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 Oxford Instruments
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 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 BlackRock, Inc.
the notification obligation: iii
4. Full name of shareholder(s) (if
different from 3.):iv
5. Date of the transaction and date 25 April 2013
on which the threshold is crossed or
reached: v
6. Date on which issuer notified: 26 April 2013
7. Threshold(s) that is/are crossed Holding has gone above 15%
or reached: vi, vii
8. Notified details:
A: Voting rights attached to shares viii, ix
Class/type of Situation previous Resulting situation after
shares to the triggering the triggering
transaction transaction
if possible Number Number % of voting
using Number of Number of rights x
the ISIN CODE of Voting of voting
Shares Rights shares rights
Direct Direct Indirect Direct Indirect
xi xii
GB0006650450 7,428,906 7,428,906 n/a n/a 7,763,012 n/a 13.64%
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 Exercise Expiration Exercise/ Number of voting % of voting
financial price date xvii Conversion rights instrument rights xix, xx
instrument period refers to
xviii
Nominal Delta
CFD 879,463 1.55% 1.55%
Total (A+B+C)
Number of voting rights Percentage of voting rights
8,642,475 15.18%
9. Chain of controlled undertakings through which the voting
rights and/or the financial instruments are effectively held, if
applicable: xxi
BlackRock Investment Management (UK) Limited - 8,642,475 (15.18%)
Proxy Voting:
10. Name of the proxy holder:
11. Number of voting rights proxy
holder will cease to hold:
12. Date on which proxy holder will
cease to hold voting rights:
13. Additional information: Oxford Instruments plc
14. Contact name: Susan Johnson-Brett
15. Contact telephone number: 01865 393 200