X0306 4 2016-01-04 0 0001501585 HUNTINGTON INGALLS INDUSTRIES, INC. HII 0001185300 VON DER HEYDEN KARL M 4101 WASHINGTON AVENUE NEWPORT NEWS VA 23607 1 0 0 0 Common Stock 2016-01-04 4 A 0 201 124.22 A 1056 D Common Stock 13125.556 I See footnote Shares of common stock issued pursuant to the Huntington Ingalls Industries, Inc. 2012 Long-Term Incentive Stock Plan ("Plan"), in an exempt transaction pursuant to Rule 16b-3. In accordance with the Plan, after the Reporting Person has received restricted stock units equal to at least five times the cash portion of their annual retainer. The Reporting Person may elect annually to receive and directly own common stock, rather than receiving a credit for restricted stock units. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2011 and 2012 Long-Term Incentive Stock Plans, the number of shares is determined by dividing the aggregate amount of the dividend by the closing price of a share of common stock on the date of the payment of the dividend. Kathy S. Owen, Attorney-in-Fact for Karl M. von der Heyden 2016-01-06