Holding(s) in Company

Informa PLC
17 January 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

280,719

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

0.066%

9)   Class of security

ORDINARY SHARES OF 10 PENCE EACH

10)  Date of transaction

NOT KNOWN

11)  Date listed company informed

17 JANUARY 2006

12)  Total holding following this notification

33,501,537
               
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)

7.94%

14)  Any additional information

ISSUED SHARE CAPITAL = 421,719,078

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

ANDREA CALLABY, DEPUTY COMPANY SECRETARY

     Date of Notification ....17 JANUARY 2006....................



Schedule A                                                       Amendment 14

Security: INFORMA PLC

Current ownership percentage:                        7.94%

Total Shares Held                               33,501,537

Shares in issue;                               421,719,078    

Change in holdings since last filing:             (280,719) ordinary shares


                                    MANAGEMENT
                      SHARES HELD    COMPANY      NOMINEE/REGISTERED NAME

                       3,588,967       FPM    NORTHERN TRUST LONDON
                       2,517,002       FPM    JP MORGAN, BOURNEMOUTH
                       2,461,562       FPM    BANK OF NEW YORK BRUSSELS
                         896,524       FPM    MELLON BANK
                         651,970       FPM    STATE STR BK AND TR CO LNDN (S
                         263,000       FPM    CITIBANK LONDON
                         146,604       FPM    CLYDESDALE BANK PLC
                          53,800       FPM    BANK OF NEW YORK EUROPE LDN
                          78,900       FMTC   STATE STREET BANK AND TR CO
                          40,800       FMTC   BROWN BROTHERS HARRIMAN AND CO                                            
                          33,600       FMTC   JPMORGAN CHASE BANK
                       9,855,400      FMRCO   JPMORGAN CHASE BANK
                       1,500,100      FMRCO   STATE STREET BANK AND TR CO
                           9,900      FMRCO   BROWN BROTHERS HARRIMAN AND CO
                       7,593,306       FISL   JP MORGAN, BOURNEMOUTH
                         687,650        FIL   JP MORGAN, BOURNEMOUTTH
                         448,882        FIL   BANK OF NEW YORK BRUSSELS
                         409,970        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







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