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 03 October 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 23,995,143 5.70% 232,086 0.06% securities (2) Derivatives 3,241,641 0.77% 2,680,985 0.64% (other than options) (3) Options and 22,319 0.01% 0 0.00%% agreements to purchase/sell Total 27,259,103 6.47% 2,913,071 0.69% (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 1,995 1.5034 Purchase 676 1.4774 Purchase 1,000 1.4800 Purchase 100 1.4971 Purchase 5,000 1.4959 Purchase 1,000 1.5178 Purchase 331 1.5098 Purchase 186 1.5092 Purchase 321 1.5092 Purchase 5,000 1.4710 Purchase 324 1.4971 Purchase 27 1.5181 Purchase 739 1.4869 Purchase 317 1.5293 Purchase 1,000 1.4978 Purchase 2,067 1.4400 Purchase 391 1.4947 Purchase 13 1.4979 Purchase 362 1.4700 Purchase 324 1.4977 Purchase 3,155 1.4800 Purchase 1,386 1.4300 Purchase 50 1.5051 Purchase 1,000 1.4921 Purchase 5,000 1.5000 Purchase 1,675 1.4798 Purchase 2,500 1.4500 Purchase 330 1.5142 Purchase 500 1.4600 Purchase 444 1.4380 Purchase 2,314 1.5123 Purchase 2,000 1.4688 Purchase 189 1.4914 Purchase 171 1.4600 Purchase 1,358 1.4890 Purchase 2,000 1.4827 Purchase 26 1.4992 Purchase 500 1.4979 Purchase 741 1.4828 Purchase 10,489 1.4300 Purchase 3,000 1.5250 Purchase 131 1.5169 Purchase 531 1.5044 Purchase 324 1.4968 Purchase 5,000 1.4678 Purchase 671 1.4714 Purchase 2,000 1.4680 Purchase 268 1.4890 Purchase 2,500 1.4300 Purchase 1,000 1.5045 Purchase 1,293 1.5288 Purchase 6,825 1.4650 Purchase 3,360 1.4879 Purchase 475 1.4897 Purchase 1,000 1.5155 Purchase 2,794 1.4200 Purchase 67 1.4877 Purchase 300 1.5071 Purchase 6,692 1.4858 Purchase 563 1.4889 Purchase 5,000 1.4600 Purchase 1,000 1.5039 Purchase 2,794 1.4929 Purchase 13,316 1.4950 Purchase 350 1.5314 Purchase 3,973 1.5099 Purchase 1,300 1.4811 Purchase 1,100 1.5155 Purchase 6 1.4881 Purchase 3,287 1.5110 Purchase 2,000 1.4947 Purchase 682 1.4935 Purchase 1,000 1.4700 Purchase 2,000 1.4842 Purchase 1,990 1.5068 Purchase 67 1.4913 Purchase 2,674 1.4958 Purchase 675 1.4594 Purchase 4,651 1.4958 Purchase 1,659 1.5061 Purchase 133 1.4953 Purchase 3,308 1.4998 Purchase 5,000 1.4710 Purchase 124 1.4992 Purchase 1,359 1.4592 Purchase 662 1.5088 Purchase 2,000 1.4578 Purchase 324 1.4975 Purchase 1,336 1.4800 Purchase 2,500 1.5074 Purchase 1,000 1.4700 Purchase 786 1.5044 Purchase 3,145 1.4989 Purchase 5,174 1.4400 Purchase 3,333 1.4999 Purchase 1,220 1.4959 Purchase 3,000 1.4796 Purchase 50,000 1.4990 Purchase 164 1.5025 Purchase 1,041 1.4400 Purchase 1,972 1.5069 Purchase 3,000 1.4730 Purchase 400 1.4988 Purchase 138 1.4942 Purchase 1,000 1.4800 Purchase 2,042 1.4579 Purchase 2,000 1.4600 Purchase 203 1.4777 Purchase 656 1.5061 Purchase 2,040 1.4700 Purchase 1,335 1.4977 Purchase 5,000 1.4740 Purchase 1,000 1.5085 Purchase 5 1.5122 Purchase 1,700 1.4987 Purchase 2,001 1.4876 Purchase 200 1.4947 Purchase 21,036 1.5130 Purchase 1,304 1.5208 Purchase 2,000 1.4485 Purchase 339 1.5044 Purchase 295 1.4895 Purchase 3,472 1.4400 Purchase 660 1.4887 Purchase 2,444 1.4320 Purchase 637 1.4979 Purchase 1,500 1.4834 Purchase 5,750 1.4940 Purchase 2,000 1.4450 Purchase 3,000 1.4919 Purchase 668 1.4700 Purchase 3,000 1.4390 Purchase 1,351 1.4676 Purchase 4,775 1.4571 Purchase 6,746 1.4730 Purchase 4,000 1.4400 Purchase 2,327 1.5361 Purchase 2,000 1.5325 Purchase 661 1.4928 Purchase 7,002 1.4200 Purchase 2,014 1.4889 Purchase 5,334 1.4889 Purchase 333 1.4991 Purchase 2,000 1.5108 Purchase 657 1.4952 Purchase 2,000 1.4903 Purchase 16 1.4972 Purchase 1,000 1.4380 Purchase 4,231 1.4600 Purchase 669 1.4934 Purchase 5,000 1.4969 Purchase 5,000 1.4200 Purchase 3,000 1.4500 Purchase 6,560 1.5149 Purchase 248 1.4971 Purchase 1,373 1.4400 Purchase 5,201 1.5280 Purchase 58 1.4865 Purchase 964 1.4890 Purchase 1,800 1.5094 Purchase 4,769 1.4678 Purchase 668 1.4700 Purchase 2,142 1.4500 Purchase 1,964 1.5015 Purchase 5,000 1.4680 Purchase 3,300 1.5019 Purchase 1,386 1.4300 Purchase 1,972 1.5095 Purchase 186 1.4863 Purchase 4,638 1.5000 Purchase 224 1.4995 Purchase 1,000 1.4600 Purchase 1,000 1.5325 Purchase 664 1.5042 Purchase 1,780 1.5357 Purchase 342 1.4617 Purchase 2,000 1.4837 Purchase 2,000 1.4794 Purchase 1,000 1.4794 Purchase 50 1.4965 Purchase 750 1.4490 Purchase 1,671 1.4959 Purchase 6,590 1.5087 Purchase 670 1.4919 Purchase 1,000 1.4888 Purchase 1,000 1.5042 Purchase 2,000 1.5130 Purchase 5,000 1.5078 Purchase 400 1.4639 Purchase 3,907 1.5250 Purchase 3,000 1.4819 Purchase 6,302 1.4750 Purchase 2,008 1.4828 Purchase 7,000 1.4300 Purchase 5,000 1.4760 Purchase 329 1.5195 Purchase 273 1.4600 Purchase 1,124 1.4995 Purchase 2,000 1.4490 Purchase 197 1.4859 Purchase 5,000 1.4700 Purchase 272 1.4700 Purchase 2,109 1.5169 Purchase 544 1.4700 Purchase 1,000 1.4832 Purchase 3,446 1.4400 Purchase 1,000 1.4895 Purchase 3,000 1.4637 Purchase 2,000 1.4995 Purchase 800 1.4875 Purchase 675 1.4800 Purchase 328 1.4800 Purchase 4,679 1.4869 Purchase 994 1.5085 Purchase 50,000 1.4400 Purchase 1,343 1.4881 Purchase 2,000 1.4885 Purchase 500 Transfer Purchase 1,968 1.4750 Purchase 990 1.5151 Purchase 3,474 1.4300 Purchase 326 1.5117 Purchase 4,500 1.4750 Purchase 2,500 1.5051 Purchase 1,500 1.4887 Purchase 3,242 1.5320 Purchase 1,000 1.4890 Purchase 38 1.4700 Purchase 1,000 1.4579 Purchase 66 1.5044 Purchase 4,400 1.4842 Purchase 5,000 1.5200 Purchase 372,047 1.4920 Purchase 1,500 1.4867 Purchase 650 1.5167 Purchase 2,000 1.5061 Purchase 1,245 1.5078 Purchase 1,311 1.4997 Purchase 1,000 1.5034 Purchase 673 1.4680 Purchase 1,667 1.4844 Purchase 2,040 1.4702 Purchase 2,000 1.4837 Purchase 6,773 1.4680 Purchase 2,900 1.4919 Purchase 4,023 1.5180 Purchase 161 1.4700 Purchase 250 1.5125 Purchase 1,000 1.4740 Purchase 1,000 1.5034 Purchase 1,367 1.4500 Purchase 333 1.4997 Purchase 1,200 1.4320 Purchase 1,707 1.4638 Purchase 323 1.4988 Purchase 3,000 1.4999 Purchase 2,427 1.4320 Purchase 5,750 1.5000 Purchase 675 1.4800 Purchase 675 1.4803 Purchase 680 1.4700 Purchase 392 1.5034 Purchase 200 1.4848 Purchase 682 1.4644 Purchase 3,426 1.4500 Purchase 5,000 1.4597 Purchase 1,500 1.4968 Purchase 300 1.4500 Purchase 5,000 1.4490 Purchase 2,000 1.4634 Purchase 2,000 1.5035 Purchase 634 1.4700 Purchase 328 1.5092 Purchase 5,000 1.4600 Purchase 1,000 1.4550 Purchase 2,000 1.4579 Purchase 5,345 1.4879 Purchase 1,324 1.4935 Purchase 3,435 1.4590 Purchase 666 1.4995 Purchase 1,000 1.4700 Purchase 3,000 1.4400 Purchase 2,000 1.4992 Purchase 364 1.4700 Purchase 6,722 1.4899 Purchase 50 1.4697 Purchase 1,326 1.4908 Purchase 2,000 1.4400 Purchase 240 1.4994 Purchase 799 1.5008 Purchase 2,500 1.4320 Purchase 335 1.4921 Purchase 322 1.5042 Purchase 187 1.5278 Purchase 3,000 1.5099 Purchase 672 1.4859 Purchase 100 1.4934 Purchase 1,000 1.5161 Purchase 2,500 1.5092 Purchase 500 1.4945 Purchase 1,666 1.4878 Sale 3,000 1.5140 Sale 1,359 1.4966 Sale 2,582 1.4200 Sale 1,867 1.5102 Sale 5,321 1.5050 Sale 1,000 1.5210 Sale 500 1.4886 Sale 4,500 1.5102 Sale 2,000 1.5099 Sale 757 1.5009 Sale 300 1.4952 Sale 21,036 1.4800 Sale 2,000 1.5053 Sale 804 1.5057 Sale 2,000 1.5304 Sale 493 1.4857 Sale 5,000 1.4972 Sale 2,000 1.5102 Sale 200 1.4816 Sale 500 1.4902 Sale 1,000 1.4982 Sale 1,000 1.4616 Sale 2,042 1.4974 Sale 2,000 1.5066 Sale 400 1.4922 Sale 1,500 1.5012 Sale 7,002 1.5002 Sale 7,380 1.5160 Sale 10,000 1.4972 Sale 1,301 1.4873 Sale 700 1.4879 Sale 900 1.4854 Sale 3,000 1.5092 Sale 2,000 1.5039 Sale 376 1.4560 Sale 500 1.4540 Sale 6,825 1.5121 Sale 1,000 1.4913 Sale 305 1.4818 Sale 5,338 1.5022 Sale 2,004 1.5012 Sale 3,000 1.5210 Sale 2,000 1.4879 Sale 2,794 1.4510 Sale 5,000 1.5002 Sale 400 1.4778 Sale 10,015 1.4500 Sale 5,300 1.5152 Sale 662 1.4891 Sale 1,227 1.4567 Sale 2,000 1.5207 Sale 4,400 1.4872 Sale 2,000 1.5012 Sale 590 1.4540 Sale 400 1.4835 Sale 18,147 1.4820 Sale 2,000 1.4913 Sale 492 1.4812 Sale 675 1.4786 Sale 500 1.4962 Sale 11,241 1.5062 Sale 445 1.4566 Sale 3,000 1.4801 Sale 3,474 1.4600 Sale 2,008 1.5130 Sale 1,000 1.4883 Sale 94 1.5022 Sale 585 1.5055 Sale 3,426 1.4751 Sale 1,259 1.4806 Sale 3,000 1.4711 Sale 155 1.4796 Sale 2,000 1.4663 Sale 1,995 1.5072 Sale 1,200 1.4774 Sale 801 1.4813 Sale 308 1.4812 Sale 541 1.4936 Sale 3,000 1.4900 Sale 5,198 1.5042 Sale 600 1.5009 Sale 500 1.4892 Sale 355 1.5027 Sale 3,000 1.5052 Sale 1,000 1.4942 Sale 373 1.5016 Sale 2,000 1.5062 Sale 6,722 1.5102 Sale 786 1.4982 Sale 10,000 1.5200 Sale 507 1.4613 Sale 1,500 1.5213 Sale 675 1.4736 Sale 2,444 1.4913 Sale 317 1.4769 Sale 481 1.4310 Sale 652 1.4540 Sale 2,677 1.5112 Sale 787 1.5104 Sale 2,000 1.5229 Sale 300 1.5122 Sale 5,000 1.5022 Sale 500 1.4957 Sale 860 1.5012 Sale 450 1.4932 Sale 500 1.4800 Sale 645 1.4800 Sale 750 1.4800 Sale 440 1.4902 Sale 500 1.4800 Sale 1,400 1.4800 Sale 450 1.4800 Sale 600 1.4800 Sale 1,250 1.4800 Sale 1,500 1.4800 Sale 350 1.4902 Sale 400 1.4800 Sale 465 1.4800 Sale 150,000 1.4800 Sale 400 1.4800 Sale 450 1.4800 Sale 268 1.4886 Sale 1,000 1.4800 Sale 450 1.4932 Sale 450 1.4902 Sale 600 1.4902 Sale 1,000 1.4800 Sale 600 1.4800 Sale 8,500 1.4800 Sale 500 1.4800 Sale 400 1.4800 Sale 1,000 1.4800 Sale 400 1.4902 Sale 1,500 1.4800 Sale 8,500 1.4800 Sale 1,000 1.4800 Sale 500 1.4800 Sale 1,325 1.4902 Sale 650 1.4902 Sale 400 1.4800 Sale 500 1.4800 Sale 1,000 1.4800 Sale 325 1.4902 Sale 1,000 1.4800 Sale 650 1.4800 Sale 500 1.4800 Sale 500 1.4933 Sale 1,000 1.4800 Sale 350 1.4902 Sale 500 1.4800 Sale 500 1.4800 Sale 350 1.4800 Sale 397,333 1.4941 Sale 750 1.4800 Sale 350 1.4933 Sale 400 1.4800 Sale 2,500 1.4800 Sale 500 1.4800 Sale 800 1.4902 Sale 550 1.4800 Sale 650 1.4932 Sale 2,000 1.4933 Sale 5,000 1.4800 Sale 350 1.4902 Sale 925 1.4800 Sale 675 1.4902 Sale 1,250 1.4800 Sale 8,400 1.4800 Sale 500 1.4800 Sale 500 1.4800 Sale 450 1.4800 Sale 500 1.4800 Sale 325 1.4902 Sale 2,000 1.4800 Sale 450 1.4800 Sale 600 1.4952 Sale 850 1.4902 Sale 500 1.4933 Sale 330 1.4800 Sale 580 1.4800 Sale 300 1.4933 Sale 660 1.4800 Sale 500 1.4800 Sale 1,000 1.4800 Sale 350 1.4800 Sale 450 1.4902 Sale 150 1.4933 Sale 500 1.4800 Sale 425 1.4800 Sale 765 1.4800 Sale 1,000 1.4800 Sale 2,300 1.4800 Sale 800 1.4800 Sale 2,300 1.4800 Sale 5,000 1.4800 Sale 1,000 1.4800 Sale 400 1.4800 Sale 885 1.4800 Sale 375 1.4902 Sale 1,000 1.4800 Sale 425 1.4800 Sale 1,250 1.4800 Sale 650 1.4800 Sale 500 1.4800 Sale 750 1.4800 Sale 750 1.4800 Sale 425 1.4902 Sale 4,000 1.4800 Sale 400 1.4902 Sale 1,000 1.4800 Sale 400 1.4800 Sale 800 1.4933 Sale 600 1.4800 Sale 1,000 1.4800 Sale 500 1.4800 Sale 350 1.4933 Sale 4,000 1.4800 Sale 1,300 1.4800 Sale 1,000 1.4800 Sale 500 1.4800 Sale 500 1.4800 Sale 1,000 1.4800 Sale 350 1.4800 Sale 1,000 1.5102 Sale 3,700 1.4930 Sale 675 1.4902 Sale 750 1.4800 Sale 150 1.4933 Sale 300 1.4800 Sale 1,250 1.4800 Sale 550 1.4933 Sale 300 1.4902 Sale 1,675 1.5022 Sale 1,000 1.4926 Sale 1,507 1.4600 Sale 2,115 1.4954 Sale 312 1.5009 Sale 10,000 1.4882 Sale 3,000 1.5020 Sale 1,001 1.4724 Sale 111 1.5219 Sale 600 1.4962 Sale 413 1.4566 Sale 5,000 1.5200 Sale 500 1.4615 Sale 900 1.4854 Sale 450 1.4800 Sale 594 1.5024 Sale 295 1.4910 Sale 1,041 1.5110 Sale 1,332 1.5026 Sale 144 1.4100 Sale 211 1.5012 Sale 4,763 1.4962 Sale 2,500 1.4962 Sale 400 1.5019 Sale 998 1.4843 Sale 150 1.4210 Sale 1,000 1.4540 Sale 3,000 1.5012 Sale 1,644 1.5016 Sale 100 1.4922 Sale 5,000 1.5012 Sale 500 1.4310 Sale 674 1.4891 Sale 243 1.4774 Sale 195 1.5054 Sale 2,427 1.4620 Sale 3,000 1.4932 Sale 2,142 1.4913 Sale 3,000 1.5200 Sale 1,000 1.4947 Sale 1,367 1.5203 Sale 3,274 1.5012 Sale 1,201 1.5009 Sale 5,000 1.5201 Sale 6,000 1.5012 Sale 1,336 1.5092 Sale 3,446 1.5000 Sale 1,671 1.5106 Sale 10,489 1.4882 Sale 2,000 1.4200 Sale 3,472 1.5102 Sale 1,500 1.4100 Sale 500 1.4800 Sale 1,276 1.5006 Sale 6,302 1.5200 Sale 5,000 1.4930 Sale 4,073 1.5112 Sale 737 1.5006 Sale 369 1.4689 Sale 500 1.5156 Sale 1,000 1.5102 Sale 6,557 1.5000 Sale 231 1.4589 Sale 750 1.5103 Sale 2,000 1.4590 Sale 305 1.4100 Sale 375 1.4933 Sale 1,250 1.4800 Sale 150 1.4540 Sale 150 1.5164 Sale 1,000 1.4800 Sale 1,373 1.4868 Sale 250 1.4932 Sale 27,500 1.4880 Sale 300 1.5207 Sale 2,000 1.5130 Sale 1,799 1.5039 Sale 5,000 1.5200 Sale 2,000 1.4974 Sale 4,775 1.4830 Sale 500 1.4800 Sale 682 1.4541 Sale 500 1.4933 Sale 3,000 1.4800 Sale 500 1.4933 Sale 300 1.4902 Sale 400 1.4800 Sale 500 1.4800 Sale 140 1.5063 Sale 500 1.4800 Sale 380 1.4800 Sale 450 1.4932 Sale 600 1.4902 Sale 500 1.4800 Sale 1,200 1.4800 Sale 525 1.4800 Sale 1,270 1.5022 Sale 5,500 1.4310 Sale 4,769 1.4962 Sale 1,972 1.5057 Sale 1,000 1.5226 Sale 1,386 1.4620 Sale 2,000 1.4658 Sale 213 1.4912 Sale 300 1.4807 Sale 2,500 1.4864 Sale 7,000 1.4962 Sale 3,000 1.5211 Sale 1,000 1.5062 Sale 1,500 1.5009 Sale 500 1.4800 Sale 2,000 1.4100 Sale 1,443 1.4962 Sale 1,386 1.4431 Sale 1,000 1.5110 Sale 400 1.5019 Sale 1,500 1.4350 Sale 867 1.4904 Sale 1,990 1.4759 Sale 563 1.4774 Sale 6,773 1.4800 Sale 300 1.4922 Sale 2,000 1.4972 Sale 5,345 1.5012 Sale 40,442 1.5120 Sale 710 1.4913 Sale 491 1.4972 Sale 5,000 1.4800 Sale 3,287 1.5012 (b) Derivatives transactions (other than options) Product name, Long/Short Number of Price per unit (e.g. CFD) (Note 6) Securities (GBP) CFD Short 4400 1.4842 CFD Short 372047 1.4919 CFD Long 3700 1.493 CFD Long 397333 1.494 (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 04 October 2007 Contact name BARCLAYS COMPLIANCE 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 DETAILS OF OPEN POSITIONS (This form should be attached to Form 8.1, Form 8.1(b)(ii) or Form 8.3, as appropriate) Product name, Written or Number of Securities to Exercise Price Type, e.g. Expiry Date e.g. call option Purchased which the option or (Note 2) American, derivative relates European etc. Option Purchased 15,216 19.3427 EURO 11/10/2007 Option Purchased 7,103 15.8111 EURO 11/10/2007 Where there are open option positions or open derivative positions (except for CFD's), 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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