Holding(s) in Company

Rathbone Brothers PLC
28 April 2008


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

+---------------------------------------------+-------------------------------+
|1. Identity of the issuer or the underlying  |     Rathbone Brothers 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                         |   x    |
+--------------------------------------------------------------------+--------+
|An acquisition or disposal of financial instruments which may result|        |
|in the acquisition of shares already issued to which voting rights  |        |
|are attached                                                        |        |
+--------------------------------------------------------------------+--------+
|An event changing the breakdown of voting rights                    |        |
+--------------------------------------------------------------------+--------+
|Other (please specify):                                             |        |
+---------------------------------------------+----------------------+--------+
|3. Full name of person(s) subject to the     |    Prudential plc group of    |
|notification obligation(iii):                |           companies           |
+---------------------------------------------+-------------------------------+
|4. Full name of shareholder(s) (if different |     See attached schedule     |
|from 3.)(iv):                                |                               |
+---------------------------------------------+-------------------------------+
|5. Date of the transaction (and date on which|         24 April 2008         |
|the threshold is crossed or reached if       |                               |
|different)(v):                               |                               |
+---------------------------------------------+-------------------------------+
|6. Date on which issuer notified:            |         28 April 2008         |
+---------------------------------------------+-------------------------------+
|7. Threshold(s) that is/are crossed or       |              3%               |
|reached:                                     |                               |
+---------------------------------------------+-------------------------------+
|8. Notified details:                                                         |
+---------------------------------------------+----------------------+--------+



+--------------------------------------------------------------------------------+
|A: Voting rights attached to shares                                             |
+------------+--------------------+----------------------------------------------+
|Class/type  |Situation previous  |Resulting situation after the triggering      |
|of shares   |to the Triggering   |transaction(vii)                              |
|            |transaction (vi)    |                                              |
|(if possible+---------+----------+----------+-------------------+---------------+
|using the   |Number of|Number of |Number of | Number of voting  |  % of voting  |
|ISIN CODE)  | Shares  |  Voting  |  shares  |     rights ix     |    rights     |
|            |         |  Rights  +----------+----------+--------+------+--------+
|            |         |   viii   |  Direct  | Direct x |Indirect|Direct|Indirect|
|            |         |          |          |          |   xi   |      |        |
+------------+---------+----------+----------+----------+--------+------+--------+
|GB0002148343|Below 3% |Below 3%  |1,293,836 |1,293,836 |        |3.02% |        |
+------------+---------+----------+----------+----------+--------+------+--------+

+------------------------------------------------------------------------------+
|B: Financial Instruments                                                      |
+------------------------------------------------------------------------------+
|Resulting situation after the triggering transaction xii                      |
+---------------+-----------+------------------+-------------------+-----------+
|    Type of    |Expiration |    Exercise/     | Number of voting  |% of voting|
|   financial   | date xiii |Conversion Period/|rights that may be |  rights   |
|  instrument   |           |     Date xiv     |  acquired if the  |           |
|               |           |                  |   instrument is   |           |
|               |           |                  |    exercised/     |           |
|               |           |                  |    converted.     |           |
+---------------+-----------+------------------+-------------------+-----------+
|      N/A      |N/A        |       N/A        |N/A                |N/A        |
+---------------+-----------+------------------+-------------------+-----------+

+-----------------------------------------------------------------------------+
|Total (A+B)                                                                  |
+-------------------------------------+---------------------------------------+
|Number of voting rights              |% of voting rights                     |
+-------------------------------------+---------------------------------------+
|1,293,836                            |3.02%                                  |
+-------------------------------------+---------------------------------------+




+-----------------------------------------------------------------------------+
|                                                                             |
|9. Chain of controlled undertakings through which the voting rights and/or   |
|the financial instruments are effectively held, if applicable xv:            |
+-----------------------------------------------------------------------------+
|Prudential plc (parent Company)                                              |
|                                                                             |
|The Prudential Assurance Company Limited (wholly owned subsidiary of         |
|Prudential plc)                                                              |
+-----------------------------------------------------------------------------+

+-----------------------------------------------------------------------------+
|Proxy Voting:                                                                |
+------------------------------------------------+----------------------------+
|10. Name of the proxy holder:                   |N/A                         |
+------------------------------------------------+----------------------------+
|11. Number of voting rights proxy holder will   |N/A                         |
|cease to hold:                                  |                            |
+------------------------------------------------+----------------------------+
|12. Date on which proxy holder will cease to    |N/A                         |
|hold voting rights:                             |                            |
+------------------------------------------------+----------------------------+

+--------------------------------+--------------------------------------------+
|13. Additional information:     |                                            |
+--------------------------------+--------------------------------------------+
|14. Contact name:               |Emma Thompson                               |
|                                |M&G Investment Management Limited           |
+--------------------------------+--------------------------------------------+
|15. Contact telephone number:   |020 7548 2293                               |
+--------------------------------+--------------------------------------------+











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