![John Siebert](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>)
John Siebert
Director/Board Member at
Primus Pharmaceuticals, Inc.
Profile
John M.
Siebert was the founder and had founded Compan Pharmaceuticals LLC in 2008, where he served as the Chairman & Chief Executive Officer.
He currently holds positions as a Director at Primus Pharmaceuticals, Inc., Accu-Break Pharmaceuticals, Inc., and Riverside Pharmaceuticals Corp.
Dr. Siebert has previously held positions as the President & Chief Executive Officer at CIMA Labs, Inc. from 1995 to 2003, Executive Chairman, Chief Executive Officer & CFO at Aradigm Corp.
from 2006 to 2019, Chairman & Chief Executive Officer at CyDex Pharmaceuticals, Inc. from 2003 to 2008, President & Chief Executive Officer at Chase Pharmaceuticals Corp.
in 2014, and as an Independent Director at Supernus Pharmaceuticals, Inc. from 2011 to 2024.
He has also served as the Head-Research & Development Division at Bayer Corp.
from 1988 to 1992 and as the Vice President-Technical Affairs at Dey Laboratories, Inc. from 1992 to 1995.
Additionally, Dr. Siebert has worked as the Chief Operating Officer & Partner at New Rhein Healthcare Investors from 2010 to 2014.
He holds a doctorate degree from the University of Missouri, an undergraduate degree from Benedictine University, and a graduate degree from Wichita State University.
John Siebert active positions
| Companies | Position | Start |
|---|---|---|
Primus Pharmaceuticals, Inc.
 Primus Pharmaceuticals, Inc. Drugstore ChainsRetail Trade Provides prescription metabolic products to physicians and patients | Director/Board Member | - |
Accu-Break Pharmaceuticals, Inc.
 Accu-Break Pharmaceuticals, Inc. Pharmaceuticals: MajorHealth Technology Develops and manufactures pharmaceutical products | Director/Board Member | - |
Riverside Pharmaceuticals Corp.
 Riverside Pharmaceuticals Corp. MiscellaneousMiscellaneous Operates as a non-classified establishment | Director/Board Member | - |
Former positions of John Siebert
| Companies | Position | End |
|---|---|---|
| SUPERNUS PHARMACEUTICALS, INC. | Director/Board Member | 14/06/2024 |
| ARADIGM CORPORATION | Chief Executive Officer | 15/02/2019 |
Chase Pharmaceuticals Corp.
 Chase Pharmaceuticals Corp. Pharmaceuticals: MajorHealth Technology Develops novel medications for the treatment of Alzheimer’s disease | Chief Executive Officer | 01/11/2015 |
New Rhein Healthcare Investors
 New Rhein Healthcare Investors Investment ManagersFinance New Rhein Healthcare Investors invests in companies located in the United States. The firm targets operating in the fields of of pharma and medical devices. It provides financing for seed, early and late-stage transactions. | Chief Operating Officer | 01/01/2014 |
Compan Pharmaceuticals LLC | Chief Executive Officer | 01/01/2010 |
Training of John Siebert
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
69
1st degree connections
16
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 16 |
|---|---|
CIMA Labs, Inc.
 CIMA Labs, Inc. Pharmaceuticals: OtherHealth Technology Develops and manufactures pharmaceutical products | Health Technology |
Aradigm Corp.
 Aradigm Corp. Pharmaceuticals: MajorHealth Technology Operates as a pharmaceutical company that develops and commercializes products for the treatment and prevention of respiratory diseases | Health Technology |
Bayer Corp.
 Bayer Corp. Pharmaceuticals: MajorHealth Technology Manufactures and markets pharmaceutical, healthcare & agricultural products | Health Technology |
CyDex Pharmaceuticals, Inc.
 CyDex Pharmaceuticals, Inc. Pharmaceuticals: MajorHealth Technology Provides pharmaceutical discovery, development and manufacturing services | Health Technology |
Primus Pharmaceuticals, Inc.
Primus Pharmaceuticals, Inc. Drugstore ChainsRetail Trade Provides prescription metabolic products to physicians and patients | Retail Trade |
Accu-Break Pharmaceuticals, Inc.
Accu-Break Pharmaceuticals, Inc. Pharmaceuticals: MajorHealth Technology Develops and manufactures pharmaceutical products | Health Technology |
SoluBest Ltd.
 SoluBest Ltd. Pharmaceuticals: MajorHealth Technology Develops proprietary nano-transport drug systems | Health Technology |
Chase Pharmaceuticals Corp.
Chase Pharmaceuticals Corp. Pharmaceuticals: MajorHealth Technology Develops novel medications for the treatment of Alzheimer’s disease | Health Technology |
University of Missouri
 University of Missouri Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Benedictine University
 Benedictine University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Wichita State University
 Wichita State University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Supernus Pharmaceuticals, Inc.
 Supernus Pharmaceuticals, Inc. Pharmaceuticals: MajorHealth Technology Manufactures and markets pharmaceutical products for the treatment of central nervous system diseases | Health Technology |
Dey Laboratories, Inc. | |
Compan Pharmaceuticals LLC | |
New Rhein Healthcare Investors
New Rhein Healthcare Investors Investment ManagersFinance New Rhein Healthcare Investors invests in companies located in the United States. The firm targets operating in the fields of of pharma and medical devices. It provides financing for seed, early and late-stage transactions. | Finance |
Riverside Pharmaceuticals Corp.
Riverside Pharmaceuticals Corp. MiscellaneousMiscellaneous Operates as a non-classified establishment | Miscellaneous |
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