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Nathan R Derks

Investment Adviser Representative at Landolt Securities, Inc.

West Bend, WICRD #5008765Dual-registered
No disclosures on record
Sourced from SEC IAPD & FINRA BrokerCheck
Years of Experience
16 yrs
Exams Passed
4

Professional summary

Compiled by AdvisorFinder from public regulatory records. This advisor has not provided a personal biography.

Nathan R. Derks is an investment adviser representative with Landolt Securities, Inc. in West Bend, WI, where they have been registered since 2017. They have worked in the securities industry since 2010 and have been registered with 4 firms, including IC Advisory Services, Inc. and Amerivest Investment Management, LLC. 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 Wisconsin.

Registrations & licenses

Registration type
Dual-registered
As of August 17, 2026, from the advisor's current registrations on SEC IAPD
State registrations
Investment adviser:
Wisconsin
Broker:
9 states and territories

Arizona, Colorado, Florida, Illinois, Michigan, Minnesota, Missouri, South Carolina, Wisconsin

Registration requirements vary by state and service. Contact the advisor's firm to confirm whether they can serve you.

Examinations passed
Series 66
Uniform Combined State Law Examination
Passed 5/2/2012
Series 63
Uniform Securities Agent State Law Examination
Passed 4/20/2010
SIE
Securities Industry Essentials Examination
Passed 10/1/2018
Series 7
General Securities Representative Examination
Passed 2/17/2010

Financial-firm registration history

Registration history as reported to FINRA, most recent first.

Landolt Securities, Inc.Current
9/7/2017 – West Bend, WI
IC Advisory Services, Inc.
4/17/2013 – 9/6/2017Pewaukee, WI
Amerivest Investment Management, LLC
5/10/2012 – 4/8/2013Brookfield, WI
TD Ameritrade, Inc.
5/10/2012 – 4/8/2013Brookfield, WI

Reported employment history

Employment the advisor reported on their SEC/FINRA filings, as of October 8, 2026. It may not be a complete history.

  1. THE Investment Center Inc
    Apr 2013 – Sep 2017Pewaukee, WI
  2. IC Advisory Services Inc
    Apr 2013 – Sep 2017Pewaukee, WI
  3. Landolt Securities, Inc.
    Sep 2017 – no end date reportedAntioch, IL

Official records & sources

Data as of August 11, 2026 · Source: SEC IAPD & FINRA BrokerCheck

About Landolt Securities, Inc.

These details describe the firm overall. Individual advisors' services, clients, and fees may differ.

Fee arrangements the firm reports

  • Percentage of assets under management
Firm's annual rate schedule by assets
  • First $1,000,0002.00%
  • $1,000,001 to $5,000,0001.75%
  • Over $5,000,0001.50%

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 advice and service in stocks, bonds (U.S. Gov't, corporate, and tax-free municipal), CDs, mutual funds, IRAs, options, fee-based asset management, 401K plans, 403B plans, retirement plans, insurance products (fixed and variable annuities), and alternative investments.

Portfolio Management for Individuals and Small BusinessesSelection of Other Advisers
Firm areas of expertise
StocksBondsMutual FundsIRAsOptionsFee-based Asset Management401K Plans403B PlansRetirement PlansAnnuitiesAlternative Investments+1 more

Client types the firm serves

High Net Worth

Firm assets under management

$100M–$500M

Firm disclosures (Form ADV)
Disciplinary history reportedVerify on SEC IAPD
Advisors listed on AdvisorFinder:
15
Offices listed on AdvisorFinder:
1
Main office:
Lake Bluff, IL
Founded:
1989
SEC file number:
801-135200

Counts reflect AdvisorFinder directory coverage, not necessarily the firm's complete network.

Form ADV data as of June 29, 2026

View full firm profile

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About this profile

This profile was compiled and published by AdvisorFinder as editorial content using publicly available information from the SEC's IAPD database and FINRA BrokerCheck. Nathan R Derks 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.

BrokerCheck data is used subject to the FINRA BrokerCheck Terms of Use. Found something inaccurate? Report inaccurate data and we will correct any error we introduced. Errors in the underlying BrokerCheck record itself are referred to FINRA, which maintains that record.

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