<SEC-DOCUMENT>0001140361-17-034881-index.html : 20170908
<SEC-HEADER>0001140361-17-034881.hdr.sgml : 20170908
<ACCEPTANCE-DATETIME>20170908095019
ACCESSION NUMBER:		0001140361-17-034881
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20170908
DATE AS OF CHANGE:		20170908
GROUP MEMBERS:		DRIEHAUS ACTIVE INCOME FUND

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Pinnacle Entertainment, Inc.
		CENTRAL INDEX KEY:			0001656239
		STANDARD INDUSTRIAL CLASSIFICATION:	HOTELS & MOTELS [7011]
		IRS NUMBER:				474668380
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-89482
		FILM NUMBER:		171075282

	BUSINESS ADDRESS:	
		STREET 1:		3980 HOWARD HUGHES PARKWAY
		CITY:			LAS VEGAS
		STATE:			NV
		ZIP:			89169
		BUSINESS PHONE:		702-541-7777

	MAIL ADDRESS:	
		STREET 1:		3980 HOWARD HUGHES PARKWAY
		CITY:			LAS VEGAS
		STATE:			NV
		ZIP:			89169

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PNK Entertainment, Inc.
		DATE OF NAME CHANGE:	20151020

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DRIEHAUS CAPITAL MANAGEMENT LLC
		CENTRAL INDEX KEY:			0000938206
		IRS NUMBER:				203634295
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		25 EAST ERIE ST
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60611
		BUSINESS PHONE:		3125873800

	MAIL ADDRESS:	
		STREET 1:		25 EAST ERIE ST
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60611

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DRIEHAUS CAPITAL MANAGEMENT INC
		DATE OF NAME CHANGE:	19950216
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>doc1.htm
<DESCRIPTION>NONE
<TEXT>
Document 1 - file: doc1.htm

</DOCUMENT>
</SEC-DOCUMENT>