# EDGAR Filing Document

**Accession Number:** 0001112996
**File Stem:** 0001193125-26-265100
**Filing Date:** 2026-6
**Character Count:** 2546
**Document Hash:** 1953680e5bbb8c59c472f40ee65b8af8
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-265100.hdr.sgml**: 20260610

**ACCESSION NUMBER**: 0001193125-26-265100

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260610

**DATE AS OF CHANGE**: 20260610

**EFFECTIVENESS DATE**: 20260610

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** AIM COUNSELOR SERIES TRUST (INVESCO COUNSELOR SERIES TRUST)
- **CENTRAL INDEX KEY:** 0001112996

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0831

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-36074
- **FILM NUMBER:** 261078232

**BUSINESS ADDRESS:**
- **STREET 1:** 11 GREENWAY PLAZA
- **STREET 2:** SUITE 1000
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77046
- **BUSINESS PHONE:** 713-626-1919

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

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AIM COUNSELOR SERIES TRUST
- **DATE OF NAME CHANGE:** 20040322

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AIM COUNSELOR SERIES FUNDS
- **DATE OF NAME CHANGE:** 20031126

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AIM COUNSELOR SERIES FUNDS INC
- **DATE OF NAME CHANGE:** 20031001

## Series and Classes Contracts Data

### Invesco Nasdaq 100 Index Fund (Series ID: S000069698)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000222272 | Class R6     |  |

**SUPPLEMENT DATED JUNE 10, 2026 TO THE CURRENT** <br>**SUMMARY PROSPECTUSES, STATUTORY PROSPECTUSES AND STATEMENTS OF ADDITIONAL INFORMATION FOR:**

**Invesco Equally-Weighted S&P 500 Fund** <br>**Invesco NASDAQ 100 Index Fund** <br>**Invesco S&P 500 Index Fund** <br>**Invesco V.I. Equally-Weighted S&P 500 Fund**

(each a "Fund" and collectively the "Funds")

This supplement amends the Summary Prospectuses, Statutory Prospectuses and Statements of Additional Information of the above referenced Funds and is in addition to any other supplement(s). *You should read this supplement in conjunction with the Summary Prospectuses, Statutory Prospectuses and Statements of Additional Information and retain it for future reference.*

Effective July 1, 2026, Tony Seisser will no longer serve as a Portfolio Manager of the Funds. All references to Mr. Seisser in the Summary Prospectuses, Statutory Prospectuses and Statements of Additional Information will be deemed to be removed at that time.

ACST-AVIF-SUMSTATSAI-SUP 061026

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