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               24 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      2,155,892        2.73%       90,493      0.11%
securities
(2) Derivatives           0        0.00%
(other than
options)
(3) Options and     144,000        0.18%      130,000      0.16%
agreements to
purchase/sell
Total             2,299,892        2.91%      220,493      0.28%


(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      949                  34.94671233
Purchase      400                  34.6025
Purchase      6,900                34.8997971
Purchase      300                  34.75
Purchase      48                   34.7400 USD
Purchase      200                  34.945
Purchase      200                  34.81
Purchase      9,500                34.97305263
Purchase      2,600                34.79384615
Purchase      5,628                35.03370291
Purchase      7,500                34.73626667
Purchase      100                  34.7369
Purchase      800                  34.69
Purchase      200                  34.725
Purchase      100                  34.81
Purchase      26,863               34.86086736
Purchase      1,383                34.70758489
Purchase      56                   34.7400 USD
Purchase      954                  34.7400 USD
Purchase      1,200                34.7444
Purchase      40                   34.74
Purchase      12                   34.72
Purchase      3,860                35.09175389
Purchase      20                   34.66
Purchase      4,300                34.87651163
Purchase      900                  34.79
Purchase      1,495                34.75197324
Purchase      1,000                34.764
Purchase      500                  34.758
Purchase      5,400                34.77407407
Purchase      8,700                34.72817241
Purchase      7                    34.72
Purchase      100                  34.75
Purchase      3,000                34.90839667
Purchase      100                  34.695
Purchase      100                  34.74
Purchase      12,300               34.82058537
Purchase      1,500                35.21
Purchase      200                  35.05
Purchase      1,700                34.59176471
Purchase      300                  34
Purchase      100                  34.13
Purchase      4,300                34.75181395
Purchase      100                  34.7369
Purchase      200                  35.2
Purchase      875                  35.15628571
Purchase      1,699                35.10001177
Purchase      1,000                35.121
Purchase      726                  35.09862259
Purchase      1,700                34.76235294
Sale          7,000                34.7947 USD
Sale          125                  34.688
Sale          100                  34.695
Sale          217                  34.73686636
Sale          200                  34.72
Sale          200                  35.05
Sale          300                  35.15666667
Sale          741                  34.69493927
Sale          10,600               34.6424 USD
Sale          1,300                35.17461538
Sale          3,900                35.01251282
Sale          800                  34.7675 USD
Sale          678                  34.7757 USD
Sale          500                  34.7675 USD
Sale          331                  34.7757 USD
Sale          261                  34.7757 USD
Sale          196                  34.7757 USD
Sale          181                  34.7757 USD
Sale          127                  34.7757 USD
Sale          100                  34.87
Sale          100                  34.7369
Sale          1,200                34.73916667
Sale          100                  34.7369
Sale          1,900                34.76056842
Sale          3,300                34.75236364
Sale          1,000                34.75
Sale          3,774                35.12391892
Sale          25,000               35.172
Sale          35,000               34.74872486
Sale          300                  34.76666667
Sale          300                  34.75666667
Sale          8,400                34.73147619
Sale          3,800                34.73973684
Sale          1,279                34.74257787
Sale          200                  34.74
Sale          3,000                34.74433333
Sale          700                  34.74428571
Sale          400                  34.0325
Sale          7,500                34.736267
Sale          1,200                34.7444
Sale          1,200                34.5925
Sale          200                  34.701
Sale          726                  35.09862259
Sale          100                  34.74

(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                         27 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   -2,000                 22.5000          AMER           22/08/2009
Option            Purchased   -23,600                25.0000          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   -500                   20.0000          AMER           22/08/2009
Option            Purchased   -600                   40.0000          AMER           16/01/2010
Option            Purchased   -700                   40.0000          AMER           20/02/2010
Option            Purchased   -1,400                 30.0000          AMER           22/01/2011
Option            Purchased   -1,600                 30.0000          AMER           22/08/2009
Option            Purchased   -100                   17.5000          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   -2,500                 25.0000          AMER           16/01/2010
Option            Purchased   -3,200                 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   -6,000                 35.0000          AMER           22/08/2009
Option            Purchased   -16,100                35.0000          AMER           22/08/2009
Option            Purchased   -17,300                40.0000          AMER           19/09/2009
Option            Purchased   -17,900                40.0000          AMER           22/08/2009
Option            Purchased   -18,000                30.0000          AMER           22/08/2009
Option            Purchased   -1,700                 30.0000          AMER           21/11/2009
Option            Purchased   600                    22.5000          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   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   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   -100                   17.5000          AMER           16/01/2010
Option            Purchased   900                    25.0000          AMER           22/01/2011
Option            Purchased   87,900                 35.0000          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                    35.0000          AMER           21/11/2009
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                   25.0000          AMER           21/11/2009
Option            Purchased   900                    35.0000          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