Wealth manager, independent · New York, NY
Penbrook Management LLC
SEC-registered investment adviser · CRD 127269 · SEC 801-63460
At a glance
Penbrook Management LLC is an SEC-registered investment adviser based in New York, New York, with $175 million in regulatory assets under management as of its Form ADV filed May 28, 2026. Its largest client group by assets is high-net-worth individuals, and it reports 74 individual clients. By Form ADV it is a wealth manager, ranked 6,288th of 8,915 wealth managers and 12,902nd of 17,210 SEC-registered advisers by assets.
Main office 212-792-6952penbrookllc.comAs filed on Form ADV
- Regulatory AUM
- $175M
- Rank among wealth managers
- #6,288 of 8,915
- Rank among all SEC RIAs
- #12,902 of 17,210
- Rank in New York
- #1,971 of 2,591
- Individual clients
- 74
- High-net-worth clients
- 37
- Accounts
- 168
- Discretionary
- 100% of AUM
- Employees
- 4
- Advisory staff
- 4
- Offices
- 3
Owners and executives on its Form ADV
- Robert S. AndersonManaging Member
- Barbara Ann DicostanzoManaging Member, Chief Compliance Officer
Custody and brokerage
Broker-dealer
Hybrid RIA
Penbrook Management LLC is a hybrid RIA: 3 of its employees are also registered representatives of a broker-dealer.
Its Form ADV brochure (filed February 2026) names Beech Hill Securities as the broker-dealer its advisers are registered with.
Management personnel and other related persons of our firm are licensed as registered representatives of Beech Hill Securities, Inc.
Who it serves
| Client type | Clients | Regulatory AUM | Share |
|---|---|---|---|
| High-net-worth individuals | 37 | $139M | 79% |
| Charitable organizations | 3 | $10M | 5% |
| Pooled investment vehicles | 1 | $9M | 5% |
| Individuals | 37 | $9M | 5% |
| Corporations or other businesses | 2 | $5M | 3% |
| Pension and profit sharing plans | 1 | $4M | 2% |
Private funds
Penbrook Management LLC reports 1 private funds with $9M in gross assets: hedge funds (Form ADV Item 7.B).
Disciplinary disclosures
Penbrook Management LLC answers yes to 3 disclosure items in Item 11 of Form ADV (criminal, regulatory or civil matters involving the firm or its advisory affiliates). Read the details on the SEC’s adviser search ↗
Services
- Financial planning
- Portfolio management for individuals and small businesses
- Portfolio management for pooled investment vehicles
- Portfolio management for businesses and institutions
- Pension consulting
How it’s paid
- A percentage of assets under management
Form ADV and brochures on the SEC’s adviser search ↗penbrookllc.com ↗
AtlasMembers
The full record on Penbrook Management LLC
Ten years of SEC filings, its owners and contacts, and how it stacks up against its peers. Atlas members see all of it.
- Assets, accounts, clients and staff, ten years of filings
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- Growth over one, three and five years
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- Rank against 5,708 peers of its type and size
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- Owners and executives, with titles and stakes
- 2 namedLocked
- Main office, fax and compliance officer
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- Filing changes this year, with alerts
- 1Locked
Free while Atlas launches: create a free account and confirm your email. Every figure comes from SEC filings.
Background
Questions
How much does Penbrook Management LLC manage?
Penbrook Management LLC reports $175 million in regulatory assets under management across 168 accounts, 100% of it on a discretionary basis, on its Form ADV filed May 28, 2026.
What kind of firm is Penbrook Management LLC?
Penbrook Management LLC is a wealth manager by its Form ADV answers. At least half of its regulatory assets are managed for individuals and high-net-worth individuals.
Who are Penbrook Management LLC’s clients?
By assets, its largest client types are high-net-worth individuals ($139 million, 37 clients); charitable organizations ($10 million, 3 clients); pooled investment vehicles ($9 million, 1 clients).
Does Penbrook Management LLC manage private funds?
Yes. It reports 1 private funds with $9 million in gross assets, including hedge funds.
Does Penbrook Management LLC have any disciplinary history?
Penbrook Management LLC answers yes to 3 disclosure items in Item 11 of Form ADV, which covers criminal, regulatory and civil matters involving the firm or its advisory affiliates. The details are on the SEC’s adviser search.
Where these numbers come from
Every figure is Penbrook Management LLC’s own answer on its latest Form ADV, from the SEC’s registered-adviser list as of October 1, 2026: regulatory assets and accounts (Item 5.F), clients by type (5.D), employees (5.A and 5.B), compensation (5.E) and services (5.G). Custodians come from Schedule D 5.K(3) of its latest filing (2026-05-28), which lists those holding 10% or more of separately managed account assets and the amount at each. “Hybrid” means some employees are also registered representatives of a broker-dealer (Item 5.B(2)); affiliated broker-dealers are the related persons it lists in Item 7.A and Schedule D. Firm type comes from its own answers: broker-dealer firms are registered broker-dealers themselves (Item 6.A); private fund advisers manage mostly private funds (Item 7.B, 5.D); wealth managers manage at least half their assets for individuals (5.D). Ranks compare it by regulatory assets with every SEC-registered adviser and with firms of its type. Figures are as of the firm’s last annual update, so they can lag recent deals and market moves. Regulatory AUM counts assets the firm continuously supervises and can differ from what a firm markets.
Not an endorsement or a recommendation. Before hiring any adviser, read its Form ADV Part 2A brochure and check its record on the SEC’s adviser search. How to check a financial advisor →