<SEC-DOCUMENT>0000940394-13-000677.txt : 20130509
<SEC-HEADER>0000940394-13-000677.hdr.sgml : 20130509
<ACCEPTANCE-DATETIME>20130509111747
ACCESSION NUMBER:		0000940394-13-000677
CONFORMED SUBMISSION TYPE:	497
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20130509
DATE AS OF CHANGE:		20130509
EFFECTIVENESS DATE:		20130509

FILER:

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

	FILING VALUES:
		FORM TYPE:		497
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-172870
		FILM NUMBER:		13827198

	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>
<DOCUMENT>
<TYPE>497
<SEQUENCE>1
<FILENAME>efrprosupp_497.htm
<DESCRIPTION>EATON VANCE SENIOR FLOATING-RATE TRUST SUPPLEMENT DTD 5-9-2013
<TEXT>
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<TITLE>497 1 combsupps_497</TITLE>
<META NAME="author" CONTENT="Matt Manning">
<META NAME="date" CONTENT="05/09/2013">
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<P style="margin-top:0px; margin-bottom:16.667px" align=center>EATON VANCE SENIOR FLOATING-RATE TRUST<BR>
Supplement to Prospectus dated November 14, 2012 and Prospectus Supplement dated March 15, 2013</P>
<P style="margin-top:5.533px; margin-bottom:5px" align=justify>The following replaces any references, contained either in the Prospectus or the Prospectus Supplement, with respect to the Trust&#146;s: (i) last reported sale price; (ii) net asset value (&#147;NAV&#148;) per Common Share; (iii) percentage premium to NAV per Common Share; (iv) number of Common Shares outstanding; and (v) net assets.</P>
<P style="margin-top:5.533px; margin-bottom:5px; padding-left:48px" align=justify>On May 8, 2013, the last reported sale price, NAV per Common Share and percentage premium to NAV per Common Share, were $17.14, $16.07 and 6.66%, respectively. &nbsp;As of May 8, 2013, we had 36,174,234 Common Shares outstanding and net assets of approximately $581,288,758.</P>
<P style="margin-top:5.533px; margin-bottom:5px" align=justify>The following replaces the last sentence in the first paragraph under &#147;Use of Proceeds&#148; in the Prospectus Supplement:</P>
<P style="margin-top:5.533px; margin-bottom:5px; padding-left:48px" align=justify>Assuming the sale of all of the Common Shares offered under this Prospectus Supplement and the accompanying Prospectus, at the last reported sale price of $17.14 per share for our Common Shares on the NYSE as of May 8, 2013, we estimate that the net proceeds of this offering will be approximately $28,681,600 after deducting the estimated sales load.</P>
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<P style="margin-top:0px; margin-bottom:5px">May 9, 2013</P>
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