SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 Under the Securities Exchange Act of 1934 For the month of January 2007 ------------ Commission File Number 001-13908 --------- AMVESCAP PLC ------------------------------------------------ (Translation of registrant's name into English) 30 Finsbury Square, London EC2A 1AG, ENGLAND -------------------------------------------------------- (Address of principal executive offices) Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F. Form 20-F X Form 40-F ----- ----- Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ------ Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ------ Indicate by check mark whether by furnishing the information contained in this Form, the registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934. Yes No X ------- ------- If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82- N/A ------------- Description of document filed: NOTIFICATION OF MAJOR INTERESTS IN SHARES ----------------------------------------- AMVESCAP PLC IMMEDIATE RELEASE 18 JANUARY 2007 CONTACT: MICHAEL S PERMAN TEL: 020 7065 3942 NOTIFICATION OF MAJOR INTERESTS IN SHARES 1. Name of company AMVESCAP PLC 2. Name of shareholder having a major interest BARCLAYS PLC THROUGH THE LEGAL ENTITIES LISTED BELOW:- Holding Barclays Capital Securities Ltd 7,788,053 Barclays Global Investors Japan Trust & Banking 844,860 Barclays Private Bank and Trust Ltd 800 Barclays Global Investors, N.A. 5,069,254 Barclays Global Investors Ltd 6,636,405 Barclays Capital Inc 222,000 Barclays Bank Trust Company Ltd 8,219 Barclays Global Investors Canada Ltd 58,628 Gerrard Ltd 476,611 Barclays Global Investors Japan Ltd 70,235 Barclays Life Assurance Co Ltd 1,109,391 Barclays Global Fund Advisors 3,028,001 GROUP HOLDING 25,312,457 3. Please state whether notification indicates that it is in respect of holding of the shareholder named in 2 above or in respect of a non-beneficial interest or in the case of an individual holder if it is a holding of that person's spouse or children under the age of 18. NOTIFICATION IS IN RESPECT OF THE SHAREHOLDERS NAMED IN 2 ABOVE. 4. Name of the registered holder(s) and, if more than one holder, the number of shares held by each of them - 5. Number of shares/amount of stock acquired NOT STATED 6. Percentage of issued class NOT STATED 7. Number of shares/amount of stock disposed - 8. Percentage of issued class - 9. Class of security ORDINARY SHARES 10. Date of transaction 16 JANUARY 2007 11. Date company informed 18 JANUARY 2007 12. Total holding following this notification 25,312,457 13. Total percentage holding of issued class following this notification 3.04% 14. Any additional information - 15. Name of contact and telephone number for queries MICHAEL S PERMAN TEL: 020 7065 3942 16. Name and signature of authorised company official responsible for making this notification Michael S Perman AMVESCAP PLC COMPANY SECRETARY Date of notification 18 JANUARY 2007 The FSA does not give any express or implied warranty as to the accuracy of this document or material and does not accept any liability for error or omission. The FSA is not liable for any damages (including, without limitation, damages for loss of business or loss of profits) arising in contract, tort or otherwise from the use of or inability to use this document, or any material contained in it, or from any action or decision taken as a result of using this document or any such material. Registered Holder Account Holding Designation Bank of New York 52,603 Barclays Capital Nominees Limited 222,000 Barclays Capital Nominees Limited 7,159,235 Barclays Global Investors 4,559,235 Barclays Global Investors Canada 58,628 Barclays Trust Co & Others 4,441 Barclays Trust Co R69 3,778 Durlacher Nominees Ltd 628,818 Gerrard Nominees Limited 630871 400 Gerrard Nominees Limited 652198 5,000 Gerrard Nominees Limited 660758 2,000 Gerrard Nominees Limited 770101 6,440 Greig Middleton Nominees Limited (GM1) 53,505 Investors Bank and Trust Co. 3,028,001 JP Morgan (BGI Custody) 6,636,405 JP Morgan (BGI Custody) 1,109,391 JPMorgan Chase 49,645 JPMorgan Chase 844,860 JPMorgan Chase Bank 79,897 Mellon Trust - US CUSTODIAN/TRUSTEE 26,691 Mitsui Asset Trust and Banking Company Limited 13,478 Mizuho Trust & Banking Co. Ltd 7,112 R C Greig Nominees Limited 193,003 R C Greig Nominees Limited GP1 18,175 R C Greig Nominees Limited SA1 11,053 R C Greig Nominees Limited a/c AK1 138,772 R C Greig Nominees Limited a/c BL1 29,993 R C Greig Nominees Limited a/c CM1 18,270 Reflex Nominees Limited 800 STATE STREET BOSTON 350,828 TOTAL 25,312,457 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. AMVESCAP PLC ------------------------------ (Registrant) Date 18 January, 2007 By /s/ Michael S. Perman ----------------- -------------------------- (Signature) Michael S. Perman Company Secretary