Holding(s) in Company

1. Identity of the issuer or the underlying issuerof existing shares to which voting rights areattached:

Xchanging Plc

2 Reason for the notification (please tick the appropriate box or boxes):

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

No

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

No

An event changing the breakdown of voting rights

No

Other (please specify):

No

3. Full name of person(s) subject to thenotification obligation:

Ameriprise Financial, Inc. and its group

4. Full name of shareholder(s)  (if different from 3.):

See additional information under 13.

5. Date of the transaction and date onwhich the threshold is crossed orreached:

29 April 2015

6. Date on which issuer notified:

30 April 2015

7. Threshold(s) that is/are crossed orreached:

Above the threshold of 5%

8. Notified details:

A: Voting rights attached to shares

Class/type ofshares

if possible usethe ISIN CODE

Situation previousto the triggeringtransaction

Resulting situation after the triggering transaction

NumberofShares

NumberofVotingRights

Numberof shares

Number of votingrights

Percentage of voting rights

Direct

Direct

Indirect

Direct

Indirect

GB00B1VK7X76

N/A

N/A

286,952

286,952

12,359,557

0.116%

4.995%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate

Exercise/Conversion Period

Number of votingrights that may beacquired if theinstrument isexercised/ converted.

Percentage of voting rights

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

Resulting situation after the triggering transaction

Type of financialinstrument

Exercise price

Expiration date

Exercise/Conversion period

Number of voting rights instrument refers to

Percentage of voting rights

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

12,646,509

5.111%

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

Ameriprise Financial, Inc., which through intermediate holding companies controls the voting rights of Columbia Management Investment Advisers, Columbia Wanger Asset Management, Threadneedle Management Luxembourg S.A. and Threadneedle Asset Management Holdings Ltd, which itself controls the voting rights of Threadneedle Asset Management Ltd, Threadneedle International Ltd and Threadneedle Pensions Ltd.

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:

Registered Owner

14. Contact name:

Mark Powney, Threadneedle Group

15. Contact telephone number:

+44 (0) 1793 363 135