Heather Brilliant, CFA | Diamond Hill

Chief Operating Officer, First Eagle Investments and Head of Diamond Hill

Heather Brilliant is chief operating officer of First Eagle Investments and head of the Diamond Hill investment team. Heather became part of First Eagle in 2026 upon the firm›s acquisition of Diamond Hill, which she had joined in 2019 as chief executive officer. Previously, she was chief executive officer of the Americas region at First State Investments. Before that, she spent nearly 14 years with Morningstar, where she served as global head of equity and credit research before being named chief executive officer of Morningstar Australasia. Heather earned a BA in economics from Northwestern University and an MBA from the University of Chicago. She holds the Chartered Financial Analyst designation.

Recent insights

Heather Brilliant on NYSE Live

7 November 2025

CEO Heather Brilliant discusses the recent launch of Diamond Hill’s active ETF, DHLX, and why small caps present opportunity today for active investors. (5 min video)

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Diversification in 2025: Strategies for a Balanced Investment Portfolio

3 November 2025

CEO Heather Brilliant, CFA, recently stopped by FINTECH.TV for an episode of Market Movers, discussing concentration risks related to the AI boom and opportunities our team is finding down the cap spectrum today. (5 min video)

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Masters in Business: Heather Brilliant

5 September 2024

CEO Heather Brilliant joins the podcast to discuss her background, Diamond Hill’s unique ownership mentality and long-term focus, and how the firm’s culture benefits both employees and clients. (56 min podcast)

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