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

Rhea-AI Filing Summary

Kelly Anastasi D, a director of Huntington Ingalls Industries, reported on Form 4 that 86.428 director stock units (SUAs) were credited to her account on 09/12/2025 as dividend equivalents under the company's 2012 and 2022 Long-Term Incentive Stock Plans. Each SUA represents a right to receive one share of common stock; the number of dividend equivalents is calculated by dividing the cash dividend on the SUAs by the closing stock price on the dividend payment date. Following the credited dividend equivalents, the reporting person beneficially owns 17,673.104 shares in a direct ownership form. The filing was signed by an attorney-in-fact on 09/15/2025.

Positive

• 86.428 SUAs credited as dividend equivalents under the LTISPs, increasing director holdings
• Total beneficial ownership increased to 17,673.104 shares in direct form following the crediting

Negative

• None.

Insights

Financial Analyst

TL;DR: A director received 86.428 SUAs as dividend equivalents, nudging direct beneficial ownership to 17,673.104 shares.

This Form 4 documents a routine, nondiscretionary crediting of dividend equivalents under existing LTISPs rather than an open-market purchase or option exercise. The transaction has no cash price and reflects dividend reinvestment mechanics for director compensation. For financial reporting, this does not indicate new cash outlay by the director nor a change in voting control beyond the modest increase in beneficial holdings.

Corporate Governance Expert

TL;DR: The filing records a standard plan-driven credit to a director's SUA holdings, consistent with director compensation practices.

The disclosure describes how dividend equivalents are credited and when SUAs become payable after service ends. This is a routine compliance filing showing adherence to the LTISPs' dividend-equivalent provision and timely Section 16 reporting. There are no indications of special arrangements, option grants, or derivative transactions in this submission.

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).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

KELLY ANASTASI D

(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)
09/12/2025

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)	09/12/2025		A		86.428(1)	A	$0	17,673.104	D
Common Stock								167	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. Pursuant to the Huntington Ingalls Industries, Inc. 2012 and 2022 Long-Term Incentive Stock Plan (together, the "LTISPs"), dividend equivalents are credited on each director stock unit ("SUA") held by the Reporting Person following the payment of the Company's quarterly cash dividend. Each SUA represents a right to receive one share of Company common stock, which will generally become payable within 30 days following the date a non-employee director ceases to provide services as a member of the board of directors. The number of dividend equivalents acquired by the Reporting Person under the LTISPs is calculated by dividing the aggregate amount of the dividend paid on the total number of SUAs held by the Reporting Person by the closing price of a share of Company common stock on the dividend payment date.

Remarks:

	/s/ Tiffany M. King, Attorney-in-Fact	09/15/2025
	** 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).
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