Orion Group Holdings Announces Conference Participation

HOUSTON, Nov. 13, 2026 (GLOBE NEWSWIRE) -- Orion Group Holdings, Inc. (NYSE: ORN; NYSE TX: ORN) (the “Company” or “Orion”), a leading specialty construction company, today announced that management will participate in the following investor conferences: * 17(th) Annual Craig-Hallum Alpha Select Conference on November 17, 2026, in New York, NY

* 15(th) Annual ROTH Deer Valley Event on December 10-11, 2026, in Deer Valley, UT About Orion Group Holdings Orion Group Holdings, Inc., a leading specialty construction company serving the infrastructure, industrial and building sectors, provides services both on and off the water in the continental United States, Alaska, Hawaii, Canada and the Caribbean Basin through its marine segment and its concrete segment. The Company’s marine segment provides construction and dredging services relating to marine transportation facility construction, marine pipeline construction, marine environmental structures, dredging of waterways, channels and ports, environmental dredging, design and specialty services. Its concrete segment provides turnkey concrete construction services including place and finish, site prep, layout, forming, and rebar placement for large commercial, structural and other associated business areas. The Company is headquartered in Houston, Texas. The Company’s website is located at: https://www.oriongroupholdingsinc.com.