John Gebbia

Chief Executive Officer at

Muriel Siebert & Co., Inc.

Net worth: 3 M $ as of 2026-06-29

Finance

Consumer Services

Profile

John Michael Gebbia currently works at Muriel Siebert & Co. LLC, as Co-Chief Executive Officer & Board Member from 2017 and Park Wilshire Cos., Inc., as Director.
Mr. Gebbia received his undergraduate degree in 2015 from Boston University.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
Siebert Financial Corp. Siebert Financial Corp. Investment Banks/BrokersFinance Operates as a holding company with interests in provides retail discount brokerage and investment banking services 4.69%	2026-03-08	1,921,891 ( 4.69% )	3 M $	2026-06-29

John Gebbia active positions

Companies	Position	Start
Park Wilshire Cos., Inc. Park Wilshire Cos., Inc. Life/Health InsuranceFinance Provides insurance services	Director/Board Member	-
Muriel Siebert & Co., Inc. Muriel Siebert & Co., Inc. Investment Banks/BrokersFinance Provides brokerage services	Chief Executive Officer	2017-01-31

All active positions of John Gebbia

Training of John Gebbia

Experiences
Positions held

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Inactive

Listed companies

Private companies

See the detail of John Gebbia's experience

Connections

1st degree connections

1st degree companies

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Female

Members of the board

Executives

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Linked companies

Private companies	3
Boston University Boston University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Muriel Siebert & Co., Inc. Muriel Siebert & Co., Inc. Investment Banks/BrokersFinance Provides brokerage services	Finance
Park Wilshire Cos., Inc. Park Wilshire Cos., Inc. Life/Health InsuranceFinance Provides insurance services	Finance