Broker-dealer firm · New York, NY
E. Magnus Oppenheim & Co. Inc.
SEC-registered investment adviser · CRD 14268 · SEC 801-14051
At a glance
E. Magnus Oppenheim & Co. Inc. is an SEC-registered investment adviser based in New York, New York, with $10 million in regulatory assets under management as of its Form ADV filed March 31, 2026. Its largest client group by assets is high-net-worth individuals, and it reports 11 individual clients. By Form ADV it is a broker-dealer firm, ranked 356th of 391 broker-dealer firms and 16,301st of 17,210 SEC-registered advisers by assets.
Main office 212-983-1818emagnus.comAs filed on Form ADV
- Regulatory AUM
- $10M
- Rank among broker-dealer firms
- #356 of 391
- Rank among all SEC RIAs
- #16,301 of 17,210
- Rank in New York
- #2,469 of 2,591
- Individual clients
- 11
- High-net-worth clients
- 4
- Accounts
- 7
- Discretionary
- 100% of AUM
- Employees
- 1
- Advisory staff
- 1
- Offices
- 1
Owners and executives on its Form ADV
- Salma AbdullaManaging Director
- Jonathan E. MillerCEO
- Brian W. NeustromCCO
Custody and brokerage
Custodian
E. Magnus Oppenheim & Co. Inc.’s Form ADV lists no custodian for separately managed accounts. Firms report one only when they manage $10 million or more in those accounts.
Broker-dealer
Affiliated broker-dealer
It names affiliated broker-dealers: Parsonex Capital Markets, LLC and Parsonex Securities, Inc..
- Parsonex Capital Markets, LLC ↗CRD 169578
- Parsonex Securities, Inc. ↗CRD 144412
An introducing broker-dealer: its trades clear through another firm, which holds the brokerage accounts. Its annual audited report filed with the SEC, July 2026
Who it serves
| Client type | Clients | Regulatory AUM | Share |
|---|---|---|---|
| High-net-worth individuals | 4 | $9M | 95% |
| Individuals | 7 | $0M | 5% |
Disciplinary disclosures
E. Magnus Oppenheim & Co. Inc. 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 businesses and institutions
- Pension consulting
- Other services
How it’s paid
- A percentage of assets under management
Form ADV and brochures on the SEC’s adviser search ↗emagnus.com ↗
AtlasMembers
The full record on E. Magnus Oppenheim & Co. Inc.
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 31 peers of its type and size
- Locked
- Owners and executives, with titles and stakes
- 3 namedLocked
- Main office, fax and compliance officer
- Locked
- 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 E. Magnus Oppenheim & Co. Inc. manage?
E. Magnus Oppenheim & Co. Inc. reports $10 million in regulatory assets under management across 7 accounts, 100% of it on a discretionary basis, on its Form ADV filed March 31, 2026.
What kind of firm is E. Magnus Oppenheim & Co. Inc.?
E. Magnus Oppenheim & Co. Inc. is a broker-dealer firm by its Form ADV answers. The firm is itself registered as a broker-dealer as well as an investment adviser.
Who are E. Magnus Oppenheim & Co. Inc.’s clients?
By assets, its largest client types are high-net-worth individuals ($9 million, 4 clients); individuals ($455,161, 7 clients).
Does E. Magnus Oppenheim & Co. Inc. have any disciplinary history?
E. Magnus Oppenheim & Co. Inc. 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 E. Magnus Oppenheim & Co. Inc.’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 (2026-03-31), 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 →