Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES 1. Identity of the issuer or the underlying issuer of existing shares to whichvoting rights are attached: GKN plc 2. Reason for the notification: (please state Yes/No): An acquisition or disposal of voting rights: Yes An acquisition or disposal of qualifying financial instruments which may resultin the acquisition of shares already issued to which voting rights areattached: No An acquisition or disposal of instruments with similar economic effect toqualifying financial instruments: No An event changing the breakdown of voting rights: No Other (please specify): No 3. Full name of person(s) subject to the notification obligation: Ameriprise Financial, Inc and its group 4. Full name of shareholder(s) (if different from 3.): See additional information under section 13 5. Date of the transaction and date on which the threshold is crossed orreached: 4 June 2014 6. Date on which issuer notified: 6 June 2014 7. Threshold(s) that is/are crossed or reached: Above the threshold of 5% 8. Notified details: A: Voting rights attached to shares Class/type Situation previous Resulting situation after the triggeringof shares to the triggering transaction transactionif possibleusing the Number Number of Number of Number of voting % of votingISIN CODE of Voting shares rights rights shares Rights Direct Direct Indirect Direct Indirect GB0030646508 N/A N/A 955,520 955,520 83,839,00 0.058% 5.111% US3617556069 N/A N/A 0 0 2,256 0.000% 0.000% B: Qualifying Financial Instruments Resulting situation after the triggering transaction Type of Expiration date Exercise/ Number of voting % of votingfinancial Conversion period rights that may be rightsinstrument acquired if the instrument is exercised/ converted N/A C: Financial Instruments with similar economic effect to Qualifying FinancialInstruments Resulting situation after the triggering transaction Type of Exercise Expiration Exercise/ Number of voting % of votingfinancial price date Conversion p rights rightsinstrument eriod instrument refers to Nominal Delta CFD 1,074,345 0.066% Total (A+B+C) Number of voting % of voting rightsrights 85,871,121 5.235% 9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable: Ameriprise Financial, Inc., which through intermediate holding companiescontrols the voting rights of Columbia Management Investment Advisers, ColumbiaWanger Asset Management, Threadneedle Management Luxembourg S.A. andThreadneedle Asset Management Holdings Ltd, which itself controls the votingrights of Threadneedle Asset Management Ltd, Threadneedle International Ltd andThreadneedle Pensions Ltd. Proxy Voting: 10. Name of the proxy holder: 11. Number of voting rights proxy holder will cease to hold: 12. Date on which proxy holder will cease to hold voting rights: 13. Additional information: Registered Owner A/C No. Littledown Nominees Ltd A/c ZLA08 98,296 Littledown Nominees Ltd A/c 41407 4,819,957 State Street Nominees Limited A/c XC7N 1,924,707 Chase Nominees Ltd A/c 75102 1,074,345 HSBC Global Custody Nominee A/c 847452 218,190 UK) Limited HSBC Global Custody Nominee (UK) A/c 683182 1,141,670Limited HSBC Global Custody Nominee (UK) A/c 740190 723,634Limited HSBC Global Custody Nominee (UK) A/c 739874 3,064,519Limited HSBC Global Custody Nominee (UK) A/c 740311 361,571Limited The Bank Of New York ( Nominees ) A/c PTG 15303 / 09997799 442,384Limited HSBC Global Custody Nominee (UK) A/c 811056 154,627Limited Nortrust Nominees LTD A/c BBH05 581,698 SJPUT STRAT MGD BNYM AS T'TEE A/c 2GQ6 8,760,800 William & Glyns (Isle of Man) A/c 301780 156,051Nominees Ltd Littledown Nominees Ltd A/c ZLA01 655,000 Littledown Nominees Ltd A/c ZLA03 21,736,106 The Bank Of New York ( Nominees ) A/c 52286 613,361Limited Littledown Nominees Ltd A/c 07198 859,401 Littledown Nominees Ltd A/c 27642 96,119 Littledown Nominees Ltd A/c 10478 29,874 Littledown Nominees Ltd A/c ZLA09 52,487 Littledown Nominees Ltd A/c 10479 32,674 State Street Bank & Trust Boston A/c GPE1 496,645 Littledown Nominees Ltd A/c ZLA12 960,571 Littledown Nominees Ltd A/c ZLA14 287,205 Littledown Nominees Ltd A/c 07207 1,628,941 Mellon Nominees (UK) Ltd A/c WWSF0004002 873,305 Littledown Nominees Ltd A/c 18667 946,480 Littledown Nominees Ltd A/c 10469 605,952 Littledown Nominees Ltd A/c 10496 10,823,338 Littledown Nominees Ltd A/c 10492 1,969,874 Littledown Nominees Ltd A/c 10491 7,330,055 Littledown Nominees Ltd A/c 10488 4,969,693 Littledown Nominees Ltd A/c 10495 1,875,000 Littledown Nominees Ltd A/c 10489 1,253,133 Littledown Nominees Ltd A/c 30337 288,333 Littledown Nominees Ltd A/c ZLA15 3,962,869 Ameriprise Financial Inc A/c 2,256 14. Contact name: Kerry Watson, Deputy Company Secretary 15. Contact telephone number: 01527 533245