Holding(s) in Company

For filings with the FSA include the annex For filings with issuer exclude the annex TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi

1. Identity of the issuer or the underlying Reckitt Benckiser Group plc issuer of existing shares to which voting

rights are attached: ii

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

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 Massachusetts Financial Services Company the notification obligation: iii

4. Full name of shareholder(s) (if MFS invests in securities of the issuer different from 3.):iv

on behalf of its various mutual funds and institutional account clients. 5. Date of the transaction and date 15 January 2013 on which the threshold is crossed or reached: v 6. Date on which issuer notified: 16 January 2013 7. Threshold(s) that is/are crossed 5% or reached: vi, vii 8. Notified details:A: Voting rights attached to shares viii, ixClass/type of Situation previous Resulting situation after shares to the triggering the triggering transaction transaction if possible Number Number Number Number of % of voting using of of of voting rights x the ISIN CODE Shares Voting shares rights Rights Direct Direct Indirect Direct Indirect xi xii GB00B24CGK77 35,905,014 35,905,014 35,974,048 5% B: Qualifying Financial Instruments Resulting situation after the triggering transaction Type of financial Expiration Exercise/ Number of voting % of voting instrument date xiii Conversion Period rights that may be rights xiv acquired if the instrument is exercised/ converted.

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financ Exercise Expiration Exercise/ Number of voting % of voting

ial price date xvii Conversion rights instrument rights xix, xx instrument period refers to xviii Nominal Delta Total (A+B+C) Number of voting rights Percentage of voting rights 35,974,048 5%

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

Reckitt Benckiser plc - B24CGK7 Holdings as of 15 January 2013 Entity Voting Rights Held Percentage Held MFS Investment Management (LUX) S.A. (LUX) 2,118,162 0.2945% MFS McLean Budden (MB) 605,186 0.0841% MFS Investment Management (MFS) 12,511,169 1.7395% MFS Heritage Trust Company (MFSHE) 717,945 0.0998% MFS Institutional Advisors, Inc. (MFSI) 9,918,166 1.3790% MFS International Ltd. (MIL) 940,079 0.1307% MFS International (U.K.) Ltd. (MILUK) 6,119,335 0.8508% MFS Investment Management K.K. (MIMKK) 3,044,005 0.4232% Notifiable Interest 35,974,048 5.0018% Voting Rights Outstanding 719,219,114 Proxy Voting: 10. Name of the proxy holder: n/a 11. Number of voting rights proxy n/a holder will cease to hold: 12. Date on which proxy holder will n/a cease to hold voting rights: 13. Additional information: 14. Contact name: 15. Contact telephone number: Note: Annex should only be submitted to the FSA not the issuer Annex: Notification of major interests in sharesxxii

A: Identity of the persons or legal entity subject to the notificationobligation

Full name Massachusetts Financial Services Co. (including legal form of legal entities) Contact address 111 Huntington Avenue (registered office for legal entities) Boston, MA 02199 USA Phone number & email 617-954-5814 Other useful information Robert Flaherty (at least legal representative for legal persons)

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

For notes on how to complete form TR-1 please see the FSA website.