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 23 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 2,147,515 2.73% 87,413 0.11% securities (2) Derivatives 0 0.00% (other than options) (3) Options and 123,800 0.16% 56,900 0.07% agreements to purchase/sell Total 2,271,315 2.88% 144,313 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 100 34.2400 USD Purchase 500 34.265 USD Purchase 38,700 34.3900 USD Purchase 21 34.3600 USD Purchase 21 34.3600 USD Purchase 22 34.3600 USD Purchase 920 34.2767 USD Purchase 100 34.2400 USD Purchase 100 34.2500 USD Purchase 300 34.2366 USD Purchase 297 34.3600 USD Purchase 86 34.0600 USD Purchase 6,100 34.1931 USD Purchase 22 34.3600 USD Sale 395 34.2229 USD Sale 920 34.2767 USD Sale 1,900 34.5500 USD Sale 1,800 34.1377 USD Sale 3,800 34.2247 USD Sale 100 34.0300 USD Sale 400 34.3900 USD Sale 500 34.152 USD Sale 86 34.0600 USD Sale 100 34.5676 USD Sale 25 34.3600 USD Sale 42 34.3600 USD Sale 99 34.3600 USD Sale 100 34.5676 USD Sale 291 34.3600 USD Sale 389 34.3018 USD Sale 500 34.2050 USD Sale 700 34.2050 USD Sale 23,000 34.0750 USD Sale 800 34.2175 USD (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 24 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 25.0000 AMER 20/02/2010 Option Purchased 100 15.0000 AMER 16/01/2010 Option Purchased -100 25.0000 AMER 21/11/2009 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 40.0000 AMER 21/11/2009 Option Purchased -900 30.0000 AMER 18/07/2009 Option Purchased 400 50.0000 AMER 21/11/2009 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 -2,700 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 2,300 45.0000 AMER 16/01/2010 Option Purchased 22,300 25.0000 AMER 22/08/2009 Option Purchased 8,900 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 4,400 20.0000 AMER 16/01/2010 Option Purchased 100 35.0000 AMER 22/08/2009 Option Purchased 2,700 50.0000 AMER 16/01/2010 Option Purchased 40,000 35.0000 AMER 22/08/2009 Option Purchased 1,600 40.0000 AMER 22/01/2011 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 900 25.0000 AMER 22/01/2011 Option Purchased 900 22.5000 AMER 22/08/2009 Option Purchased 700 35.0000 AMER 16/01/2010 Option Purchased 3,600 35.0000 AMER 21/11/2009 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

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Barclays (BARC)
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