# EDGAR Filing Document

**Accession Number:** 0000030126
**File Stem:** 0000894189-25-004851
**Filing Date:** 2025-6
**Character Count:** 4062
**Document Hash:** 9ac7e20de5f4b2227ff725fb2a108903
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000894189-25-004851.hdr.sgml**: 20250630

**ACCESSION NUMBER**: 0000894189-25-004851

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250630

**DATE AS OF CHANGE**: 20250630

**EFFECTIVENESS DATE**: 20250630

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** RMB INVESTORS TRUST
- **CENTRAL INDEX KEY:** 0000030126

**ORGANIZATION NAME:**
- **EIN:** 133536115
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-17226
- **FILM NUMBER:** 251091286

**BUSINESS ADDRESS:**
- **STREET 1:** ONE NORTH WACKER DRIVE
- **STREET 2:** SUITE 3500
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60606
- **BUSINESS PHONE:** 8008743863

**MAIL ADDRESS:**
- **STREET 1:** ONE NORTH WACKER DRIVE
- **STREET 2:** SUITE 3500
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60606

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BURNHAM INVESTORS TRUST
- **DATE OF NAME CHANGE:** 20000327

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** DREXEL BURNHAM FUND
- **DATE OF NAME CHANGE:** 19890706

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** DREXEL EQUITY FUND INC
- **DATE OF NAME CHANGE:** 19751208

## Series and Classes Contracts Data

### RMB Fund (Series ID: S000002997)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class A    | RMBHX         | C000008242 |
| Class C    | RMBJX         | C000008244 |
| Class I    | RMBGX         | C000082356 |

---

### RMB Mendon Financial Services Fund (Series ID: S000002998)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class A    | RMBKX         | C000008245 |
| Class C    | RMBNX         | C000008247 |
| Class I    | RMBLX         | C000082357 |

---

### RMB International Fund (Series ID: S000060194)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | RMBTX         | C000197003 |

---

### RMB Small Cap Fund (Series ID: S000065670)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | RMBBX         | C000212437 |

---

### RMB SMID Cap Fund (Series ID: S000065671)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | RMBMX         | C000212439 |

---

## Series and Classes Contracts Data

### RMB Fund (Series ID: S000002997)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000008242 | Class A      | RMBHX           |
| C000008244 | Class C      | RMBJX           |
| C000082356 | Class I      | RMBGX           |

### RMB Mendon Financial Services Fund (Series ID: S000002998)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000008245 | Class A      | RMBKX           |
| C000008247 | Class C      | RMBNX           |
| C000082357 | Class I      | RMBLX           |

### RMB International Fund (Series ID: S000060194)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000197003 | Class I      | RMBTX           |

### RMB Small Cap Fund (Series ID: S000065670)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000212437 | Class I      | RMBBX           |

### RMB SMID Cap Fund (Series ID: S000065671)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000212439 | Class I      | RMBMX           |

**<u>RMB INVESTORS TRUST</u>**

**RMB Fund**

**RMB Mendon Financial Services Fund**

**RMB International Fund**

**RMB Small Cap Fund**

**RMB SMID Cap Fund**

Each a series of RMB Investors Trust (collectively, the "Funds")

**Supplement Dated July 1, 2025 to the Funds' Prospectus and Statement of Additional Information ("SAI") dated May 1, 2025**

***Notification of Adviser Name Change***

Effective July 1, 2025, Curi RMB Capital, LLC, the Funds' investment adviser, has changed its name to Curi Capital, LLC.

**Please retain this supplement with your Prospectus and SAI for future reference.**

182357103.1