# EDGAR Filing Document

**Accession Number:** 0001318342
**File Stem:** 0001213900-26-064719
**Filing Date:** 2026-6
**Character Count:** 2623
**Document Hash:** 7cea2f84b7117c07f25dd51c0116e9c5
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-26-064719.hdr.sgml**: 20260603

**ACCESSION NUMBER**: 0001213900-26-064719

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260603

**DATE AS OF CHANGE**: 20260603

**EFFECTIVENESS DATE**: 20260603

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Investment Managers Series Trust
- **CENTRAL INDEX KEY:** 0001318342

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-122901
- **FILM NUMBER:** 261060536

**BUSINESS ADDRESS:**
- **STREET 1:** 235 WEST GALENA STREET
- **CITY:** MILWAUKEE
- **STATE:** WI
- **ZIP:** 53212
- **BUSINESS PHONE:** 626-914-4141

**MAIL ADDRESS:**
- **STREET 1:** 235 WEST GALENA STREET
- **CITY:** MILWAUKEE
- **STATE:** WI
- **ZIP:** 53212

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Claymore Trust
- **DATE OF NAME CHANGE:** 20050603

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Claymore Equity Trust
- **DATE OF NAME CHANGE:** 20050218

## Series and Classes Contracts Data

### AAM/HIMCO Short Duration Fund (Series ID: S000045893)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000142996 | Class A      | ASDAX           |
| C000142997 | Class C      | ASDCX           |
| C000142998 | Class I      | ASDIX           |

**AAM/HIMCO Short Duration Fund**

Class A Shares (Ticker Symbol: ASDAX)

Class C Shares (Ticker Symbol: ASDCX)

Class I Shares (Ticker Symbol: ASDIX)

***A series of Investment Managers Series Trust***

**Supplement dated June 3, 2026, to the** 

**Summary Prospectus dated October 31, 2025.**

 

*Brian DaCorte, CFA, has been added as a portfolio manager to the AAM/HIMCO Short Duration Fund (the "Fund"). Accordingly, effective immediately, the Summary Prospectus is updated as follows:*

 

*The section "Portfolio Managers" of the Summary Prospectus is deleted in its entirety and replaced with the following:* 

**Portfolio Managers**

The following portfolio managers are jointly and primarily responsible for the day-to-day management of the Fund's portfolio*.*

---

| | |
|:---|:---|
| &nbsp;&nbsp;**Name and Title (HIMCO)** | **Managed the Fund Since:** |
| &nbsp;&nbsp;Robert Crusha, CFA, Senior Managing Director and Senior Portfolio Manager | June 30, 2014 |
| &nbsp;&nbsp;Shannon Carbray, CFA, Managing Director and Senior Portfolio Manager | June 30, 2014 |
| &nbsp;&nbsp;Brian DaCorte, CFA, Senior Investment Analyst | May 5, 2026 |

---

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***Please file this Supplement with your records****.*

 ****