WILLIAM R. ERMATINGER - 01 Mar 2022 Form 4 Insider Report for HUNTINGTON INGALLS INDUSTRIES, INC. (HII)

Role: Ex. VP, Chief HR Officer
Signature: /s/ Kathy S. Owen, Attorney-in-Fact for William R> Ermatinger
Issuer symbol: HII
Transactions as of: 01 Mar 2022
Net transactions value: +$616,737
Form type: 4
Filing time: 03 Mar 2022, 20:12:10 UTC
Previous filing: 01 Mar 2022
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	HII	Common Stock	Award	$1,129,562	+5,533	+23%	$204.15	29,946	01 Mar 2022	Direct	F1
transaction	HII	Common Stock	Tax liability	$512,825	-2,512	-8.4%	$204.15	27,434	01 Mar 2022	Direct	F2
holding	HII	Common Stock						638	01 Mar 2022	By 401(k) plan

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	HII	SEP Unit						12,761	01 Mar 2022	Common Stock	2,999		Direct	F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The Huntington Ingalls Industries, Inc. Compensation Committee determined that all performance goals had been met for these restricted stock units, and they were issued on March 1, 2022.
F2	Shares withheld by the issuer for the payment of withholding taxes on restricted stock that vested on March 1, 2022.
F3	The reporting person's interest in the HII Stock Fund of the Huntington Ingalls Industries, Inc. Savings Excess Plan (the "Plan") is held in the form of units of interest. The Plan's administrator calculates the number of shares of issuer common stock represented by units in the HII Stock Fund.