Holding(s) in Company

Informa PLC
02 June 2006



             NOTIFICATION OF MAJOR INTERESTS IN SHARES


1)   NAME OF LISTED 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 
     regarding the holding of the shareholder named in 2 above;
     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.

     N/A


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

     N/A


7)   Number of shares/amount of stock disposed

     1,662,993


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

     0.39%


9)   Class of security

     ORDINARY SHARES OF 10 PENCE EACH


10)  Date of transaction

     NOT KNOWN


11)  Date listed company informed

     2 JUNE 2006

12)  Total holding following this notification

     33,202,812

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

      7.86%


14)  Any additional information

     ISSUED SHARE CAPITAL = 422,349,737


15)  Name of contact and telephone number for queries

     ANDREA CALLABY 020 7017 4311


16)  Name and signature of duly authorised officer of the listed company
     responsible for making this notification

     JEFF THOMASSON, COMPANY SECRETARY


     Date of Notification .................  2 JUNE 2006


Schedule A                                                         
                                                                   Amendment 16

Security: INFORMA PLC

Current ownership percentage:                    7.86%

Total Shares Held                           33,202,812  

Shares in issue:                           422,349,737

Change in holdings since last filing:       (1,662,993) ordinary shares



                               MANAGEMENT
                SHARES HELD     COMPANY        NOMINEE/REGISTERED NAME

                 12,549,342       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
                    148,600       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
                    524,680       FMRCO        NORTHERN TRUST CO
                  3,949,429       FISL         JP MORGAN, BOURNEMOUTH
                  2,574,654       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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