Director/PDMR Shareholding

6th August 2007 Microgen plc Director/PDMR Shareholding This notification is made in accordance with DR 3.1.4R (1) (a) and (b). 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 6th August 2007 to the following Directors and PDMRs: Name of Director: David Sherriff Date of Grant: 6 August 2007 Date on which it can be exercised: 6 August 2010 Total amount paid (if any) for grant of option: NIL Description of shares involved: 100,000 Ordinary Shares of 5p each Exercise price in pence: 5p Total Number of Shares over which Options held following this notification: 993,220 Name of Director: Philip Wood Date of Grant: 6 August 2007 Date on which it can be exercised: 6 August 2010 Total amount paid (if any) for grant of option: NIL Description of shares involved: 75,000 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: Christopher Beed Date of Grant: 6 August 2007 Date on which it can be exercised: 6 August 2010 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: 100,000 Name of PDMR: Tom Crawford Date of Grant: 6 August 2007 Date on which it can be exercised: 6 August 2010 Total amount paid (if any) for grant of option: NIL Description of shares involved: 75,000 Ordinary Shares of 5p each Exercise price in pence: 5p Total Number of Shares over which Options held following this notification: 245,000 Name of PDMR: Elizabeth Sipiere Date of Grant: 6 August 2007 Date on which it can be exercised: 6 August 2010 Total amount paid (if any) for grant of option: NIL Description of shares involved: 75,000 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: Clare Groom Date of Grant: 6 August 2007 Date on which it can be exercised: 6 August 2010 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: 170,000 Name of PDMR: Gerry Liddle Date of Grant: 6 August 2007 Date on which it can be exercised: 6 August 2010 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: 250,000 Name of PDMR: Neil Thomson Date of Grant: 6 August 2007 Date on which it can be exercised: 6 August 2010 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: 220,000 If you require further information please contact: G.E. Liddle, Company Secretary 01252 772 313 www.microgen.co.uk
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