# Oak Brook Asset Management, Corporation

> Oak Brook Asset Management, Corporation is a state-registered investment advisory firm, registered since 1994, reporting $25 million to $100 million in regulatory assets under management in its Form ADV filing dated January 15, 2026.

- CRD: 113778
- Filed as: OAK BROOK ASSET MANAGEMENT, CORPORATION
- Registration: State-registered investment adviser (status as filed: APPROVED)
- Filing period: October 2026
- Form ADV filing dated: January 15, 2026
- Public record (IAPD): https://adviserinfo.sec.gov/firm/summary/113778
- AdvisorCensus page: https://advisorcensus.com/firm/oak-brook-asset-management-corporation-113778

## Quick answers

**How is Oak Brook Asset Management, Corporation compensated?**
On its Form ADV (Item 5.E, October 2026), Oak Brook Asset Management, Corporation reports these compensation arrangements: a percentage of assets under its management; hourly charges; fixed fees (other than subscription fees). The amounts are in Item 5 of its Form ADV Part 2A brochure.

**Is Oak Brook Asset Management, Corporation registered with the SEC or a state?**
Oak Brook Asset Management, Corporation is a state-registered investment advisory firm, registered since 1994. Status as filed: APPROVED. CRD 113778.

**How much does Oak Brook Asset Management, Corporation manage?**
Oak Brook Asset Management, Corporation reports $56,031,408 in regulatory assets under management in its Form ADV filing dated January 15, 2026 (64% discretionary).

**What types of clients does Oak Brook Asset Management, Corporation serve?**
By number of clients on Form ADV Item 5.D: individuals (other than high net worth individuals) (22); high net worth individuals (12); charitable organizations (1).

**Does Oak Brook Asset Management, Corporation report any disciplinary disclosures?**
Reports no disclosure items on Form ADV Item 11. The detail of any item is on the firm's public record on IAPD: https://adviserinfo.sec.gov/firm/summary/113778

## From the Form ADV filing

### Compensation (Item 5.E)
- A percentage of assets under your management
- Hourly charges
- Fixed fees (other than subscription fees)

### Regulatory assets under management (Item 5.F)
- Total: $56,031,408
- Discretionary: $35,625,196
- Non-discretionary: $20,406,212

### Clients (Item 5.D)

| Client type | Clients | Assets |
| --- | --- | --- |
| Individuals (other than high net worth individuals) | 22 | $8,323,500 |
| High net worth individuals | 12 | $27,301,696 |
| Charitable organizations | 1 | $20,406,212 |

### Advisory services (Item 5.G)
- Financial planning services
- Portfolio management for individuals and/or small businesses
- Selection of other advisers (including private fund managers)

### Firm details
- Registered since: 1994 (32 years)
- Employees: 1 total, 1 performing advisory functions
- Wrap fee program participation: No
- States registered or notice-filed: AZ, IL
- Disclosures (Item 11): Reports no disclosure items on Form ADV Item 11.

## Source

Form ADV as filed, October 2026. Values appear as filed. Cite as: AdvisorCensus. Oak Brook Asset Management, Corporation (CRD 113778): Form ADV filing data as of October 2026.