<SEC-DOCUMENT>0001140361-19-015446-index.html : 20190822
<SEC-HEADER>0001140361-19-015446.hdr.sgml : 20190822
<ACCEPTANCE-DATETIME>20190822094030
ACCESSION NUMBER:		0001140361-19-015446
CONFORMED SUBMISSION TYPE:	424B3
PUBLIC DOCUMENT COUNT:		6
FILED AS OF DATE:		20190822
DATE AS OF CHANGE:		20190822

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			S&T BANCORP INC
		CENTRAL INDEX KEY:			0000719220
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				251434426
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-232611
		FILM NUMBER:		191044351

	BUSINESS ADDRESS:	
		STREET 1:		800 PHILADELPHIA STREET
		STREET 2:		PO BOX 190
		CITY:			INDIANA
		STATE:			PA
		ZIP:			15701
		BUSINESS PHONE:		724-427-2347

	MAIL ADDRESS:	
		STREET 1:		800 PHILADELPHIA STREET
		STREET 2:		PO BOX 190
		CITY:			INDIANA
		STATE:			PA
		ZIP:			15701
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B3
<SEQUENCE>1
<FILENAME>nt10003111x4_424b3.htm
<DESCRIPTION>424B3
<TEXT>
Document 1 - file: nt10003111x4_424b3.htm

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

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

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>nt10003111x4_footer.jpg
<TEXT>
Document 4 - file: nt10003111x4_footer.jpg

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

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

</DOCUMENT>
</SEC-DOCUMENT>