Los Angeles, CA Wilshire Boulevard Office

Team
Updated today
Oppenheimer logo

Oppenheimer

Enterprise

Firm-wide stats for Oppenheimer

Total advisors

1,172

Across 156 offices

Clients per advisor

32 Very Low

Avg AUM per client

$609,565 High

HNW client ratio

3% Low

About

Oppenheimer is a registered investment adviser and broker-dealer that serves individuals (including high net worth clients), corporations, pension and profit‑sharing plans, charitable organizations, pooled investment vehicles and IRAs. The firm offers a broad set of programs — including Fahnestock Asset Management (FAM), Alpha, consulting and retirement services, Preference and financial planning — delivered on both discretionary and non‑discretionary bases.

Advisory services span equity, balanced and fixed‑income portfolios and use strategic and tactical asset allocation, manager selection and periodic portfolio reviews; suitability reviews and branch manager oversight are part of the account‑approval and monitoring process. Consulting and retirement engagements are typically non‑discretionary and involve development of investment policy statements, asset allocation guidance and performance reporting tailored to each client’s objectives.

What is noteworthy compared with many enterprise peers is that Oppenheimer maintains custody of client assets as a qualified custodian while also operating its broker‑dealer and advisory businesses, and it reports a larger share of its advisory assets as non‑discretionary (about $22.48 billion of $36.71 billion managed). The firm also operates commission‑based advisory programs (for example, certain FAM and Alpha accounts) and runs a firm sweep program for uninvested cash that generates additional compensation to the firm, a potential conflict disclosed in its brochure.

Based on Oppenheimer

Expertise

Retirement plans for business owners (SEP, solo 401k) Business exit / sale strategy General retirement planning Wealth management

Based on Oppenheimer

Occupation focus

Executive Founder/Business Owner

Based on Oppenheimer

Location

10880 Wilshire Boulevard, 23rd Floor

Los Angeles CA 90024

Advisors at this office

26

Advisors at this office

user avatar

Irwin M

Series 63, Series 65

Los Angeles, CA

Oppenheimer

Irwin Mazur is a financial advisor at Oppenheimer with 39 years of industry experience. He holds Series 63 and Series 65 licenses and has been with Oppenheimer since 2005, following five years at Morgan Stanley Dw Inc. He serves as a trustee of his personal trust. Oppenheimer is a registered investment adviser and broker-dealer that serves individuals, corporations, pension and profit-sharing plans, and charitable organizations. The firm offers a variety of programs including asset management, consulting, and retirement services, utilizing both discretionary and non-discretionary approaches.

Retirement plans for business owners (SEP, solo 401k) Business exit / sale strategy General retirement planning Wealth management Executive Founder/Business Owner
user avatar

Adam Q

Series 66

Los Angeles, CA

Oppenheimer

Adam Quarello is a financial advisor at Oppenheimer with 24 years of industry experience. He has been with Oppenheimer since 2009 and previously worked at UBS Financial Services and Ameriprise. Outside of his advisory role, he performs music in public. Oppenheimer is a registered investment adviser and broker-dealer that serves individuals, including high net worth clients, corporations, pension and profit-sharing plans, charitable organizations, pooled investment vehicles, and IRAs. The firm offers a range of programs and advisory services across equity, balanced, and fixed-income portfolios, with a mix of discretionary and non-discretionary management.

Retirement plans for business owners (SEP, solo 401k) Business exit / sale strategy General retirement planning Wealth management Executive Founder/Business Owner
user avatar

Mark W

Series 63, Series 65

Los Angeles, CA

Oppenheimer

Mark Weinberg is a financial advisor at Oppenheimer in Los Angeles, CA, holding Series 63 and Series 65 licenses with 41 years of industry experience. He has worked at Oppenheimer since 2003 and previously with CIBC World Markets Corp. from 1998 to 2003. Oppenheimer is a registered investment adviser and broker-dealer serving individuals, corporations, pension and profit-sharing plans, charitable organizations, pooled investment vehicles, and IRAs. The firm offers a range of programs across equity, balanced, and fixed-income portfolios, employing strategic and tactical asset allocation, manager selection, and customized consulting and retirement services.

Retirement plans for business owners (SEP, solo 401k) Business exit / sale strategy General retirement planning Wealth management Executive Founder/Business Owner
user avatar

Kevin F

Series 63, Series 65

Los Angeles, CA

Oppenheimer

Kevin Friedman is a financial advisor at Oppenheimer with 31 years of industry experience. He holds Series 63 and Series 65 credentials and has been with Oppenheimer since 2017, following a brief tenure at Wells Fargo Clearing. Outside of his advisory role, he serves as a Krav Maga instructor for law enforcement and military personnel and is a member of the Tucson Delta Chi Alumni Board. Oppenheimer is a registered investment adviser and broker-dealer serving individuals, corporations, and various institutional clients. The firm provides a wide range of investment programs and advisory services, including discretionary and non-discretionary management across multiple asset classes, with a distinctive emphasis on custody of client assets and substantial non-discretionary advisory assets.

Retirement plans for business owners (SEP, solo 401k) Business exit / sale strategy General retirement planning Wealth management Executive Founder/Business Owner
user avatar

Devon S

Series 66

Los Angeles, CA

Oppenheimer

Devon Silber is a financial advisor at Oppenheimer in Los Angeles, CA, holding a Series 66 designation with seven years of industry experience. Prior to joining Oppenheimer in 2024, he worked at Morgan Stanley Private Bank and Morgan Stanley Smith Barney LLC from 2019 to 2024. Oppenheimer is a registered investment adviser and broker-dealer serving individuals, corporations, pension plans, and charitable organizations. The firm offers a range of programs and advisory services that include strategic and tactical asset allocation, manager selection, and retirement consulting, with a notable portion of its assets managed on a non-discretionary basis.

Retirement plans for business owners (SEP, solo 401k) Business exit / sale strategy General retirement planning Wealth management Executive Founder/Business Owner
user avatar

Merrell S

Series 63, Series 65

Los Angeles, CA

Oppenheimer

Merrell Siegel is a financial advisor at Oppenheimer with 44 years of industry experience. He has been with Oppenheimer since 2005 and previously worked at Morgan Stanley DW Inc. for 22 years. He holds Series 63 and Series 65 licenses. Oppenheimer is a registered investment adviser and broker-dealer serving individuals, corporations, pension and profit-sharing plans, charitable organizations, pooled investment vehicles, and IRAs. The firm offers a variety of investment and consulting services across equity, balanced, and fixed-income portfolios, utilizing both discretionary and non-discretionary approaches.

Retirement plans for business owners (SEP, solo 401k) Business exit / sale strategy General retirement planning Wealth management Executive Founder/Business Owner
user avatar

Anita D

Series 63, Series 66

Los Angeles, CA

Oppenheimer

Anita Daguilar is a financial advisor at Oppenheimer with 38 years of industry experience. She holds Series 63 and Series 66 designations and has worked at Oppenheimer since 2013, following 12 years at UBS Financial Services. Outside of her advisory role, she is involved in residential real estate. Oppenheimer is a registered investment adviser and broker-dealer serving individuals, corporations, pension and profit-sharing plans, charitable organizations, pooled investment vehicles, and IRAs. The firm offers a range of programs including asset management, consulting, and retirement services, with a focus on both discretionary and non-discretionary advisory solutions.

Retirement plans for business owners (SEP, solo 401k) Business exit / sale strategy General retirement planning Wealth management Executive Founder/Business Owner
user avatar

Robert R

Series 63, Series 65

Los Angeles, CA

Oppenheimer

Robert Rosenstock is a financial advisor with Oppenheimer, holding Series 63 and Series 65 designations and bringing 36 years of industry experience. His career includes roles at Oppenheimer Asset Management Inc., Fahnestock & Co. Inc., and CIBC World Markets Corp., where he has worked since 2002. Oppenheimer is a registered investment adviser and broker-dealer serving individuals, corporations, pension plans, charitable organizations, and pooled investment vehicles. The firm offers a range of programs across discretionary and non-discretionary platforms, with services that include strategic asset allocation, manager selection, and retirement consulting.

Retirement plans for business owners (SEP, solo 401k) Business exit / sale strategy General retirement planning Wealth management Executive Founder/Business Owner
user avatar

Randy M

Series 63

Los Angeles, CA

Oppenheimer

Randy Moshtael is a financial advisor at Oppenheimer with 43 years of industry experience. He holds a Series 63 designation and has worked at Fahnestock & Co., Inc. since 2003, following prior roles at Morgan Stanley and Citigroup Global Markets. Oppenheimer is a registered investment adviser and broker-dealer serving individuals, corporations, pension plans, charitable organizations, and pooled investment vehicles. The firm offers a broad range of programs and advisory services, including discretionary and non-discretionary portfolio management, financial planning, and consulting.

Retirement plans for business owners (SEP, solo 401k) Business exit / sale strategy General retirement planning Wealth management Executive Founder/Business Owner
user avatar

Bruce L

Series 63, Series 65

Los Angeles, CA

Oppenheimer

Bruce Lessinger is a financial advisor with Oppenheimer in Los Angeles, CA, holding Series 63 and Series 65 licenses and bringing 48 years of industry experience. He has worked at Oppenheimer since 2009, following eight years at UBS Financial Services. Oppenheimer is a registered investment adviser and broker-dealer serving individuals, corporations, pension and profit-sharing plans, charitable organizations, and pooled investment vehicles. The firm offers a broad range of programs and provides both discretionary and non-discretionary advisory services across equity, balanced, and fixed-income portfolios.

Retirement plans for business owners (SEP, solo 401k) Business exit / sale strategy General retirement planning Wealth management Executive Founder/Business Owner
user avatar

Judith G

Series 63, Series 65

Los Angeles, CA

Oppenheimer

Judith Gordon is a financial advisor with Oppenheimer in Los Angeles, CA, holding Series 63 and Series 65 designations and bringing 34 years of industry experience. She has been with Oppenheimer since 2003. Oppenheimer is a registered investment adviser and broker-dealer serving individuals, corporations, pension plans, charitable organizations, and IRAs. The firm offers a wide range of investment programs and advisory services across various asset classes, with both discretionary and non-discretionary account management.

Retirement plans for business owners (SEP, solo 401k) Business exit / sale strategy General retirement planning Wealth management Executive Founder/Business Owner
user avatar

Dylan K

Series 66

Los Angeles, CA

Oppenheimer

Dylan Kraft is a financial advisor at Oppenheimer with a Series 66 designation and no prior industry experience. He joined Oppenheimer in 2026 after a brief tenure at TierOne Financial & Insurance Services. Prior to his advisory roles, he spent several years in educational positions at Arizona State University and at the high school and junior high school levels. Oppenheimer is a registered investment adviser and broker-dealer serving individuals, corporations, pension plans, and charitable organizations. The firm offers a wide range of investment programs and advisory services, including discretionary and non-discretionary portfolio management, with a notable emphasis on maintaining custody of client assets.

Retirement plans for business owners (SEP, solo 401k) Business exit / sale strategy General retirement planning Wealth management Executive Founder/Business Owner
user avatar

Jason B

Series 63, Series 65

Los Angeles, CA

Oppenheimer

Jason Betley is a financial advisor at Oppenheimer with 18 years of industry experience. He has held Series 63 and Series 65 licenses and previously worked at Morgan Stanley before joining Oppenheimer in 2017. Based in Los Angeles, he has been with his current firm for nine years. Oppenheimer is a registered investment adviser and broker-dealer serving a diverse client base including individuals, corporations, pension plans, and charitable organizations. The firm offers a range of investment and consulting services with both discretionary and non-discretionary account management, maintaining custody of client assets while operating its broker-dealer and advisory businesses.

Retirement plans for business owners (SEP, solo 401k) Business exit / sale strategy General retirement planning Wealth management Executive Founder/Business Owner
user avatar

Gregory I

Series 63

Los Angeles, CA

Oppenheimer

Gregory Iglow is a financial advisor at Oppenheimer with 29 years of industry experience. He has held positions at Oppenheimer since 2007, following prior roles at RBC Capital Markets and Prudential Equity Group, LLC. He holds the Series 63 designation and is based in Los Angeles, CA. Oppenheimer is a registered investment adviser and broker-dealer serving individuals, corporations, pension and profit-sharing plans, charitable organizations, pooled investment vehicles, and IRAs. The firm provides a range of programs with discretionary and non-discretionary management, encompassing equity, balanced, and fixed-income portfolios along with consulting and retirement services.

Retirement plans for business owners (SEP, solo 401k) Business exit / sale strategy General retirement planning Wealth management Executive Founder/Business Owner
user avatar

Feng S

Series 63, Series 65

Los Angeles, CA

Oppenheimer

Feng Shen is a financial advisor at Oppenheimer with 24 years of industry experience. He holds Series 63 and Series 65 credentials and has previously worked at Wedbush Securities, UBS Financial Services, and Merrill. He is involved in managing the investments of his family trust. Oppenheimer is a registered investment adviser and broker-dealer that serves individuals, corporations, pension plans, and charitable organizations. The firm offers a wide range of programs and advisory services, including discretionary and non-discretionary portfolio management, financial planning, and retirement consulting.

Retirement plans for business owners (SEP, solo 401k) Business exit / sale strategy General retirement planning Wealth management Executive Founder/Business Owner
View complete list of advisors at this office
Warmer team member

Not sure where to start?

We'll help you think it through—whether you ultimately need an advisor or not. Warmer helps you compare advisors clearly, so you can choose with confidence.

Find your advisor

For advisor listings, we rely on sources including public filings and data provided by advisors, and we cannot guarantee that all information is current or accurate. Advisors are independent and may not have reviewed or updated this information. Please review an advisor’s Form ADV and do your own diligence before deciding whether to work with them.

Advisor matching and introductions are provided by FinanceHQ LLC (“FHQ”), a wholly-owned subsidiary of Warmer and an SEC-registered investment advisor. We receive compensation from certain participating advisors for introductions or referrals. This creates a conflict of interest because we have an incentive to recommend advisors who compensate us, including those who pay us more. You pay no fee to use our matching service, and advisor fees are not increased because of a referral or introduction. We do not review the ongoing performance of advisors, manage or hold assets, guarantee performance, or provide advice about specific investments.

By using our service, you agree to our Terms of Service and Advisory Agreement, and acknowledge our Privacy Policy. Please review FHQ’s ADV Part 2A and Form CRS. Logos provided by Logo.dev

© 2026 Warmer Holdings Inc. (“Warmer”)