BBH Partner Fund - International Equity Class Institutional (BBHLX) is an open-end mutual fund that seeks long-term maximization of total return, primarily through capital appreciation from investments in equity securities of large market capitalization companies located outside the United States; it primarily invests in developed market equities across regions including the Eurozone, Japan, the United Kingdom, Europe ex-Euro, and developed Asia, with allocations to non-U.S. stocks (approximately 88%), U.S. stocks (6%), and cash (6%). The fund employs a manager-of-managers approach overseen by Brown Brothers Harriman & Co. (BBH), through a separately identifiable department, with assets allocated to sub-advisers Select Equity Group, L.P. and Trinity Street Asset Management, LLP, whose fundamental, research-driven investment philosophies align with BBH's principles; BBH continuously monitors sub-adviser performance, portfolio characteristics, and organizational activity. Launched with Class I shares commencing operations on October 25, 2002 (with predecessor performance dating to April 1, 1995), the fund is domiciled in the United States, available for sale to U.S. investors with a minimum initial investment of $10,000, and features a net expense ratio of 0.63% and a 2.00% redemption fee for shares sold within 30 days. A significant recent change occurred on August 18, 2023, when Trinity Street Asset Management, LLP was added as a sub-adviser alongside Select Equity Group, L.P. to manage a portion of the fund's assets, enhancing its international equity strategy. BBH, the investment adviser and a New York limited partnership founded in 1818 with headquarters in New York, provides investment management services through its mutual fund complex, which includes the BBH Partner Funds series. As of late 2025, the fund manages approximately $2.44-$2.51 billion in total net assets, targeting institutional and qualified individual investors seeking exposure to foreign large growth equities.