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               07 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       2,208,778     2.74%       136,403       0.17%
securities
(2) Derivatives            0     0.00%
(other than
options)
(3) Options and      151,400     0.19%       153,600       0.19%
agreements to
purchase/sell
Total              2,360,178     2.93%       290,003       0.36%


(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      2,120                33.2100 USD
Purchase      185                  33.21
Purchase      300                  33.43333333
Purchase      100                  33.48
Purchase      200                  33.337
Purchase      500                  33.296
Purchase      900                  33.31955556
Purchase      700                  33.48428571
Purchase      200                  33.245
Purchase      800                  33.34
Purchase      200                  33.38
Purchase      13,200               33.368258
Purchase      2,500                33.21
Purchase      600                  33.40133333
Purchase      300                  33.33666667
Purchase      100                  33.3638
Purchase      110                  33.29909091
Purchase      400                  33.328
Purchase      100                  33.27
Purchase      44                   33.2100 USD
Purchase      886                  33.2100 USD
Purchase      728                  33.2100 USD
Purchase      100                  33.3638
Purchase      392                  33.2100 USD
Purchase      66                   33.2100 USD
Purchase      63                   33.2100 USD
Purchase      300                  33.33
Purchase      56                   33.2100 USD
Purchase      100                  33.4
Purchase      22                   33.2100 USD
Purchase      300                  33.32333333
Purchase      500                  33.3456
Purchase      600                  33.335
Purchase      300                  33.35666667
Sale          800                  33.34
Sale          500                  33.396
Sale          103                  33.49330097
Sale          700                  33.484286
Sale          200                  33.365
Sale          100                  33.34
Sale          100                  33.36
Sale          197                  33.23461929
Sale          224                  33.43964286
Sale          13,200               33.36825758
Sale          700                  33.31457143
Sale          446                  33.3506 USD
Sale          96                   33.2100 USD
Sale          22                   33.2100 USD
Sale          16                   33.2100 USD
Sale          800                  33.3355
Sale          300                  33.43333333
Sale          500                  33.3456
Sale          100                  33.25
Sale          200                  33.38
Sale          185                  33.21
Sale          200                  33.36
Sale          100                  33.48
Sale          46                   33.26
Sale          2                    33.26
Sale          100                  33.23
Sale          100                  33.25
Sale          100                  33.3638
Sale          100                  33.27
Sale          500                  33.4276
Sale          100                  33.38
Sale          1,200                33.285
Sale          200                  33.337

(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)                 YES


Date of disclosure                         10 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   -100                   17.5000          AMER           16/01/2010
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           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                   22.5000          AMER           22/01/2011
Option            Purchased   -2,800                 25.0000          AMER           16/01/2010
Option            Purchased   -100                   25.0000          AMER           21/11/2009
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   -10,500                30.0000          AMER           22/08/2009
Option            Purchased   -10,900                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   900                    35.0000          AMER           16/01/2010
Option            Purchased   22,400                 25.0000          AMER           22/08/2009
Option            Purchased   6,900                  30.0000          AMER           16/01/2010
Option            Purchased   6,700                  35.0000          AMER           22/08/2009
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   2,600                  50.0000          AMER           16/01/2010
Option            Purchased   2,500                  45.0000          AMER           16/01/2010
Option            Purchased   1,800                  40.0000          AMER           22/01/2011
Option            Purchased   1,600                  30.0000          AMER           21/11/2009
Option            Purchased   1,600                  25.0000          AMER           19/09/2009
Option            Purchased   -100                   17.5000          AMER           22/08/2009
Option            Purchased   1,100                  20.0000          AMER           22/08/2009
Option            Purchased   87,900                 35.0000          AMER           22/08/2009
Option            Purchased   600                    35.0000          AMER           21/11/2009
Option            Purchased   600                    22.5000          AMER           22/08/2009
Option            Purchased   400                    50.0000          AMER           21/11/2009
Option            Purchased   300                    40.0000          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   1,100                  40.0000          AMER           20/02/2010

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