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               03 August 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       2,190,296     2.77%        113,704     0.14%
securities
(2) Derivatives            0     0.00%
(other than
options)
(3) Options and      145,600     0.18%        154,200     0.20%
agreements to
purchase/sell
Total              2,335,896     2.96%        267,904     0.34%


(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      400                  33.904
Purchase      100                  33.89
Purchase      73                   34.2
Purchase      3,050                34.00491803
Purchase      100                  34.11
Purchase      600                  34.058
Purchase      100                  33.95
Purchase      1,200                34.3025
Purchase      600                  33.98166667
Purchase      123                  34.11121951
Purchase      100                  33.64
Purchase      400                  33.89
Purchase      14,300               33.5432
Purchase      160                  33.89
Purchase      661                  34.01549168
Purchase      900                  34.07844444
Purchase      900                  33.96333333
Purchase      2,700                33.90888889
Purchase      100                  33.7
Purchase      311                  34.12106109
Purchase      400                  34.2025
Purchase      2,294                34.13327812
Purchase      1,493                34.16135968
Purchase      652                  34.13441718
Purchase      100                  34.22
Purchase      100                  33.64
Purchase      15,600               34.21025641
Purchase      56                   34.2200 USD
Purchase      100                  33.59
Purchase      500                  33.596
Purchase      100                  34.189
Purchase      105                  34.2200 USD
Purchase      18                   33.73
Purchase      200                  34.11
Purchase      100                  34.2
Purchase      100                  34.27
Purchase      2,180                34.1759633
Purchase      1,100                34.244
Purchase      9,600                34.14989583
Purchase      800                  34.135
Purchase      4,714                34.2200 USD
Purchase      5,031                34.15691314
Purchase      2,663                34.0448 USD
Purchase      200                  34.205
Purchase      100                  34.11
Purchase      10,622               34.16824327
Purchase      85                   34.18
Purchase      300                  33.83
Sale          5,384                33.9391
Sale          3,342                33.53083782
Sale          300                  34.13666667
Sale          132                  34.2200 USD
Sale          286                  34.2200 USD
Sale          600                  34.058
Sale          100                  34.183
Sale          352                  34.2200 USD
Sale          73                   34.2
Sale          100                  34.13
Sale          600                  33.595
Sale          700                  33.67985714
Sale          400                  34.2175
Sale          400                  33.904
Sale          100                  34.22
Sale          4,082                34.16472317
Sale          40,951               34.18095065
Sale          600                  34.058
Sale          660                  33.89
Sale          100                  34.15
Sale          100                  34.34
Sale          100                  34.17
Sale          6,811                33.54399354
Sale          1,200                34.3025
Sale          100                  34.14
Sale          147                  33.59482993
Sale          500                  33.596
Sale          22                   34.2200 USD
Sale          200                  33.47
Sale          2,600                33.53346154
Sale          100                  33.65
Sale          311                  34.1407074
Sale          200                  34.175
Sale          1,300                34.15230769
Sale          900                  34.24477778
Sale          289                  34.20536332
Sale          300                  34.14
Sale          200                  33.64

(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                         04 August 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   -2,900                 55.0000          AMER           22/01/2011
Option            Purchased   -39,600                40.0000          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   -700                   40.0000          AMER           20/02/2010
Option            Purchased   -700                   40.0000          AMER           16/01/2010
Option            Purchased   -1,400                 30.0000          AMER           22/01/2011
Option            Purchased   -1,900                 30.0000          AMER           21/11/2009
Option            Purchased   -2,000                 22.5000          AMER           22/08/2009
Option            Purchased   -2,100                 25.0000          AMER           22/01/2011
Option            Purchased   -100                   17.5000          AMER           22/08/2009
Option            Purchased   -2,500                 25.0000          AMER           16/01/2010
Option            Purchased   -100                   22.5000          AMER           22/01/2011
Option            Purchased   -3,000                 35.0000          AMER           20/02/2010
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                 40.0000          AMER           21/11/2009
Option            Purchased   -5,200                 35.0000          AMER           16/01/2010
Option            Purchased   -9,100                 35.0000          AMER           19/09/2009
Option            Purchased   -10,400                30.0000          AMER           22/08/2009
Option            Purchased   -11,100                30.0000          AMER           22/08/2009
Option            Purchased   -16,000                40.0000          AMER           19/09/2009
Option            Purchased   -23,600                25.0000          AMER           22/08/2009
Option            Purchased   -2,200                 35.0000          AMER           22/08/2009
Option            Purchased   600                    35.0000          AMER           21/11/2009
Option            Purchased   22,400                 25.0000          AMER           22/08/2009
Option            Purchased   6,900                  30.0000          AMER           16/01/2010
Option            Purchased   4,700                  20.0000          AMER           16/01/2010
Option            Purchased   4,200                  30.0000          AMER           16/01/2010
Option            Purchased   2,700                  45.0000          AMER           21/11/2009
Option            Purchased   2,700                  35.0000          AMER           22/08/2009
Option            Purchased   2,600                  50.0000          AMER           16/01/2010
Option            Purchased   2,300                  45.0000          AMER           16/01/2010
Option            Purchased   1,800                  40.0000          AMER           22/01/2011
Option            Purchased   1,600                  25.0000          AMER           19/09/2009
Option            Purchased   1,400                  30.0000          AMER           21/11/2009
Option            Purchased   -100                   17.5000          AMER           16/01/2010
Option            Purchased   900                    35.0000          AMER           16/01/2010
Option            Purchased   87,900                 35.0000          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           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   100                    12.5000          AMER           22/01/2011
Option            Purchased   -100                   30.0000          AMER           19/09/2009
Option            Purchased   -100                   25.0000          AMER           21/11/2009
Option            Purchased   1,100                  20.0000          AMER           22/08/2009


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