![James Bradner](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>)
James Bradner
Chief Executive Officer at
FIVE PRIME THERAPEUTICS, INC.
Net worth: 11 M $ as of 2026-06-29
Profile
James E.
Bradner was the founder of Acetylon Pharmaceuticals, Inc. (2008) where the title held was Director; TetraLogic Research & Development Corp.
(2008) where the title held was Director; Tensha Therapeutics, Inc. (2011); Syros Pharmaceuticals, Inc. (2011) where the title held was Director from 2011 to 2015; and C4 Therapeutics, Inc. (2015).
Current jobs include Chief Executive Officer at Onyx Pharmaceuticals, Inc., ChemoCentryx, Inc., Five Prime Therapeutics, Inc., and TeneoBio, Inc.; Chairman at Novartis Institute for Functional Genomics, Inc.; Director at Foundation for the National Institutes of Health, Inc. since 2023; Executive VP-Research & Development at Amgen, Inc. since 2024; Associate Professor at Harvard Medical School; and Advisor at Longwood Fund Management LLC.
Former jobs include Associate Director-Therapeutics Science Centre at The Broad Institute, Inc.; Member-Supervisory Board at QIAGEN NV in 2015; Member of the American Chemical Society; Member of the American Society of Hematology; and President at Novartis Institutes for Biomedical Research, Inc. from 2016 to 2022.
Education includes an undergraduate degree from Harvard University conferred in 1994 and a doctorate from Pritzker School of Medicine.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
AMGEN INC. 0.01% | 2026-05-06 | 30,016 ( 0.01% ) | 11 M $ | 2026-06-29 |
James Bradner active positions
| Companies | Position | Start |
|---|---|---|
| AMGEN INC. | Chief Tech/Sci/R&D Officer | 2023-12-17 |
| CHEMOCENTRYX, INC. | Chief Executive Officer | - |
| FIVE PRIME THERAPEUTICS, INC. | Chief Executive Officer | - |
Novartis Institute for Functional Genomics, Inc.
 Novartis Institute for Functional Genomics, Inc. Miscellaneous Commercial ServicesCommercial Services Conducts research related to biotechnology and medicine | Chairman | - |
Onyx Pharmaceuticals, Inc.
 Onyx Pharmaceuticals, Inc. Pharmaceuticals: MajorHealth Technology Operates as a biopharmaceutical company that provide therapeutics for cancer | Chief Executive Officer | - |
Longwood Fund Management LLC
 Longwood Fund Management LLC Investment ManagersFinance Longwood Fund invests in companies located in the United States. The firm focuses on the healthcare sector. It participates in early stage capital transactions. | Consultant / Advisor | - |
Foundation for the National Institutes of Health, Inc.
 Foundation for the National Institutes of Health, Inc. Miscellaneous Commercial ServicesCommercial Services Provides healthcare services | Director/Board Member | 2023-05-21 |
Harvard Medical School
 Harvard Medical School Other Consumer ServicesConsumer Services Functions as a College/University | Corporate Officer/Principal | - |
TeneoBio, Inc.
 TeneoBio, Inc. Pharmaceuticals: MajorHealth Technology Develops human heavy chain antibodies for therapeutics against cancer | Chief Executive Officer | - |
Former positions of James Bradner
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Training of James Bradner
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
99
1st degree connections
21
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 21 |
|---|---|
Amgen, Inc.
 Amgen, Inc. BiotechnologyHealth Technology Discovers, develops, manufactures and delivers human therapeutics | Health Technology |
Onyx Pharmaceuticals, Inc.
Onyx Pharmaceuticals, Inc. Pharmaceuticals: MajorHealth Technology Operates as a biopharmaceutical company that provide therapeutics for cancer | Health Technology |
QIAGEN NV
 QIAGEN NV Medical SpecialtiesHealth Technology Manufactures and distributes sample and assay technology products for pre-analytical sample preparations | Health Technology |
ChemoCentryx, Inc.
 ChemoCentryx, Inc. Pharmaceuticals: MajorHealth Technology Develops and commercializes small molecule therapeutics for inflammatory, autoimmune diseases and cancer | Health Technology |
Five Prime Therapeutics, Inc.
 Five Prime Therapeutics, Inc. Pharmaceuticals: MajorHealth Technology Discovers and develops protein therapeutics for cancer and inflammatory diseases | Health Technology |
Tensha Therapeutics, Inc.
 Tensha Therapeutics, Inc. Pharmaceuticals: MajorHealth Technology Develops small molecule bromodomain inhibitors to treat cancer and other serious disorders | Health Technology |
Harvard University
 Harvard University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
American Chemical Society
 American Chemical Society Miscellaneous Commercial ServicesCommercial Services Operates as scientific society that supports scientific inquiry in the field of chemistry | Commercial Services |
American Society of Hematology
 American Society of Hematology Miscellaneous Commercial ServicesCommercial Services Operates as a hematology membership organisation | Commercial Services |
Novartis Institutes for Biomedical Research, Inc.
 Novartis Institutes for Biomedical Research, Inc. Miscellaneous Commercial ServicesCommercial Services Conducts biomedical researches | Commercial Services |
Foundation for the National Institutes of Health, Inc.
Foundation for the National Institutes of Health, Inc. Miscellaneous Commercial ServicesCommercial Services Provides healthcare services | Commercial Services |
Novartis Institute for Functional Genomics, Inc.
Novartis Institute for Functional Genomics, Inc. Miscellaneous Commercial ServicesCommercial Services Conducts research related to biotechnology and medicine | Commercial Services |
The Broad Institute, Inc.
 The Broad Institute, Inc. BiotechnologyHealth Technology Engages in research and development in bio medicals to cure infectious disease, cancer, psychiatric research and cardiovascular diseases | Health Technology |
Harvard Medical School
Harvard Medical School Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Acetylon Pharmaceuticals, Inc.
 Acetylon Pharmaceuticals, Inc. Pharmaceuticals: MajorHealth Technology Develops pharmaceutical technology | Health Technology |
Longwood Fund Management LLC
Longwood Fund Management LLC Investment ManagersFinance Longwood Fund invests in companies located in the United States. The firm focuses on the healthcare sector. It participates in early stage capital transactions. | Finance |
TetraLogic Research & Development Corp.
 TetraLogic Research & Development Corp. BiotechnologyHealth Technology Develops and produces HDAC inhibitors, biological products, and related pharmaceutical compounds for the medical industry | Health Technology |
Syros Pharmaceuticals, Inc.
 Syros Pharmaceuticals, Inc. Pharmaceuticals: MajorHealth Technology Operates as a biopharmaceutical company which developing care for the frontline treatment of patients with hematologic malignancies | Health Technology |
Pritzker School of Medicine
 Pritzker School of Medicine Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
C4 Therapeutics, Inc.
 C4 Therapeutics, Inc. BiotechnologyHealth Technology Develops targeted protein degradation therapeutics for the treatment of cancer | Health Technology |
TeneoBio, Inc.
TeneoBio, Inc. Pharmaceuticals: MajorHealth Technology Develops human heavy chain antibodies for therapeutics against cancer | Health Technology |
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