Blocklisting Interim Review

Halma PLC
27 January 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 July 2005 to 31 December
                                                     2005


4.   Number and class of share(s) (amount of         372,095
     stock/debt security) not issued under
     scheme at start of period:


5.   Number of shares issued/allotted under          280,662
     scheme during period:


6.   Balance under scheme not yet issued/            91,433
     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       369,205,480
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 July 2005 to 31 December
                                                     2005


4.   Number and class of share(s) (amount of         410,409
     stock/debt security) not issued under
     scheme at start of period:


5.   Number of shares issued/allotted under          106,433
     scheme during period:


6.   Balance under scheme not yet issued/            303,976
     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       369,205,480
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 July 2005 to 31 December
                                                        2005


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            0
      scheme during period:


6.    Balance under scheme not yet issued/              1,400,000
      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 issue       369,205,480
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 July 2005 to 31 December
                                                    2005


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         0
     scheme during period:


6.   Balance under scheme not yet issued/           1,180,300
     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 (covering
     and the date of admission:                     4,700,000 shares in total)


Please confirm total number of shares in issue      369,205,480
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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