MICROGEN PLC
28 SEPTEMBER 2012
BLOCK LISTING RETURN
Name of applicant: MICROGEN PLC
Name of scheme: MICROGEN PLC PERFORMANCE SHARE PLAN 2006
MICROGEN PLC COMPANY SHARE OPTION PLAN 2006
Period of return: From: 25 MARCH 2012 To: 24 SEPTEMBER 2012
Balance under scheme from previous return:
MICROGEN PLC PERFORMANCE SHARE PLAN 2006 - 826,732 ORDINARY SHARES OF 5P EACH
MICROGEN PLC COMPANY SHARE OPTION PLAN 2006 - 1,252,052 ORDINARY SHARES OF 5P EACH
The amount by which the block scheme has been increased, if the scheme has been increased since the date of the last return:
MICROGEN PLC PERFORMANCE SHARE PLAN 2006 - 0 ORDINARY SHARES OF 5P EACH
MICROGEN PLC COMPANY SHARE OPTION PLAN 2006 - 0 ORDINARY SHARES OF 5P EACH
Number of securities issued/allotted under scheme during period:
MICROGEN PLC PERFORMANCE SHARE PLAN 2006 - 9,167 ORDINARY SHARES OF 5P EACH
MICROGEN PLC COMPANY SHARE OPTION PLAN 2006 -34,971 ORDINARY SHARES OF 5P EACH
Balance under scheme not yet issued/allotted at end of period
MICROGEN PLC PERFORMANCE SHARE PLAN 2006 - 817,565 ORDINARY SHARES OF 5P EACH
MICROGEN PLC COMPANY SHARE OPTION PLAN 2006 - 1,217,081 ORDINARY SHARES OF 5P EACH
Number and class of securities originally listed and the date of admission
MICROGEN PLC PERFORMANCE SHARE PLAN 2006 - 127,460 ORDINARY SHARES OF 5P EACH - 7 SEPTEMBER 2009
MICROGEN PLC COMPANY SHARE OPTION PLAN 2006 - 142,001 ORDINARY SHARES OF 5P EACH - 7 SEPTEMBER 2009
MICROGEN PLC PERFORMANCE SHARE PLAN 2006 - 650,000 ORDINARY SHARES OF 5P EACH - 24 SEPTEMBER 2010
MICROGEN PLC COMPANY SHARE OPTION PLAN 2006 - 350,000 ORDINARY SHARES OF 5P EACH - 24 SEPTEMBER 2010
MICROGEN PLC PERFORMANCE SHARE PLAN 2006 - 237,517 ORDINARY SHARES OF 5P EACH - 10 OCTOBER 2011
MICROGEN PLC COMPANY SHARE OPTION PLAN 2006 - 184,674 ORDINARY SHARES OF 5P EACH - 10 OCTOBER 2011
MICROGEN PLC PERFORMANCE SHARE PLAN 2006 - 397,991 ORDINARY SHARES OF 5P EACH - 18 OCTOBER 2011
MICROGEN PLC COMPANY SHARE OPTION PLAN 2006 - 1,000,000 ORDINARY SHARES OF 5P EACH - 18 OCTOBER 2011
Total number of securities in issue at the end of the period
81,569,350 ORDINARY SHARES OF 5P EACH
Name of contact: ANJUM O'NEILL, COMPANY SECRETARY
Address of contact: OLD CHANGE HOUSE, 128 QUEEN VICTORIA STREET, LONDON, EC4V 4BJ
Telephone number of contact: 020 7496 8100
www.microgen.com