Thomas S Fund Adviser

Thomas S. White Jr. serves as the sole portfolio manager and has led the strategy since its 1995 launch. He is supported by a small, unnamed research team. No co-manager or deputy portfolio manager has been disclosed in public regulatory filings.

The process begins with a quantitative screen across a universe of roughly 6,000 non-US companies, filtering for persistent earnings growth, strong returns on invested capital, and low financial leverage. Survivors undergo fundamental analysis that includes management interviews and competitive-position assessment. The portfolio is deliberately concentrated to reflect the screen's conviction output rather than index weights.

It operates as a traditional asset manager, specifically as a sub-adviser to one mutual fund. The firm is not a family office and bears no disclosed affiliation with the Thomas family wealth, despite the name — it is named for its founder.

The 'GW&K' in the fund's name refers to a different Boston-based investment manager. Thomas S Fund Adviser is an independent sub-adviser to the AMG GW&K International Small Cap Fund. GW&K Investment Management, a separate entity, serves as another sub-adviser to the same fund. The two firms are not legally or operationally linked.

The fund invests in non-US developed and emerging markets, with consistent exposure to Western Europe, Japan, Scandinavia, and, to a lesser extent, select emerging markets in Asia and Latin America. The portfolio avoids any single-country concentration.

No succession plan or named successor has been disclosed in the fund's prospectus, statement of additional information, or any public communication as of mid-2026. This is the most prominent operational risk for allocators evaluating the strategy.

As of mid-2026, the firm's sole public mandate is the AMG GW&K International Small Cap Fund. A UCITS version of the strategy launched in 2024, for which Thomas S Fund Adviser also acts as co-sub-adviser, but no additional distinct strategies are offered.