Baron International Growth Fund

Investors should consider the investment objectives, risks, and charges and expenses of the investment carefully before investing. The prospectus and summary prospectuses contain this and other information about the Funds. You may obtain them from the Funds’ distributor, Baron Capital, Inc., by calling 1-800-99BARON or visiting www.BaronCapitalGroup.com. Please read them carefully before investing.

Risks: Non-U.S. investments may involve additional risks to those inherent in U.S. investments, including exchange-rate fluctuations, political or economic instability, the imposition of exchange controls, expropriation, limited disclosure and illiquid markets. This may result in greater share price volatility. Securities of small and medium-sized companies may be thinly traded and more difficult to sell. Even though the Fund is diversified, it may establish significant positions where the Adviser has the greatest conviction. This could increase volatility of the Fund's returns.

The Fund may not achieve its objectives.

The MSCI ACWI ex USA Index Net (USD) is designed to measure the equity market performance of large and mid cap securities across 22 of 23 Developed Markets (DM) countries (excluding the US) and 24 Emerging Markets (EM) countries. The MSCI ACWI ex USA IMI Growth Index Net (USD) is designed to measure the performance of large, mid and small cap growth securities exhibiting overall growth style characteristics across 22 of 23 Developed Markets (DM) countries (excluding the United States) and 24 Emerging Markets (EM) countries. MSCI is the source and owner of the trademarks, service marks and copyrights related to the MSCI Indexes. The indexes and the Fund include reinvestment of dividends, net of foreign withholding taxes, which positively impact the performance results. The indexes are unmanaged. Index performance is not Fund performance. Investors cannot invest directly in an index.

Definitions (provided by BAMCO, Inc.): Standard Deviation: measures the degree to which a fund’s performance has varied from its average performance over a particular time period. The greater the standard deviation, the greater a fund’s volatility (risk). Sharpe Ratio: is a risk-adjusted performance statistic that measures reward per unit of risk. The higher the Sharpe ratio, the better a fund’s risk adjusted performance. Alpha: measures the difference between a fund’s actual returns and its expected performance, given its level of risk as measured by beta. Beta: measures a fund’s sensitivity to market movements. The beta of the market is 1.00 by definition. R-Squared: measures how closely a fund’s performance correlates to the performance of the benchmark index, and thus is a measurement of what portion of its performance can be explained by the performance of the index. Values for R-Squared range from 0 to 100, where 0 indicates no correlation and 100 indicates perfect correlation. Tracking Error: measures how closely a fund’s return follows the benchmark index returns. It is calculated as the annualized standard deviation of the difference between the fund and the index returns. Information Ratio: measures the excess return of a fund divided by the amount of risk the fund takes relative to the benchmark index. The higher the information ratio, the higher the excess return expected of the fund, given the amount of risk involved. Upside Capture: explains how well a fund performs in time periods where the benchmark’s returns are greater than zero. Downside Capture: explains how well a fund performs in time periods where the benchmark’s returns are less than zero

Definitions (provided by Baron Capital, Inc.): EPS Growth Rate (3-5 Year): indicates the long-term forecasted EPS growth of the companies in the portfolio, calculated using the weighted average of the available 3-to-5 year forecasted growth rates for each of the stocks in the portfolio provided by Factset Estimates. The EPS Growth rate does not forecast the Fund’s performance. Price/ Earnings Ratio (trailing 12-months): is a valuation ratio of a company’s current share price compared to its actual earnings per share over the last twelve months. Price/Book Ratio: is a ratio used to compare a company’s stock price to its tangible assets, and it is calculated by dividing the current closing price of the stock by the latest quarter’s book value per share. Price/Sales Ratio: is a valuation ratio of a stock’s price relative to its past performance. It represents the amount an investor is willing to pay for a dollar generated from a particular company’s operations. Price/Sales is calculated by dividing a stock’s current price by its revenue per share for the last 12 months. Weighted Harmonic Average: is a calculation that reduces the impact of extreme observation on the aggregate calculation by weighting them based on their size in the fund. Active Share is a term used to describe the share of a portfolio’s holdings that differ from that portfolio’s benchmark index. It is calculated by comparing the weight of each holding in the Fund to that holding’s weight in the benchmark. Positions with either a positive or negative weighting versus the benchmark have Active Share. An Active Share of 100% implies zero overlap with the benchmark. Active Share was introduced in 2006 in a study by Yale academics, M. Cremers and A. Petajisto, as a measure of active portfolio management.

One year turnover information to the most recent quarter and average market cap (unweighted) is available upon request.

The Global Industry Classification Standard (“GICS”) was developed by and is the exclusive property and a service mark of MSCI Inc. (“MSCI”) and S&P Global Market Intelligence (“S&P”) and is licensed for use by BAMCO, Inc. and Baron Capital Management, Inc. (each an “Adviser” and collectively “Baron Capital” or the “Firm”). Neither MSCI, S&P, nor any other party involved in making or compiling the GICS or any GICS classification makes any express or implied warranties or representations with respect to such standard or classification (or the results to be obtained by the use thereof), and all such parties hereby expressly disclaim all warranties of originality, accuracy, completeness, merchantability and fitness for a particular purpose with respect to any of such standard classification. Without limiting any of the foregoing, in no event shall MSCI, S&P, any of their affiliates or any third party involved in making or compiling the GICS or any GICS classifications have any liability for any direct, indirect, special, punitive, consequential or any other damages (including lost profits) even if notified of the possibility of such damages. All GICS structure changes that have occurred since 2016 have been applied retroactively in historical holdings-based analyses, including performance attribution. The Adviser may have reclassified/classified certain securities in or out of a sub-industry within a sector. Such reclassifications are not supported by S&P or MSCI.