# OBERWEIS ASSET MANAGEMENT INC

OBERWEIS ASSET MANAGEMENT INC of LISLE, IL is an SEC-registered investment adviser.

## Registration

- CRD: 105471
- Type: SEC-registered investment adviser
- SEC file number: 801-35657
- Location: 3333 WARRENVILLE ROAD, SUITE 500, LISLE, IL, 60532
- Phone: 630-577-2300
- Latest filing: 2026-03-31
- Regulatory AUM: $5.1B
- Discretionary AUM: $5.1B
- Non-discretionary AUM: $842K
- Clients: 31
- Accounts: 110

## Business model

- Compensation: % of AUM, Other
- Clients served: High net worth, Pooled vehicles, Investment cos

## Officers, owners & control persons (14)

| Name | Role | Location |
| --- | --- | --- |
| James Donald Oberweis | SHAREHOLDER | — |
| James Walter Oberweis | CHAIRMAN, PRESIDENT, SHAREHOLDER AND DIRECTOR | — |
| Thomas Patrick Joyce | CHIEF COMPLIANCE OFFICER, SECRETARY | — |
| Eric Vicary Hannemann | CHIEF FINANCIAL OFFICER, TREASURER | — |
| OBERWEIS JAMES DONALD | DIRECTOR AND CHAIRMAN; DIRECTOR AND PRESIDENT; SHAREHOLDER | — |
| OBERWEIS JAMES WALTER | CHAIRMAN, PRESIDENT, SHAREHOLDER AND DIRECTOR; PRESIDENT AND SHAREHOLDER; PRESIDENT, SHAREHOLDER AND DIRECTOR (+2 more) | — |
| JOYCE PATRICK BRIAN | CHIEF COMPLIANCE OFFICER, DIRECTOR, CFO, EXEC. V.P., AND SECRETARY; DIRECTOR, CFO, EXEC. V.P. AND SECRETARY; DIRECTOR, CFO, EXEC. V.P., CCO AND SECRETARY (+1 more) | — |
| OBERWEIS JULIE KAY | SHAREHOLDER | — |
| OBERWEIS ELAINE MARIE | DIRECTOR | — |
| ROBERTS JENNIFER LYNN | SHAREHOLDER | — |
| OBERWEIS TRICIA ELAINE | SHAREHOLDER | — |
| OBERWEIS JOSEPH STEVEN | SHAREHOLDER | — |
| JOYCE THOMAS PATRICK | CHIEF COMPLIANCE OFFICER, SECRETARY | — |
| HANNEMANN ERIC VICARY | CHIEF FINANCIAL OFFICER, TREASURER | — |


## Related pages

- Form ADV Part 2 brochure: https://search.stillhousedata.com/firm/105471/brochure
- Similar advisers: https://search.stillhousedata.com/firm/105471/similar
- Related entities: https://search.stillhousedata.com/firm/105471/related
- SEC IAPD (source of record): https://adviserinfo.sec.gov/firm/summary/105471

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Source: public SEC Form ADV data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.