Oak Associates Ltd
- Regulatory AUM
- $1.8B
- Discretionary
- $1.8B
- Clients
- 42
- Avg AUM / client
- $42.3M
- Accounts
- 56
- Employees
- 8
AUM over time
Annual snapshots from Form ADV filings · as of Mar 06, 2026
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| High net worth individuals | 28 | $84.6M | 4.76% |
| Investment companies | 1 | $1.5B | 84.1% |
| Pension and profit sharing plans | Fewer than 5 clients | $42.6M | 2.4% |
| Charitable organizations | 13 | $101M | 5.67% |
| Other investment advisers | Fewer than 5 clients | $52.7M | 2.97% |
| Corporations and other businesses | Fewer than 5 clients | $500K | 0.03% |
| Other | Fewer than 5 clients | $1.1M | 0.06% |
People (3)
roster as of Jul 20, 2026| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Margaret Lynn Ballinger | President / Managing Member / Chief Operating Officer / Chief Compliance Officer | Jan 1996 (31y) | 25% – 50% | |
| Robert Donald Stimpson | Managing Member / Chief Investment Officer | CFA | Jan 2019 (8y) | 50% – 75% |
| Jeffrey Butler Travis | Registered representative | CFA | Apr 2022 (4y) |
Undisclosed: 0% – 25% of the firm is not attributable from the filed Schedule A bands.
Roster from the IAPD representatives feed; ownership and acquisition dates from Form ADV Schedule A/B. "Since" is the earliest filed registration or acquisition date.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 03/06/2026 | 997 KB | View · PDF · Source ↗ |
Archived copies of the firm's regulatory filings, versioned by content hash.
Disciplinary disclosures
No disciplinary events reported on the firm's latest Form ADV filing.
How they charge
- • Percentage of assets under management
Services
- • Portfolio management for individuals/small businesses
- • Portfolio management for investment companies
- • Portfolio management for businesses/institutional clients
Custody
Reported custodians
- UBS $84.6M (5% of AUM) Mar 2026
- Huntington Bancshares, Inc $67.8M (5% of AUM) Jan 2024
- Pnc Bank $67.6M (4% of AUM) Mar 2026
- BNY Mellon $64.1M (4% of AUM) Mar 2026
- Keybank National Association $51.1M (3% of AUM) Mar 2025
- Charles Schwab & Co. $33.5M (2% of AUM) Mar 2026
Amounts as reported in ADV Item 5.K.(3) (custodians holding 10%+ of SMA assets).
Firm reports it does not have custody of client funds or securities (Item 9.A).
Source
All data on this page comes from this firm's Form ADV filings, reproduced without modification. Latest filing: Mar 06, 2026.
View current Form ADV (SEC/IAPD) ↗