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               09 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       2,188,646     2.78%        109,698     0.14%
securities
(2) Derivatives            0     0.00%
(other than
options)
(3) Options and      166,400     0.21%         70,500     0.09%
agreements to
purchase/sell
Total              2,355,046     2.99%        180,198     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         300                   30.92666667
Purchase         4,200                 31.65428571
Purchase         525                   31.5
Purchase         2,989                 31.0500 USD
Purchase         1,607                 30.99884256
Purchase         300                   30.9726
Purchase         4,058                 31.01527846
Purchase         1,335                 30.98996255
Purchase         400                   30.9852
Purchase         400                   30.85
Purchase         100                   30.9
Purchase         100                   30.97
Purchase         1,700                 30.96882353
Purchase         300                   31.01
Purchase         400                   30.9649
Purchase         100                   30.96
Purchase         100                   30.95
Purchase         100                   30.88
Purchase         2,171                 30.96556886
Purchase         749                   31.22356475
Purchase         400                   30.9777
Purchase         183                   31.05
Purchase         200                   30.95
Purchase         8,300                 30.9852
Purchase         400                   30.9777
Purchase         900                   30.9864 USD
Purchase         106                   31.0500 USD
Purchase         900                   31.00666667
Purchase         16                    31.0500 USD
Purchase         48                    31.0500 USD
Purchase         500                   30.872
Purchase         1,800                 30.88361111
Purchase         1,178                 31.03210526
Purchase         676                   31.0500 USD
Purchase         269                   31.0100 USD
Purchase         900                   31.0500 USD
Purchase         375                   31.48733333
Purchase         900                   30.98333333
Purchase         1,200                 30.9864 USD
Purchase         12                    31.0500 USD
Purchase         3,200                 30.90765625
Sale             41                    30.8986 USD
Sale             64                    30.8986 USD
Sale             8,800                 30.98397045
Sale             273                   31.05
Sale             476                   31.32310924
Sale             183                   31.05
Sale             400                   30.9777
Sale             1,178                 31.03210526
Sale             4,625                 31.65135135
Sale             3,200                 30.90765625
Sale             400                   30.875
Sale             600                   30.90083333
Sale             600                   30.87
Sale             200                   30.975
Sale             1,700                 30.968824
Sale             375                   31.48733333
Sale             500                   30.872
Sale             8,300                 30.9852
Sale             2,171                 30.96556886
Sale             300                   30.9726
Sale             400                   30.85
Sale             100                   30.9
Sale             400                   30.9852
Sale             200                   30.89

(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 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   -500                   20.0000          AMER           22/08/2009
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                   25.0000          AMER           21/11/2009
Option            Purchased   -100                   22.5000          AMER           22/01/2011
Option            Purchased   -100                   17.5000          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   -23,600                25.0000          AMER           22/08/2009
Option            Purchased   -500                   20.0000          AMER           22/08/2009
Option            Purchased   400                    35.0000          AMER           21/11/2009
Option            Purchased   -700                   40.0000          AMER           16/01/2010
Option            Purchased   -1,000                 30.0000          AMER           18/07/2009
Option            Purchased   -1,200                 30.0000          AMER           22/01/2011
Option            Purchased   -1,700                 30.0000          AMER           21/11/2009
Option            Purchased   -2,000                 40.0000          AMER           18/07/2009
Option            Purchased   -2,000                 22.5000          AMER           22/08/2009
Option            Purchased   -2,400                 25.0000          AMER           16/01/2010
Option            Purchased   -4,600                 25.0000          AMER           16/01/2010
Option            Purchased   -11,100                30.0000          AMER           18/07/2009
Option            Purchased   -18,000                30.0000          AMER           22/08/2009
Option            Purchased   -400                   35.0000          AMER           22/01/2011
Option            Purchased   1,800                  30.0000          AMER           22/08/2009
Option            Purchased   22,400                 25.0000          AMER           22/08/2009
Option            Purchased   6,900                  30.0000          AMER           16/01/2010
Option            Purchased   6,400                  30.0000          AMER           16/01/2010
Option            Purchased   5,800                  40.0000          AMER           22/08/2009
Option            Purchased   4,500                  35.0000          AMER           18/07/2009
Option            Purchased   4,400                  35.0000          AMER           16/01/2010
Option            Purchased   4,400                  20.0000          AMER           16/01/2010
Option            Purchased   3,600                  35.0000          AMER           22/08/2009
Option            Purchased   2,700                  45.0000          AMER           21/11/2009
Option            Purchased   2,600                  50.0000          AMER           16/01/2010
Option            Purchased   100                    22.5000          AMER           22/01/2011
Option            Purchased   1,800                  40.0000          AMER           22/01/2011
Option            Purchased   200                    15.0000          AMER           22/01/2011
Option            Purchased   1,500                  35.0000          AMER           18/07/2009
Option            Purchased   1,200                  40.0000          AMER           21/11/2009
Option            Purchased   1,100                  30.0000          AMER           21/11/2009
Option            Purchased   1,000                  55.0000          AMER           22/01/2011
Option            Purchased   900                    25.0000          AMER           22/01/2011
Option            Purchased   700                    35.0000          AMER           16/01/2010
Option            Purchased   600                    22.5000          AMER           22/08/2009
Option            Purchased   500                    35.0000          AMER           22/08/2009
Option            Purchased   400                    50.0000          AMER           21/11/2009
Option            Purchased   87,900                 35.0000          AMER           22/08/2009
Option            Purchased   2,300                  45.0000          AMER           16/01/2010

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