Chad N. Boudreaux - 26 Nov 2025 Form 4 Insider Report for HUNTINGTON INGALLS INDUSTRIES, INC. (HII)

Role: Ex VP & Chief Legal Officer
Signature: /s/ Tiffany M. King, Attorney-in-Fact
Issuer symbol: HII
Transactions as of: 26 Nov 2025
Net transactions value: -$247,216
Form type: 4
Filing time: 28 Nov 2025, 14:43:39 UTC
Previous filing: 15 Sep 2025
Next filing: 15 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Boudreaux Chad N.	Ex VP & Chief Legal Officer	4101 WASHINGTON AVENUE, NEWPORT NEWS	/s/ Tiffany M. King, Attorney-in-Fact	28 Nov 2025	0001808160

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	HII	Common Stock	Sale	$247,216	-787	-3.7%	$314.17	20,441	26 Nov 2025	Direct	F1

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

Explanation of Responses:

Id	Content
F1	Represents the weighted average sale price of $314.17 rounded to the nearest hundredth. The highest price at which the shares were sold was $314.18 and the lowest price at which the shares were sold was $314.12. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

Content

Represents the weighted average sale price of $314.17 rounded to the nearest hundredth. The highest price at which the shares were sold was $314.18 and the lowest price at which the shares were sold was $314.12. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.