# EDGAR Filing Document

**Accession Number:** 0000030126
**File Stem:** 0000894189-25-006150
**Filing Date:** 2025-8
**Character Count:** 7341
**Document Hash:** 24ec039246a60a77a80030b83227e073
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000894189-25-006150.hdr.sgml**: 20250828

**ACCESSION NUMBER**: 0000894189-25-006150

**CONFORMED SUBMISSION TYPE**: 485BXT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250828

**DATE AS OF CHANGE**: 20250828

**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:** 485BXT
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-00994
- **FILM NUMBER:** 251270916

**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
**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:** 485BXT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-17226
- **FILM NUMBER:** 251270915

**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 Quality Intermediate Core Fund (Series ID: S000094873)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000263450 | Investor Class |  |
| C000263451 | Class I        |  |

### RMB Quality Intermediate Tax-Exempt Municipal Fund (Series ID: S000094874)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000263452 | Investor Class |  |
| C000263453 | Class I        |  |

Filed with the U.S. Securities and Exchange Commission on August 28, 2025

1933 Act Registration File No. 002-17226

1940 Act File No. 811-00994

**U.S. SECURITIES AND EXCHANGE COMMISSION**

Washington, D.C. 20549

**FORM N-1A**

---

| | | | | |
|:---|:---|:---|:---|:---|
| REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 | REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 | [ | X | ] |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pre-Effective Amendment No. | | [ | | ] |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Post-Effective Amendment No. | 130 | [ | X | ] |

---

and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940 [ X ] <br> Amendment No. <u>92</u> [ X ]

(Check appropriate box or boxes.)

**RMB INVESTORS TRUST**

One North Wacker Drive, Suite 3500

Chicago, Illinois 60606

(Address of Principal Executive Offices)

Registrant's Telephone Number; including Area Code: (800) 462-2392

Christopher Graff

One North Wacker Drive, Suite 3500

Chicago, Illinois 60606

(Name and Address of Agent for Service of Process)

Copies of Communications to:

Joseph M. Mannon

Vedder Price P.C.

222 North LaSalle Street

Chicago, Illinois 60601

Mark Quade

Vedder Price P.C.

222 North LaSalle Street

Chicago, Illinois 60601

Approximate Date of Proposed Public Offering: As soon as practical after the effective date of this Registration Statement

------

It is proposed that this filing will become effective (check appropriate box)

---

| | |
|:---|:---|
| | immediately upon filing pursuant to paragraph (b) |
| X | on September 22, 2025 pursuant to paragraph (b) |
|  | 60 days after filing pursuant to paragraph (a)(1) |
|  | on (date) pursuant to paragraph (a)(1) |
|  | 75 days after filing pursuant to paragraph (a)(2) |
|  | on (date) pursuant to paragraph (a)(2) of Rule 485 |

---

If appropriate, check the following box

&nbsp;&nbsp;&nbsp;&nbsp;[ X ] &nbsp;&nbsp;&nbsp;&nbsp;this post-effective amendment designates a new effective date for a previously filed post-effective amendment.

**EXPLANATORY NOTE**

This Post-Effective Amendment No. 130 to the Registration Statement of RMB Investors Trust (the "Trust") is being filed pursuant to Rule 485(b)(1)(iii) of the Securities Act of 1933, as amended (the "1933 Act"), solely for the purpose of delaying until September 22, 2025 the effectiveness of the Registrant's Post-Effective Amendment No. 129 filed on June 17, 2025, which, pursuant to Rule 485(a)(2) of the 1933 Act, was scheduled to become effective on August 31, 2025.

This Post-Effective Amendment No. 130 incorporates by reference the information contained in <u>[Parts A, B and C of Post-Effective Amendment No.](https://www.sec.gov/Archives/edgar/data/30126/000089418925004505/rmbfunds485acombined.htm)[129](https://www.sec.gov/Archives/edgar/data/30126/000089418925004505/rmbfunds485acombined.htm)</u> to the Registrant's Registration Statement, filed on June 17, 2025.

------

**SIGNATURES**

Pursuant to the requirements of the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, the Registrant has duly caused this Post-Effective Amendment No. 130 to its Registration Statement on Form N-1A to be signed below on its behalf by the undersigned, duly authorized, in the City of Chicago, and State of Illinois, on the 28th day of August, 2025.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**RMB Investors Trust** (Registrant) <br>By: <u>/s/Christopher M. Graff</u><br> Christopher Graff<br> President<br>

Pursuant to the requirements of the Securities Act of 1933, this post-effective amendment No. 130 to the Registration Statement on Form N-lA has been signed below by the following persons in the capacities and on the date(s) indicated.

---

| | | |
|:---|:---|:---|
| <u>Signature and Name</u> | <u>Title</u> | <u>Date</u> |
| <u>/s/Christopher M. Graff</u><br>Christopher M. Graff | President | August 28, 2025 |
| <u>/s/Maher A. Harb</u><br>Maher A. Harb | Chief Financial Officer and Treasurer | August 28, 2025 |
| <u>/s/ Peter Borish\*</u> <br>Peter Borish | Trustee | August 28, 2025 |
| <u>/s/ Margaret M. Eisen\*</u> <br>Margaret M. Eisen | Trustee | August 28, 2025 |
| <u>/s/ Michael A. Vardas\*</u> <br>Michael A. Vardas | Trustee | August 28, 2025 |
| \*By: Maher A. Harb | \*By: Maher A. Harb | August 28, 2025 |

---

Maher A. Harb, Attorney-in-fact pursuant to<u>[powers of attorney](https://www.sec.gov/Archives/edgar/data/30126/000089418925002979/rmb-trusteespowerofattorne.htm)</u> previously filed as exhibit (q).

<br>