MICROGEN PLC
1 JULY 2011
BLOCK LISTING RETURN
Name of applicant: MICROGEN PLC
Name of scheme: MICROGEN PLC 1997 AND 1999 EXECUTIVE SHARE OPTION SCHEME
MICROGEN PLC 1996 SAVINGS RELATED SHARE OPTION SCHEME
Period of return: From: 1 JANUARY 2011 To: 30 JUNE 2011
Balance under scheme from previous returns:
MICROGEN PLC 1997 AND 1999 EXECUTIVE SHARE OPTION SCHEME - 68,000 ORDINARY SHARES OF 5P EACH
MICROGEN PLC 1996 SAVINGS RELATED SHARE OPTION SCHEME - 82,291 ORDINARY SHARES OF 5P EACH
MICROGEN PLC 1997 AND 1999 EXECUTIVE SHARE OPTION SCHEME - 745,000 ORDINARY SHARES OF 5P EACH
MICROGEN PLC 1996 SAVINGS RELATED SHARE OPTION SCHEME - 30,000 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: N/A
Number of securities issued/allotted under
scheme during period:
MICROGEN PLC 1997 AND 1999 EXECUTIVE SHARE OPTION SCHEME - 187,500 ORDINARY SHARES OF 5P EACH
MICROGEN PLC 1996 SAVINGS RELATED SHARE OPTION SCHEME - 0 ORDINARY SHARES OF 5P EACH
Balance under scheme not yet issued/allotted
at end of period
MICROGEN PLC 1997 AND 1999 EXECUTIVE SHARE OPTION SCHEME - 625,500 ORDINARY SHARES OF 5P EACH
MICROGEN PLC 1996 SAVINGS RELATED SHARE OPTION SCHEME - 112,291 ORDINARY SHARES OF 5P EACH
Number and class of securities originally
listed and the date of admission
MICROGEN PLC 1997 AND 1999 EXECUTIVE SHARE OPTION SCHEME - 800,000 ORDINARY SHARES OF 5P EACH
MICROGEN PLC 1996 SAVINGS RELATED SHARE OPTION SCHEME - 200,000 ORDINARY SHARES OF 5P EACH
15 APRIL 2005
MICROGEN PLC 1997 AND 1999 EXECUTIVE SHARE OPTION SCHEME - 745,000 ORDINARY SHARES OF 5P EACH
MICROGEN PLC 1996 SAVINGS RELATED SHARE OPTION SCHEME - 30,000 ORDINARY SHARES OF 5P EACH
27 JUNE 2008
Total number of securities in issue at the end
of the period
81,120,595 ORDINARY SHARES OF 5P EACH
Name of contact: PHILIP WOOD, DIRECTOR
Address of contact: OLD CHANGE HOUSE, 128 QUEEN VICTORIA STREET, LONDON, EC4V 4BJ
Telephone number of contact: 020 7496 8100
www.microgen.com