Director/PDMR Shareholding

2 December 2008 Microgen plc (the "Company") Director/PDMR Shareholding This notification is made in accordance with DR 3.1.4R (1) (a): Microgen plc announces that, in accordance with the rules of the Microgen Performance Share Plan 2006, awards of options over Ordinary Shares of 5p each were made on 2 December 2008 to the following PDMRs: Name of PDMR: Chris Beed Date of Grant: 2 December 2008 Date on which it can be exercised: 2 December 2011 Total amount paid (if any) for grant of option: NIL Description of shares involved: 10,000 Ordinary Shares of 5p each Exercise price in pence: 5p Total Number of Shares over which Options held following this notification: 110,000 Name of PDMR: Tom Crawford Date of Grant: 2 December 2008 Date on which it can be exercised: 2 December 2011 Total amount paid (if any) for grant of option: NIL Description of shares involved: 55,000 Ordinary Shares of 5p each Exercise price in pence: 5p Total Number of Shares over which Options held following this notification: 200,000 Name of PDMR: Clare Groom Date of Grant: 2 December 2008 Date on which it can be exercised: 2 December 2011 Total amount paid (if any) for grant of option: NIL Description of shares involved: 30,000 Ordinary Shares of 5p each Exercise price in pence: 5p Total Number of Shares over which Options held following this notification: 200,000 Name of PDMR: Tamara Kahn Date of Grant: 2 December 2008 Date on which it can be exercised: 2 December 2011 Total amount paid (if any) for grant of option: NIL Description of shares involved: 50,000 Ordinary Shares of 5p each Exercise price in pence: 5p Total Number of Shares over which Options held following this notification: 175,000 Name of PDMR: Philip Learmont Date of Grant: 2 December 2008 Date on which it can be exercised: 2 December 2011 Total amount paid (if any) for grant of option: NIL Description of shares involved: 50,000 Ordinary Shares of 5p each Exercise price in pence: 5p Total Number of Shares over which Options held following this notification: 125,000 Name of PDMR: Martin Redington Date of Grant: 2 December 2008 Date on which it can be exercised: 2 December 2011 Total amount paid (if any) for grant of option: NIL Description of shares involved: 20,000 Ordinary Shares of 5p each Exercise price in pence: 5p Total Number of Shares over which Options held following this notification: 200,000 Name of PDMR: Anjum Siddiqi Date of Grant: 2 December 2008 Date on which it can be exercised: 2 December 2011 Total amount paid (if any) for grant of option: NIL Description of shares involved: 35,000 Ordinary Shares of 5p each Exercise price in pence: 5p Total Number of Shares over which Options held following this notification: 120,000 Name of PDMR: Elizabeth Sipiere Date of Grant: 2 December 2008 Date on which it can be exercised: 2 December 2011 Total amount paid (if any) for grant of option: NIL Description of shares involved: 25,000 Ordinary Shares of 5p each Exercise price in pence: 5p Total Number of Shares over which Options held following this notification: 200,000 If you require further information please contact: A. Siddiqi, Company Secretary Tel: 01252 772 326 www.microgen.com
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