07 September 2020

Notification of Major Holdings Threadneedle

1a. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:Oxford Instruments PLC
1b. Please indicate if the issuer is a non-UK issuer (please mark with an "X" if appropriate)
Non-UK issuer
2. Reason for the notification (please mark the appropriate box or boxes with an "X")
An acquisition or disposal of voting rightsX
An acquisition or disposal of financial instruments
An event changing the breakdown of voting rights
Other (please specify):
3. Details of person subject to the notification obligation
NameAmeriprise Financial, Inc. and its group
City and country of registered office (if applicable)Minneapolis, USA
4. Full name of shareholder(s) (if different from 3.)
NameVidacos Nominees Limited
City and country of registered office (if applicable)
5. Date on which the threshold was crossed or reached:03/09/2020
6. Date on which issuer notified (DD/MM/YYYY):04/09/2020
7. Total positions of person(s) subject to the notification obligation

% of voting rights attached to shares (total of 8. A)% of voting rights through financial instruments
(total of 8.B 1 + 8.B 2)
Total of both in %
(8.A + 8.B)
Total number of voting rights of issuer
Resulting situation on the date on which threshold was crossed or reached12.966%0.000%12.966%57,440,143
Position of previous notification (if applicable)13.367%0.00%13.367%


8. Notified details of the resulting situation on the date on which the threshold was crossed or reached
A: Voting rights attached to shares
Class/type of shares
ISIN code (if possible)
Number of voting rights% of voting rights
Direct
(Art 9 of Directive 2004/109/EC) (DTR5.1)
Indirect
(Art 10 of Directive 2004/109/EC) (DTR5.2.1)
Direct
(Art 9 of Directive 2004/109/EC) (DTR5.1)
Indirect
(Art 10 of Directive 2004/109/EC) (DTR5.2.1)
GB000665045016,6837,430,8650.029%12.937%










SUBTOTAL 8. A7,447,54812.966%



B 1: Financial Instruments according to Art. 13(1)(a) of Directive 2004/109/EC (DTR5.3.1.1(a))
Type of financial instrumentExpiration dateExercise/Conversion PeriodNumber of voting rights that may be acquired if the instrument is exercised/converted% of voting rights











SUBTOTAL 8. B 1


B 2: Financial Instruments with similar economic effect according to Art. 13(1)(b) of Directive 2004/109/EC (DTR5.3.1.1 (b))
Type of financial instrumentExpiration dateExercise/Conversion PeriodPhysical or cash settlementNumber of voting rights% of voting rights







SUBTOTAL 8.B.2


9. Information in relation to the person subject to the notification obligation (please mark the applicable box with an "X")
Person subject to the notification obligation is not controlled by any natural person or legal entity and does not control any other undertaking(s) holding directly or indirectly an interest in the (underlying) issuer
Full chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held starting with the ultimate controlling natural person or legal entity (please add additional rows as necessary)X
Name% of voting rights if it equals or is higher than the notifiable threshold% of voting rights through financial instruments if it equals or is higher than the notifiable thresholdTotal of both if it equals or is higher than the notifiable threshold
Ameriprise Financial, Inc.%%%
Ameriprise International Holdings GmbH%%%
Threadneedle Asset Management Holdings SARL%%%
Threadneedle Holdings Limited%%%
TAM UK Holdings Limited%%%
Threadneedle Asset Management Holdings Limited%%%
TC Financing Limited%%%
Threadneedle Asset Management Limited12.962%%12.962%




Ameriprise Financial, Inc.%%%
Columbia Management Investment Advisers, LLC%%%


10. In case of proxy voting, please identify:
Name of the proxy holderN/A
The number and % of voting rights heldN/A
The date until which the voting rights will be heldN/A

11. Additional Information
Threadneedle Asset Management Limited is wholly owned by TC Financing Limited, which is itself wholly owned by Threadneedle Asset Management Holdings Limited, which is itself wholly owned by TAM UK Holdings Limited, which is itself wholly owned by Threadneedle Holdings Limited, which is itself wholly owned by Threadneedle Asset Management Holdings SARL, which is itself wholly owned by Ameriprise International Holdings GmbH, which is itself wholly owned by Ameriprise Financial, Inc.

Columbia Management Investment Advisers, LLC is wholly owned by Ameriprise Financial, Inc.


Place of completionSwindon, UK
Date of completion04/09/2020


12. Contact NameSusan Johnson-Brett, Oxford Instruments plc
13. Contact Telephone Number01865 393324