EXECUTIVE COMMITTEE Archives - National Hellenic Museum

The National Hellenic Museum will be closed to the public from 10:00 AM to 1:30 PM on Friday, June 16 due to a private event.

John P. Calamos, Sr. – Chairman

Posted on: May 9th, 2014

Founder, Chairman, and Global Chief Investment Officer, Calamos Investments John P. Calamos, Sr. is Chairman and Global CIO of Calamos Investments, a firm he founded in 1977. With origins as an institutional convertible bond manager, […]

Peter Parthenis- Vice Chairman

Posted on: May 15th, 2014

Founder, Chairman of the Board, Grecian Delight Foods, Inc. Peter is the founder and Chairman of Pure Mediterranean Foods and Grecian Delight Foods. Over the course of his illustrious career, Peter has not only built […]

Aristotle P. Halikias- Vice Chairman

Posted on: May 9th, 2014

Chairman of the Board, Republic Bank, President, Inter Continental Real Estate & Development Aristotle P. Halikias served as Chairman of the National Hellenic Museum Board of Trustees from 2005-2011, overseeing the successful completion of the […]

Konstantinos Armiros- Vice Chairman and Secretary

Posted on: August 26th, 2021

Dino Armiros serves as Vice Chair of the Executive Committee of the National Hellenic Museum and as Secretary of the organization.  He has been involved with the Museum since 1993 in various capacities including serving […]

Bill J. Vranas-Treasurer

Posted on: May 15th, 2014

Partner, Vranas & Vlahos Accountants, Partner, Comptroller, Treasurer, Vranas & Chioros Realty Group, Inc., Ltd. Bill J. Vranas is an Accountant and Real Estate Broker for more than 30 years. Mr. Vranas is an active […]

John S. Koudounis

Posted on: May 15th, 2014

Chief Executive Officer, Calamos Investments John Koudounis joined Calamos Investments as Chief Executive Officer in 2016. His principal duties include overseeing the firm’s day-to-day operations, fiscal function and overall performance. His responsibilities include managing operations, […]

Yanni Sianis

Posted on: May 15th, 2014

Chief of Staff Yanni Sianis is currently the Chief of Staff at Calamos Investments. Prior to this position, Yanni served as Vice President of Global Business Development and was responsible for managing both domestic and […]

Demetrios (Jim) G. Logothetis

Posted on: October 5th, 2021

Jim retired from Ernst & Young (EY) effective June 30th, 2019 extending three years beyond normal retirement at the request of the EY Executive Board. Throughout his forty-year career, Jim served some of the firm’s […]

Georgia Stathis

Posted on: September 23rd, 2016

Georgia Stathis received a B.S. from Northwestern University in Communications and an M.B.A. from Pepperdine University. A licensed California realtor, she is bi-coastal, living in both the San Francisco and Tampa Bay Area. An international […]

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