<SEC-DOCUMENT>0001104659-25-012990-index.html : 20250213
<SEC-HEADER>0001104659-25-012990.hdr.sgml : 20250213
<ACCEPTANCE-DATETIME>20250213164419
ACCESSION NUMBER:		0001104659-25-012990
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250213
DATE AS OF CHANGE:		20250213

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Orion Group Holdings Inc
		CENTRAL INDEX KEY:			0001402829
		STANDARD INDUSTRIAL CLASSIFICATION:	HEAVY CONSTRUCTION OTHER THAN BUILDING CONST - CONTRACTORS [1600]
		ORGANIZATION NAME:           	05 Real Estate & Construction
		IRS NUMBER:				260097459
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-83674
		FILM NUMBER:		25621063

	BUSINESS ADDRESS:	
		STREET 1:		12000 AEROSPACE SUITE 300
		CITY:			Houston
		STATE:			TX
		ZIP:			77034
		BUSINESS PHONE:		713-852-6500

	MAIL ADDRESS:	
		STREET 1:		12000 AEROSPACE SUITE 300
		CITY:			Houston
		STATE:			TX
		ZIP:			77034

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Orion Marine Group Inc
		DATE OF NAME CHANGE:	20070612

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Portolan Capital Management, LLC
		CENTRAL INDEX KEY:			0001350290
		ORGANIZATION NAME:           	
		IRS NUMBER:				201926326
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		2 INTERNATIONAL PLACE, 26TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110
		BUSINESS PHONE:		617.753.6400

	MAIL ADDRESS:	
		STREET 1:		2 INTERNATIONAL PLACE, 26TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110
</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>