Holding(s) in Company

RM PLC
26 February 2007



TR-1(i): NOTIFICATION OF MAJOR INTERESTS IN SHARES



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

RM plc



2. Reason for the notification (please state Yes/No):



An acquisition or disposal of voting rights: (No)



An acquisition or disposal of financial instruments which may result in the
acquisition of shares already issued to which voting rights are attached: (No)



An event changing the breakdown of voting rights: (No)



Other (please specify): EU Transparency Directive



3. Full name of person(s) subject to the notification obligation (iii):

Ameriprise Financial, Inc. and its group



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

See additional information under 13.



5. Date of the transaction (and date on which the threshold is crossed or
reached if different) (v):

N/A



6. Date on which issuer notified:

22 February 2007



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

N/A



8. Notified details:

N/A





A: Voting rights attached to shares


Class/type of shares if possible           Situation previous to the Triggering transaction (vi)
using the ISIN CODE
                                  Number of shares                   Number of voting Rights (viii)


Ordinary shares                   N/A                                N/A

GB0002870417





Resulting situation after the triggering transaction (vii)


Class/type of shares if      Number of shares         Number of voting rights (ix)      % of voting rights
possible using the ISIN CODE
                             Direct                   Direct (x)   Indirect (xi)        Direct      Indirect


Ordinary shares              409,000                  409,000      5,105,282            0.443%      5.530%
GB0002870417



B: Financial Instruments

Resulting situation after the triggering transaction (xii)


Type of         Expiration Date       Exercise/Conversion       Number of voting rights     % of voting rights
financial       (xiii)                Period/ Date (xiv)        that may be acquired if the
instrument                                                      instrument is exercised/
                                                                converted.

N/A             N/A                   N/A                       N/A                         N/A





Total (A+B)
Number of voting rights        % of voting rights


5,514,282                      5.973%



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

Ameriprise Financial, Inc., which controls the voting rights of



Threadneedle Asset Management Holdings Ltd, which 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:


                                                        No of shares
Littledown Nominees Ltd            A/c 05577                 156,000
Littledown Nominees Ltd            A/c 10489               1,168,282
Littledown Nominees Ltd            A/c 10488                 830,000
Littledown Nominees Ltd            A/c 34789                 327,000
Littledown Nominees Ltd            A/c 21667                  95,000
Littledown Nominees Ltd            A/c 07203                 160,000
Littledown Nominees Ltd            A/c 10479                   4,000
Littledown Nominees Ltd            A/c 07197                 409,000
Littledown Nominees Ltd            A/c 05576               2,365,000



14. Contact name:

Company Secretary, Threadneedle group



15. Contact telephone number:

0207 464 5000




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