<SEC-DOCUMENT>0000950123-17-004902-index.html : 20170531
<SEC-HEADER>0000950123-17-004902.hdr.sgml : 20170531
<ACCEPTANCE-DATETIME>20170512202139
<PRIVATE-TO-PUBLIC>
ACCESSION NUMBER:		0000950123-17-004902
CONFORMED SUBMISSION TYPE:	DRS/A
PUBLIC DOCUMENT COUNT:		18
FILED AS OF DATE:		20170515
<PUBLIC-REL-DATE>20170531
DATE AS OF CHANGE:		20170522

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BYLINE BANCORP, INC.
		CENTRAL INDEX KEY:			0001702750
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				363012593

	FILING VALUES:
		FORM TYPE:		DRS/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	377-01538
		FILM NUMBER:		17840693

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		773-244-7000

	MAIL ADDRESS:	
		STREET 1:		180 NORTH LASALLE STREET, SUITE 300
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60601
</SEC-HEADER>
<DOCUMENT>
<TYPE>DRS/A
<SEQUENCE>1
<FILENAME>filename1.htm
<TEXT>
Document 1 - file: filename1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g354215g00x35.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g354215g00x35.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g354215g18h14.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g354215g18h14.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g354215g39j36.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g354215g39j36.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g354215g45y50.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g354215g45y50.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g354215g49e59.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g354215g49e59.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g354215g50q14.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g354215g50q14.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g354215g53y91.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g354215g53y91.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>g354215g56d43.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: g354215g56d43.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>g354215g68a97.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: g354215g68a97.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>g354215g73v73.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: g354215g73v73.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>g354215g76t60.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: g354215g76t60.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>g354215g79z68.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 13 - file: g354215g79z68.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>g354215g80k33.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 14 - file: g354215g80k33.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>g354215g80m90.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 15 - file: g354215g80m90.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>16
<FILENAME>g354215g84s51.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 16 - file: g354215g84s51.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>17
<FILENAME>g354215g89g79.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 17 - file: g354215g89g79.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>18
<FILENAME>g354215g89h35.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 18 - file: g354215g89h35.jpg

</DOCUMENT>
</SEC-DOCUMENT>