Leonida Antony Kourtoglou
Investment Adviser Representative at Northern Trust Securities, Inc
Professional summary
Compiled by AdvisorFinder from public regulatory records. This advisor has not provided a personal biography.
Leonida Antony Kourtoglou is an investment adviser representative with Northern Trust Securities, Inc in Menlo Park, CA, where they have been registered since 2023. They have worked in the securities industry since 2015 and have been registered with 3 firms, including E*trade Capital Management, LLC and Edward Jones. 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 6 (investment company and variable products). They are registered to provide investment advice in California.
Registrations & licenses
- Investment adviser:
- California
- Broker:
51 states and territories
Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming
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.
- Edward JonesAug 2014 – Dec 2016St Louis, MO
- E*TRADE Securities LLCDec 2016 – Jan 2021Palo Alto, CA
- E*TRADE Capital Management LLCDec 2016 – Jan 2021Palo Alto, CA
- E*TRADE Securities LLCJan 2021 – May 2022Menlo Park, CA
- E*TRADE Capital Management LLCJan 2021 – May 2022Menlo Park, CA
- Northern Trust BankMay 2022 – Sep 2023San Francisco, CA
- Northern Trust Securities, Inc.Sep 2023 – no end date reportedMenlo Park, CA
Official records & sources
Data as of May 30, 2026 · Source: SEC IAPD & FINRA BrokerCheck
About Northern Trust 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
- 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
$1B–$5B
- Firm disclosures (Form ADV)
- Disciplinary history reportedVerify on SEC IAPD
- Advisors listed on AdvisorFinder:
- 126
- Offices listed on AdvisorFinder:
- 21
- Main office:
- Chicago, IL
- Founded:
- 1889
- SEC file number:
- 801-80781
Counts reflect AdvisorFinder directory coverage, not necessarily the firm's complete network.
Form ADV data as of July 17, 2026
View full firm profileOther advisors at Northern Trust Securities, Inc
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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. Leonida Antony Kourtoglou 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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