# Oberweis Asset Management Inc

Oberweis Asset Management Inc is a Small Cap Growth Specialist based in Lisle, United States.

## Overview

- **Organization type:** Small Cap Growth Specialist
- **Headquarters:** Lisle, United States
- **Region:** North America
- **Address:** Naperville, IL, United States
- **Founded:** 1989
- **Assets under management:** Undisclosed
- **Website:** oberweis.net

## Regulatory record

- **CRD number:** 105471
- **SEC file number:** 801-35657
- **Registration status:** Registered
- **Latest Form ADV filing:** 2026-03-31T00:00:00.000Z
- **Reports private funds:** Yes
- **Private funds reported:** 0
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/105471

## About

Oberweis Asset Management is a specialist in global small- to mid-cap investing. The investment team uses academically documented market inefficiencies to identify investable opportunities globally. The firm focuses on smaller companies and a disciplined process for buying overlooked stocks at valuations that do not yet reflect full earnings potential.

## Sectors

- Enterprise Software
- Healthcare Services
- Industrial Tech
- Consumer
- Financial Services
- Technology

## People

- James Oberweis — President and Portfolio Manager
- John W. O'Brien — Senior Vice President and Portfolio Manager
- William T. (Bill) Palin — Senior Vice President and Portfolio Manager

## Questions

### Who makes investment decisions at Oberweis Asset Management?

James Oberweis serves as President and lead portfolio manager. He is supported by John W. O'Brien and William T. Palin, both Senior Vice Presidents and portfolio managers. The team form decisions through a fundamental research process focused on earnings momentum.

### What investment strategy does Oberweis Asset Management employ?

The firm pursues a small-cap growth strategy that targets U.S. companies with accelerating earnings growth, strong relative strength, and reasonable valuation. The process is fundamental and bottom-up, with a focus on identifying inflection points in corporate earnings trends.

### What kinds of clients does Oberweis Asset Management serve?

Clients include institutional investors such as pension funds, endowments, foundations, as well as high-net-worth individuals. The firm offers both mutual funds and separately managed accounts tailored to client mandates.

### Does Oberweis Asset Management participate in direct private investments or only public equities?

Based on public filings, the firm's primary activity is public equity investing in small-cap growth stocks. There is no public record of significant direct private investment activity.

### What is Oberweis Asset Management's regulatory status?

The firm is registered with the U.S. Securities and Exchange Commission as an investment adviser, filing Form ADV. It has a disclosed AUM of approximately $581 million as of December 2023.

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Last updated: 2026-08-11T15:07:41.444Z

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