<SEC-DOCUMENT>0001644956-25-000041-index.html : 20250801
<SEC-HEADER>0001644956-25-000041.hdr.sgml : 20250801
<ACCEPTANCE-DATETIME>20250801124307
ACCESSION NUMBER:		0001644956-25-000041
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250801
DATE AS OF CHANGE:		20250801

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Orion S.A.
		CENTRAL INDEX KEY:			0001609804
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS CHEMICAL PRODUCTS [2890]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		EIN:				000000000
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-88681
		FILM NUMBER:		251175096

	BUSINESS ADDRESS:	
		STREET 1:		1700 CITY PLAZA DRIVE, SUITE 300
		CITY:			SPRING
		STATE:			TX
		ZIP:			77389
		BUSINESS PHONE:		(281) 381-2959

	MAIL ADDRESS:	
		STREET 1:		1700 CITY PLAZA DRIVE, SUITE 300
		CITY:			SPRING
		STATE:			TX
		ZIP:			77389

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Orion Engineered Carbons S.A.
		DATE OF NAME CHANGE:	20140728

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Orion Engineered Carbons S.a r.l.
		DATE OF NAME CHANGE:	20140603

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
		CENTRAL INDEX KEY:			0001644956
		ORGANIZATION NAME:           	
		EIN:				472614791
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		150 NORTH RIVERSIDE PLAZA
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		312-236-1600

	MAIL ADDRESS:	
		STREET 1:		150 NORTH RIVERSIDE PLAZA
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
</SEC-DOCUMENT>