Sam D'Amore is the founder and Chief Investment Officer of Cymer Capital, a concentrated international long-only equity fund investing in mid- to large-cap companies outside the U.S. that solve complex problems.

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Before founding Cymer in 2025, Sam was a Portfolio Manager at Trillium Asset Management, co-managing two diversified sustainable core portfolios. Prior to that, she spent 12 years at Jennison Associates as a Managing Director, covering global equities across multiple strategies. She began her career as a sell-side analyst at Credit Suisse and was later an investment analyst at Sound Energy Capital Management, a long-short energy hedge fund.

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Sam holds a B.A. in Physics from Harvard University. She serves on the investment committees of Manomet Conservation Sciences and the Unitarian Universalist Common Endowment Fund, and on the board of the Progress for Informatics & Energy Foundation.
Originally from Wales, Sam lives outside Boston with her family.