Group 1: Ariel Focus Fund Performance - Ariel Focus Fund experienced a decline of -0.50% in Q4 2025, underperforming the S&P 500 and Russell 1000 Value indices, which gained +2.66% and +3.81% respectively [1] - For the full year, the fund achieved a return of +20.97%, outperforming both benchmarks [1] - The quarter was characterized by a resilient U.S. market with easing inflation, stable corporate earnings, and optimism around accommodative monetary policy, despite geopolitical risks and labor market softening [1] Group 2: Investment Strategy and Outlook - The fund maintained a disciplined, long-term, bottom-up investment approach, selectively adding to positions without making exits during the quarter [1] - Management remains cautiously optimistic but notes elevated market concentration, valuation risks in large-cap leaders, and macro uncertainties [1] - Increasing dispersion and evolving market leadership are expected to create opportunities for active investors focusing on companies with strong balance sheets and long-term growth potential [1] Group 3: Affiliated Managers Group, Inc. (AMG) Insights - Affiliated Managers Group, Inc. (NYSE:AMG) faced a one-month return of -13.03%, with shares trading between $139.22 and $334.78 over the last 52 weeks [2] - As of March 30, 2026, AMG's stock closed at approximately $269.88 per share, with a market capitalization of about $7.59 billion [2] - AMG is building momentum with strong demand for differentiated, tax-aware investment solutions, particularly in the U.S. wealth channel, and is focused on scaling its alternatives segment to drive long-term value [3]

Core Insights - Ariel Focus Fund experienced a decline of -0.50% in Q4 2025, underperforming the S&P 500 and Russell 1000 Value indices, which gained +2.66% and +3.81% respectively, but achieved a +20.97% return over the full year [1] Fund Performance - The fund's performance in Q4 2025 was characterized by a resilient U.S. market with easing inflation, stable corporate earnings, and optimism around accommodative monetary policy [1] - The fund maintained a disciplined, long-term, bottom-up investment approach, selectively adding to positions without making exits during the quarter [1] Market Outlook - Management remains cautiously optimistic, noting elevated market concentration, valuation risks in large-cap leaders, and macro uncertainties [1] - Increasing dispersion and evolving market leadership are expected to create opportunities for active investors focusing on companies with strong balance sheets and durable earnings [1] Company Focus: The Mosaic Company (NYSE:MOS) - The Mosaic Company, a leading producer of phosphate and potash fertilizers, had a one-month return of -6.65% and traded between $22.36 and $38.23 over the last 52 weeks, closing at approximately $25.00 per share with a market capitalization of about $7.94 billion [2] - The Mosaic Company detracted from performance due to mixed earnings results and management commentary that did not meet investor expectations, with higher potash and phosphate prices offset by lower volumes and rising production costs [3] - Despite pressures, phosphate markets are expected to remain tight in the near term due to limited new supply, and the company is focused on cost discipline, free cash flow generation, and maintaining its investment-grade credit profile while returning significant capital to shareholders [3]