Matthew Mark Cuplin
Investment Adviser Representative at Commonwealth Financial Network
Professional summary
Compiled by AdvisorFinder from public regulatory records. This advisor has not provided a personal biography.
Matthew Mark Cuplin is an investment adviser representative with Commonwealth Financial Network in Prairie Du Sac, WI, where they have been registered since 2017. They have worked in the securities industry since 2007 and have been registered with 4 firms, including SII Investments, Inc. and Ameritas Investment Corp. They have passed 4 industry qualification exams, including the Series 66 (combined investment adviser and state securities agent), Series 7 (general securities representative), and Series 63 (state securities agent). They are registered to provide investment advice in Texas and Wisconsin.
Registrations & licenses
- Investment adviser:
- Texas, Wisconsin
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.
- SII Investments IncOct 2009 – Nov 2017Middleton, WI
- Commonwealth Financial NetworkNov 2017 – Dec 2024Waltham, MA
- Commonwealth Financial NetworkJan 2025 – Aug 2026San Diego, CA
- Osaic WealthAug 2026 – no end date reportedFitchburg, WI
Official records & sources
Data as of August 9, 2026 · Source: SEC IAPD & FINRA BrokerCheck
About Commonwealth Financial Network
These details describe the firm overall. Individual advisors' services, clients, and fees may differ.
Fee arrangements the firm reports
- Percentage of assets under management
- Commissions
- 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)
- No disciplinary history reportedVerify on SEC IAPD
- Advisors listed on AdvisorFinder:
- 2,971
- Offices listed on AdvisorFinder:
- 26
- Main office:
- Waltham, MA
- SEC file number:
- 801-41541
Counts reflect AdvisorFinder directory coverage, not necessarily the firm's complete network.
Form ADV data as of September 29, 2026
View full firm profileOther advisors at Commonwealth Financial Network
Showing 12 of 2,971 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. Matthew Mark Cuplin 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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