Wilmington Capital Securities provides financial planning, portfolio management for individuals and small businesses, and insurance. Financial planning was provided to 1–10 clients last fiscal year.
Wilmington Capital Securities reports 177 clients. They include 140 individual clients, 31 high-net-worth individuals, and 6 corporations and other businesses. Of its assets, 56.0% ($155M across 16 accounts) are managed with discretion; $122M across 242 accounts are not. A wrap fee program the firm both sponsors and manages holds $62.8M. Of its clients, 2% are outside the U.S. It advised 177 clients without assets under management last fiscal year.
| Client type | Clients | Assets |
|---|---|---|
| Individuals (other than HNW) | 79% | 20% |
| High-net-worth individuals | 18% | 78% |
| Corporations and other businesses | 3% | 2% |
Client breakdown and activity details
| Client type | Clients | Regulatory AUM | AUM share | Avg. per client |
|---|---|---|---|---|
| Individuals (other than HNW) | 140 | $54.2M | 19.6% | $387K |
| High-net-worth individuals | 31 | $216M | 78.0% | $6.97M |
| Corporations and other businesses | 6 | $6.73M | 2.4% | $1.12M |
| Total | 177 | $277M | 100% | $1.57M |
- Clients
- 140
- Regulatory AUM
- $54.2M
- AUM share
- 19.6%
- Avg. per client
- $387K
- Clients
- 31
- Regulatory AUM
- $216M
- AUM share
- 78.0%
- Avg. per client
- $6.97M
- Clients
- 6
- Regulatory AUM
- $6.73M
- AUM share
- 2.4%
- Avg. per client
- $1.12M
Total
- Clients
- 177
- Regulatory AUM
- $277M
- AUM share
- 100%
- Avg. per client
- $1.57M
- Clients outside the U.S.
- 2%
- Clients advised without assets under management last fiscal year
- 177
- Private funds advised
- 0
- Financial planning clients last fiscal year
- 1–10
Wilmington Capital Securities charges 0.50%–2.00% a year for its Asset Management Fees. The fee is billed in advance and is negotiable. The brochure also prices 2 other services, listed under fee details.
Fee details and sources
Other fees
- Fixed-Fee Financial Planning
- Comprehensive financial planning may be a fixed fee of $750 to $2,500 per plan, agreed in advance, with half billed at signing.
- Hourly Financial Planning
- Hourly financial planning, or business consulting, is billed at $150 to $350 per hour, negotiated in advance, with half billed at signing.
Wilmington Capital Group, Inc. owns 75% or more of Wilmington Capital Securities and is in turn owned by Joseph Donald Columbo (25–50%), Ronald Brett Dorushkin (25–50%) and John Mikes (25–50%). The leadership team of Wilmington Capital Securities includes President John Mikes and Chief Compliance Officer Dennis Peter Lee. It has 6 employees, 5 of them in advisory roles.
Leadership
- John MikesPresident of Broker Dealer, General Securities Principal, Elected Manager,osj Supervisor
- Dennis Peter LeeChief Compliance Officer and Aml Compliance Officer of Broker Dealer and Investment Advisor, Registered Options Principal
- Joseph Donald ColumboChairman of Broker Dealer, General Principal, Government Securities Principal, MSRB Principal, Elected Manager
- Ronald Brett DorushkinCEO of Broker Dealer, General Principal, Elected Manager
- Greg Todd VittorFINOP, Principal Financial Officer & Principal Operations Officer
Investment adviser representatives
6 representatives listed in the SEC register as of 9 October 2026.
- David Edward Astorr
- John Charles Barnes
- Ronald Brett Dorushkin
- John Sky Griffin
- Dennis Peter Lee
- James Andrew Means IV
Staff
- 6 employees
- 5 in advisory functions
- 6 state-registered reps
- 6 broker-dealer reps
- 2 insurance agents
- Owns 75% or more of Wilmington Capital Securities, LLC
Wilmington Capital Group, Inc.
Control person · since October 2007
- Owns 25% to 50% of Wilmington Capital Group, Inc.
Joseph Donald Columbo
Control person · since October 2007
- Owns 25% to 50% of Wilmington Capital Group, Inc.
Ronald Brett Dorushkin
Control person · since October 2007
- Owns 25% to 50% of Wilmington Capital Group, Inc.
John Mikes
Control person · since October 2007
Wilmington Capital Securities’ regulatory assets grew from $226M (March 2021) to $277M (March 2026); clients rose from 155 to 177 and employees fell from 7 to 6.
Figures from each annual filing
| Filed | Regulatory AUM | Clients | Employees | Offices |
|---|---|---|---|---|
| March 2026 | $277M | 177 | 6 | 4 |
| March 2025 | $258M | 192 | 6 | 4 |
| June 2024 | $243M | 223 | 6 | 4 |
| June 2023 | $223M | 215 | 6 | 4 |
| March 2022 | $237M | 163 | 6 | 4 |
| March 2021 | $226M | 155 | 7 | 4 |
Besides its headquarters, Wilmington Capital Securities has 3 offices, with 4 listed addresses in Florida and New York.
New York · 3 listed addresses
- 666 Old Country Road, Suite 505, Garden CityHQ
- 1140 Avenue of the Americas, New York
- 28 Gingerbread Lane, East Hampton
Florida · 1 listed address
- 365 Fifth Avenue South, Naples
Other business names
Wilmington Capital Securities has reported 1 other business name to the SEC.
- David E. Astorr, Inc.
Contact and registration details
- Legal name
- Wilmington Capital Securities, LLC
- Headquarters
- 666 Old Country Road, Suite 505, Garden City, NY 11530
- Website
- Not reported
- Phone
- 516-750-6200
- SEC file
- 801-101483
- Structure
- New York LLC
- Fiscal year end
- December
Wilmington Capital Securities does not have custody of client assets.
At year end, Wilmington Capital Securities’ separately managed accounts were mostly in stocks (90%).
What the accounts hold
- Stocks90%
- Bonds8%
- Cash2%
How many clients does Wilmington Capital Securities have?
Wilmington Capital Securities has 177 clients and manages $277 million for them, as of March 2026. They include 140 individual clients, 31 high-net-worth individuals, and 6 corporations and other businesses.
Source: Form ADV Part 1A, Items 5.D and 5.F, filed 30 March 2026
What services does Wilmington Capital Securities offer?
Wilmington Capital Securities provides financial planning, portfolio management for individuals and small businesses, and insurance.
Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file; Part 2A brochure, Item 4
How much does Wilmington Capital Securities charge?
Wilmington Capital Securities charges 0.50%–2.00% a year for its Asset Management Fees. The fee is billed in advance and is negotiable.
Source: WILMINGTON CAPITAL SECURITIES, LLC, filed 30 March 2026
How many financial advisors does Wilmington Capital Securities have?
Wilmington Capital Securities has 6 investment adviser representatives registered with state securities authorities, out of 6 employees, and 5 perform investment advisory functions. 6 employees are registered representatives of a broker-dealer and 2 employees are licensed insurance agents.
Source: Form ADV Part 1A, Items 5.A and 5.B, from the SEC's 2 October 2026 data file
What does Wilmington Capital Securities invest in?
At the end of its last fiscal year, Wilmington Capital Securities’ separately managed accounts held 90% exchange-traded equities, 8% investment grade corporate bonds and 2% cash and equivalents.
Source: Form ADV Part 1A, Items 5.K.(1) and 7.B, from the SEC's 2 October 2026 data file
Who owns Wilmington Capital Securities?
Wilmington Capital Securities is owned through a holding company by Joseph Donald Columbo, Ronald Brett Dorushkin and John Mikes. Its direct owner is Wilmington Capital Group, Inc. (75% or more).
Source: Form ADV Part 1A, Schedules A and B, filed 30 March 2026
How does Wilmington Capital Securities get paid?
Wilmington Capital Securities is paid through a percentage of assets under management and fixed fees. Its Form ADV lists no commissions or performance-based fees among how it is paid.
Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file
How do I contact Wilmington Capital Securities?
Wilmington Capital Securities’ main office is at 666 Old Country Road, Suite 505, Garden City, NY 11530. Its phone number is 516-750-6200.