<SEC-DOCUMENT>0000940394-22-001178.txt : 20220701
<SEC-HEADER>0000940394-22-001178.hdr.sgml : 20220701
<ACCEPTANCE-DATETIME>20220701073702
ACCESSION NUMBER:		0000940394-22-001178
CONFORMED SUBMISSION TYPE:	424B3
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20220701
DATE AS OF CHANGE:		20220701

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EATON VANCE SENIOR FLOATING RATE TRUST
		CENTRAL INDEX KEY:			0001258623
		IRS NUMBER:				000000000
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		424B3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-229695
		FILM NUMBER:		221059632

	BUSINESS ADDRESS:	
		STREET 1:		TWO INTERNATIONAL PLACE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110
		BUSINESS PHONE:		617-482-8260

	MAIL ADDRESS:	
		STREET 1:		TWO INTERNATIONAL PLACE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	EATON VANCE SENIOR FLOATING RATE FUND
		DATE OF NAME CHANGE:	20030806
</SEC-HEADER>
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<TYPE>424B3
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<FILENAME>sfrtsupp.htm
<DESCRIPTION>EATON VANCE SENIOR FLOATING-RATE TRUST PRO AND SAI SUPPLEMENT DTD 7-1-2022
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<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0 9pt 0 0; text-align: center"><B>EATON VANCE SENIOR FLOATING-RATE TRUST</B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0 9pt 0 0; text-align: center"><B>Supplement to Prospectus dated February 28,
2022</B></P>

<P STYLE="font: 11pt Arial, Helvetica, Sans-Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 3pt 0 6pt"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 6pt 0"><B>1. The following replaces the fifth paragraph under &ldquo;Investment
Objectives, Policies and Risk&rdquo; in &ldquo;Prospectus Summary&rdquo; in the Prospectus<FONT STYLE="font-size: 11pt">:</FONT></B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 6pt 0">Sarah A. Choi, Catherine C. McDermott, Daniel P. McElaney and Andrew
N. Sveen are the portfolio managers of the Trust. Messrs. McElaney and Sveen and Ms. McDermott are Vice Presidents of Eaton Vance and
have managed the Trust since March 2019. Ms. Choi is a Vice President of Eaton Vance and has managed the Trust since July 2022. Messrs.
McElaney and Sveen and Ms. McDermott have been employed by Eaton Vance for more than five years and manage other Eaton Vance funds. Ms.
Choi has been employed by Eaton Vance since October 2019 and manages other Eaton Vance funds. Prior to joining Eaton Vance, Ms. Choi worked
as a Senior Credit Analyst at Apex Credit Partners from 2014 to 2019.</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 6pt 0"><B>2. The following replaces the fifth paragraph under &ldquo;The Adviser&rdquo;
in &ldquo;Management of the Trust&rdquo; in the Prospectus<FONT STYLE="font-size: 11pt">:</FONT></B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 6pt 0">Sarah A. Choi, Catherine C. McDermott, Daniel P. McElaney and Andrew
N. Sveen are the portfolio managers of the Trust. Messrs. McElaney and Sveen and Ms. McDermott are Vice Presidents of Eaton Vance and
have managed the Trust since March 2019. Ms. Choi is a Vice President of Eaton Vance and has managed the Trust since July 2022. Messrs.
McElaney and Sveen and Ms. McDermott have been employed by Eaton Vance for more than five years and manage other Eaton Vance funds. Ms.
Choi has been employed by Eaton Vance since October 2019 and manages other Eaton Vance funds. Prior to joining Eaton Vance, Ms. Choi worked
as a Senior Credit Analyst at Apex Credit Partners from 2014 to 2019.</P>

<P STYLE="font: 11pt Arial, Helvetica, Sans-Serif; margin: 6pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 49%; padding-top: 6pt; padding-bottom: 3pt; font: 10pt NewsGoth Dm BT"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif">July 1, 2022</FONT></TD>
    <TD STYLE="width: 51%; padding-top: 6pt; padding-bottom: 3pt; text-align: right; font: 10pt NewsGoth Dm BT">&nbsp;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 3pt 0 0">&nbsp;</P>


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<P STYLE="font: 10pt/107% Arial, Helvetica, Sans-Serif; margin: 0 0 8pt">&nbsp;</P>

<P STYLE="font: 10pt/101% Arial, Helvetica, Sans-Serif; margin: 0; text-align: center"><B>EATON VANCE SENIOR FLOATING-RATE TRUST</B></P>

<P STYLE="font: 10pt/101% Arial, Helvetica, Sans-Serif; margin: 0 0 0 14.1pt; text-align: center"><FONT STYLE="letter-spacing: -0.05pt"><B>Supplement
to Statement of Additional Information dated </B></FONT><B>February 28, 2022</B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0.5pt 0 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt NewsGoth Lt BT; margin-top: 3pt; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 22.5pt"><FONT STYLE="font-family: NewsGoth Dm BT,sans-serif"><B>1.</B></FONT></TD><TD><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif"><B>The following is added to the first table under &ldquo;Portfolio Managers.&rdquo;
in &ldquo;Investment Advisory and Other Services&rdquo;:</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 3pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 9pt NewsGoth XCn BT; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 31%; padding: 3pt 5.4pt 3pt 2.9pt; line-height: 10pt">&nbsp;</TD>
    <TD STYLE="width: 14%; border-bottom: Black 1pt solid; padding: 3pt 5.4pt; text-align: center; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">Number of<BR>
All Accounts</FONT></TD>
    <TD STYLE="width: 15%; border-bottom: Black 1pt solid; padding: 3pt 5.4pt; text-align: center; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">Total Assets of<BR>
All Accounts</FONT></TD>
    <TD STYLE="width: 20%; border-bottom: Black 1pt solid; padding: 3pt 5.4pt; text-align: center; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">Number of Accounts<BR>
Paying a Performance Fee</FONT></TD>
    <TD STYLE="width: 20%; border-bottom: Black 1pt solid; padding: 3pt 5.4pt; text-align: center; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">Total Assets of Accounts<BR>
Paying a Performance Fee</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding: 3pt 5.4pt 3pt 13.7pt; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">Sarah A. Choi<SUP>(1)</SUP></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center; line-height: 10pt">&nbsp;</TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center; line-height: 10pt">&nbsp;</TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center; line-height: 10pt">&nbsp;</TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center; line-height: 10pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding: 3pt 5.4pt 3pt 2.9pt; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">Registered Investment Companies</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">0</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">$0</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">0</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">$0</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding: 3pt 5.4pt 3pt 2.9pt; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">Other Pooled Investment Vehicles</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">0</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">$0</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">0</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">$0</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding: 3pt 5.4pt 3pt 2.9pt; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">Other Accounts</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">0</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">$0</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">0</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">$0</FONT></TD></TR>
  </TABLE>
<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt NewsGoth Lt BT; margin-top: 6pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 4.5pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif; font-size: 9pt"><SUP>(1)</SUP></FONT></TD><TD><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif; font-size: 9pt">As of May 31, 2022</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt NewsGoth Lt BT; margin-top: 3pt; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 24pt"><FONT STYLE="font-family: NewsGoth Dm BT,sans-serif"><B>2.</B></FONT></TD><TD><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif"><B>The following is added to the second table under &ldquo;Portfolio Managers.&rdquo;
in &ldquo;Investment Advisory and Other Services&rdquo;:</B></FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/101% Arial, Helvetica, Sans-Serif; margin: 0 5.85pt 0 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 9pt NewsGoth XCn BT; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 27%; border-bottom: Black 1pt solid; padding: 3pt 5.4pt 3pt 2.9pt; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">Portfolio Manager</FONT></TD>
    <TD STYLE="width: 37%; border-bottom: Black 1pt solid; padding: 3pt 5.4pt; text-align: center; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">Dollar Range of Equity Securities<BR>
Beneficially Owned in the Trust</FONT></TD>
    <TD STYLE="width: 36%; border-bottom: Black 1pt solid; padding: 3pt 5.4pt; text-align: center; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">Aggregate Dollar Range of Equity<BR>
Securities Beneficially Owned<BR>
in the Eaton Vance Family of Funds</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding: 3pt 5.4pt 3pt 2.9pt; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">Sarah A. Choi<SUP>(1)</SUP></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">None</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center; line-height: 10pt"><FONT STYLE="font-family: Arial Narrow, Helvetica, Sans-Serif">$1 - $10,000</FONT></TD></TR>
  </TABLE>
<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Arial Narrow, Helvetica, Sans-Serif; margin-top: 6pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 4.5pt"><SUP>(1)</SUP></TD><TD>As of May 31, 2022</TD></TR></TABLE>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 7.25pt 0 3pt"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 7.25pt 0 3pt"><FONT STYLE="letter-spacing: -0.05pt">July 1, 2022</FONT></P>


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