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Marc Mazur
Director/Board Member at
AMERICAN ADDICTION CENTERS INC
Net worth: 957 026 $ as of 30/05/2026
Profile
Marc B. Mazur is the founder of Ambassador Capital Group, founded in 2001.
Current jobs include Director at The Jed Foundation, Independent Director at SuRo Capital Corp.
since 2017, Director at Celularity, Inc. (United States) since 2021, Director at American Addiction Centers, Inc. since 2024, and Independent Director at Soren Acquisition Corp.
starting in 2026.
Former jobs include Chief Executive Officer at Brevan Howard US Asset Management LP from 2006 to 2009, Independent Non-Executive Director at Fibrocell Science, Inc. from 2010 to 2019, Director at RegenETP, Inc., Director at DeVilbiss Healthcare LLC from 2010 to 2014, Director at StayWell Health Management LLC from 2010 to 2014, Director at Castle Creek Biosciences, Inc., Independent Director at GX Acquisition Corp.
II from 2021 to 2023, Director at ChanceLight, Inc. from 2018 to 2019, Independent Director at Celularity, Inc. from 2021 to 2024, Independent Director at GX Acquisition Corp.
from 2019 to 2021, Vice President-Fixed Income Division at The Goldman Sachs Group, Inc. from 1987 to 1996, Senior Advisor at ThinkEquity Partners, Senior Advisor at Tsinghua Venture Capital Co. Ltd., and Vice President at Salomon Brothers, Inc. from 1984 to 1987.
Education includes an undergraduate degree from The Trustees of Columbia University in The City of New York conferred in 1981 and a graduate degree from Villanova University School of Law conferred in 1984.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
SURO CAPITAL CORP. 0.26% | 09/06/2026 | 68,950 ( 0.26% ) | 957 026 $ | 30/05/2026 |
Marc Mazur active positions
| Companies | Position | Start |
|---|---|---|
| SURO CAPITAL CORP. | Director/Board Member | 16/03/2017 |
| AMERICAN ADDICTION CENTERS INC | Director/Board Member | 31/07/2024 |
Celularity, Inc. (United States)
 Celularity, Inc. (United States) Miscellaneous Commercial ServicesCommercial Services Operates as a biotechnology company which produces allogeneic cells and tissues from postpartum placenta | Director/Board Member | 30/06/2021 |
The Jed Foundation
 The Jed Foundation Services to the Health IndustryHealth Services Engages in protecting and supporting emotional health and prevent suicide for nation's teens & young adults | Director/Board Member | - |
Former positions of Marc Mazur
| Companies | Position | End |
|---|---|---|
| CELULARITY INC. | Director/Board Member | 30/07/2024 |
| GX ACQU | Director/Board Member | 16/03/2023 |
| GX ACQU | Director/Board Member | 30/06/2021 |
| FIBROCELL SCIENCE, INC. | Director/Board Member | 12/12/2019 |
ChanceLight, Inc.
 ChanceLight, Inc. Medical/Nursing ServicesHealth Services Provides behavior therapy, alternative and education programs solutions for children & young adults | Director/Board Member | 31/03/2019 |
Training of Marc Mazur
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
80
1st degree connections
21
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 21 |
|---|---|
Fibrocell Science, Inc.
 Fibrocell Science, Inc. Miscellaneous Commercial ServicesCommercial Services Operates as an autologous cell and gene therapy company focused on development of personalized biologics to treat rare skin and connective tissue diseases | Commercial Services |
The Goldman Sachs Group, Inc.
 The Goldman Sachs Group, Inc. Investment Banks/BrokersFinance Provides investment banking, asset, wealth management and platform services | Finance |
ThinkEquity Partners
 ThinkEquity Partners Investment ManagersFinance Provides investment advice and security brokerage services | Finance |
ChanceLight, Inc.
ChanceLight, Inc. Medical/Nursing ServicesHealth Services Provides behavior therapy, alternative and education programs solutions for children & young adults | Health Services |
The Trustees of Columbia University in The City of New York
 The Trustees of Columbia University in The City of New York Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
RegenETP, Inc.
 RegenETP, Inc. BiotechnologyHealth Technology Operates as a biotechnology company that develops and commercializes regenerative tissue products & biomaterials | Health Technology |
DeVilbiss Healthcare LLC
 DeVilbiss Healthcare LLC Medical SpecialtiesHealth Technology Designs, manufactures and markets respiratory medical products | Health Technology |
Brevan Howard US Asset Management LP
 Brevan Howard US Asset Management LP Investment ManagersFinance Brevan Howard uses a macro and relative value investment approach focusing primarily on fixed-income and foreign exchange | Finance |
Tsinghua Venture Capital Co. Ltd.
 Tsinghua Venture Capital Co. Ltd. Investment ManagersFinance THVC's deal flow leverages the firm's direct access to investment opportunities developed through research within Tsinghua University, and to the university's network of alumni. The firm targets academic or business projects which they think have potential to develop into stand-alone companies. They favor sectors including information technology, life sciences and products and other advanced technology fields. They seek to invest in projects with a well-developed business plan, committed management with proven leadership abilities, near profitability with significant revenues or the potential for high revenue growth, and a credible strategy to achieve and sustain market leadership. They support their portfolio companies by providing them with access to their established network, financial and management advisory and investment bank services. THVC may invest foreign currency in their portfolio companies through offshore vehicles, to facilitate IPOs on overseas exchanges. | Finance |
Salomon Brothers, Inc.
 Salomon Brothers, Inc. Investment Banks/BrokersFinance Investment banking services | Finance |
American Addiction Centers, Inc.
 American Addiction Centers, Inc. Hospital/Nursing ManagementHealth Services Provides addiction treatment and mental health services | Health Services |
Ambassador Capital Group | |
The Jed Foundation
The Jed Foundation Services to the Health IndustryHealth Services Engages in protecting and supporting emotional health and prevent suicide for nation's teens & young adults | Health Services |
Staywell Health Management LLC
 Staywell Health Management LLC Managed Health CareHealth Services Offers a population health management solutions | Health Services |
SuRo Capital Corp.
 SuRo Capital Corp. Investment Trusts/Mutual FundsMiscellaneous Functions as a private equity fund | Miscellaneous |
Villanova University School of Law
 Villanova University School of Law Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Celularity, Inc. (United States)
Celularity, Inc. (United States) Miscellaneous Commercial ServicesCommercial Services Operates as a biotechnology company which produces allogeneic cells and tissues from postpartum placenta | Commercial Services |
GX Acquisition Corp.
 GX Acquisition Corp. Financial ConglomeratesFinance Operates as a blank check company | Finance |
Castle Creek Biosciences, Inc.
 Castle Creek Biosciences, Inc. BiotechnologyHealth Technology Develops gene therapies for patients with skin and genetic diseases | Health Technology |
GX Acquisition Corp. II
 GX Acquisition Corp. II Financial ConglomeratesFinance Operates as a blank check company | Finance |
Celularity, Inc.
 Celularity, Inc. Miscellaneous Commercial ServicesCommercial Services Operates as a clinical stage biotechnology company that discovers cancer sub-types and therapeutic options for cancer patients | Commercial Services |
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