BARON FUNDS^®

Baron Investment Funds Trust

Baron Select Funds

Supplement dated March 20, 2020 to Current Summary Prospectuses and Prospectuses

The following replaces “General Stock Market” in “Principal Risks of Investing in the Fund” in the summary prospectuses and in the prospectuses replaces “General Stock Market” in “Principal Risks of Investing in the Fund” for each Fund (in the Fund summary at the beginning of the prospectuses) and in “Information about the Fund[s]—Additional Investment Risks.”

General Stock Market. Fund losses may be incurred due to declines in one or more markets in which Fund investments are made. These declines may be the result of, among other things, political, regulatory, market, economic or social developments affecting the relevant market(s). In addition, turbulence and reduced liquidity in financial markets may negatively affect many issuers, which could have an adverse effect on your Fund investment. Global economies and financial markets are increasingly interconnected, and conditions and events in one country, region or financial market may adversely impact issuers in a different country, region or financial market. These risks may be magnified if certain events or developments adversely interrupt the global supply chain; in these and other circumstances, such risks might affect companies worldwide. As a result, local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issues, recessions or other events could have a significant negative impact on global economic and market conditions. The current novel coronavirus (COVID-19) global pandemic and the aggressive responses taken by many governments, including closing borders, restricting international and domestic travel, and the imposition of prolonged quarantines or similar restrictions, as well as the forced or voluntary closure of, or operational changes to, many retail and other businesses, has had negative impacts, and in many cases severe negative impacts, on markets worldwide. It is not known how long such impacts, or any future impacts of other significant events described above, will or would last, but there could be a prolonged period of global economic slowdown, which may impact your Fund investment.