Yvonne Greenstreet
April 7, 2026
2025 Year in Review & Look Ahead: CEO Yvonne Greenstreet on a Transformational Year for Al ...
Alnylam CEO Yvonne Greenstreet reflects on the company's accomplishments in 2025 and highlights of the 2025 annual report.
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October 28, 2021
Alnylam Names Dr. Yvonne Greenstreet New CEO
Dr. Yvonne Greenstreet, currently Alnylam's President and COO, has been named Alnylam's new CEO effective year-end 2021, taking over from Dr. John Maraganore.
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August 6, 2020
Alnylam Promotes Dr. Yvonne Greenstreet to President & COO
Dr. Yvonne Greenstreet, has been elevated to the role of President of Alnylam. She will retain her COO role as well.
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