[Form 4] HUNTINGTON INGALLS INDUSTRIES, INC. Insider Trading Activity

Rhea-AI Filing Summary

Frank R. Jimenez, a director of Huntington Ingalls Industries, Inc. (HII), reported deferring 2,988.869 shares of common stock into a stock unit account under the 2022 Long-Term Incentive Stock Plan. The transaction is recorded as an exempt in-plan deferral under Rule 16b-3 and is shown as an acquisition at an effective price of $286.01 on 10/01/2025. After the reported transaction, Mr. Jimenez is recorded as directly owning 550 shares of common stock. The Form 4 was submitted through an attorney-in-fact signature.

Positive

• 2,988.869 shares deferred into stock units under the 2022 Long-Term Incentive Stock Plan
• Transaction reported as an exempt in-plan deferral pursuant to Rule 16b-3, indicating compliance with Section 16 rules
• Reporting person retains 550 directly owned shares after the transaction

Negative

• None.

Insights

Corporate Governance Expert

Director deferred nearly 3,000 shares into company stock units, indicating compensation election under the LTIP.

This filing documents a non-cash compensation action: 2,988.869 shares were moved into a stock unit account under the 2022 Long-Term Incentive Stock Plan in an exempt transaction under Rule 16b-3. Such deferrals convert equity awards into deferred stock units rather than immediate sales.

The filing also shows Mr. Jimenez retains 550 directly owned shares, and the reported execution price for valuation is $286.01 on 10/01/2025. This is a governance-level disclosure of insider compensation elections, not an open-market buy or sell.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Jimenez Frank R

(Last) (First) (Middle)

4101 WASHINGTON AVENUE

(Street)

NEWPORT NEWS VA 23607

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
HUNTINGTON INGALLS INDUSTRIES, INC. [ HII ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
10/01/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock (SUA)	10/01/2025		A		144(1)	A	$286.01	2,988.869	D
Common Stock								550	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan in an exempt transaction pursuant to Rule 16b-3.

Remarks:

	/s/ Tiffany M. King, Attorney-in-Fact	10/02/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did HII director Frank R. Jimenez report on Form 4?

He reported deferring 2,988.869 shares of common stock into a stock unit account under the 2022 Long-Term Incentive Stock Plan.

Was the transaction an open-market purchase or sale for HII (ticker: HII)?

No. The Form 4 shows an exempt in-plan deferral under Rule 16b-3, not an open-market purchase or sale.

What price or valuation is shown for the deferred shares?

The transaction is recorded at an effective price of $286.01 on 10/01/2025.

How many HII shares does the reporting person beneficially own after the transaction?

The form lists 550 shares of common stock beneficially owned following the reported transaction.

Under which plan were the shares deferred?

The shares were deferred under the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan.