Mark Stejbach

Director/Board Member at

Indivior Ltd.

Net worth: 975 674 $ as of 2026-05-30

62 year

96 connections

Health Technology

Consumer Services

Finance

Profile

Mr. Mark P.
Stejbach is an Independent Non-Executive Director at Indivior Pharmaceuticals, Inc. and an Independent Non-Executive Director at Indivior Ltd. He is on the Board of Directors at Indivior Pharmaceuticals, Inc., Indivior Ltd. and Nirsum Laboratories, Inc. Mr. Stejbach was previously employed as an Independent Non-Executive Director by Flexion Therapeutics, Inc., a Chief Commercial Officer & Senior Vice President by Alkermes Plc, a Chief Commercial Officer by Tengion, Inc., a Principal by Biogen Idec MA, Inc., and a Vice President-Managed Care Marketing by Merck & Co., Inc. He also served on the board at Commonwealth National Fund, Inc. He received his undergraduate degree from Virginia Polytechnic Institute & State University and an MBA from The Wharton School of the University of Pennsylvania.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
0.02%	2026-05-12	27,087 ( 0.02% )	975 674 $	2026-05-30

Mark Stejbach active positions

Companies	Position	Start
Indivior Ltd. Indivior Ltd. Pharmaceuticals: MajorHealth Technology Develops and commercializes pharmaceutical drugs	Director/Board Member	2021-03-23
Nirsum Laboratories, Inc. Nirsum Laboratories, Inc. Pharmaceuticals: MajorHealth Technology Develops new medications for opioid use disorder	Director/Board Member	-

All active positions of Mark Stejbach

Former positions of Mark Stejbach

Companies	Position	End
FLEXION THERAPEUTICS, INC.	Director/Board Member	2021-11-18
ALKERMES PLC	Corporate Officer/Principal	2018-09-30
TENGION, INC.	Public Communications Contact	2011-12-31
Commonwealth National Fund, Inc. Commonwealth National Fund, Inc. Financial ConglomeratesFinance Functions as investment fund	Director/Board Member	2010-12-31
MERCK & CO., INC.	Corporate Officer/Principal	2008-06-30

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Training of Mark Stejbach

Experiences
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Private companies

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Linked companies

Private companies	10
Biogen MA, Inc. Biogen MA, Inc. BiotechnologyHealth Technology Develops and manufactures drugs related to immunology, neurobiology and oncology	Health Technology
Merck & Co., Inc. Merck & Co., Inc. Pharmaceuticals: MajorHealth Technology Manufactures human and animal health pharmaceutical products & vaccines	Health Technology
Tengion, Inc. Tengion, Inc. BiotechnologyHealth Technology Develops new human organs and tissues	Health Technology
Flexion Therapeutics, Inc. Flexion Therapeutics, Inc. Pharmaceuticals: MajorHealth Technology Operates as a biopharmaceutical company that discovers, develops and commercializes therapies for the treatment of patients with musculoskeletal conditions	Health Technology
Indivior Ltd. Indivior Ltd. Pharmaceuticals: MajorHealth Technology Develops and commercializes pharmaceutical drugs	Health Technology
Virginia Polytechnic Institute & State University Virginia Polytechnic Institute & State University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Alkermes Plc Alkermes Plc Pharmaceuticals: MajorHealth Technology Manufactures and commercializes pharmaceutical products to treat neurodegenerative disorders and cancer	Health Technology
The Wharton School of the University of Pennsylvania The Wharton School of the University of Pennsylvania Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Commonwealth National Fund, Inc. Commonwealth National Fund, Inc. Financial ConglomeratesFinance Functions as investment fund	Finance
Nirsum Laboratories, Inc. Nirsum Laboratories, Inc. Pharmaceuticals: MajorHealth Technology Develops new medications for opioid use disorder	Health Technology