Director/PDMR Shareholding

Directors' Dealings

The Company announces that on 21 November the following directors' dealing took
place:

Steven Parker, Executive Director purchased 10,000 shares on the open market at
209.9563p per share. This is his total shareholding in the Company and
represents 0.2 % of the Company's issued share capital.

Susan Johnson-Brett

Company Secretary

Oxford Instruments plc

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