# EDGAR Filing Document

**Accession Number:** 0000795264
**File Stem:** 0001104659-26-038635
**Filing Date:** 2026-4
**Character Count:** 3887
**Document Hash:** 523cf9fb989885bf2b9ef511bc0a3321
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-26-038635.hdr.sgml**: 20260401

**ACCESSION NUMBER**: 0001104659-26-038635

**CONFORMED SUBMISSION TYPE**: 497J

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260401

**DATE AS OF CHANGE**: 20260401

**EFFECTIVENESS DATE**: 20260401

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** THOMPSON IM FUNDS INC
- **CENTRAL INDEX KEY:** 0000795264

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **FISCAL YEAR END:** 1130

**FILING VALUES:**
- **FORM TYPE:** 497J
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-06418
- **FILM NUMBER:** 26829532

**BUSINESS ADDRESS:**
- **STREET 1:** 1255 FOURIER DRIVE
- **STREET 2:** SUITE 200
- **CITY:** MADISON
- **STATE:** WI
- **ZIP:** 53717
- **BUSINESS PHONE:** 608-827-5700

**MAIL ADDRESS:**
- **STREET 1:** 1255 FOURIER DRIVE
- **STREET 2:** SUITE 200
- **CITY:** MADISON
- **STATE:** WI
- **ZIP:** 53717

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** THOMPSON PLUMB FUNDS INC
- **DATE OF NAME CHANGE:** 19970401

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** THOMPSON UNGER & PLUMB FUNDS INC
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MADISON TOTAL RETURN FUND INC
- **DATE OF NAME CHANGE:** 19861222

## Series and Classes Contracts Data

### Thompson LargeCap Fund (Series ID: S000002451)

| Class ID   | Class Name             | Ticker Symbol   |
|:---|:---|:---|
| C000006581 | Thompson LargeCap Fund | thpgx           |

### Thompson Bond Fund (Series ID: S000002452)

| Class ID   | Class Name         | Ticker Symbol   |
|:---|:---|:---|
| C000006582 | Thompson Bond Fund | thopx           |

### Thompson MidCap Fund (Series ID: S000021538)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000061640 | Thompson MidCap Fund | thpmx           |

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|:---|:---|:---|
| ![](tm265508d2_497jimg01.jpg) | 411 East Wisconsin Avenue<br> Suite 2400<br> Milwaukee, Wisconsin 53202-4428<br> 414-277-5000<br> Fax 414-271-3552<br> www.quarles.com<br>Writer's Direct Dial: 414-277-5817<br> E-Mail: matthew.vogel@quarles.com | Attorneys at Law in<br> Chicago<br> Denver<br> Indianapolis<br> Madison<br> Milwaukee<br> Minneapolis<br> Naples<br> Phoenix<br> San Diego<br> St. Louis<br> Tampa<br> Tucson<br> Washington, D.C. |
|  |  | April 1, 2026 |

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**<u>VIA EDGAR</u>**

Division of Investment Management<br> U.S. Securities and Exchange Commission<br> 100 F. Street, N.E.<br> Washington, D.C. 20549

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| | |
|:---|:---|
| Re: | **Thompson IM Funds, Inc.<br> 1933 Registration No. 33-6418<br> 1940 Act File No. 811-4946** |
|  | **Rule 497(j) Certification for Prospectus and Statement of Additional Information in Connection with Post-Effective Amendment No. 56 to Registration Statement on Form N-1A** |

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Dear Sir or Madam:

Pursuant to Rule 497(j) under the Securities Act of 1933, as amended (the "Securities Act"), Thompson IM Funds, Inc. (the "Registrant") hereby certifies that the definitive Prospectus and Statement of Additional Information that would have been filed pursuant to Rule 497(c) of the Securities Act in connection with Post-Effective Amendment No. 56 (the "Amendment") to the Registration Statement on Form N-1A of the Registrant would not have contained any changes as compared to the forms of the Prospectus and Statement of Additional Information included in said Amendment. Therefore, this certification is made in lieu of filing under paragraph (c) of Rule 497.

April 1, 2026

The Amendment was filed electronically on March 27, 2026 pursuant to Rule 485(b) and automatically became effective on March 31, 2026 (SEC Accession No. 0001104659-26-035949). The definitive Prospectus and Statement of Additional Information are dated March 31, 2026.

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| |
|:---|
| Very truly yours, |
| Quarles & Brady LLP |
| /s/ Matthew C. Vogel |
| Matthew C. Vogel |

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