![Sean Brynjelsen](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>)
Sean Brynjelsen
Chief Executive Officer at
ETON PHARMACEUTICALS, INC.
Net worth: 45 M $ as of 2026-07-30
Profile
Sean E.
Brynjelsen is President, Chief Executive Officer & Director at Eton Pharmaceuticals, Inc. since 2017.
Formerly, Senior Vice President-Global Business Development at Akorn, Inc. from 2015 to 2016, and Executive Vice President-Business Development at Sagent Pharmaceuticals, Inc. from 2016 to 2017.
Education includes an MBA from the University of Notre Dame in 2006, an undergraduate degree from the University of Illinois in 1993, and a graduate degree from the University of Illinois in 1995.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-08-19 | 961,194 ( 3.51% ) | 45 M $ | 2026-07-30 |
Sean Brynjelsen active positions
| Companies | Position | Start |
|---|---|---|
| ETON PHARMACEUTICALS, INC. | Chief Executive Officer | 2017-05-31 |
Former positions of Sean Brynjelsen
| Companies | Position | End |
|---|---|---|
| SAGENT PHARMACEUTICALS INC | Corporate Officer/Principal | 2017-05-31 |
| AKORN, INC. | Chief Tech/Sci/R&D Officer | 2014-02-06 |
Training of Sean Brynjelsen
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
95
1st degree connections
5
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 5 |
|---|---|
Akorn, Inc.
 Akorn, Inc. Pharmaceuticals: MajorHealth Technology Manufactures and distributes therapeutic, diagnostic & surgical pharmaceuticals | Health Technology |
University of Notre Dame
 University of Notre Dame Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
University of Illinois
 University of Illinois Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Sagent Pharmaceuticals, Inc.
 Sagent Pharmaceuticals, Inc. Pharmaceuticals: MajorHealth Technology Develops, manufactures and markets pharmaceutical products | Health Technology |
Eton Pharmaceuticals, Inc.
 Eton Pharmaceuticals, Inc. Pharmaceuticals: MajorHealth Technology Develops and commercializes prescription drug products | Health Technology |
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