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 yes
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 Legal & General Group Plc (Group)
notification obligation: iii
Legal & General Investment
Management Limited
(LGIM)
4. Full name of shareholder(s) (if Legal & General Group Plc (L&G)
different from 3.):iv
5. Date of the transaction and date on 17 April 2013
which the threshold is crossed or reached:
v
6. Date on which issuer notified: 18 April 2013
7. Threshold(s) that is/are crossed or Group (Below 5%)
reached: vi, vii
LGIM (Below 5%)
8. Notified details:
A: Voting rights attached to shares viii, ix
Class/type of Situation Resulting situation after
shares previous the triggering
to the triggering transaction
transaction
if possible
using Number Number % of voting
the ISIN CODE Number of Number of rights x
of Voting of voting
Shares Rights shares rights
Direct xi Indirect Direct Indirect
xii
Ordinary 5p 2,852,830 Below 5%
(as at 06/02/
2013)
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
Total (A+B+C)
Number of voting rights Percentage of voting rights
Below 5%
9. Chain of controlled undertakings through which the voting
rights and/or the financial instruments are effectively held, if
applicable: xxi
Legal & General Group Plc (Direct and Indirect) (Group)
(Below 5% = Total Position)
Legal & General Investment Management (Holdings) Limited
(LGIMH) (Direct and Indirect) (Below 5% = Total Position)
Legal & General Investment Management Limited (Indirect) (LGIM) (Below 5% =
Total Position)
Legal & General Group Plc (Direct) (L&G) (1,916,398 -
3.36% = LGAS, LGPL & PMC)
Legal & General Investment Management (Holdings) Limited (Direct) (LGIMHD)
(PMC)
Legal & General Insurance Holdings Limited (Direct) (LGIH)
Legal & General Assurance (Pensions Management) Limited (PMC) (PMC)
Legal & General Assurance Society Limited (LGAS & LGPL)
Legal & General Pensions Limited (Direct) (LGPL)
Proxy Voting:
10. Name of the proxy holder: n/a
11. Number of voting rights proxy n/a
holder will cease to hold:
12. Date on which proxy holder will n/a
cease to hold voting rights:
13. Additional information: Notification using the total voting
rights figure of
56,916,830
14. Contact name: Susan Johnson-Brett
15. Contact telephone number: 01865 393 200