taken into account when
     calculating percentage)

      N/A

9)   Class of security

      ORDINARY SHARES OF 10 PENCE EACH

10)  Date of transaction

      NOT KNOWN

11)  Date company informed

     14 JUNE 2006

12)  Total holding following this notification

      33,743,245
               
13)  Total percentage holding of issued class following this notification (any 
     treasury shares held by the company should not be taken into account 
     when calculating percentage)

      7.99%

14)  Any additional information

      ISSUED SHARE CAPITAL  = 422,358,137

15)  Name of contact and telephone number for queries

      ANDREA CALLABY   020 7017 4311

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

     Date of Notification ...14 JUNE 2006.........


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for loss of business or loss of profits) arising in contract, tort or otherwise 
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Schedule A                                                         
                                                                   Amendment 17

Security: INFORMA PLC

Current ownership percentage:                    7.99%

Total Shares Held                           33,743,245  

Shares in issue:                           422,358,137

Change in holdings since last filing:         +540,433 ordinary shares



                               MANAGEMENT
                SHARES HELD     COMPANY        NOMINEE/REGISTERED NAME

                 13,479,692       FPM          JP MORGAN, BOURNEMOUTH
                  2,278,209       FPM          NORTHERN TRUST LONDON
                  1,379,202       FPM          BANK OF NEW YORK BRUSSELS
                    895,924       FPM          MELLON BANK
                    216,000       FPM          CITIBANK LONDON
                    100,630       FPM          STATE STR BK AND TR CO LNDN (S
                    147,400       FMTC         STATE STREET BANK AND TR CO
                     43,700       FMTC         BROWN BROTHERS HARRIMAN AND CO
                     33,600       FMTC         JPMORGAN CHASE BANK
                  2,644,900       FMRCO        JPMORGAN CHASE BANK
                  2,603,200       FMRCO        STATE STREET BANK AND TR CO
                    500,000       FMRCO        NORTHERN TRUST CO
                  3,810,949       FISL         JP MORGAN, BOURNEMOUTH
                  2,349,097       FIL          JP MORGAN, BOURNEMOUTH
                    740,670       FIL          BROWN BROS HARRIMN LTD LUX
                    444,082       FIL          BANK OF NEW YORK BRUSSELS
                    240,040       FIL          STATE STR BK AND TR CO LNDN (S
                     32,470       FIL          MORGAN STANLEY LONDON
                  1,803,480       FII          BANK OF NEW YORK EUROPE LDN




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