Samuel Joshua Prusinski
Investment Adviser Representative at Commonwealth Financial Network
Professional summary
Compiled by AdvisorFinder from public regulatory records. This advisor has not provided a personal biography.
Samuel Joshua Prusinski is an investment adviser representative with Commonwealth Financial Network in Grantsburg, WI, where they have been registered since 2026, the year they entered the securities industry. 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 Wisconsin.
Office
Advisors at this office: 2
Branch office as filed with FINRA, counting current advisors in the directory who work there.
Registrations & licenses
- Investment adviser:
- Wisconsin
- Broker:
1 state or territory
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.
- Commonwealth Financial NetworkJan 2026 – Jul 2026Waltham, MA
- Scott Reid CPAsJan 2025 – Apr 2025Roseville, MN
- Wolf Tree Wealth ManagementSep 2022 – Jul 2026Grantsburg, WI
- Clifton Larson AllenJan 2024 – May 2024Minneapolis, MN
- WalmartMay 2023 – Aug 2023Garden City, SC
- Garden City ChapelMay 2023 – Aug 2023Garden City, SC
- United Parcel ServiceSep 2022 – May 2023Minneapolis, MN
- Darrell's Hardware HankMay 2020 – Sep 2021Grantsburg, WI
- Grantsburg Community PoolMay 2020 – Sep 2020Grantsburg, WI
- University of NorthwesternAug 2022 – Dec 2025Roseville, MN
- UnemployedJan 2015 – Apr 2021Grantsburg, WI
- Grantsburg High SchoolOct 2021 – Jul 2022Grantsburg, WI
- Commonwealth Financial NetworkJul 2026 – no end date reportedWaltham, MA
- Wolf Tree Wealth ManagementJul 2026 – no end date reportedGrantsburg, 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. Samuel Joshua Prusinski 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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