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               22 June 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       2,134,251      2.71%        85,490     0.11%
securities
(2) Derivatives            0      0.00%
(other than
options)
(3) Options and      122,100      0.16%        56,900     0.07%
agreements to
purchase/sell
Total              2,256,351      2.87%       142,390     0.18%


(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         2,600                 34.3153
Purchase         4,687                 34.2913
Purchase         100                   34.36
Purchase         100                   34.13
Purchase         297                   34.4000 USD
Purchase         307                   34.5328
Purchase         158                   34.4000 USD
Purchase         21                    34.4000 USD
Purchase         500                   34.338
Purchase         246                   34.4000 USD
Purchase         100                   34.23
Purchase         1,036                 34.4000 USD
Purchase         53                    34.4000 USD
Purchase         51                    34.4000 USD
Purchase         42                    34.4000 USD
Purchase         1,809                 34.3130
Purchase         530                   34.4000 USD
Purchase         22                    34.4000 USD
Purchase         100                   34.17
Purchase         600                   34.1433
Purchase         1,100                 34.1590
Purchase         400                   34.4725
Sale             68                    34.4000 USD
Sale             495                   34.2824 USD
Sale             340                   34.4000 USD
Sale             246                   34.4000 USD
Sale             200                   34.4150 USD
Sale             565                   34.2824 USD
Sale             131                   34.4000 USD
Sale             109                   34.3401
Sale             55                    34.2566 USD
Sale             26                    34.4000 USD
Sale             145                   34.2824 USD
Sale             1,500                 34.4094
Sale             307                   34.5327
Sale             1,500                 34.25
Sale             400                   34.32
Sale             440                   34.4436
Sale             260                   34.56
Sale             200                   34.655
Sale             2,600                 34.3153 USD
Sale             300                   34.65
Sale             589                   34.2566 USD
Sale             300                   35
Sale             5,500                 30
Sale             1,981                 34.25
Sale             97                    34.5101
Sale             2,436                 34.2824 USD
Sale             1,866                 34.2824 USD
Sale             913                   34.2824 USD
Sale             300                   34.67


(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)
Call            Purchase          100                35        American        22/08/2009  2.225
Call            Purchase          100                35        American        21/11/2009  3.750
Call            Purchase          100                40        American        22/08/200   0.450
Call            Purchase          100                40        American        22/08/2009  0.600
Call            Purchase          200                35        American        21/11/2009  3.750
Call            Purchase          400                40        American        22/08/2009  0.600
Call            Purchase          2500               35        American        22/08/2009  2.080
Call            Sale              100                35        American        22/08/2009  2.150
Call            Sale              100                35        American        22/08/2009  2.225
Call            Sale              100                35        American        21/11/2009  3.750
Call            Sale              100                35        American        21/11/2009  3.800
Call            Sale              100                40        American        22/08/2009  0.600
Call            Sale              200                35        American        21/11/2009  3.750
Call            Sale              400                40        American        22/08/2009  0.600
Put             Purchase          100                30        American        22/08/2009  1.000
Put             Purchase          400                30        American        22/08/2009  1.000
Put             Purchase          400                35        American        18/07/2009  1.500
Put             Purchase          400                35        American        18/07/2009  1.800
Put             Sale              100                30        American        22/08/2009  1.000
Put             Sale              400                30        American        22/08/2009  1.000
Put             Sale              400                35        American        18/07/2009  1.800
Put             Sale              2500               30        American        22/08/2009  1.080


(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                         23 June 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   -1,000                 30.0000          AMER           21/11/2009
Option            Purchased   -23,900                25.0000          AMER           22/08/2009
Option            Purchased   100                    35.0000          AMER           22/08/2009
Option            Purchased   100                    15.0000          AMER           16/01/2010
Option            Purchased   -100                   17.5000          AMER           22/08/2009
Option            Purchased   -100                   17.5000          AMER           16/01/2010
Option            Purchased   -500                   20.0000          AMER           22/08/2009
Option            Purchased   -500                   20.0000          AMER           22/08/2009
Option            Purchased   400                    50.0000          AMER           21/11/2009
Option            Purchased   -900                   30.0000          AMER           18/07/2009
Option            Purchased   700                    35.0000          AMER           16/01/2010
Option            Purchased   -1,200                 30.0000          AMER           22/01/2011
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   -2,800                 35.0000          AMER           18/07/2009
Option            Purchased   -3,000                 30.0000          AMER           22/08/2009
Option            Purchased   -4,600                 25.0000          AMER           16/01/2010
Option            Purchased   -11,100                30.0000          AMER           18/07/2009
Option            Purchased   -800                   40.0000          AMER           16/01/2010
Option            Purchased   2,700                  50.0000          AMER           16/01/2010
Option            Purchased   22,300                 25.0000          AMER           22/08/2009
Option            Purchased   7,900                  35.0000          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   6,300                  35.0000          AMER           18/07/2009
Option            Purchased   5,700                  40.0000          AMER           22/08/2009
Option            Purchased   4,400                  35.0000          AMER           16/01/2010
Option            Purchased   400                    40.0000          AMER           21/11/2009
Option            Purchased   3,600                  35.0000          AMER           21/11/2009
Option            Purchased   40,000                 35.0000          AMER           22/08/2009
Option            Purchased   2,300                  45.0000          AMER           16/01/2010
Option            Purchased   1,500                  30.0000          AMER           22/08/2009
Option            Purchased   1,200                  30.0000          AMER           21/11/2009
Option            Purchased   1,000                  55.0000          AMER           22/01/2011
Option            Purchased   1,000                  45.0000          AMER           21/11/2009
Option            Purchased   1,000                  40.0000          AMER           22/01/2011
Option            Purchased   900                    25.0000          AMER           22/01/2011
Option            Purchased   900                    22.5000          AMER           22/08/2009
Option            Purchased   4,400                  20.0000          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