Ethan Dennis Diederich
Investment Adviser Representative at Cetera Investment Advisers LLC
Professional summary
Compiled by AdvisorFinder from public regulatory records. This advisor has not provided a personal biography.
Ethan Dennis Diederich is an investment adviser representative with Cetera Investment Advisers LLC in Fond Du Lac, WI, where they have been registered since 2026. They have worked in the securities industry since 2025. 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: 5
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.
- Cetera Financial Specialists LLCAug 2025 – no end date reportedSchaumburg, IL
- Huberty & Associates S.c. DBA Vesta CPASAug 2021 – no end date reportedFond Du Lac, WI
- VestaAug 2021 – no end date reportedFond Du Lac, WI
- Harbor Haven Health and RehabilitationApr 2020 – Jul 2021Fond du Lac, WI
- Quality Packaging Inc.Mar 2020 – Mar 2020Fond du Lac, WI
- General Nutrition CompanyDec 2019 – Feb 2020Fond du Lac, WI
- Harbor Haven Health and RehabilitationMay 2018 – Nov 2019Fond du Lac, WI
- McDonald'sFeb 2018 – Apr 2018Fond du Lac, WI
- Fond du Lac School DistrictAug 2017 – Jan 2018Fond du Lac, WI
- University of Wisconsin OshkoshAug 2023 – no end date reportedOshkosh, WI
- Moraine Park Technical CollegeJan 2020 – Aug 2022Fond du Lac, WI
- Fox Valley Technical CollegeAug 2019 – Dec 2019Chilton, WI
- Fond du Lac Public School SystemAug 2015 – Jul 2017Fond du Lac, WI
Official records & sources
Data as of August 9, 2026 · Source: SEC IAPD & FINRA BrokerCheck
About Cetera Investment Advisers 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
Advisory services, investment advisory services, custody services, insurance agency services, sweep programs, and retirement planning resources, along with access to registered and alternative investment products.
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:
- 10,459
- Offices listed on AdvisorFinder:
- 27
- Main office:
- Schaumburg, IL
- SEC file number:
- 801-20406
Counts reflect AdvisorFinder directory coverage, not necessarily the firm's complete network.
Form ADV data as of August 13, 2026
View full firm profileOther advisors at Cetera Investment Advisers 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. Ethan Dennis Diederich 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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