<SEC-DOCUMENT>0000950103-21-006590.txt : 20210603
<SEC-HEADER>0000950103-21-006590.hdr.sgml : 20210603
<ACCEPTANCE-DATETIME>20210503163444
<PRIVATE-TO-PUBLIC>
ACCESSION NUMBER:		0000950103-21-006590
CONFORMED SUBMISSION TYPE:	CORRESP
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20210503

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AC Immune SA
		CENTRAL INDEX KEY:			0001651625
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			V8
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		CORRESP

	BUSINESS ADDRESS:	
		STREET 1:		EPFL INNOVATION PARK, BUILDING B
		CITY:			1015 LAUSANNE
		STATE:			V8
		ZIP:			00000
		BUSINESS PHONE:		41 21 345 91 21

	MAIL ADDRESS:	
		STREET 1:		EPFL INNOVATION PARK, BUILDING B
		CITY:			1015 LAUSANNE
		STATE:			V8
		ZIP:			00000
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<TYPE>CORRESP
<SEQUENCE>1
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    <TD STYLE="font-size: 12pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt">May 3, 2021</FONT></TD></TR>
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    <TD STYLE="width: 6%; font-size: 12pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt">Re:</FONT></TD>
    <TD STYLE="width: 94%">
    <P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0pt 0">AC Immune SA<BR>
    Registration Statement on Form F-3<BR>
    Filed on April 28, 2021<BR>
    Registration No. 333-255576</P></TD></TR>
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<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0pt 0">Securities and Exchange Commission<BR>
Division of Corporation Finance<BR>
100 F Street, N.E.<BR>
Washington, D.C. 20549</P>

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

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

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

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0pt 0">In accordance with Rule 461 under the Securities Act of 1933, as amended,
the undersigned registrant hereby requests that the effective date for the Registration Statement referred to above be accelerated so
that it will be declared effective at 4:00 p.m. Eastern Daylight Time on May 5, 2021 or as soon thereafter as is practicable.</P>

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

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

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

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    <P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0pt 0">AC Immune SA&nbsp;</P></TD></TR>
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    <TD COLSPAN="2">&nbsp;</TD></TR>
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    <TD COLSPAN="2">&nbsp;</TD></TR>
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    <TD COLSPAN="2">&nbsp;</TD></TR>
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    <TD COLSPAN="2">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 15%; font-size: 12pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt">By:</FONT></TD>
    <TD STYLE="width: 85%; border-bottom: black 1pt solid; font-size: 12pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt">/s/ Andrea Pfeifer</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="font-size: 12pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt">Name: Andrea Pfeifer</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="font-size: 12pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt">Title: Chief Executive Officer</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD></TD>
    <TD>&nbsp;</TD></TR>
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    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 12pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt">By:</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; font-size: 12pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt">/s/ Joerg Hornstein</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="font-size: 12pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt">Name: Joerg Hornstein</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="font-size: 12pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt">Title: Chief Financial Officer</FONT></TD></TR>
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<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0pt 0">&nbsp;</P>

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

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