Rule 8.3 - NORTHERN ROCK PLC

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 NORTHERN ROCK PLC Class of relevant security ORD GBP0.25 to which the dealings being disclosed relate (Note 2) Date of dealing 28 December 2007 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 10,936,731 2.60% 32,589 0.01% securities (2) Derivatives 31,840 0.01% 1,648,921 0.39% (other than options) (3) Options and 0 0.00% 0 0.00% agreements to purchase/sell Total 10,968,571 2.60% 1,681,510 0.40% (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 67,514 .8465 Purchase 122,047 .8371 Purchase 2,900 .8538 Purchase 91,629 .8451 Purchase 122,047 .8371 Purchase 450 .8450 Purchase 30,418 .8132 Purchase 20,765 .8393 Purchase 11,662 .8300 Purchase 122,047 .8372 Sale 91,629 .8451 Sale 450 .8448 Sale 30,418 .8132 Sale 122,047 .8371 Sale 1,000 .8402 Sale 2,900 .8538 Sale 20,765 .8391 Sale 67,514 .8464 Sale 122,047 .8371 Sale 91,629 .8451 (b) Derivatives transactions (other than options) Product name, Long/Short Number of Price per (e.g. CFD) (Note 6) Securities unit (GBP) CFD Short 122047 0.8372 CFD Long 20765 0.8391 CFD Long 450 0.8448 CFD Long 67514 0.8464 CFD Long 2900 0.8537 (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 31 December 2007 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

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Barclays (BARC)
UK 100

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