Orbital ATK to Announce First Quarter 2017 Financial Results on May 11
Webcast of Conference Call with Financial Analysts to Begin at 9:00 a.m.

Dulles, Virginia 4 May 2017 – Orbital ATK, Inc. (NYSE: OA), a global leader in aerospace and defense technologies, today announced that it will release its first quarter 2017 financial results prior to the opening of the market on Thursday, May 11, 2017. At 9:00 a.m. (EDT) the same morning, Orbital ATK will webcast the live audio of a conference call with financial analysts during which the company will discuss the first quarter 2017 financial results and outlook for the year. The presentation materials to be used in conjunction with the call will be posted on the company’s web site. The call and webcast will be hosted by:

• David W. Thompson, President and Chief Executive Officer
• Garrett E. Pierce, Chief Financial Officer
• Blake E. Larson, Chief Operating Officer

To access the live webcast audio and presentation slides, visit Orbital ATK’s website at www.orbitalatk.com/investor.  A replay of the conference call webcast will be available later in the day. For those who do not have online access or cannot participate during the live call, a recording of the conference call can be accessed by dialing (855) 859-2056 and using the call ID 14565796.  Both the online and telephone replay will remain active until May 18, 2017.

About Orbital ATK

Orbital ATK is a global leader in aerospace and defense technologies. The company designs, builds and delivers space, defense and aviation systems for customers around the world, both as a prime contractor and merchant supplier. Its main products include launch vehicles and related propulsion systems; missile products, subsystems and defense electronics; precision weapons, armament systems and ammunition; satellites and associated space components and services; and advanced aerospace structures.  Headquartered in Dulles, Virginia, Orbital ATK employs approximately 12,500 people in 18 states across the U.S. and in several international locations.  For more information, visit www.orbitalatk.com.

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Print Press Release

Media Contact
Barron Beneski
(703) 406-5528
barron.beneski@orbitalatk.com
Investor Contact
Barron Beneski
(703) 406-5528
barron.beneski@orbitalatk.com
Media Contact
 Beneski
(703) 406-5528
barron.beneski@orbitalatk.com
Investor Contact
Barron Beneski
(703) 406-5528
barron.beneski@orbitalatk.com