Blocklisting Interim Review

Halma PLC
11 August 2006


                                HALMA p.l.c.

                                 SCHEDULE 5



                       BLOCKLISTING SIX MONTHLY RETURN


1.   Name of company:                                Halma p.l.c.


2.   Name of scheme:                                 1990 Share Option Scheme


3.   Period of return:                               From 1 January 2006 to 30 June 2006


4.   Number and class of share(s) (amount of         91,433
     stock/debt security) not issued under
     scheme at start of period:


5.   Number of shares issued/allotted under          7,300
     scheme during period:


6.   Balance under scheme not yet issued/            84,133
     allotted at end of period:


7.   Number and class of share(s) (amount of         471,666 10p ordinary shares
     stock/debt securities) originally listed        admitted 12 July 2004
     and the date of admission:


Please confirm total number of shares in issue       370,148,563
at the end of the period in order for us to
update our records:




                      BLOCKLISTING SIX MONTHLY RETURN


1.   Name of company:                                Halma p.l.c.


2.   Name of scheme:                                 1996 Unapproved Share Option
                                                     Scheme


3.   Period of return:                               From 1 January 2006 to 30 June 2006


4.   Number and class of share(s) (amount of         303,976
     stock/debt security) not issued under
     scheme at start of period:


5.   Number of shares issued/allotted under          303,976
     scheme during period:


6.   Balance under scheme not yet issued/            0
     allotted at end of period:


7.   Number and class of share(s) (amount of         1,400,000 10p ordinary shares
     stock/debt securities) originally listed        admitted 30 July 2003
     and the date of admission:


Please confirm total number of shares in issue       370,148,563
at the end of the period in order for us to
update our records:




                         BLOCKLISTING SIX MONTHLY RETURN


1.   Name of company:                                  Halma p.l.c.


2.   Name of scheme:                                   1996 Unapproved Share Option
                                                       Scheme

3.   Period of return:                                 From 1 January 2006 to 30 June 2006


4.   Number and class of share(s) (amount of           1,400,000
     stock/debt security) not issued under
     scheme at start of period:


5.   Number of shares issued/allotted under            342,254
     scheme during period:


6.   Balance under scheme not yet issued/              1,057,746
     allotted at end of period:


7.   Number and class of share(s) (amount of           1,400,000 10p ordinary shares
     stock/debt securities) originally listed          admitted 24 October 2005
     and the date of admission:


Please confirm total number of shares in            370,148,563
issue at the end of the period in order for
us to update our records:




                        BLOCKLISTING SIX MONTHLY RETURN


1.   Name of company:                                Halma p.l.c.


2.   Name of scheme:                                 1999 Company Share Option Plan


3.   Period of return:                               From 1 January 2006 to 30 June 2006


4.   Number and class of share(s) (amount of         1,180,300
     stock/debt security) not issued under
     scheme at start of period:


5.   Number of shares issued/allotted under          289,553
     scheme during period:


6.   Balance under scheme not yet issued/            890,747
     allotted at end of period:


7.   Number and class of share(s) (amount of         1,200,000 10p ordinary shares
     stock/debt securities) originally listed        admitted 16 July 2001
     and the date of admission:


Please confirm total number of shares in issue       370,148,563
at the end of the period in order for us to
update our records:




                       BLOCKLISTING SIX MONTHLY RETURN


1.   Name of company:                               Halma p.l.c.


2.   Name of scheme:                                1999 Company Share Option Plan


3.   Period of return:                              From 1 January 2006 to 30 June 2006


4.   Number and class of share(s) (amount of        4,000,000
     stock/debt security) not issued under
     scheme at start of period:


5.   Number of shares issued/allotted under         0
     scheme during period:


6.   Balance under scheme not yet issued/           4,000,000
     allotted at end of period:


7.   Number and class of share(s) (amount of        4,000,000 10p ordinary shares
     stock/debt securities) originally listed       admitted 16 June 2006
     and the date of admission:


Please confirm total number of shares in issue      370,148,563
at the end of the period in order for us to
update our records:






Contact for further information:



Carol Chesney
Company Secretary, Halma p.l.c.
Tel:  [phone]



A copy of this announcement, together with other information about Halma, may be 
viewed on its web site www.halma.com.






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            The company news service from the London Stock Exchange  ND

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