# EDGAR Filing Document

**Accession Number:** 0000842790
**File Stem:** 0001193125-25-143837
**Filing Date:** 2025-6
**Character Count:** 6221
**Document Hash:** 7598b22ab5a003aa888be7eb5e0e3630
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-143837.hdr.sgml**: 20250623

**ACCESSION NUMBER**: 0001193125-25-143837

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20250623

**DATE AS OF CHANGE**: 20250620

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** AIM INVESTMENT SECURITIES FUNDS (INVESCO INVESTMENT SECURITIES FUNDS)
- **CENTRAL INDEX KEY:** 0000842790

**ORGANIZATION NAME:**
- **EIN:** 760343427
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0228

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 811-05686
- **FILM NUMBER:** 251062725

**BUSINESS ADDRESS:**
- **STREET 1:** 11 GREENWAY PLAZA
- **STREET 2:** SUITE 1000
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77046
- **BUSINESS PHONE:** 7136261919

**MAIL ADDRESS:**
- **STREET 1:** 11 GREENWAY PLAZA
- **STREET 2:** SUITE 1000
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77046

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AIM INVESTMENT SECURITIES FUNDS
- **DATE OF NAME CHANGE:** 20000921

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AIM INVESTMENT SECURITIES FUNDS INC
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AIM PRIME RATE PREMIUM INCOME FUND INC
- **DATE OF NAME CHANGE:** 19910320

## Series and Classes Contracts Data

### INVESCO Real Estate Fund (Series ID: S000000255)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000000616 | Class A        | IARAX           |
| C000000618 | Class C        | IARCX           |
| C000000619 | Class R        | IARRX           |
| C000000620 | Investor Class | REINX           |
| C000023123 | CLASS R5       | IARIX           |
| C000071216 | Class Y        | IARYX           |
| C000120676 | Class R6       | IARFX           |

**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 [X]

Filed by a Party other than the Registrant [ ]

Check the appropriate box:

[ ] Preliminary Proxy Statement

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

[ ] Definitive Proxy Statement

[ X ] Definitive Additional Materials

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

<u>AIM INVESTMENT SECURITIES FUNDS (INVESCO INVESTMENT SECURITIES FUNDS)</u> 

(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):

[X] No fee required.

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

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| | |
|:---|:---|
| 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: |
| Fee paid previously with preliminary materials. | Fee paid previously with preliminary materials. |
| 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. | 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:<u> </u> |

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![LOGO](g16082g02g02.jpg)

PO Box 211230, Eagan, MN 55121-9984 IMMEDIATE ACTION NEEDED BELOW INVESCO REAL ESTATE FUND Dear Shareholder: We are writing to ask you to call us in connection with your investment in the Invesco Real Estate Fund. <br>URGENT – PLEASE CALL NOW 1-833-876-7300 Please call our proxy solicitor, Sodali Fund Solutions, at your earliest convenience. Hours or Operation: Monday – Friday from 10:00 a.m. to 11:00 p.m. ET Saturday from 12:00 p.m. to 5:00 p.m. ET Please have your reference number(s) below ready and a representative will assist you. REFERENCE NUMBER(S): To receive a free copy of the Proxy Statement, please call the funds' solicitor toll free at 1-833-876-7300 or go to https://proxyvotinginfo.com/p/invre.

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![LOGO](g16082g03g03.jpg)

INVESCO REAL ESTATE FUND Dear Shareholder: A Special Meeting of Shareholders of the Invesco Real Estate Fund (the "Fund") is scheduled to be held on July 10, 2025. As a shareholder of record in the Fund, we ask you to vote as soon as possible. YOUR VOTE IS VERY IMPORTANT! Your Fund is proposing a change in sub-classification from "diversified" to "non-diversified" and the elimination of the related fundamental investment restriction, which will allow for increased investment flexibility and potentially improve performance. THE BOARD OF TRUSTEES RECOMMENDS YOU VOTE "FOR" THE PROPOSAL Please vote in any of the following convenient ways. Vote by Phone Speak with a proxy voting specialist today by calling 1-888-705-5299. Hours of Operation: Monday-Friday: 10 a.m. to 11 p.m. ET Saturday 12:00 pm to 5:00 pm You may also call the toll-free number on the enclosed card and follow the prompts. Vote by Internet by visiting the internet address on the enclosed card and following the instructions. Vote by Mail by completing, signing, and dating the enclosed card and returning it in the enclosed prepaid return envelope. If you have any questions or need assistance in voting, please contact our proxy solicitor toll-free at 1-888-705-5299. Thank you in advance for your support. To receive a free copy of the Proxy Statement, please call the funds' solicitor toll free at 1-888-705-5299 or go to https://proxyvotinginfo.com/p/invre