Oberweis Asset Management Inc
Registered investment adviser · Lisle, IL · CRD #105471
Form ADV data as of 2026-09-01Regulatory assets
$5.06 billion
Total accounts
110
Employees
31
Disclosure events
0
Firm details
- Website: http://www.oberweis.net
- Telephone: 630-577-2300
- SEC file number: 801-35657
- Most recent Form ADV filing: 2026-03-31
- SEC record: View this firm on the SEC's IAPD site
Disciplinary disclosures
This firm answered No to every Item 11 disciplinary question on its most recent Form ADV filing.
Assets and accounts
| Provides continuous and regular supervisory or management services | Yes |
| Discretionary regulatory assets under management | $5.06 billion |
| Non-discretionary regulatory assets under management | $841,646 |
| Total regulatory assets under management | $5.06 billion |
| Discretionary accounts | 109 |
| Non-discretionary accounts | 1 |
| Total accounts | 110 |
| Regulatory assets under management attributable to non-U.S. persons | $340.6 million |
People
| Total employees (excluding clerical) | 31 |
| Employees performing investment advisory functions (including research) | 17 |
| Employees who are registered representatives of a broker-dealer | 18 |
| Employees registered as investment adviser representatives with a state | 7 |
| Employees registered as IARs for another investment adviser | 0 |
| Employees who are licensed insurance agents | 0 |
| Firms or persons who solicit advisory clients on the firm's behalf | 0 |
Custody
| Has custody of client cash or bank accounts | No |
| Has custody of client securities | No |
| A related person has custody of client cash or bank accounts | No |
| A related person has custody of client securities | No |
| The firm acts as a qualified custodian | No |
| A related person acts as a qualified custodian | No |
How the firm is compensated
Advisory services offered
Affiliated related persons
Reported conflicts of interest
Form ADV Items 8 asks advisers to disclose arrangements that may create a conflict with client interests. This firm answered Yes to:
- Buys or sells for itself securities it also recommends to clients
- Recommends securities in which it has another proprietary interest
- Recommends securities for which it serves as underwriter or general partner
- Brokers or dealers selected under 8.C.(3) are related persons
- Recommends brokers or dealers to clients
- Brokers or dealers recommended under 8.E. are related persons
- Receives soft dollar benefits
- Compensates a non-employee for client referrals
- Provides employee compensation specifically for obtaining clients
Client types
| Type of client | Clients | Assets |
|---|---|---|
| Individuals (other than high net worth individuals) | 30 | $14.7 million |
| High net worth individuals | 36 | $49.9 million |
| Investment companies | 6 | $3.24 billion |
| Pooled investment vehicles (other than investment companies and BDCs) | 1 | $48.8 million |
| Charitable organizations | Not reported | $33.3 million |
| State or municipal government entities (including government pension plans) | 7 | $1.40 billion |
| Corporations or other businesses not listed above | 12 | $278.3 million |
| Other | 16 | $1.2 million |