Rule 8.3 - INVERNESS MEDICAL INNOVATIONS INC

FORM 8.3

    DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE
              (Rule 8.3 of the City Code on Takeovers and Mergers)


1.   KEY INFORMATION

Name of person dealing        BARCLAYS PLC
(Note 1)
Company dealt in              INVERNESS MEDICAL INNOVATIONS INC
Class of relevant security    COM STK USD0.001
to which the dealings being
disclosed relate (Note 2)
Date of dealing               23 July 2009

2.   INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE

(a)  Interests and short positions (following dealing) in the class of relevant
security dealt in (Note 3)

                            Long                     Short

                      Number       (%)         Number       (%)

(1) Relevant      2,172,793        2.75%      100,973      0.13%
securities
(2) Derivatives           0        0.00%
(other than
options)
(3) Options and     153,600        0.19%       76,800      0.10%
agreements to
purchase/sell
Total             2,326,393        2.95%      177,773      0.23%


(b)  Interests and short positions in relevant securities of the company, other
     than the class dealt in (Note 3)

Class of                    Long                     Short
relevant
security:

                  Number              (%)   Number              (%)

(1) Relevant
securities

(2) Derivatives
(other than
options)

(3) Options and
agreements to
purchase/sell

Total


  (c)  Rights to subscribe (Note 3)

Class of relevant security:   Details



3.   DEALINGS (Note 4)

  (a)  Purchases and sales

Purchase/sale Number of Securities Price per unit
                                   (GBP)
Purchase      100                  33.64
Purchase      1,000                33.9813
Purchase      700                  33.4481
Purchase      100                  33.39
Purchase      100                  33.37
Purchase      100                  33.43
Purchase      100                  33.43
Purchase      700                  33.95657143
Purchase      800                  33.62375
Purchase      300                  33.57
Purchase      200                  33.68
Purchase      100                  33.368
Purchase      100                  33.65
Purchase      200                  33.725
Purchase      400                  33.6675
Purchase      100                  33.66
Purchase      300                  33.6
Purchase      300                  33.52666667
Purchase      200                  33.1
Purchase      100                  33.3
Purchase      900                  33.49888889
Purchase      800                  33.98875
Purchase      1,100                33.42909091
Purchase      122                  33.6600 USD
Purchase      1,200                33.4179
Purchase      128                  33.550625
Purchase      64                   33.9400 USD
Purchase      500                  33.278
Purchase      48                   33.9400 USD
Purchase      156                  33.42589744
Purchase      900                  33.38888889
Purchase      200                  33.54
Purchase      200                  33.9515
Purchase      269                  33.15468401
Purchase      1,300                33.67
Purchase      800                  33.3939625
Purchase      500                  33.4756
Purchase      200                  33.9525
Purchase      100                  33.706
Purchase      100                  33.3
Purchase      114                  33.48245614
Purchase      400                  33.69
Sale          100                  32.14
Sale          100                  34.03
Sale          100                  33.77
Sale          1,370                33.77277372
Sale          330                  33.70636364
Sale          100                  33.015
Sale          600                  33.73766667
Sale          100                  33.7
Sale          200                  34.04
Sale          3,367                33.4253014
Sale          1,000                33.9561
Sale          1,200                33.75083333
Sale          800                  33.62375
Sale          110                  33.5640 USD
Sale          100                  33.9400 USD
Sale          55                   33.5640 USD
Sale          41                   33.5640 USD
Sale          1,700                33.67470588
Sale          100                  33.3
Sale          400                  33.952
Sale          200                  33.54
Sale          1,000                33.9813
Sale          400                  33.604
Sale          500                  33.4756
Sale          190                  33.63
Sale          1,400                33.392
Sale          200                  33.71
Sale          1,500                33.97373333
Sale          35                   33.64
Sale          200                  33.445
Sale          135                  33.5640 USD
Sale          275                  33.76272727
Sale          700                  33.4481
Sale          300                  33.6
Sale          1,800                33.91055556
Sale          800                  33.44625
Sale          600                  33.48833333
Sale          200                  33.36
Sale          1,200                33.4179
Sale          11                   33.93

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)


(c)  Options transactions in respect of existing securities

(i)  Writing, selling, purchasing or varying

Product name,   Writing,          Number of          Exercise  Type, e.g.      Expiry   Option money
e.g. call       selling,          securities to      price     American,       date     paid/received
option          purchasing,       which the option             European etc.            per unit (GBP)
                varying etc.      relates (GBP)


(ii) Exercising

Product name, e.g.  Number of           Exercise price per
call option         securities          unit (Note 5)




(d)  Other dealings (including new securities) (Note 4)


Nature of transaction Details           Price per unit
(Note 8)                                (if applicable)
                                        (Note 5)




4.   OTHER INFORMATION
None

Agreements, arrangements or understandings relating to options or derivatives


Full details of any agreement, arrangement or understanding between the
person disclosing and any other person relating to the voting rights of
any relevant securities under any option referred to on this form or
relating to the voting rights or future acquisition or disposal of any
relevant securities to which any derivative referred to on this form is
referenced.  If none, this should be stated.




Is a Supplemental Form 8 attached? (Note 9)                 NO


Date of disclosure                         24 July 2009
Contact name                               Geoff Smith
Telephone number                           020 7116 2913
If a connected EFM, name of
offeree/offeror with which connected
If a connected EFM, state nature of
connection (Note 10)

Notes

The Notes on Form 8.3 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk

SUPPLEMENTAL FORM 8

DETAILS OF OPEN POSITIONS
(This form should be attached to Form 8.1, Form 8.1(b)(ii) or Form 8.3, as appropriate)

OPEN POSITIONS (Note 1)
Product name,     Written or  Number of securities   Exercise price   Type, e.g.     Expiry date
e.g. call option  purchased   to which the option    (Note 2)         American,
                              or derivative relates                   European etc.
Option            Purchased   900                    25.0000          AMER           22/01/2011
Option            Purchased   100                    12.5000          AMER           22/01/2011
Option            Purchased   6,400                  30.0000          AMER           16/01/2010
Option            Purchased   4,400                  20.0000          AMER           16/01/2010
Option            Purchased   2,700                  45.0000          AMER           21/11/2009
Option            Purchased   2,600                  50.0000          AMER           16/01/2010
Option            Purchased   2,300                  45.0000          AMER           16/01/2010
Option            Purchased   2,000                  30.0000          AMER           22/08/2009
Option            Purchased   1,800                  40.0000          AMER           22/01/2011
Option            Purchased   1,500                  40.0000          AMER           21/11/2009
Option            Purchased   1,400                  30.0000          AMER           21/11/2009
Option            Purchased   6,900                  30.0000          AMER           16/01/2010
Option            Purchased   900                    35.0000          AMER           16/01/2010
Option            Purchased   22,400                 25.0000          AMER           22/08/2009
Option            Purchased   600                    22.5000          AMER           22/08/2009
Option            Purchased   400                    50.0000          AMER           21/11/2009
Option            Purchased   200                    15.0000          AMER           22/01/2011
Option            Purchased   100                    35.0000          AMER           19/09/2009
Option            Purchased   100                    35.0000          AMER           21/11/2009
Option            Purchased   100                    35.0000          AMER           20/02/2010
Option            Purchased   100                    22.5000          AMER           22/01/2011
Option            Purchased   100                    20.0000          AMER           16/01/2010
Option            Purchased   100                    17.5000          AMER           22/01/2011
Option            Purchased   100                    15.0000          AMER           16/01/2010
Option            Purchased   1,000                  35.0000          AMER           22/08/2009
Option            Purchased   -1,900                 55.0000          AMER           22/01/2011
Option            Purchased   -100                   22.5000          AMER           22/01/2011
Option            Purchased   -100                   17.5000          AMER           16/01/2010
Option            Purchased   -100                   17.5000          AMER           22/08/2009
Option            Purchased   -200                   35.0000          AMER           21/11/2009
Option            Purchased   -200                   25.0000          AMER           20/02/2010
Option            Purchased   -400                   35.0000          AMER           22/01/2011
Option            Purchased   -500                   20.0000          AMER           22/08/2009
Option            Purchased   -500                   20.0000          AMER           22/08/2009
Option            Purchased   -600                   40.0000          AMER           20/02/2010
Option            Purchased   -600                   40.0000          AMER           16/01/2010
Option            Purchased   6,500                  40.0000          AMER           22/08/2009
Option            Purchased   -1,700                 30.0000          AMER           21/11/2009
Option            Purchased   -100                   25.0000          AMER           21/11/2009
Option            Purchased   -2,000                 22.5000          AMER           22/08/2009
Option            Purchased   -2,500                 25.0000          AMER           16/01/2010
Option            Purchased   -3,300                 35.0000          AMER           16/01/2010
Option            Purchased   -4,300                 50.0000          AMER           22/01/2011
Option            Purchased   -4,400                 55.0000          AMER           16/01/2010
Option            Purchased   -4,600                 25.0000          AMER           16/01/2010
Option            Purchased   -4,700                 35.0000          AMER           22/08/2009
Option            Purchased   -19,100                30.0000          AMER           22/08/2009
Option            Purchased   -23,600                25.0000          AMER           22/08/2009
Option            Purchased   87,900                 35.0000          AMER           22/08/2009
Option            Purchased   -1,300                 30.0000          AMER           22/01/2011



Notes

1. Where there are open option positions or open derivative positions (except for CFDs), full details should be given.
Full details of any  existing agreements to purchase or to sell  should also be given on this form.

2. For all prices and other monetary amounts, the currency must be stated.

For details of the Code's dealing disclosure requirements, see Rule 8 and its Notes which can be viewed on the Takeover
Panel's website at www.thetakeoverpanel.org.uk