![Ivan Seidenberg](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Ivan Seidenberg
Director/Board Member at
MADISON SQUARE GARDEN SPORTS CORP.
Net worth: - $ as of 2026-05-30
Profile
Mr. Ivan G.
Seidenberg is an Independent Director at Madison Square Garden Sports Corp., a Chairman at Ligado Networks LLC, a Principal at Perella Weinberg Partners Group LP, a Chairman & Chief Executive Officer at Verizon Foundation, a Co-Chairman at New York Genome Center and a Member-Presidents Council at New York Academy of Sciences.
He is on the Board of Directors at Madison Square Garden Sports Corp., Ingenu, Inc., NewYork-Presbyterian Hospital, New York Hall of Science and Pace University.
Mr. Seidenberg was previously employed as an Independent Director by Perella Weinberg Partners, a Lead Independent Director by Boston Properties, Inc., an Independent Director by BlackRock Finance, Inc., a Chairman by The Business Roundtable, a Chairman & Chief Executive Officer by Verizon Communications, Inc., a Chairman & Chief Executive Officer by Bell Atlantic Corp., a Chairman & Chief Executive Officer by NYNEX Corp., a Chairman by Cellco Partnership, Inc., a Trustee by The Paley Center for Media, and a Chairman by United States Telecom Association.
He also served on the board at Fintech Acquisition Corp.
VI, Wyeth LLC, Honeywell International, Inc., Satmap, Inc., Boston Properties LP and Viacom, Inc. /Old/.
He received his undergraduate degree from Lehman College and an MBA from Pace University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-02-16 | 0 ( -.--% ) | - $ | 2026-05-30 |
Ivan Seidenberg active positions
| Companies | Position | Start |
|---|---|---|
| MADISON SQUARE GARDEN SPORTS CORP. | Director/Board Member | 2020-04-16 |
Perella Weinberg Partners Group LP
 Perella Weinberg Partners Group LP Investment ManagersFinance Provides financial advisory and asset management services | Corporate Officer/Principal | 2012-05-31 |
Ligado Networks LLC
 Ligado Networks LLC Specialty TelecommunicationsCommunications Provides mobile satellite communication services | Chairman | 2015-12-06 |
New York Genome Center
 New York Genome Center Miscellaneous Commercial ServicesCommercial Services Provides genomic research services | Chairman | - |
Ingenu, Inc.
 Ingenu, Inc. Information Technology ServicesTechnology Services Provides IoT technology services | Director/Board Member | 2014-03-26 |
New York Academy of Sciences
 New York Academy of Sciences Miscellaneous Commercial ServicesCommercial Services Engages in the advancing science, technology and society worldwide services for charity | Corporate Officer/Principal | 2011-06-28 |
Verizon Foundation
 Verizon Foundation Investment Trusts/Mutual FundsMiscellaneous Functions as a foundation or endowment | Chief Executive Officer | 2011-01-03 |
Pace University
 Pace University Other Consumer ServicesConsumer Services Functions as a College/University | Director/Board Member | 2009-03-29 |
New York Hall of Science
 New York Hall of Science Other Consumer ServicesConsumer Services Operates as a center for interactive science | Director/Board Member | - |
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Former positions of Ivan Seidenberg
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Training of Ivan Seidenberg
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
94
1st degree connections
27
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 27 |
|---|---|
Wyeth Corp.
 Wyeth Corp. Pharmaceuticals: MajorHealth Technology Develops, manufactures and distributes pharmaceuticals, vaccines & biotechnology products | Health Technology |
Verizon Communications, Inc.
 Verizon Communications, Inc. Wireless TelecommunicationsCommunications Operates as a holding company whose subsidiaries provides wireless and wire line communications services and products | Communications |
NYNEX Corp.
 NYNEX Corp. Specialty TelecommunicationsCommunications Provides local telephone services | Communications |
Viacom, Inc. /Old/
 Viacom, Inc. /Old/ BroadcastingConsumer Services Owns and operates diversified entertainment and media businesses | Consumer Services |
BXP, Inc.
 BXP, Inc. Real Estate Investment TrustsFinance Operates as a real estate investment trust which develops, owns and manages office spaces | Finance |
Ligado Networks LLC
Ligado Networks LLC Specialty TelecommunicationsCommunications Provides mobile satellite communication services | Communications |
BlackRock Finance, Inc.
 BlackRock Finance, Inc. Investment ManagersFinance Provides asset and investment advisory & risk management solutions | Finance |
Honeywell International, Inc.
 Honeywell International, Inc. Aerospace & DefenseElectronic Technology Manufactures and supplies aerospace, industrial and building automation products | Electronic Technology |
Cellco Partnership, Inc.
 Cellco Partnership, Inc. Wireless TelecommunicationsCommunications Provides wireless voice and data services | Communications |
Ingenu, Inc.
Ingenu, Inc. Information Technology ServicesTechnology Services Provides IoT technology services | Technology Services |
NewYork-Presbyterian Hospital
 NewYork-Presbyterian Hospital Hospital/Nursing ManagementHealth Services Owns and operates hospitals and that provides medical care & telemedicine services | Health Services |
Bell Atlantic Corp.
 Bell Atlantic Corp. Wireless TelecommunicationsCommunications Provides wired and wireless telecommunication services | Communications |
Boston Properties LP
 Boston Properties LP Real Estate Investment TrustsFinance Provides real estate investment services | Finance |
Lehman College
 Lehman College Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Pace University
Pace University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
United States Telecom Association
 United States Telecom Association Miscellaneous Commercial ServicesCommercial Services Operates as a non-profit organization which provides telecommunications services | Commercial Services |
The Paley Center for Media
 The Paley Center for Media Internet Software/ServicesTechnology Services Operates a platform which leads in discussing about cultural, creative, and social significance of television, radio, and emerging platforms for the professional community and media-interested public | Technology Services |
New York Academy of Sciences
New York Academy of Sciences Miscellaneous Commercial ServicesCommercial Services Engages in the advancing science, technology and society worldwide services for charity | Commercial Services |
The Business Roundtable
 The Business Roundtable Miscellaneous Commercial ServicesCommercial Services Advocates public policies | Commercial Services |
New York Hall of Science
New York Hall of Science Other Consumer ServicesConsumer Services Operates as a center for interactive science | Consumer Services |
Verizon Foundation
Verizon Foundation Investment Trusts/Mutual FundsMiscellaneous Functions as a foundation or endowment | Miscellaneous |
Afiniti, Inc.
 Afiniti, Inc. Packaged SoftwareTechnology Services Provide artificial intelligence technology to pair participants in customer interactions | Technology Services |
Perella Weinberg Partners Group LP
Perella Weinberg Partners Group LP Investment ManagersFinance Provides financial advisory and asset management services | Finance |
New York Genome Center
New York Genome Center Miscellaneous Commercial ServicesCommercial Services Provides genomic research services | Commercial Services |
Madison Square Garden Sports Corp.
 Madison Square Garden Sports Corp. Movies/EntertainmentConsumer Services Engages in live sports and entertainment business | Consumer Services |
Fintech Acquisition Corp. VI
 Fintech Acquisition Corp. VI Financial ConglomeratesFinance Operates as a blank check company | Finance |
Perella Weinberg Partners
 Perella Weinberg Partners Investment ManagersFinance Provides financial and strategic advisory services | Finance |
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- Ivan Seidenberg
