Brennan McMahon
Investment Adviser Representative at Ameriprise Financial Services, LLC
Professional summary
Compiled by AdvisorFinder from public regulatory records. This advisor has not provided a personal biography.
Brennan McMahon is an investment adviser representative with Ameriprise Financial Services, LLC in Glastonbury, CT, where they have been registered since 2025. They have worked in the securities industry since 2023 and have been registered with 3 firms, including Saybrus Equity Services, LLC and Lincoln Financial Distributors, Inc. They have passed 3 industry qualification exams, including the Series 66 (combined investment adviser and state securities agent) and Series 7 (general securities representative). They are registered to provide investment advice in Connecticut.
Office
Advisors at this office: 3
Branch office as filed with FINRA, counting current advisors in the directory who work there.
Registrations & licenses
- Investment adviser:
- Connecticut
- Broker:
2 states and territories
Connecticut, New York
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.
- Equitable Advisors, LLCJul 2022 – Sep 2022New York, NY
- Xavier HIGH SchoolAug 2014 – Jun 2018Middletown, CT
- Eastbrook FitnessMar 2021 – May 2022Mansfield, CT
- University OF ConnecticutAug 2018 – May 2022Storrs, CT
- Prospect CAFEJun 2019 – Mar 2020West Hartford, CT
- MAX FISH & Shark BARJun 2017 – Dec 2018Glastonbury, CT
- UnemployedJun 2022 – Jul 2022Glastonbury, CT
- Lincoln Financial DistributorsOct 2022 – Jan 2025Hartford, CT
- Independent Administrative Services, LLCJan 2025 – Sep 2025Clearwater, FL
- Saybrus Equity ServicesJan 2025 – Aug 2025Hartford, CT
- Ameriprise Financial Services, LLCSep 2025 – no end date reportedGlastonbury, CT
Official records & sources
Data as of August 10, 2026 · Source: SEC IAPD & FINRA BrokerCheck
About Ameriprise Financial Services, 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
- Hourly
- Fixed fee
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
Client types the firm serves
Firm assets under management
$25B+
- Firm disclosures (Form ADV)
- Disciplinary history reportedVerify on SEC IAPD
- Advisors listed on AdvisorFinder:
- 12,969
- Offices listed on AdvisorFinder:
- 26
- Main office:
- Minneapolis, MN
- SEC file number:
- 801-28543
Counts reflect AdvisorFinder directory coverage, not necessarily the firm's complete network.
Form ADV data as of September 25, 2026
View full firm profileOther advisors at Ameriprise Financial Services, LLC
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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. Brennan McMahon 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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