AIM Investment Securities Funds (Invesco Investment Securities Funds)

12/11/2025 | Press release | Distributed by Public on 12/11/2025 08:31

Prospectus by Investment Company (Form 497)

SUPPLEMENT DATED DECEMBER 11, 2025 TO THE CURRENT
SUMMARY AND STATUTORY PROSPECTUSES AND STATEMENT OF ADDITIONAL INFORMATION FOR:
Invesco U.S. Government Money Portfolio
(the "Fund")
This supplement amends the Summary and Statutory Prospectuses and Statement of Additional Information ("SAI") for the above referenced Fund and is in addition to any other supplement(s), unless otherwise specified. You should read this supplement in conjunction with the Summary and Statutory Prospectuses and SAI and retain it for future reference.
The following information replaces in its entirety the information appearing under the heading "Fees and Expenses of the Fund" in the Prospectuses:
This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund.
The table and Examples below do not reflect any transaction fees that may be charged by financial intermediaries, or commissions that a shareholder may be required to pay directly to its financial intermediary when buying or selling Class Y or Class R6 shares. 
Shareholder Fees (fees paid directly from your investment)
Class:
Invesco Cash Reserve
C
R
Y
R6
Maximum Sales Charge (Load) Imposed on Purchases (as a
percentage of offering price)
None
None
None
None
None
Maximum Deferred Sales Charge (Load) (as a percentage of
original purchase price or redemption proceeds, whichever is less)
None1
1.00%
None
None
None
 
Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)
Class:
Invesco Cash Reserve
C
R
Y
R6
Management Fees2
0.15%
0.15%
0.15%
0.15%
0.15%
Distribution and/or Service (12b-1) Fees
0.15
1.00
0.50
None
None
Other Expenses
0.30
0.30
0.30
0.30
0.11
Total Annual Fund Operating Expenses
0.60
1.45
0.95
0.45
0.26
(1)
A contingent deferred sales charge may apply in some cases. See "Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs)."
(2)
Management fees have been restated to reflect current fees.
Example.This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.
The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. This Example does not include commissions and/or other forms of compensation that investors may pay on transactions in Class Y and Class R6 shares. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same.
Although your actual costs may be higher or lower, based on these assumptions, your costs would be: 
1 Year
3 Years
5 Years
10 Years
Invesco Cash Reserve
$61
$192
$335
$750
Class C
$248
$459
$792
$1,504
Class R
$97
$303
$525
$1,166
Class Y
$46
$144
$252
$567
Class R6
$27
$84
$146
$331
O-GMKT-SUMSTATSAI-SUP
You would pay the following expenses if you did not redeem your shares: 
1 Year
3 Years
5 Years
10 Years
Invesco Cash Reserve
$61
$192
$335
$750
Class C
$148
$459
$792
$1,504
Class R
$97
$303
$525
$1,166
Class Y
$46
$144
$252
$567
Class R6
$27
$84
$146
$331
The following information replaces the corresponding information for the Fund in the subsection titled "Investment Adviser" under the section "INVESTMENT ADVISORY AND OTHER SERVICES" in the Fund's SAI:  
Fund
Annual Rate/Net Assets Per Advisory
Agreement
Invesco U.S. Government Money Portfolio
All Assets 0.15%
O-GMKT-SUMSTATSAI-SUP
AIM Investment Securities Funds (Invesco Investment Securities Funds) published this content on December 11, 2025, and is solely responsible for the information contained herein. Distributed via Edgar on December 11, 2025 at 14:31 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]