Holding(s) in Company

Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:

Informa Plc

An acquisition or disposal of voting rights	Yes
An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached.
An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments
An event changing the breakdown of voting rights
Other (please specify):

3. Full name of person(s) subject to the notification obligation:	AXA SA, 25 Avenue Matignon, 75008 Paris, and its group of companies
4. Full name of shareholder(s) (if different from 3.):
5. Date of the transaction and date on which the threshold is crossed or reached:	16 June 2011
6. Date on which issuer notified:	17 June 2011
7. Threshold(s) that is/are crossed or reached:	5%

8. Notified details:

A: Voting rights attached to shares

Class/type of shares if possible usingthe ISIN CODE
Ordinary GBP0.001

Situation previous to the triggering transaction

Number of Shares	Number of Voting Rights
29,501,627 29,501,627

Resulting situation after the triggering transaction

Number of voting rights

% of voting rights

Number of shares	Direct	Indirect	Direct	Indirect
874,950	874,950	29,618,913	0.15%	4.93%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument	Expiration Date	Exercise/ Conversion Period

Number of voting rights that may be acquired if the instrument is exercised/ converted.	% of voting rights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument	Exercise price	Expiration date

Exercise/Conversion period	Number of voting rights instrument refers to

% of voting rights

Nominal	Delta

Total (A+B+C)

Number of voting rights	Percentage of voting rights
30,493,863	5.07%

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:

Name of Company/Fund	Number of Shares	% of issued share capital
Alliance Capital Management (Indirect)	1,737,436	0.289036
AXA (Direct)	814,950	0.135573
AXA Financial Inc (Indirect)	20,616,777	3.429765
AXA IM UK (Direct)	60,000	0.009981
AXA IM UK (Indirect)	7,264,700	1.208541

Proxy Voting:

10. Name of the proxy holder:	N/A
11. Number of voting rights proxy holder will cease to hold:	N/A
12. Date on which proxy holder will cease to hold voting rights:	N/A
13. Additional information:	Notification using the total voting rights figure of 601,113,429
14. Contact name:	Dimitrios Tsamis
15. Contact telephone number:	020 7003 2806

Annex: Notification of major interests in shares

A: Identity of the persons or legal entity subject to the notification obligation

Full name (including legal form of legal entities)	INFORMA PLC
Contact address (registered office for legal entities)	22 Grenville Street, St Helier, Jersey JE4 8PX
Phone number & email	020 7017 4314 [e-mail]
Other useful information (at least legal representative for legal persons)	Emily Martin Interim Deputy Company Secretary

B: Identity of the notifier, if applicable

Full name
Contact address
Phone number & email
Other useful information (e.g. functional relationship with the person or legal entity subject to the notification obligation)

C: Additional information

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Provider		Channel		Contact
Tensid Ltd., Switzerland www.tensid.ch		newsbox.ch www.newsbox.ch		Provider/Channel related enquiries [e-mail] [phone]