UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the Securities
Exchange Act of 1934

Filed by the Registrant þ
Filed by a Party other than the Registrant o

Check the appropriate box:

o Preliminary Proxy Statement

o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

o Definitive Proxy Statement

þ Definitive Additional Materials

o Soliciting Material Pursuant to §240.14a-11(c) or §240.14a-12

AIM COUNSELOR SERIES TRUST (INVESCO COUNSELOR SERIES FUND)
AIM EQUITY FUNDS (INVESCO EQUITY FUNDS)
AIM FUNDS GROUP (INVESCO FUNDS GROUP)
AIM GROWTH SERIES (INVESCO GROWTH SERIES)
AIM INVESTMENT FUNDS (INVESCO INVESTMENT FUNDS)
AIM INVESTMENT SECURITIES FUNDS (INVESCO INVESTMENT SECURITIES FUNDS)
AIM SECTOR FUNDS (INVESCO SECTOR FUNDS)
AIM TAX-EXEMPT FUNDS (INVESCO TAX-EXEMPT FUNDS)
AIM VARIABLE INSURANCE FUNDS (INVESCO VARIABLE INSURANCE FUNDS)

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

þ No fee required.

o Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.

1)	Title of each class of securities to which transaction applies:
2)	Aggregate number of securities to which transaction applies:
3)	Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):
4)	Proposed maximum aggregate value of transaction:
5)	Total fee paid:

o Fee paid previously with preliminary materials.

o Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.

1)	Amount Previously Paid:
2)	Form, Schedule or Registration Statement No.:
3)	Filing Party:
4)	Date Filed:

Shareholder Votes Needed

Proxy statements were recently mailed for several Invesco Funds as part of a plan to reorganize Invesco’s U.S. mutual fund lineup. Invesco believes this change will enhance their offering and better enable Invesco to deliver strong, consistent investment results over the long term. Please encourage shareholders in Invesco Funds to vote in the current proxy campaign which will, if approved by shareholders, provide significant product line clarity and position the funds for better scale leading to improved expense ratios for many shareholders.

• Invesco Product Line Reorganization

• Invesco Prime Income Trust Reorganization

• Proxy Voting Information