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 July, 2005
                        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:  Re: AMVESCAP PLC MOVES INTERIM RESULTS 
                                ANNOUNCEMENT TO AUGUST 2, 2005

For Immediate Release
Contact:       Doug Kidd, Managing Director, Corporate Communications
Phone:         + 1 404 479 2922 (U.S.)
Contact:       Angus Maitland, Maitland Communications
Phone:         + 44 207 379 5151 (U.K.)


London--July 20, 2005--In order that newly appointed President and Chief
Executive Officer (CEO) Martin L. Flanagan, who joins the company on August 1,
2005, may participate in the announcement of the company's interim results,
AMVESCAP PLC today announced that it has changed the announcement date of its
2005 interim results from July 28, 2005 to August 2, 2005 at noon BST (7 a.m.
EDT). A conference call to review these results will follow for members of the
investment community and general public at 2:30 p.m. BST (9:30 a.m. EDT).
Charles Brady, chairman, Martin Flanagan, president and CEO and James Robertson,
chief financial officer, will conduct this call. Contact details for the call
will be included as part of the results announcement and on AMVESCAP's Web site

The Board of Directors of AMVESCAP, consistent with its fiduciary duties, is
committed to maximizing long-term shareholder value. Working with outside
advisors, the Board has conducted a thorough review of strategic options over
recent months. The Board's unanimous conclusion is that AMVESCAP can best serve
its shareholders by continuing to advance its position as a leading independent
global investment manager offering enduring investment solutions to individual
and institutional clients, through a full range of products backed by excellent
client service. The appointment of Martin Flanagan as president and CEO, with
his deep experience in global investment management and proven leadership
skills, greatly strengthens AMVESCAP's ability to implement this strategy

AMVESCAP is a leading independent global investment manager, dedicated to
helping people worldwide build their financial security. Operating under the
AIM, AIM Trimark, INVESCO, INVESCO PERPETUAL and Atlantic Trust brands, AMVESCAP
strives to deliver outstanding products and services through a comprehensive
array of retail and institutional products for clients around the world. The
company is listed on the London, New York and Toronto stock exchanges with the
symbol "AVZ." Additional information is available at


This release may include statements that constitute "forward-looking statements"
under the United States securities laws. Forward-looking statements include
information concerning possible or assumed future results of our operations,
earnings, liquidity, cash flow and capital expenditures, industry or market
conditions, assets under management, acquisition activities and the effect of
completed acquisitions, debt levels and the ability to obtain additional
financing or make payments on our debt, regulatory developments, demand for and
pricing of our products and other aspects of our business or general economic
conditions. In addition, when used in this report, words such as "believes,"
"expects," "anticipates," "intends," "plans," "estimates," "projects" and future
or conditional verbs such as "will," "may," "could," "should" and "would," or
any other statement that necessarily depends on future events, are intended to
identify forward-looking statements.

Forward-looking statements are not guarantees of performance. They involve
risks, uncertainties and assumptions. Although we make such statements based on
assumptions that we believe to be reasonable, there can be no assurance that
actual results will not differ materially from our expectations. We caution
investors not to rely unduly on any forward-looking statements. In connection
with any forward-looking statements, you should carefully consider the areas of
risk described in our most recent annual report on Form 20-F, as filed with the
United States Securities and Exchange Commission (SEC). You may obtain these
reports from the SEC Web site at

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

Date  20 July, 2005                   By   /s/  Michael S. Perman
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                                            Michael S. Perman
                                            Company Secretary