John P. Calamos, Sr. is Chief Executive Officer and Co-Chief Investment Officer of Calamos Investments, the firm he founded in 1977. An early expert in the use of convertible security investment strategies, Mr. Calamos has authored two books on the subject and is often quoted as an authority on a wide range of topics in many investment publications and on financial television broadcasts. He is a frequent speaker at investment seminars and conferences and has also written many columns on investment-related topics for Hellenic publications. He earned an undergraduate degree in Economics and an MBA in finance from the Illinois Institute of Technology.

Calamos Investments is a diversified global investment firm offering innovative investment strategies including equity, fixed income, convertible and alternative investments, among others. The firm offers strategies through separately managed portfolios, mutual funds, closed-end funds, private funds and UCITS funds. Clients include major corporations, pension funds, endowments, foundations and individuals. Headquartered in the Chicago metropolitan area, the firm also has offices in London and New York.

Mr. Calamos is an active philanthropist supporting educational and Hellenic organizations. He is a Trustee for the Illinois Institute of Technology and serves as Chairman of the Board of Directors for the National Hellenic Museum in Chicago.