Tabb Robert L [Rocket]

Date	Name	Symbol	Type	Security	Shares	Price	Value	Reported
08/20/2021	Orion Group Holdings Inc	ORN	Payment of Exercise	Common Stock	5.3k	$5.31	$27.9k	08/18/2021
08/18/2021	Orion Group Holdings Inc	ORN	Payment of Exercise	Common Stock	20.9k	$5.44	$113.7k	08/18/2021
08/18/2021	Orion Group Holdings Inc	ORN	Grant	Common Stock	111.9k	$0.00	$0	08/18/2021
05/24/2021	Orion Group Holdings Inc	ORN	Payment of Exercise	Common Stock	2k	$6.27	$12.4k	05/21/2021
05/21/2021	Orion Group Holdings Inc	ORN	Payment of Exercise	Common Stock	2.5k	$6.21	$15.5k	05/21/2021
05/19/2021	Orion Group Holdings Inc	ORN	Grant	Common Stock	40k	$0.00	$0	05/19/2021
03/02/2021	Orion Group Holdings Inc	ORN	Payment of Exercise	Common Stock	1.9k	$5.46	$10.4k	03/02/2021
08/20/2020	Orion Group Holdings Inc	ORN	Payment of Exercise	Common Stock	10.5k	$3.13	$32.9k	08/20/2020
08/20/2020	Orion Group Holdings Inc	ORN	Grant	Common Stock	56.2k	$0.00	$0	08/20/2020
05/26/2020	Orion Group Holdings Inc	ORN	Payment of Exercise	Common Stock	1.6k	$2.48	$3.9k	05/21/2020
05/21/2020	Orion Group Holdings Inc	ORN	Grant	Common Stock	20k	$0.00	$0	05/21/2020
03/02/2020	Orion Group Holdings Inc	ORN	Grant	Common Stock	13.4k	$0.00	$0	03/02/2020
05/28/2019	Orion Group Holdings Inc	ORN	Purchase	Common Stock	5.8k	$1.94	$11.2k	05/28/2019
05/24/2019	Orion Group Holdings Inc	ORN	Grant	Common Stock	12.5k	$0.00	$0	05/24/2019
05/24/2019	Orion Group Holdings Inc	ORN	Purchase	Common Stock	20k	$1.94	$38.8k	05/24/2019