Holding(s) in Company

Renishaw PLC
21 February 2008


Form TR-1 with annex. FSA Version 2.1 updated April 2007

+----------------------------------------+
|For filings with the FSA include the    |
|annex                                   |
|                                        |
|For filings with issuer exclude the     |
|annex                                   |
+----------------------------------------+

+-----------------------------------------------------------------------------+
|TR-1: Notifications of Major Interests in Shares                             |
+-----------------------------------------------------------------------------+

+-----------------------------------------------+-------------------------------+
|                                               |                               |
|                                               |                               |
|1. Identity of the issuer or the underlying    |                               |
|issuer of existing shares to which voting      |           Renishaw plc        |
|rights are attached:                           |                               |
+-----------------------------------------------+-------------------------------+
|                                                                               |
|                                                                               |
|2. Reason for notification (yes/no)                                            |
+--------------------------------------------------------------------+----------+
|                                                                    |          |
|                                                                    |   Yes    |
|An acquisition or disposal of voting rights                         |          |
+--------------------------------------------------------------------+----------+
|                                                                    |          |
|                                                                    |          |
|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   |   Newton Investment Management        |
|notification obligation:               |                                       |
+---------------------------------------+---------------------------------------+
|                                       |                                       |
|                                       |                                       |
|4. Full name of shareholder(s) (if     |                                       |
|different from 3):                     |                                       |
+---------------------------------------+---------------------------------------+
|                                       |                                       |
|                                       |                                       |
|5. Date of transaction (and date on    |   19/02/08                            |
|which the threshold is crossed or      |                                       |
|reached if different):                 |                                       |
+---------------------------------------+---------------------------------------+
|                                       |                                       |
|                                       |   20/02/08                            |
|6. Date on which issuer notified:      |                                       |
+---------------------------------------+---------------------------------------+
|                                       |                                       |
|                                       |                                       |
|7. Threshold(s) that is/are crossed or |   decreased from 3.03% to 2.99%       |
|reached:                               |                                       |
+---------------------------------------+-------+--------------------+----------+






+----------------------------------------------------------------------------------+
|8: Notified Details                                 Sale of 28,328 shares         |
+----------------------------------------------------------------------------------+
|A: Voting rights attached to shares                                               |
|                                                                                  |
|                                                                                  |
+---------+-------------------+----------------------------------------------------+
|Class/   |Situation previous |Resulting situation after the triggering transaction|
|type of  |to the triggering  |                                                    |
|shares   |transaction        |                                                    |
|         +---------+---------+---------+--------------------+---------------------+
|If       |Number of|Number of|Number of|Number of voting    |Percentage of voting |
|possible |shares   |voting   |shares   |rights              |rights               |
|use ISIN |         |rights   |         +---------+----------+----------+----------+
|code     |         |         |         |         |          |          |          |
|         |         |         |         |         |          |          |          |
|         |         |         |         |Direct   |Indirect  |Direct    |Indirect  |
+---------+---------+---------+---------+---------+----------+----------+----------+
|                                                                                  |
|GB0007323586    2,208137    3.03%    N/A    N/A    2179809    N/A    2.99%        |
|                                                                                  |
+---------+---------+---------+---------+---------+----------+----------+----------+


+--------------------------------------------------------------------------------+
|B: Financial Instruments                                                        |
|                                                                                |
|                                                                                |
+--------------------------------------------------------------------------------+
|Resulting situation after the triggering transaction                            |
|                                                                                |
|                                                                                |
+---------------+---------------+---------------+----------------+---------------+
|Type of        |Expiration date|Exercise/      |No. of voting   |Percentage of  |
|financial      |               |conversion     |rights that may |voting rights  |
|instrument     |               |period/date    |be acquired (if |               |
|               |               |               |the instrument  |               |
|               |               |               |exercised/      |               |
|               |               |               |converted)      |               |
+---------------+---------------+---------------+----------------+---------------+
|               |               |               |                |               |
|               |               |               |                |               |
|               |               |               |                |               |
+---------------+---------------+---------------+----------------+---------------+



+-----------------------------------------------------------------------------+
|Total (A+B)                                                                  |
|                                                                             |
|                                                                             |
+--------------------------------------+--------------------------------------+
|Number of voting rights               |Percentage of voting rights           |
+--------------------------------------+--------------------------------------+
|       2179809                        |      2.99%                           |
+--------------------------------------+--------------------------------------+







+-----------------------------------------------------------------------------+
|9. Chain of controlled undertakings through which the voting rights and /or  |
|the financial instruments are effectively held, if applicable:               |
+-----------------------------------------------------------------------------+
| Newton Investment Management hold these shares as discretionary investment  |
| managers                                                                    |
+-----------------------------------------------------------------------------+

+-----------------------------------------------------------------------------+
|Proxy Voting:                                                                |
|                                                                             |
|                                                                             |
+--------------------------------------+--------------------------------------+
|10. Name of 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:           |                                      |
|                                      |                                      |
|                                      |                                      |
+--------------------------------------+--------------------------------------+
|14 Contact name:                      |                                      |
|                                      |                                      |
|                                      |                                      |
+--------------------------------------+--------------------------------------+
|15. Contact telephone name:           |                                      |
|                                      |                                      |
|                                      |                                      |
+--------------------------------------+--------------------------------------+


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

Note: Annex should only be submitted to the FSA not the issuer

+-----------------------------------------------------------------------------+
|Annex: Notification of major interests in shares                             |
+-----------------------------------------------------------------------------+



+-----------------------------------------------------------------------------+
|A: Identity of the persons or legal entity subject to the notification       |
|obligation                                                                   |
+--------------------------------------+--------------------------------------+
|Full name                             |  Renishaw plc                        |
|                                      |                                      |
|(including legal form of legal        |                                      |
|entities)                             |                                      |
|                                      |                                      |
|                                      |                                      |
+--------------------------------------+--------------------------------------+
|Contact address                       |  New Mills, Wotton-under-Edge,       |
|                                      |                                      |
|(registered office for legal entities)| Gloucestershire, GL12 8JR            |
|                                      |                                      |
|                                      |                                      |
+--------------------------------------+--------------------------------------+
|Phone number & email                  |  0145354 4407                        |
|                                      |                                      |
|                                      |                                      |
+--------------------------------------+--------------------------------------+
|Other useful information              |  Nick Burn                           |
|                                      |                                      |
|(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                                                    |
+-----------------------------------------------------------------------------+





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