![Frank Thomas](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>)
Frank Thomas
Chairman at
SPERO THERAPEUTICS, INC.
Net worth: 236 610 $ as of 2026-05-30
Profile
Frank E.
Thomas is Chairman at Spero Therapeutics, Inc. since 2025.
Holds the position of Director at Orchard Therapeutics North America.
Serves as Independent Director at Larimar Therapeutics, Inc. since 2014.
President & Chief Operating Officer at Orchard Therapeutics (Europe) Ltd. since 2020.
President, Chief Operating & Financial Officer at Orchard Therapeutics Plc since 2018.
Former roles include President, Chief Executive Officer & Director at Critical Therapeutics, Inc. from 2006 to 2008.
Controller & Finance Director at Mechanical Dynamics, Inc. from 1997 to 2000.
Independent Director at Zafgen, Inc. Director at Massachusetts Biotechnology Council from 2007 to 2015.
Chief Financial Officer & VP-Investor Relations at Esperion Therapeutics, Inc. from 2000 to 2004.
Chief Operating Officer & Senior Vice President at Molecular Biometrics, Inc. from 2010 to 2011.
Principal at Arthur Andersen LLP from 1992 to 2000.
President & Chief Operating Officer at AMAG Pharmaceuticals, Inc. from 2016 to 2017.
Education includes undergraduate degree from the University of Michigan.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-06-22 | 75,000 ( 0.13% ) | 212 250 $ | 2026-05-30 | |
| 2026-05-18 | 7,000 ( 0.01% ) | 24 360 $ | 2026-05-30 |
Frank Thomas active positions
| Companies | Position | Start |
|---|---|---|
| SPERO THERAPEUTICS, INC. | Chairman | 2025-01-09 |
| ORCHARD THERAPEUTICS PLC | President | 2020-03-17 |
| LARIMAR THERAPEUTICS, INC. | Director/Board Member | 2013-12-31 |
Orchard Therapeutics (Europe) Ltd.
 Orchard Therapeutics (Europe) Ltd. BiotechnologyHealth Technology Researches on transformative gene therapies | President | 2020-03-16 |
Orchard Therapeutics North America
 Orchard Therapeutics North America BiotechnologyHealth Technology Provides biotechnology research services | Director/Board Member | - |
Former positions of Frank Thomas
| Companies | Position | End |
|---|---|---|
| AMAG PHARMACEUTICALS, INC. | Chief Executive Officer | 2012-05-13 |
Massachusetts Biotechnology Council
 Massachusetts Biotechnology Council Miscellaneous Commercial ServicesCommercial Services Operates as an association of biotechnology companies | Director/Board Member | 2014-12-31 |
Molecular Biometrics, Inc.
 Molecular Biometrics, Inc. Miscellaneous Commercial ServicesCommercial Services Develops analytical methodologies for molecular diagnostic | Director of Finance/CFO | 2010-01-17 |
Critical Therapeutics, Inc.
 Critical Therapeutics, Inc. Pharmaceuticals: MajorHealth Technology Discovers, develops and commercializes products for respiratory, inflammatory and critical care diseases | Chief Executive Officer | 2008-03-30 |
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Training of Frank Thomas
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
93
1st degree connections
14
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 14 |
|---|---|
Mechanical Dynamics, Inc.
 Mechanical Dynamics, Inc. Information Technology ServicesTechnology Services Develops, markets, and supports virtual prototyping solutions | Technology Services |
Esperion Therapeutics, Inc.
 Esperion Therapeutics, Inc. Pharmaceuticals: MajorHealth Technology Develops and discovers biopharmaceutical products | Health Technology |
Critical Therapeutics, Inc.
Critical Therapeutics, Inc. Pharmaceuticals: MajorHealth Technology Discovers, develops and commercializes products for respiratory, inflammatory and critical care diseases | Health Technology |
Molecular Biometrics, Inc.
Molecular Biometrics, Inc. Miscellaneous Commercial ServicesCommercial Services Develops analytical methodologies for molecular diagnostic | Commercial Services |
Zafgen, Inc.
 Zafgen, Inc. BiotechnologyHealth Technology Operates as a biopharmaceutical company | Health Technology |
Arthur Andersen LLP
 Arthur Andersen LLP Miscellaneous Commercial ServicesCommercial Services Provides accounting services | Commercial Services |
University of Michigan
 University of Michigan Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Massachusetts Biotechnology Council
Massachusetts Biotechnology Council Miscellaneous Commercial ServicesCommercial Services Operates as an association of biotechnology companies | Commercial Services |
AMAG Pharmaceuticals, Inc.
 AMAG Pharmaceuticals, Inc. Pharmaceuticals: MajorHealth Technology Manufactures pharmaceutical products | Health Technology |
Spero Therapeutics, Inc.
 Spero Therapeutics, Inc. BiotechnologyHealth Technology Develops therapies for the treatment of bacterial infections | Health Technology |
Orchard Therapeutics (Europe) Ltd.
Orchard Therapeutics (Europe) Ltd. BiotechnologyHealth Technology Researches on transformative gene therapies | Health Technology |
Orchard Therapeutics Plc
 Orchard Therapeutics Plc BiotechnologyHealth Technology Engages in research and advancements of gene therapy to develop potential cures for genetic & other severe diseases | Health Technology |
Orchard Therapeutics North America
Orchard Therapeutics North America BiotechnologyHealth Technology Provides biotechnology research services | Health Technology |
Larimar Therapeutics, Inc.
 Larimar Therapeutics, Inc. BiotechnologyHealth Technology Operates as a clinical-stage biotechnology company focused on developing treatments for complex rare diseases | Health Technology |
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