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Gian Costeniero

22 Years of Experience
Irvine, CA

Gian Costeniero is a registered investment advisor at Warren Street Wealth Advisors, LLC, based in Irvine, CA, with 22 years of industry experience. Gian operates on a fee-only basis, meaning they do not earn commissions from product sales. Their practice areas include Estate Planning, High Net Worth, Investment Management, Retirement Planning, and 1 more. Their firm serves 461 clients with $660M in assets under management.

Compensation
Fee-Only (% of Portfolio)Fixed/Hourly
Firm Size
10 advisors
Number of Clients
461 clients
Average Client Portfolio
$1.4M average
Assets Under Management
$656.1M

Fee Structure

Minimum Investment:None
Investment management only (planning not offered)
Portfolio-Based Fees (Flat)
Portfolio ValueAnnual Fee
Any2.00%

The maximum annual fee is 2.00% of assets under management. Fees are negotiable and can be structured as a flat percentage or tiered. Account values of family members in the same household may be combined to determine breakpoints.

Fee Estimator
Your Portfolio Value
$500K
$0$500K$1M$5M$20M
Estimated Annual Fee
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Location

200 Spectrum Center Drive, Suite 300, Irvine, CA, 92618

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History

Regulatory History
Clean regulatory record

No disclosures, customer disputes, or regulatory actions on file.

Disclosures include customer complaints, regulatory actions, and other events that advisors must report to the SEC. A clean record means none have been reported.

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Other Business Activities

Gian is a drummer for the band Pacific Fallout since 2010, dedicating a few hours per week. He also owns Photography Services, a photography service and sales company, since 2011, also dedicating a few hours per week.

Employment History
Current Registrations
Warren Street Wealth Advisors, LLC
February 2026 - Present · 8 mos
Previous Registrations
Warren Street Wealth Advisors, LLC
March 2025 - December 2025 · 9 mos
Goldman Sachs & CO. LLCBroker
January 2021 - January 2025 · 4 yrs
The Ayco Company, L.P.
February 2004 - January 2025 · 20 yrs 11 mos
Mercer Allied Company, L.P.Broker
October 2003 - January 2021 · 17 yrs 3 mos
State Registrations1 state
CA
Advisor

You can work with an advisor not registered in your state. Most advisors can legally serve a small number of clients across state lines without registering.

Exams
No exam information available for this advisor.
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