Denis John Massey
Investment Adviser Representative at Westmount Partners, LLC
Professional summary
Compiled by AdvisorFinder from public regulatory records. This advisor has not provided a personal biography.
Denis John Massey is an investment adviser representative with Westmount Partners, LLC in Los Angeles, CA, where they have been registered since 2016, the year they entered the securities industry. They have passed 3 industry qualification exams, including the Series 65 (investment adviser), Series 63 (state securities agent), and Series 6 (investment company and variable products). They are registered to provide investment advice in California.
Office
Advisors at this office: 25
Branch office as filed with FINRA, counting current advisors in the directory who work there.
Registrations & licenses
- Investment adviser:
- California
Registration requirements vary by state and service. Contact the advisor's firm to confirm whether they can serve you.
Financial-firm registration history
Registration history as reported to FINRA, most recent first.
Reported employment history
Employment the advisor reported on their SEC/FINRA filings, as of October 8, 2026. It may not be a complete history.
- Westmount Asset Management, LLCAug 2016 – no end date reportedLos Angeles, CA
Official records & sources
Data as of June 21, 2026 · Source: SEC IAPD & FINRA BrokerCheck
About Westmount Partners, LLC
These details describe the firm overall. Individual advisors' services, clients, and fees may differ.
Fee arrangements the firm reports
- Percentage of assets under management
Arrangements the firm reports on its Form ADV; this advisor may not charge every fee listed. Estimated from the firm's Form ADV — individual terms may differ. Not a quote.
Services the firm offers
Investment management including traditional holdings such as stocks and bonds, as well as a rich variety of alternative investments; long-term investing with latitude for short-term opportunities; financial planning; and close, personal client relationship management.
Client types the firm serves
Firm assets under management
$5B–$25B
- Firm disclosures (Form ADV)
- No disciplinary history reportedVerify on SEC IAPD
- Advisors listed on AdvisorFinder:
- 26
- Offices listed on AdvisorFinder:
- 4
- Main office:
- Los Angeles, CA
- Founded:
- 1990
- SEC file number:
- 801-72739
Counts reflect AdvisorFinder directory coverage, not necessarily the firm's complete network.
Form ADV data as of May 15, 2026
View full firm profileOther advisors at Westmount Partners, LLC
Showing 12 of 26 in the directory
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This profile was compiled and published by AdvisorFinder as editorial content using publicly available information from the SEC's IAPD database and FINRA BrokerCheck. Denis John Massey has not reviewed, approved, or endorsed this profile and is not responsible for its accuracy. Regulatory records change over time — always verify the current record directly on BrokerCheck or SEC.gov before making any decision. AdvisorFinder may be compensated for referrals generated through this page.
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