![Mark Thierer](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>)
Mark Thierer
Chairman at
P3 HEALTH PARTNERS INC.
Net worth: 58 674 $ as of 2026-04-29
Profile
Mark A. Thierer is a businessperson who has been the head of 9 different companies and holds the position of Executive Chairman of Rightway Healthcare, Inc. and Chief Executive Officer at Catamaran PBM of Illinois, Inc. He is also on the board of Discover Financial Services, Senior Connect Acquisition Corp. I and Health Connect Acquisitions Corp. I and Chairman for The Executives Club of Chicago, Member of National Association of Chain Drug Stores, Inc., Member of Healthcare Information & Management Systems Society, Member of The Professional Convention Management Association, Member of Academy of Managed Care Pharmacy, Member of The National Council For Prescription Drug Programs, Inc. and Managing Partner at Assetblue Investment Group. In his past career he held the position of Chief Executive Officer of Dentsply Sirona, Inc., Senior Vice President-Industry Relations at CVS Health Corp., President-Physicians Interactive Division at Allscripts Healthcare Solutions, Inc., Chief Executive Officer for Catamaran Corp., President & Chief Executive Officer of Catalyst Health Solutions, Inc., Chief Executive Officer at OptumRx, Inc., President & Chief Executive Officer of Catamaran, Inc. and Chairman of Pharmaceutical Care Management Association. Mr. Thierer received an MBA from Nova Southeastern University, Inc. and an undergraduate degree from the University of Minnesota.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2025-08-05 | 21,182 ( 0.64% ) | 58 674 $ | 2026-04-29 |
Mark Thierer active positions
| Companies | Position | Start |
|---|---|---|
| P3 HEALTH PARTNERS INC. | Chairman | 2021-12-02 |
| SENIOR CONNECT ACQUISITION CORP. I | Director/Board Member | 2020-12-09 |
Rightway Healthcare, Inc.
 Rightway Healthcare, Inc. Packaged SoftwareTechnology Services Develops patient navigation and healthcare advocacy platform | Chairman | 2020-03-31 |
Health Connect Acquisitions Corp. I | Director/Board Member | 2020-12-09 |
Foresight Acquisition Corp. II
 Foresight Acquisition Corp. II Financial ConglomeratesFinance Operates as blank check company | Founder | 2021-03-22 |
Assetblue Investment Group
 Assetblue Investment Group Investment ManagersFinance Assetblue invests in companies located in the United States. The firm focuses on companies operating in a broad range of sectors. It participates in buyout transactions. | Chief Executive Officer | 2014-04-30 |
P3 Health Partners-Nevada LLC
 P3 Health Partners-Nevada LLC Miscellaneous Commercial ServicesCommercial Services Operates as health management company | Chairman | - |
Water Street Healthcare Partners LLC
 Water Street Healthcare Partners LLC Investment ManagersFinance Water Street Healthcare invests in companies located in the United States. The firm focuses on the healthcare sector such as pharmaceutical & life sciences, medical products & diagnostics and healthcare services sectors. It participates in growth and buyout stage capital transactions. | Consultant / Advisor | - |
Thierer Family Foundation | Founder | 2015-11-30 |
Former positions of Mark Thierer
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Training of Mark Thierer
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
66
1st degree connections
33
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 33 |
|---|---|
CVS Health Corp.
 CVS Health Corp. Drugstore ChainsRetail Trade Operates as a holding company whose subsidiaries provides health, pharmacy and consumer wellness services | Retail Trade |
Catamaran PBM of Illinois, Inc.
 Catamaran PBM of Illinois, Inc. Managed Health CareHealth Services Provides comprehensive prescription benefit management services | Health Services |
Catalyst Health Solutions, Inc.
 Catalyst Health Solutions, Inc. Internet Software/ServicesTechnology Services Provides pharmacy benefit management services | Technology Services |
Catamaran Corp.
 Catamaran Corp. Insurance Brokers/ServicesFinance Provides pharmacy benefits management services | Finance |
Xeris Pharmaceuticals, Inc.
 Xeris Pharmaceuticals, Inc. Pharmaceuticals: MajorHealth Technology Develops and commercializes ready-to-use and liquid-stable injectables | Health Technology |
OptumRx, Inc.
 OptumRx, Inc. Investment ManagersFinance Provides pharmacy benefit management services | Finance |
SXC Health Solutions, Inc.
 SXC Health Solutions, Inc. Packaged SoftwareTechnology Services Provides healthcare information technology solutions | Technology Services |
Discover Financial Services
 Discover Financial Services Finance/Rental/LeasingFinance Provides online banking, credit card, personal & home loan and online banking services | Finance |
Nova Southeastern University, Inc.
 Nova Southeastern University, Inc. Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
University of Minnesota
 University of Minnesota Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
National Association of Chain Drug Stores, Inc.
 National Association of Chain Drug Stores, Inc. Medical/Nursing ServicesHealth Services Provides healthcare services and consumer products | Health Services |
Lyric Opera of Chicago
 Lyric Opera of Chicago Movies/EntertainmentConsumer Services Provides live theatrical presentations | Consumer Services |
Eversana LLC
 Eversana LLC Miscellaneous Commercial ServicesCommercial Services Provides pharmaceutical marketing support solutions | Commercial Services |
The Executives Club of Chicago
 The Executives Club of Chicago Miscellaneous Commercial ServicesCommercial Services Operates as a premier membership organization and business forum | Commercial Services |
Kenneth C. Griffin Museum of Science & Industry
 Kenneth C. Griffin Museum of Science & Industry Other Consumer ServicesConsumer Services Operates as a museum | Consumer Services |
Healthcare Information & Management Systems Society
 Healthcare Information & Management Systems Society Miscellaneous Commercial ServicesCommercial Services Operates as a non-profit membership organization for professionals and organizations to promote the IT & management systems in healthcare sector | Commercial Services |
Pharmaceutical Care Management Association
 Pharmaceutical Care Management Association Miscellaneous Commercial ServicesCommercial Services Operates national association that represents America’s pharmacy benefit managers | Commercial Services |
Academy of Managed Care Pharmacy
 Academy of Managed Care Pharmacy Miscellaneous Commercial ServicesCommercial Services Operates as professional organization representing the interests of pharmacists | Commercial Services |
The National Council For Prescription Drug Programs, Inc.
 The National Council For Prescription Drug Programs, Inc. Miscellaneous Commercial ServicesCommercial Services Operates as a forum for developing and promoting healthcare industries | Commercial Services |
Aptus Health, Inc.
 Aptus Health, Inc. Miscellaneous Commercial ServicesCommercial Services Operates a marketing platform for physicians and health care professionals | Commercial Services |
Eversana Life Science Services LLC
 Eversana Life Science Services LLC Miscellaneous Commercial ServicesCommercial Services Provides commercial services to the life sciences industry | Commercial Services |
Catamaran, Inc.
 Catamaran, Inc. Miscellaneous Commercial ServicesCommercial Services Provides pharmacy benefit management services and healthcare information technology solutions | Commercial Services |
Water Street Healthcare Partners LLC
Water Street Healthcare Partners LLC Investment ManagersFinance Water Street Healthcare invests in companies located in the United States. The firm focuses on the healthcare sector such as pharmaceutical & life sciences, medical products & diagnostics and healthcare services sectors. It participates in growth and buyout stage capital transactions. | Finance |
Veradigm, Inc.
 Veradigm, Inc. Packaged SoftwareTechnology Services Develops patient engagement software for healthcare organizations | Technology Services |
Dentsply Sirona, Inc.
 Dentsply Sirona, Inc. Medical SpecialtiesHealth Technology Designs, manufactures endodontic, restorative and preventive consumable products, implants & provides CAD/CAM solutions | Health Technology |
Assetblue Investment Group
Assetblue Investment Group Investment ManagersFinance Assetblue invests in companies located in the United States. The firm focuses on companies operating in a broad range of sectors. It participates in buyout transactions. | Finance |
Rightway Healthcare, Inc.
Rightway Healthcare, Inc. Packaged SoftwareTechnology Services Develops patient navigation and healthcare advocacy platform | Technology Services |
Senior Connect Acquisition Corp. I
 Senior Connect Acquisition Corp. I Financial ConglomeratesFinance Operates as a blank check company | Finance |
Health Connect Acquisitions Corp. I | |
Foresight Acquisition Corp. II
Foresight Acquisition Corp. II Financial ConglomeratesFinance Operates as blank check company | Finance |
P3 Health Partners, Inc.
 P3 Health Partners, Inc. Miscellaneous Commercial ServicesCommercial Services Operates as a health management company | Commercial Services |
P3 Health Partners-Nevada LLC
P3 Health Partners-Nevada LLC Miscellaneous Commercial ServicesCommercial Services Operates as health management company | Commercial Services |
Thierer Family Foundation |
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