# EDGAR Filing Document

**Accession Number:** 0001318342
**File Stem:** 0001213900-25-121547
**Filing Date:** 2025-12
**Character Count:** 2957
**Document Hash:** 3a76863cc3471a6c3414f75582a89fc6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-25-121547.hdr.sgml**: 20251215

**ACCESSION NUMBER**: 0001213900-25-121547

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 15

**FILED AS OF DATE**: 20251215

**DATE AS OF CHANGE**: 20251215

**EFFECTIVENESS DATE**: 20251215

**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:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-122901
- **FILM NUMBER:** 251570498

**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

### Robinson Tax Advantaged Income Fund (Series ID: S000046847)

---

|  |  |  |
|:---|:---|:---|
| Class Name                 | Ticker Symbol | Class ID   |
| Class A Shares             | ROBAX         | C000146391 |
| Class C Shares             | ROBCX         | C000146392 |
| Institutional Class Shares | ROBNX         | C000146393 |
| Class T Shares             | ROBDX         | C000190706 |

---

## Series and Classes Contracts Data

### Robinson Tax Advantaged Income Fund (Series ID: S000046847)

| Class ID   | Class Name                 | Ticker Symbol   |
|:---|:---|:---|
| C000146391 | Class A Shares             | ROBAX           |
| C000146392 | Class C Shares             | ROBCX           |
| C000146393 | Institutional Class Shares | ROBNX           |
| C000190706 | Class T Shares             | ROBDX           |

?xml version='1.0' encoding='ASCII'?

**Robinson Tax Advantaged Income Fund**

Class A Shares (ROBAX)

Class C Shares (ROBCX)

Class T Shares (ROBDX)

Institutional Class Shares (ROBNX)

 

*A series of Investment Managers Series Trust (the "Trust")*

**Supplement dated December 15, 2025, to the currently effective**

**Prospectus, Statement of Additional Information ("SAI")** 

**and Summary Prospectus**

**<u>Important Notice Regarding Class T Shares</u>**

Based upon the recommendation of Liberty Street Advisors, Inc., the investment advisor to the Robinson Tax Advantaged Income Fund (the "Fund"), the Board of Trustees of the Trust has approved the termination of the Fund's Class T Shares, effective immediately. As a result, effective immediately, all references to the Fund's Class T Shares in the Prospectus, SAI and Summary Prospectus are deleted in their entirety. The Fund does not currently offer Class T Shares.

 ****

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