Historical shareholding details of Portolan Capital Management, LLC holdings in Orion Group Holdings Inc (ORN)

Monthly changes of Portolan Capital Management, LLC shareholding in Orion Group Holdings Inc over the previous months

Month	Name	Total no. shares held	Percent Holding
Month	Name	Total no. shares held	Percent Holding
Dec 31, 2024	Portolan Capital Management, Llc	448,691	1.15%

Sep 30, 2024	Portolan Capital Management, Llc	1,985,355	5.10%

Jul 10, 2024	Portolan Capital Management, Llc	1,806,575	4.64%

Jun 30, 2024	Portolan Capital Management, Llc	1,267,822	3.26%