# EDGAR Filing Document

**Accession Number:** 0000803020
**File Stem:** 0001213900-26-051956
**Filing Date:** 2026-5
**Character Count:** 4344
**Document Hash:** e2f0d240a45ca9d24b6db47e2f348aab
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-26-051956.hdr.sgml**: 20260505

**ACCESSION NUMBER**: 0001213900-26-051956

**CONFORMED SUBMISSION TYPE**: 497J

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260505

**DATE AS OF CHANGE**: 20260505

**EFFECTIVENESS DATE**: 20260505

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** OBERWEIS FUNDS
- **CENTRAL INDEX KEY:** 0000803020

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497J
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-09093
- **FILM NUMBER:** 26941017

**BUSINESS ADDRESS:**
- **STREET 1:** 3333 WARRENVILLE ROAD
- **STREET 2:** SUITE 500
- **CITY:** LISLE
- **STATE:** IL
- **ZIP:** 60532
- **BUSINESS PHONE:** 6305772300

**MAIL ADDRESS:**
- **STREET 1:** 3333 WARRENVILLE ROAD
- **STREET 2:** SUITE 500
- **CITY:** LISLE
- **STATE:** IL
- **ZIP:** 60532

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** OBERWEIS FUND
- **DATE OF NAME CHANGE:** 19960821

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** OBERWEIS EMERGING GROWTH FUND /IL/
- **DATE OF NAME CHANGE:** 19920703

## Series and Classes Contracts Data

### Oberweis Global Opportunities Fund (Series ID: S000010230)

| Class ID   | Class Name          | Ticker Symbol   |
|:---|:---|:---|
| C000028299 | Investor Class      | OBEGX           |
| C000186089 | Institutional Class | OBGIX           |

### Oberweis Micro-Cap Fund (Series ID: S000010231)

| Class ID   | Class Name          | Ticker Symbol   |
|:---|:---|:---|
| C000028300 | Investor Class      | OBMCX           |
| C000182411 | Institutional Class | OMCIX           |

### Oberweis Small-Cap Opportunities Fund (Series ID: S000010232)

| Class ID   | Class Name          | Ticker Symbol   |
|:---|:---|:---|
| C000028301 | Investor Class      | OBSOX           |
| C000186090 | Institutional Class | OBSIX           |

### Oberweis China Opportunities Fund (Series ID: S000010233)

| Class ID   | Class Name          | Ticker Symbol   |
|:---|:---|:---|
| C000028302 | Investor Class      | OBCHX           |
| C000186091 | Institutional Class | OCHIX           |

### Oberweis International Opportunities Fund (Series ID: S000015622)

| Class ID   | Class Name                                | Ticker Symbol   |
|:---|:---|:---|
| C000042583 | Oberweis International Opportunities Fund | OBIOX           |
| C000247124 | Institutional Class                       | OBIIX           |

### Oberweis Focused International Growth Fund (Series ID: S000075665)

| Class ID   | Class Name                                 | Ticker Symbol   |
|:---|:---|:---|
| C000234915 | Oberweis Focused International Growth Fund | OFIGX           |

---

| | | |
|:---|:---|:---|
| Vedder Price<br> 222 North LaSalle Street<br> Chicago, Illinois 60601 | T: +1 312 609 7500<br> F: +1 312 609 5005<br> vedder.com | ![](image_001.jpg) |

---

**Renee M. Hardt**

Shareholder

+1 (312) 609 7616

rhardt@vedder.com

May 5, 2026

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

Securities and Exchange Commission<br> 100 F. Street, NE<br> Washington, D.C. 20546

---

| | |
|:---|:---|
| **Re:** | **The Oberweis Funds ("Registrant")<br> Registration Nos. 33-09093 and 811-04854** |

---

To the Commission:

Pursuant to Rule 497(j) of Regulation C, under the Securities Act of 1933, in lieu of filing under paragraph (b) or (c) of Rule 497, on behalf of the Registrant, we hereby certify that (1) the forms of Prospectus and Statement of Additional Information, dated May 1, 2026, as filed on April 30, 2026 for the above-captioned Registrant that would have been filed under paragraph (b) or (c) of Rule 497 do not differ from that contained in the most recent registration statement or amendment and (2) the text of the most recent registration statement or amendment has been filed electronically.

---

| |
|:---|
| Very truly yours, |
| /s/ Renee M. Hardt |
| Renee M. Hardt |
| Shareholder |

---

RMH/ser

Vedder Price P.C. is affiliated with Vedder Price LLP, which operates in England and Wales, Vedder Price (CA), LLP, which operates in California, Vedder Price Pte. Ltd., which operates in Singapore, and Vedder Price (FL) LLP, which operates in Florida.

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