# EDGAR Filing Document

**Accession Number:** 0000030126
**File Stem:** 0000894189-23-000163
**Filing Date:** 2023-1
**Character Count:** 2418
**Document Hash:** 4b0b072bacbc50fd1bf3e0737206ffd8
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000894189-23-000163.hdr.sgml**: 20230109

**ACCESSION NUMBER**: 0000894189-23-000163

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230109

**DATE AS OF CHANGE**: 20230109

**EFFECTIVENESS DATE**: 20230109

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** RMB INVESTORS TRUST
- **CENTRAL INDEX KEY:** 0000030126
- **IRS NUMBER:** 133536115
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-17226
- **FILM NUMBER:** 23517970

**BUSINESS ADDRESS:**
- **STREET 1:** 115 SOUTH LASALLE STREET
- **STREET 2:** 34TH FLOOR
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60603
- **BUSINESS PHONE:** 8008743863

**MAIL ADDRESS:**
- **STREET 1:** 115 SOUTH LASALLE STREET
- **STREET 2:** 34TH FLOOR
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60603

**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 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           |

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

**RMB Mendon Financial Services Fund** (the "Fund")

*RMBKX (Class A)<br>RMBNX (Class C)<br>RMBLX (Class I)*

**Supplement Dated January 9, 2023 to the Summary Prospectus dated May 1, 2022**<br>

*The information below replaces similar disclosure in the section of the Summary Prospectus titled: "Adviser—Portfolio Managers"*

**<u>Portfolio Managers</u>**

Anton Schutz and Dan Goldfarb are primarily responsible for the day-to-day management of the Fund's portfolio. Mr. Schutz is President and Senior Portfolio Manager of Mendon, and has served as portfolio manager of the Fund since its inception in 1999. Mr. Goldfarb is a Portfolio Manager of Mendon and has served as a portfolio manager of the Fund since May 2022.

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

<br>