WEBSTER SCOTT L [Rocket]

Date	Name	Symbol	Type	Security	Shares	Price	Value	Ownership	Reported
06/06/2018	ORBITAL ATK, INC.	OA	Disposition	Deferred Stock Units	2.2k	$134.50	$294.6k		06/06/2018
06/06/2018	ORBITAL ATK, INC.	OA	Disposition	Common Stock	12.2k	$134.50	$1.6M	By Trust	06/06/2018
06/06/2018	ORBITAL ATK, INC.	OA	Disposition	Common Stock	2.1k	$134.50	$279.2k		06/06/2018
05/04/2016	ORBITAL ATK, INC.	OA	Grant		1.1k	$0.00	$0		05/04/2016
05/10/2011	ORBITAL SCIENCES CORP /DE/	ORB	Sale	Common Stock	4.6k	$19.00	$87.3k		05/10/2011