Stauffer Mark R. [Rocket]

Date	Name	Symbol	Type	Security	Shares	Price	Value	Reported
03/02/2022	Orion Group Holdings Inc	ORN	Payment of Exercise	Common Stock	2.8k	$3.12	$8.8k	03/02/2022
08/20/2021	Orion Group Holdings Inc	ORN	Payment of Exercise	Common Stock	15.8k	$5.31	$83.7k	08/18/2021
08/18/2021	Orion Group Holdings Inc	ORN	Grant	Common Stock	335.7k	$0.00	$0	08/18/2021
08/18/2021	Orion Group Holdings Inc	ORN	Payment of Exercise	Common Stock	62.7k	$5.44	$341.1k	08/18/2021
05/24/2021	Orion Group Holdings Inc	ORN	Payment of Exercise	Common Stock	13.8k	$6.27	$86.8k	05/21/2021
05/21/2021	Orion Group Holdings Inc	ORN	Payment of Exercise	Common Stock	7.5k	$6.21	$46.4k	05/21/2021
05/19/2021	Orion Group Holdings Inc	ORN	Grant	Common Stock	88k	$0.00	$0	05/19/2021
03/02/2021	Orion Group Holdings Inc	ORN	Payment of Exercise	Common Stock	2.9k	$5.46	$15.6k	03/02/2021
08/20/2020	Orion Group Holdings Inc	ORN	Payment of Exercise	Common Stock	31.5k	$3.13	$98.6k	08/20/2020
08/20/2020	Orion Group Holdings Inc	ORN	Grant	Common Stock	168.8k	$0.00	$0	08/20/2020
05/26/2020	Orion Group Holdings Inc	ORN	Payment of Exercise	Common Stock	6.2k	$2.48	$15.3k	05/21/2020
05/21/2020	Orion Group Holdings Inc	ORN	Grant	Common Stock	60k	$0.00	$0	05/21/2020
03/16/2020	Orion Group Holdings Inc	ORN	Purchase	Common Stock	6.5k	$1.61	$10.5k	03/16/2020
03/02/2020	Orion Group Holdings Inc	ORN	Grant	Common Stock	20.1k	$0.00	$0	03/02/2020
05/24/2019	Orion Group Holdings Inc	ORN	Grant	Common Stock	37.5k	$0.00	$0	05/24/2019
05/24/2019	Orion Group Holdings Inc	ORN	Purchase	Common Stock	5k	$1.95	$9.8k	05/24/2019
07/17/2018	Orion Group Holdings Inc	ORN	Sale	Common stock	10k	$9.00	$90k	07/17/2018
06/25/2018	Orion Group Holdings Inc	ORN	Sale	Common stock	10k	$8.50	$85k	06/25/2018
05/30/2018	Orion Group Holdings Inc	ORN	Sale	Common stock	10k	$8.00	$80k	05/30/2018
05/24/2018	Orion Group Holdings Inc	ORN	Grant	Common stock	73.7k	$0.00	$0	05/24/2018
05/24/2018	Orion Group Holdings Inc	ORN	Grant	Common Stock	36.9k	$0.00	$0	05/24/2018
05/24/2018	Orion Group Holdings Inc	ORN	Grant	Common Stock Options	98.9k	$7.46	$738k	05/24/2018
05/09/2018	Orion Group Holdings Inc	ORN	Exercise (in-the-money or at-the-money)	Common Stock Options	29.9k	$6.00	$179.2k	05/09/2018
12/12/2017	Orion Group Holdings Inc	ORN	Sale	Common stock	20k	$7.56	$151.1k	12/12/2017
05/19/2016	Orion Group Holdings Inc	ORN	Grant	Common Stock Options	89.8k	$4.94	$443.7k	05/19/2016
05/19/2016	Orion Group Holdings Inc	ORN	Grant	Common Stock	30.4k	$0.00	$0	05/19/2016
05/19/2016	Orion Group Holdings Inc	ORN	Grant	Common stock	60.7k	$0.00	$0	05/19/2016
09/06/2012	Orion Group Holdings Inc	ORN	Sale	Common stock	20k	$7.78	$155.5k	09/06/2012
11/19/2009	Orion Group Holdings Inc	ORN	Grant	Common stock options	20.6k	$19.11	$393k	11/19/2009
11/19/2009	Orion Group Holdings Inc	ORN	Grant	Common stock	9.2k	$0.00	$0	11/19/2009