Holding in Company

INFORMA GROUP PLC


                    DEALINGS BY SUBSTANTIAL SHAREHOLDERS

1)  NAME OF COMPANY

INFORMA GROUP PLC

2)  NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

HENDERSON INVESTORS 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

AS 2 ABOVE

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

AS 2 ABOVE

5)  Number of shares/amount of stock acquired.

N/A

6)  ( N/A %) of issued Class

7)  Number of shares/amount of stock disposed

386,700

8)  (0.33%) of issued Class

9)  Class of security

ORDINARY SHARES OF 10 PENCE EACH

10) Date of transaction

18-8-99

11) Date company informed

24-08-99

12) Total holding following this notification

18,474,615

13) Total percentage holding of issued class following this notification

15.86%

14) Any additional information

ISSUED SHARE CAPITAL IS 116,485,186 AS AT 25.8.99

15) Name of contact and telephone number for queries

DAVID LODGE - 0171 453 5972

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

    Date of Notification...26 AUGUST 1999.......