Form 4 for HII Huntington Ingalls Industries

Accepted 2026-02-27 00:00:00 ET · period of report 2026-02-25 · accession 0001808160-26-000004 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
D	2026-02-27	2026-02-25	HII	Boudreaux Chad N.	CLO, Ex VP	A - Grant	$435.58	+6,470	27.5K	+31%	+$2.82M
D	2026-02-27	2026-02-25	HII	Boudreaux Chad N.	CLO, Ex VP	F - Tax	$435.58	-2,918	24.5K	-11%	-$1.27M
D	2026-02-27	2026-02-25	HII	Boudreaux Chad N.	CLO, Ex VP	A - Grant	$0.00	+1,136	3,964	+40%	$0

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2026-02-25	A	A	6,470	$435.58	27,450.20	D	—	—	(F1) Shares issued upon settlement of restricted performance stock rights ("RPSRs") for the performance period that ended on 12/31/2025.
2	Common	Common Stock	2026-02-25	F	D	2,917.97	$435.58	24,532.23	D	—	—	(F2) Shares withheld by issuer for payment of withholding taxes on RPSRs.
3	Derivative	Restricted Stock Rights	2026-02-25	A	A	1,136	$0.00	3,963.87	D	— · — to —	1,136 Common Stock	(F3) Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan ("LTISP") on 2/25/26 and vest ratably in three equal installments upon each of the first, second, and third anniversaries of the grant date.