Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi

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

Rathbone Brothers PLC

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

An acquisition or disposal of voting rights

X

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: iii

Mawer Investment Management Ltd. as Portfolio Manager for shareholders listed below.

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

Mawer World Investment Fund

Manulife Mawer World Seg Fund

Mawer Canadian Diversified Investment Fund

Manulife Mawer Diversified Investment Fund

C&MA Foreign Equity Fund

Counsel International Growth Fund

Counsel Wealth Management

Manulife Mawer World Investment Class Fund

Mawer Global Small Cap Fund

Manulife Mawer Global Small Cap Fund

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

October 8, 2009

6. Date on which issuer notified:

October 13, 2009

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

3% ownership

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type of shares

if possible using the ISIN CODE

Situation previous to the triggering transaction

Resulting situation after the triggering transaction

Number of Shares

Number of Voting Rights

Number of shares

Number of voting rights

% of voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

GB000214834

1,285,083

2.977%

1,344,818

3.12%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date xiii

Exercise/  Conversion Period xiv

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

% of voting rights

n/a

n/a

n/a

n/a

n/a

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

Resulting situation after the triggering transaction

Type of financial instrument

Exercise price

Expiration date xvii

Exercise/ Conversion period xviii

Number of voting rights instrument refers to

% of voting rights xix, xx

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

1,344,818

3.12%

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

Mawer World Investment Fund - 698,665 shares of Rathbone Brothers PLC (RAT) or 1.62%

Manulife Mawer World Seg Fund - 299,985 shares of RAT or .69%

Mawer Canadian Diversified Investment Fund - 18,973 shares of Rathbone Brothers PLC (RAT) or 0.044%

Manulife Mawer Diversified Investment Fund - 35,262 shares of Rathbone Brothers PLC (RAT) or 0.0817%

C&MA Foreign Equity Fund - 5,421 shares of Rathbone Brothers PLC (RAT) or 0.0126%

Counsel International Growth Fund - 106,985 shares of Rathbone Brothers PLC (RAT) or 0.2478%

Counsel Wealth Management - 9,415 shares of Rathbone Brothers PLC (RAT) or 0.0218%

Manulife Mawer World Investment Class Fund - 167,722 shares of RAT or 0.3885%

Mawer Global Small Cap Fund - 1,700 shares of Rathbone Brothers PLC (RAT) or 0.0039%

Manulife Mawer Global Small Cap Fund - 700 shares of Rathbone Brothers PLC (RAT) or 0.0016%

Proxy Voting:

10. Name of the proxy holder:

Mawer Investment Management Ltd.

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:

Mawer Investment Management Ltd.

14. Contact name:

Richard Loader 

(Rathbone Brothers Plc)

15. Contact telephone number:

020 7399 0000