LOOMIS SAYLES FUNDS

NATIXIS FUNDS

NATIXIS ETFs

Supplement dated November 5, 2020 to the Loomis Sayles Funds Statements of Additional Information, dated February 1, 2020, Natixis Funds Statements of Additional Information, dated February 1, 2020, April 1, 2020, May 1, 2020, June 1, 2020 and September 29, 2020 and the Natixis ETFs Statements of Additional Information, dated May 1, 2020 and September 11, 2020 , as may be revised or supplemented from time to time, for the following funds:

AEW Global Focused Real Estate Fund	Loomis Sayles Small/Mid Cap Growth Fund
AlphaSimplex Global Alternatives Fund	Loomis Sayles Strategic Alpha Fund
AlphaSimplex Managed Futures Strategy Fund	Loomis Sayles Strategic Income Fund
AlphaSimplex Multi-Asset Fund	Mirova Global Green Bond Fund
Gateway Fund	Mirova Global Sustainable Equity Fund
Gateway Equity Call Premium Fund	Mirova International Sustainable Equity Fund
Loomis Sayles Bond Fund	Natixis Loomis Sayles Short Duration Income ETF
Loomis Sayles Core Plus Bond Fund	Natixis Oakmark Fund
Loomis Sayles Credit Income Fund	Natixis Oakmark International Fund
Loomis Sayles Fixed Income Fund	Natixis Seeyond International Minimum Volatility ETF
Loomis Sayles Global Allocation Fund	Natixis Sustainable Future 2015 Fund®
Loomis Sayles Global Bond Fund	Natixis Sustainable Future 2020 Fund®
Loomis Sayles Global Growth Fund	Natixis Sustainable Future 2025 Fund®
Loomis Sayles Growth Fund	Natixis Sustainable Future 2030 Fund®
Loomis Sayles High Income Fund	Natixis Sustainable Future 2035 Fund®
Loomis Sayles High Income Opportunities Fund	Natixis Sustainable Future 2040 Fund®
Loomis Sayles Inflation Protected Securities Fund	Natixis Sustainable Future 2045 Fund®
Loomis Sayles Institutional High Income Fund	Natixis Sustainable Future 2050 Fund®
Loomis Sayles Intermediate Duration Bond Fund	Natixis Sustainable Future 2055 Fund®
Loomis Sayles Intermediate Municipal Bond Fund	Natixis Sustainable Future 2060 Fund®
Loomis Sayles Investment Grade Bond Fund	Natixis U.S. Equity Opportunities Fund
Loomis Sayles Investment Grade Fixed Income	Natixis U.S. Equity Opportunities ETF
Loomis Sayles Limited Term Government and Agency Fund	Natixis Vaughan Nelson Mid Cap ETF
Loomis Sayles Securitized Asset Fund	Natixis Vaughan Nelson Select ETF
Loomis Sayles Senior Floating Rate and Fixed Income Fund	Vaughan Nelson Mid Cap Fund
Loomis Sayles Small Cap Growth	Vaughan Nelson Select Fund
Loomis Sayles Small Cap Value	Vaughan Nelson Small Cap Value Fund

Effective November 5, 2020, Kirk Johnson has resigned as Chief Compliance Officer, Assistant Secretary and Anti-Money Laundering Officer of the Trusts. Accordingly, effective immediately all references to Kirk Johnson are removed from each SAI.

Russell L. Kane has been appointed as Chief Compliance Officer and Anti-Money Laundering Officer of the Trusts. Accordingly, the “Officers of the Trust(s)” table located in the sub-section “Trustees and Officers” within the section “Management of the Trust(s)” in each SAI is hereby amended to include the following:

Name and Year of Birth	Position(s) Held with the Trust(s)	Term of Office1 and Length of Time Served	Principal Occupation(s) During Past 5 Years2
OFFICERS OF THE TRUST
Russell L. Kane (1969)	Secretary, Clerk and Chief Legal Officer,	Since July 2016	Executive Vice President, General Counsel, Secretary and Clerk, Natixis Distribution Corporation, Natixis Advisors, L.P. and Natixis
	Chief Compliance Officer and Anti-Money Laundering Officer	Since November 2020	Distribution, L.P.; formerly, Senior Vice President, Deputy General Counsel, Assistant Secretary and Assistant Clerk, Natixis Distribution Corporation, Natixis Advisors, L.P. and Natixis Distribution, L.P.

¹ Each officer of the Trust serves for an indefinite term in accordance with the Trust’s current by-laws until the date his or her successor is elected and qualified, or until he or she sooner dies, retires, is removed or becomes disqualified.

²  Each person listed above, except as noted, holds the same position(s) with the Fund Complex. Previous positions during the past five years with Natixis Distribution, L.P., Natixis Advisors, L.P. or Loomis, Sayles & Company, L.P. are omitted, if not materially different from a Trustee’s or officer’s current position with such entity.