The bar chart and table below illustrate the long-term performance of the Fund’s Institutional Class. The bar chart below shows you how the performance of the Fund’s Institutional Class has varied year by year and provides some indication of the risks of investing in the Fund. The bar chart assumes reinvestment of dividends and distributions. As with all such investments, past performance (before and after taxes) is not an indication of future results. Performance reflects fee waivers in effect. If fee waivers were not in place, the Fund’s performance would be reduced. Updated performance information is available at www.bostonpartners.com or 1-888-261-4073. Performance information is not available for the R6 Class shares of the Fund since the R6 Class shares had not commenced operations prior to the date of this Prospectus. The performance for the R6 Class shares would differ only to the extent that the R6 Class shares have different expenses than the Institutional Class shares.

Best and Worst Quarterly Performance (for the periods reflected in the chart above):

The Fund’s Institutional Class year-to-date total return for the six months ended June 30, 2026 was 12.45%.

The table shows how the average annual returns of the Institutional Class and Investor Class shares for 1 year, 5 year, and 10 year periods compare to the average annual total returns of a broad-based securities market index for the same periods. Performance information is not available for the R6 Class shares of the Fund since the R6 Class shares had not commenced operations prior to the date of this Prospectus. The performance for the R6 Class shares would differ only to the extent that the R6 Class shares have different expenses than the Institutional Class and Investor Class shares.

The bar chart and table below illustrate the long-term performance of the Fund’s Institutional Class. The bar chart below shows you how the performance of the Fund’s Institutional Class has varied year by year and provides some indication of the risks of investing in the Fund. The bar chart assumes reinvestment of dividends and distributions. As with all such investments, past performance (before and after taxes) is not an indication of future results. Performance reflects fee waivers in effect. If fee waivers were not in place, the Fund’s performance would be reduced. Updated performance information is available at www.bostonpartners.com or 1-888-261-4073. Performance information is not available for the R6 Class shares of the Fund since the R6 Class shares had not commenced operations prior to the date of this Prospectus. The performance for the R6 Class shares would differ only to the extent that the R6 Class shares have different expenses than the Institutional Class shares.

Best and Worst Quarterly Performance (for the periods reflected in the chart above):

The Fund’s Institutional Class year-to-date total return for the six months ended June 30, 2026 was 7.32%.

The table below compares the average annual total returns for the Fund’s Institutional Class, both before and after taxes for the past calendar year, past five calendar years and past ten calendar years to the average annual total returns of broad-based securities market indices for the same periods. Performance information is not available for the R6 Class shares of the Fund since the R6 Class shares had not commenced operations prior to the date of this Prospectus. The performance for the R6 Class shares would differ only to the extent that the R6 Class shares have different expenses than the Institutional Class shares.

The bar chart and table below illustrate the long-term performance of the Fund’s Institutional Class. The bar chart below shows you how the performance of the Fund’s Institutional Class has varied year by year and provides some indication of the risks of investing in the Fund. The bar chart assumes reinvestment of dividends and distributions. As with all such investments, past performance (before and after taxes) is not an indication of future results. Performance reflects fee waivers in effect. If fee waivers were not in place, the Fund’s performance would be reduced. Updated performance information is available at www.bostonpartners.com or 1-888-261-4073.

Best and Worst Quarterly Performance (for the periods reflected in the chart above):

The Fund’s Institutional Class year-to-date total return for the six months ended June 30, 2026 was 6.34%.

The table shows how the average annual returns of the Institutional Class and Investor Class shares for 1 year, 5 year, and 10 year periods compare to the average annual total returns of a broad-based securities market index for the same periods.

The bar chart and table below illustrate the performance of the Fund’s Institutional Class. The bar chart below shows you the performance of the Fund’s Institutional Class has varied year to year and provides some indication of the risks of investing in the Fund. The bar chart assumes reinvestment of dividends and distributions. As with all such investments, past performance (before and after taxes) is not an indication of future results. Performance reflects fee waivers in effect. If fee waivers were not in place, the Fund’s performance would be reduced. Updated performance information is available at www.bostonpartners.com or 1-888-261-4073.

Best and Worst Quarterly Performance (for the periods reflected in the chart above):

The Fund’s Institutional Class year-to-date total return for the six months ended June 30, 2026 was 33.71%.

The table below compares the average annual total returns for the Fund’s Institutional Class both before and after taxes for the one-year and since-inception periods to the average annual total returns of a broad-based securities market index for the same periods.