Jay Siegel

Corporate Officer/Principal at

Janssen Research & Development LLC

Net worth: 68 145 $ as of 2026-06-29

73 year

30 connections

Commercial Services

Health Technology

Consumer Services

Profile

Jay Philip Siegel is currently Co-Chairman of the Regenerative Medicine Forum at The National Academies of Science and Chief Biotechnology Officer at Janssen Research & Development LLC.
Former positions include Director at Biotechnology Innovation Organization, Director at Alliance for Regenerative Medicine, Independent Director at MacroGenics, Inc. from 2017 to 2026, and Chief Biotechnology Officer at Johnson & Johnson.
Education includes a doctorate from Stanford University and an undergraduate degree from California Institute of Technology.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
MACROGENICS, INC. 0.02%	2026-05-17	14,750 ( 0.02% )	68 145 $	2026-06-29

Jay Siegel active positions

Companies	Position	Start
Janssen Research & Development LLC Janssen Research & Development LLC Miscellaneous Commercial ServicesCommercial Services Provides research and development medicines and solutions to other medical needs	Corporate Officer/Principal	-
The National Academies of Science The National Academies of Science Miscellaneous Commercial ServicesCommercial Services Provides advice and reports in sciences, engineering and medicine	Corporate Officer/Principal	-

All active positions of Jay Siegel

Former positions of Jay Siegel

Companies	Position	End
MACROGENICS, INC.	Director/Board Member	2026-05-18
Alliance for Regenerative Medicine Alliance for Regenerative Medicine Medical/Nursing ServicesHealth Services Promotes legislative, regulatory and reimbursement initiatives for regenerative medicine	Director/Board Member	-
Biotechnology Innovation Organization Biotechnology Innovation Organization Miscellaneous Commercial ServicesCommercial Services Operates as a biotechnology advocacy organization representing biotech companies, industry leaders and state biotech associations	Director/Board Member	-
JOHNSON & JOHNSON	Corporate Officer/Principal	-

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Training of Jay Siegel

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Linked companies

Private companies	8
Johnson & Johnson Johnson & Johnson Pharmaceuticals: MajorHealth Technology Operates as an investment holding company with interests in health care products	Health Technology
Biotechnology Innovation Organization Biotechnology Innovation Organization Miscellaneous Commercial ServicesCommercial Services Operates as a biotechnology advocacy organization representing biotech companies, industry leaders and state biotech associations	Commercial Services
Stanford University Stanford University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
MacroGenics, Inc. MacroGenics, Inc. Pharmaceuticals: MajorHealth Technology Develops and commercializes antibody-based therapeutics for the treatment of cancer	Health Technology
California Institute of Technology California Institute of Technology Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
The National Academies of Science The National Academies of Science Miscellaneous Commercial ServicesCommercial Services Provides advice and reports in sciences, engineering and medicine	Commercial Services
Alliance for Regenerative Medicine Alliance for Regenerative Medicine Medical/Nursing ServicesHealth Services Promotes legislative, regulatory and reimbursement initiatives for regenerative medicine	Health Services
Janssen Research & Development LLC Janssen Research & Development LLC Miscellaneous Commercial ServicesCommercial Services Provides research and development medicines and solutions to other medical needs	Commercial Services