Holding(s) in Company

For filings with the FCA include the annex
For filings with issuer exclude the annex
TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES i

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

Oxford Instruments 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	Aberdeen Asset Managers Limited (and/or acting for its affiliates) as discretionary investment manager on behalf of multiple managed portfolios
4. Full name of shareholder(s) (if different from 3.):iv
5. Date of the transaction and date on which the threshold is crossed or reached: v	24 November 2015
6. Date on which issuer notified:	26 November 2015
7. Threshold(s) that is/are crossed or reached: vi, vii	10%

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
ORD GBP.05 GB0006650450	5,724,472	5,724,472	5,812,760		5,812,760		10.14%

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

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
5,812,760	10.14%

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

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:
14. Contact name:	Susan Johnson-Brett Company Secretary
15. Contact telephone number:	01865 393 200