# EDGAR Filing Document

**Accession Number:** 0000803020
**File Stem:** 0001213900-26-033912
**Filing Date:** 2026-3
**Character Count:** 7221
**Document Hash:** bed111b4458fbe48a3a86d4ff9cb316f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-26-033912.hdr.sgml**: 20260325

**ACCESSION NUMBER**: 0001213900-26-033912

**CONFORMED SUBMISSION TYPE**: 24F-2NT

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260325

**DATE AS OF CHANGE**: 20260325

**EFFECTIVENESS DATE**: 20260325

**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:** 24F-2NT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-09093
- **FILM NUMBER:** 26789170

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

---

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

---

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

---

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

---

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

---

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

---

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

---

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

---

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

---

### Oberweis International Opportunities Institutional Fund (Series ID: S000044469)

---

|  |  |
|:---|:---|
| Class Name                                              | Class ID   |
| Oberweis International Opportunities Institutional Fund | C000138364 |

---

### Oberweis Emerging Markets Fund (Series ID: S000061772)

---

|  |  |  |
|:---|:---|:---|
| Class Name          | Ticker Symbol | Class ID   |
| Investor Class      | OBEMX         | C000200033 |
| Institutional Class | OIEMX         | C000200034 |

---

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

---

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

---

## 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 International Opportunities Institutional Fund (Series ID: S000044469)

| Class ID   | Class Name                                              | Ticker Symbol   |
|:---|:---|:---|
| C000138364 | Oberweis International Opportunities Institutional Fund |  |

### Oberweis Emerging Markets Fund (Series ID: S000061772)

| Class ID   | Class Name          | Ticker Symbol   |
|:---|:---|:---|
| C000200033 | Investor Class      | OBEMX           |
| C000200034 | Institutional Class | OIEMX           |

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

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

## FORM 24F-2NT: Annual Notice of Securities Sold Pursuant to Rule 24f-2

### 24F-2NT: Filer Information

**Filer CIK:** 0000803020

**Is this a LIVE or TEST Filing?:** LIVE

**Filer Investment Company Type:** N-1A

### 24F-2NT: Annual Filing Information

**1. Name and address of issuer:**

- **Name of Issuer:** Oberweis Funds

- **Address:** 3333 WARRENVILLE ROAD, Lisle, IL 60532

**2. The Name and EDGAR Identifier of each series or class of securities for which this Form is filed:**

- [ ] Check box if the Form is being filed for all series and classes of the issuer.

**3. Investment Company Act File Number:** —

   **Securities Act File Number:** 033-09093

**4(a). Last day of fiscal year for which this Form is filed:** 12/31/2025

**4(b). Check box if this Form is being filed late:** [ ]

**4(c). Check box if this is the last time the issuer will be filing this Form:** [ ]

**5. Calculation of registration fee:**

- **(i) Aggregate sale price of securities sold during the fiscal year:** $1278899693.00

- **(ii) Aggregate price of securities redeemed or repurchased during the fiscal year:** $969968450.00

- **(iii) Aggregate price of securities redeemed or repurchased during any prior fiscal year:** $0.00

- **(iv) Total available redemption credits [add Items 5(ii) and 5(iii)]:** $969968450.00

- **(v) Net sales:** $308931243.00

- **(vi) Redemption credits available for use in future years:** $0.00

- **(vii) Multiplier for determining registration fee:** 0.000138100

- **(viii) Registration fee due:** $42663.40

**Signatures**

**Name and Title:** ERIC V. HANNEMANN TREASURER OF THE OBERWEIS FUNDS

**Date:** 03/20/2026

**Signature:** /s/ Eric V. Hannemann