AUMdb

Oppenheimer Asset Management Inc.

SEC-registered Wealth Manager · Large ($10B–$100B) CRD 105559 · SEC file 801-31427 · New York, NY · WWW.OPPENHEIMER.COM
☆ Save with Pro ADV data as of Jul 01, 2026
Regulatory AUM
$21.3B
Discretionary
$16.3B
Clients
43,537
Avg AUM / client
$490K
Accounts
43,537
Employees
129

AUM over time

$9.1B $21.3B
Dec 2011 Jul 2026

Annual snapshots from Form ADV filings · as of Jul 01, 2026

Asset allocation (SMA assets by investment type)

as of Jul 01, 2026
Exchange-traded equities
$9.2B 43%
Registered investment companies (funds/ETFs)
$7.5B 35%
State & local bonds
$1.3B 6%
Investment-grade corporate bonds
$1.1B 5%
Non-exchange-traded equities
$853M 4%
Derivatives
$427M 2%
Cash & equivalents
$427M 2%
US government & agency bonds
$213M 1%
Non-investment-grade bonds
$213M 1%
Other
$213M 1%

Share of SMA assets by investment vehicle type, as filed in Form ADV Item 5.K. Dollar figures are percentages applied to total regulatory AUM.

Who they serve

Client typeClientsAUM% of AUM
Individuals (non-high net worth) 39,766 $13.1B 61.5%
High net worth individuals 2,034 $4.4B 20.4%
Pooled investment vehicles (non-investment companies) 3 $82.6M 0.39%
Pension and profit sharing plans 470 $401M 1.88%
Charitable organizations 252 $760M 3.56%
State or municipal government entities 6 $7.0M 0.03%
Corporations and other businesses 765 $1.6B 7.49%
Other 241 $1.0B 4.69%

Retirement plan clients

Plans that reported this firm as an investment service provider on Form 5500 Schedule C.

Plan Location Plan year
Foley & Lardner Llp Defined Contribution Retirement Plan Foley & Lardner Llp 2024

People (14)

roster as of Jul 20, 2026
NameRole / titleCredentialsWith firm sinceOwnership
Lowenthal, Albert, Grinsfelder Chairman/Ceo Oct 1985 (41y) 75% or more of Phase Ii Financial Ltd (indirect)
Mcnamara, Dennis, Patrick Secretary/Director Jan 2003 (24y) Less than 5%
Kaback, Deborah Chief Legal Officer Jun 2003 (23y) Less than 5%
Mckigney, Bryan, Edward President/Director Apr 2015 (11y) Less than 5%
Siegel, Douglas, Thornley Global Compliance Officer Feb 2016 (11y) Less than 5%
Robert Steven Lowenthal Director Apr 2018 (8y) Less than 5%
Montuschi, Mark, Ercole Chief Operations Officer Mar 2020 (6y) Less than 5%
Brian Alan Roth Ia Cco Mar 2021 (5y) Less than 5%
Watkins, Brad, Michael Senior Vice President Cfo Aug 2022 (4y) Less than 5%
Peter Michael Cadaret Registered representative Aug 2005 (21y)
Leo John Dierckman Registered representative Jan 2007 (20y)
Michael Dewayne Richman Registered representative CFA Jan 2007 (20y)
Elizabeth Cicolello Messina Registered representative Jan 2026 (1y)
Maurice Gordon Stuffmann Registered representative Jan 2026 (1y)

Entity owners (Schedule A/B)

EntityTitle / statusSinceSch.Ownership
E.A. Viner International Co. Direct Parent Oct 1986 A 75% or more
Oppenheimer Holdings Inc Ultimate Parent Oct 1983 B 75% or more of Ea Viner International Co (indirect)
Phase Ii Financial Ltd Holding Company Oct 1985 B 50% – 75% of Oppenheimer Holdings Inc (indirect)

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.

Retirement plans served (1)

PlanSponsorParticipantsPlan assetsAs of
Foley & Lardner Llp Defined Contribution Retirement Plan Foley & Lardner Llp 2,109 $1.7B 02/01/2024

From Form 5500 service-provider disclosures.

Documents (1 archived)

FormPeriodSize
Form ADV (full filing) 07/01/2026 2.48 MB View · PDF · Source ↗

Archived copies of the firm's regulatory filings, versioned by content hash.

Disciplinary disclosures

Regulatory · Item 11.E(2) as of Mar 19, 2024

Allegations: WITHOUT ADMITTING OR DENYING THE FINDINGS, THE FIRM CONSENTED TO THE SANCTIONS AND TO THE ENTRY OF FINDINGS THAT IT VIOLATED NYSE ARCA RULE 11.1(B). THE FINDINGS STATED THAT THE FIRM FAILED TO OBTAIN THE MOST ADVANTAGEOUS TERMS FOR A CUSTOMER OPTIONS ORDER, AND ALSO FAILED TO OBTAIN THE AGREEMENT OF ITS CUSTOMER PRIOR TO INSTRUCTING THE FLOOR BROKER TO NULLIFY AND ADJUST THE TRADE. THE FINDINGS ALSO STATED THAT THE FIRM FAILED TO ESTABLISH AND MAINTAIN SUPERVISORY SYSTEMS AND WRITTEN SUPERVISORY PROCEDURES (WSPS) REASONABLY DESIGNED TO ENSURE COMPLIANCE WITH ITS OBLIGATIONS FOR CERTAIN CUSTOMER OPTIONS ORDERS. THE FIRM DID NOT HAVE POLICIES OR PROCEDURES IN PLACE REGARDING ITS OBLIGATIONS FOR THE HANDLING OF NOT-HELD ORDERS, INCLUDING WITH RESPECT TO TRADE NULLIFICATION. ACCORDINGLY, THE FIRM VIOLATED NYSE ARCA RULES 11.18(B) AND (C). Status: Final Sanction Detail: THE FIRM WAS CENSURED AND FINED $90,000. IN CONNECTION WITH NYSE REGULATION'S INVESTIGATION, THE FIRM OFFERED THE CUSTOMER RESTITUTION IN THE AMOUNT OF $25,400. Summary: WITHOUT ADMITTING OR DENYING THE FINDINGS, THE FIRM CONSENTED TO THE SANCTIONS AND TO THE ENTRY OF FINDINGS THAT IT VIOLATED NYSE ARCA RULE 11.1(B). THE FINDINGS STATED THAT THE FIRM FAILED TO OBTAIN THE MOST ADVANTAGEOUS TERMS FOR A CUSTOMER OPTIONS ORDER, AND ALSO FAILED TO OBTAIN THE AGREEMENT OF ITS CUSTOMER PRIOR TO INSTRUCTING THE FLOOR BROKER TO NULLIFY AND ADJUST THE TRADE. THE FINDINGS ALSO STATED THAT THE FIRM FAILED TO ESTABLISH AND MAINTAIN SUPERVISORY SYSTEMS AND WRITTEN SUPERVISORY PROCEDURES (WSPS) REASONABLY DESIGNED TO ENSURE COMPLIANCE WITH ITS OBLIGATIONS FOR CERTAIN CUSTOMER OPTIONS ORDERS. THE FIRM DID NOT HAVE POLICIES OR PROCEDURES IN PLACE REGARDING ITS OBLIGATIONS FOR THE HANDLING OF NOT-HELD ORDERS, INCLUDING WITH RESPECT TO TRADE NULLIFICATION. ACCORDINGLY, THE FIRM VIOLATED NYSE ARCA RULES 11.18(B) AND (C). THE FIRM WAS CENSURED AND FINED $90,000. IN CONNECTION WITH NYSE REGULATION'S INVESTIGATION, THE FIRM OFFERED THE CUSTOMER RESTITUTION IN THE AMOUNT OF $25,400.

Regulatory as of Mar 19, 2024

Allegations: SEC ADMIN RELEASE IA 5137, MARCH 11, 2019: THE SECURITIES AND EXCHANGE COMMISSION DEEMS IT APPROPRIATE AND IN THE PUBLIC INTEREST THAT PUBLIC ADMINISTRATIVE AND CEASE-AND-DESIST PROCEEDINGS BE INSTITUTED AGAINST OPPENHEIMER & CO. INC. AND ITS AFFILIATE OPPENHEIMER ASSET MANAGEMENT INC. (TOGETHER, "RESPONDENTS"). ON THE BASIS OF THIS ORDER AND RESPONDENTS' OFFERS, THE COMMISSION FINDS THAT THESE PROCEEDINGS ARISE OUT OF BREACHES OF FIDUCIARY DUTY AND INADEQUATE DISCLOSURES BY THE RESPONDENTS IN CONNECTION WITH THEIR MUTUAL FUND SHARE CLASS SELECTION PRACTICES AND THE FEES IT RECEIVED. AT TIMES DURING THE RELEVANT PERIOD, RESPONDENTS PURCHASED, RECOMMENDED, OR HELD FOR ADVISORY CLIENTS MUTUAL FUND SHARE CLASSES THAT CHARGED 12B-1 FEES INSTEAD OF LOWER-COST SHARE CLASSES OF THE SAME FUNDS FOR WHICH THE CLIENTS WERE ELIGIBLE. RESPONDENTS RECEIVED 12B-1 FEES IN CONNECTION WITH THESE INVESTMENTS. RESPONDENTS FAILED TO DISCLOSE IN THEIR FORM ADV OR OTHERWISE THE CONFLICTS OF INTEREST RELATED TO (A) THEIR RECEIPT OF 12B-1 FEES, AND/OR (B) THEIR SELECTION OF MUTUAL FUND SHARE CLASSES THAT PAY SUCH FEES. DURING THE RELEVANT PERIOD, RESPONDENTS RECEIVED 12B-1 FEES FOR ADVISING CLIENTS TO INVEST IN OR HOLD SUCH MUTUAL FUND SHARE CLASSES. AS A RESULT OF THE CONDUCT, RESPONDENTS WILLFULLY VIOLATED SECTIONS 206(2) AND 207 OF THE ADVISERS ACT. Status: Final Sanction Detail: THE RESPONDENTS SHALL CEASE AND DESIST FROM COMMITTING OR CAUSING ANY VIOLATIONS AND ANY FUTURE VIOLATIONS OF SECTIONS 206(2) AND 207 OF THE ADVISERS ACT. RESPONDENTS ARE CENSURED, SHALL, JOINTLY AND SEVERALLY, PAY DISGORGEMENT OF $3,169,123 AND PREJUDGMENT INTEREST OF $359,254, AND SHALL COMPLY WITH THE UNDERTAKINGS ENUMERATED IN THE OFFER OF SETTLEMENT. Summary: RESPONDENTS HAVE SUBMITTED AN OFFER OF SETTLEMENT WHICH THE COMMISSION HAS DETERMINED TO ACCEPT. IN VIEW OF THE FOREGOING, THE COMMISSION DEEMS IT APPROPRIATE IN THE PUBLIC INTEREST TO IMPOSE THE SANCTIONS AGREED TO IN THE RESPONDENTS' OFFERS. RESPONDENTS SELF-REPORTED TO THE COMMISSION THE VIOLATIONS DISCUSSED IN THIS ORDER PURSUANT TO THE DIVISION OF ENFORCEMENT'S SHARE CLASS SELECTION DISCLOSURE INITIATIVE ("SCSD INITIATIVE"). ACCORDINGLY, THIS ORDER AND RESPONDENTS' OFFERS ARE BASED ON THE INFORMATION SELF-REPORTED BY RESPONDENTS.

Disclosure text reproduced verbatim from the firm's own Form ADV filings.

How they charge

  • Percentage of assets under management
  • Fixed fees

Services

  • Portfolio management for individuals/small businesses
  • Portfolio management for pooled investment vehicles
  • Portfolio management for businesses/institutional clients
  • Selection of other advisers
  • Publication of periodicals or newsletters

Custody

Reported custodians

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: Jul 01, 2026.

View current Form ADV (SEC/IAPD) ↗