Holding(s) in Company

Informa PLC
05 January 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.

      3,338,323

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

      0.79%

7)   Number of shares/amount of stock disposed

      N/A

8)   Percentage of issued Class
     (any treasury shares held by the listed 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

     4 JANUARY 2006

12)  Total holding following this notification

      33,782,256
               
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)

      8.01%

14)  Any additional information

      ISSUED SHARE CAPITAL  =  421,597,956

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 ....5 JANUARY 2006.....


The FSA does not give any express or implied warranty as to the accuracy of this
document or material and does not accept any liability for error or omission.
The FSA is not liable for any damages (including, without limitation, damages
for loss of business or loss of profits) arising in contract, tort or otherwise
from the use of or inability to use this document, or any material contained in
it, or from any action or decision taken as a result of using this document or
any such material.


Schedule A                                                       Amendment 13

Security; INFORMA PLC

Current ownership percentage:                        8.01%

Total Shares Held                               33,782,256

Shares in issue;                                 421,597,962    

Change in holdings since last filing:          +3,338,323 ordinary shares


                                    MANAGEMENT
                      SHARES HELD    COMPANY      NOMINEE/REGISTERED NAME

                       3,595,467       FPM    NORTHERN TRUST LONDON
                       2,517,002       FPM    JP MORGAN, BOURNEMOUTH
                       2,452,762       FPM    BANK OF NEW YORK BRUSSELS
                         888,424       FPM    MELLON BANK
                         651,970       FPM    STATE STR BK AND TR CO LNDN (S
                         263,000       FPM    CITIBANK LONDON
                         146,604       FPM    CLYDESDALE SANK PLC
                          53,800       FPM    BANK OF NEW YORK EUROPE LDN
                          73,000       FMTC   STATE STREET BANK AND TR CO
                          31,400       FMTC   BROWN BROTHERS HARRIMAN AND CO                                            
                          25,600       FMTC   JPMORGAN CHASE BANK
                      10,449,119      FMRCO   JPMORGAN CHASE BANK
                       1,500,100      FMRCO   STATE STREET SANK AND TR CO
                           9,900      FMRCO   BROWN BROTHERS HARRIMAN AND CO
                       7,511,506      FISL    JP MORGAN, BOURNEMOUTH
                         534,050       FIL    JP MORGAN, BOURNEMOUTTH
                         448,882       FIL    BANK OF NEW YORK BRUSSELS
                         366,070       FIL    BROWN BROS HARRIMN LTD LUX
                         186,240       FIL    STATE STR BK AND TR CO LNDN (S
                          55,780       FIL    MORGAN STANLEY LONDON
                       2,021,580       FII    BANK OF NEW YORK EUROPE LDN




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