Form 4 for HII Huntington Ingalls Industries

Accepted 2026-02-27 00:00:00 ET · period of report 2026-02-25 · accession 0001846302-26-000004 · 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	Stiehle Thomas E.	CFO, Ex. VP	F - Tax	$435.58	-3,806	29.2K	-12%	-$1.66M
D	2026-02-27	2026-02-25	HII	Stiehle Thomas E.	CFO, Ex. VP	A - Grant	$435.58	+8,440	33.0K	+34%	+$3.68M
D	2026-02-27	2026-02-25	HII	Stiehle Thomas E.	CFO, Ex. VP	A - Grant	$0.00	+1,239	4,499	+38%	$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	F	D	3,806.44	$435.58	29,156.74	D	—	—	(F2) Shares withheld by issuer for payment of withholding taxes on RPSRs.
2	Common	Common Stock	2026-02-25	A	A	8,440	$435.58	32,963.18	D	—	—	(F1) Shares issued upon settlement of restricted performance stock rights ("RPSRs") for the performance period that ended on 12/31/2025.
3	Derivative	Restricted Stock Rights	2026-02-25	A	A	1,239	$0.00	4,499.42	D	— · — to —	1,239 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.