Gregg Seibert

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Vice Chairman

The Madison Square Garden Company

Gregg Seibert is vice chairman of The Madison Square Garden Company, a leading sports and entertainment company renowned for its world-famous arena complex, professional sports teams, entertainment properties and historic showplaces. In this role, Mr. Seibert works closely with MSG's executive team on the overall advancement of the company. This includes identifying and overseeing the execution of business opportunities and partnerships that further position the company for success.

MSG's signature assets include a portfolio of iconic venues: The World's Most Famous Arena -- Madison Square Garden, The Theater at Madison Square Garden, Radio City Music Hall, the Beacon Theatre, the Forum in Inglewood, CA, The Chicago Theatre, and the Wang Theatre in Boston. In addition, MSG owns and operates professional sports teams, the New York Knicks, Rangers and Liberty; and entertainment properties, including the Christmas Spectacular and New York Spectacular, both starring the Radio City Rockettes; and is part of strategic partnerships, including Azoff MSG Entertainment and Tribeca Enterprises. 

In 2015, Mr. Seibert played a key role in the successful spin-off of MSG from MSG Networks Inc., where he also serves as vice chairman. The media company includes two critically acclaimed regional sports and entertainment networks, MSG Network and MSG+. In addition, Mr. Seibert is vice chairman of AMC Networks Inc., home of award-winning programming networks: AMC, IFC, SundanceTV, and WE tv; feature film label IFC Films; BBC AMERICA (operated through a joint venture with BBC Worldwide); and AMC Networks International, the company's global division.

Since 2009, Mr. Seibert has also been a member of Cablevision Systems Corporation's executive team, including serving as chief financial officer, and, most recently as vice chairman. During his time with the media and telecommunications leader, he has helped shape the company's overall strategy, while playing an instrumental role in a number of its key strategic initiatives, including Cablevision's spin-offs of The Madison Square Garden Company and AMC Networks, Inc.

Prior to 2009, Mr. Seibert spent two decades at Merrill Lynch, where he held several senior leadership positions. From 2004 to 2009, he served as senior vice president and vice chairman of Merrill Lynch and, before that, was head of Americas Corporate Banking, managing all of Merrill Lynch's investment banking activities across the United States, Latin America and Canada. Prior to this, he served as co-head of Global Corporate Finance and co-head of the Global Industries and Communications Group, which covered the consumer products, healthcare, media, technology and telecom industries. He joined Merrill Lynch in 1989 as a managing director and head of the Global Media Group and was responsible for all of the company's investment banking activities in the media and related entertainment industries.

Mr. Seibert received his MBA from the Wharton School of the University of Pennsylvania.

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