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Donald Bergstrom
Chief Tech/Sci/R&D Officer at
RELAY THERAPEUTICS, INC.
Net worth: 8 M $ as of 2026-06-29
Profile
Donald A. Bergstrom is currently an Independent Director at Cellectis SA since 2022, a Director at Cellectis, Inc., and President-Research & Development at Relay Therapeutics, Inc. since 2018.
Formerly, Dr. Bergstrom was an Independent Director at Fusion Pharmaceuticals, Inc. from 2021 to 2024, Chief Medical Officer & Senior Vice President at Mersana Therapeutics, Inc. from 2014 to 2018, Global Head-Translational & Experimental Medicine at Sanofi-Aventis U.S.
LLC from 2010 to 2014, Principal at Merck Research Laboratories Massachusetts LLC, and Global Head-Translational Medicine at Genzyme Therapeutics Ltd. from 2010 to 2014.
Education includes a doctorate from the University of Washington and an undergraduate degree from The Johns Hopkins University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-07-27 | 407,660 ( 0.19% ) | 8 M $ | 2026-06-29 |
Donald Bergstrom active positions
| Companies | Position | Start |
|---|---|---|
| RELAY THERAPEUTICS, INC. | Chief Tech/Sci/R&D Officer | 2018-03-31 |
| CELLECTIS S.A. | Director/Board Member | 2022-06-27 |
Cellectis, Inc.
 Cellectis, Inc. Pharmaceuticals: MajorHealth Technology Engages in the upstream research of genome engineering and in the development of pre-engineered products for pharmaceutical industry, cell therapies, seed companies, and laboratory researchers | Director/Board Member | - |
Former positions of Donald Bergstrom
| Companies | Position | End |
|---|---|---|
| FUSN PHAR | Director/Board Member | 2024-06-03 |
| MERSANA THERAPEUTICS | Chief Tech/Sci/R&D Officer | 2018-03-30 |
Sanofi-Aventis U.S. LLC
 Sanofi-Aventis U.S. LLC Pharmaceuticals: MajorHealth Technology Develops medicines, vaccines and provides specialized healthcare & clinical trail services | Corporate Officer/Principal | 2013-12-31 |
Genzyme Therapeutics Ltd.
 Genzyme Therapeutics Ltd. Pharmaceuticals: MajorHealth Technology Develops transformative therapies for patients affected by rare and debilitating diseases | Corporate Officer/Principal | 2013-12-31 |
Merck Research Laboratories Massachusetts LLC
 Merck Research Laboratories Massachusetts LLC Pharmaceuticals: MajorHealth Technology Discovers, develops, and markets a broad range of human and animal health products | Corporate Officer/Principal | - |
Training of Donald Bergstrom
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
66
1st degree connections
10
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 10 |
|---|---|
Mersana Therapeutics, Inc.
 Mersana Therapeutics, Inc. BiotechnologyHealth Technology Develops and manufactures antibody drug conjugates to improve patient outcomes in multiple oncology indications | Health Technology |
University of Washington
 University of Washington Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
The Johns Hopkins University
 The Johns Hopkins University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Cellectis SA
 Cellectis SA Pharmaceuticals: MajorHealth Technology Operates as a clinical-stage biopharmaceutical company that develops immunotherapies | Health Technology |
Sanofi-Aventis U.S. LLC
Sanofi-Aventis U.S. LLC Pharmaceuticals: MajorHealth Technology Develops medicines, vaccines and provides specialized healthcare & clinical trail services | Health Technology |
Merck Research Laboratories Massachusetts LLC
Merck Research Laboratories Massachusetts LLC Pharmaceuticals: MajorHealth Technology Discovers, develops, and markets a broad range of human and animal health products | Health Technology |
Genzyme Therapeutics Ltd.
Genzyme Therapeutics Ltd. Pharmaceuticals: MajorHealth Technology Develops transformative therapies for patients affected by rare and debilitating diseases | Health Technology |
Cellectis, Inc.
Cellectis, Inc. Pharmaceuticals: MajorHealth Technology Engages in the upstream research of genome engineering and in the development of pre-engineered products for pharmaceutical industry, cell therapies, seed companies, and laboratory researchers | Health Technology |
Relay Therapeutics, Inc.
 Relay Therapeutics, Inc. BiotechnologyHealth Technology Operates as clinical-stage precision medicine company, which focus on enhancing small molecule therapeutic discovery in targeted oncology | Health Technology |
Fusion Pharmaceuticals, Inc.
 Fusion Pharmaceuticals, Inc. BiotechnologyHealth Technology Operates as a clinical-stage biopharmaceutical company developing next-generation radiopharmaceuticals for the treatment of cancer | Health Technology |
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