Huntington Ingalls director acquires 177 shares

After the acquisition, the reported direct position was 7,232 Common Stock (SUA) shares, alongside 575 shares of direct Common Stock.

Rhea-AI Filing Summary

Huntington Ingalls Industries (HII) director Kirkland H. Donald acquired 177 shares of Common Stock (SUA) on October 1, 2026. The shares were deferred into a stock unit account under the 2022 Long-Term Incentive Stock Plan, in a transaction described as exempt under Rule 16b-3. The transaction lists $274.33 per share. His reported direct Common Stock (SUA) position afterward was 7,232 shares; a separate entry listed 575 direct Common Stock shares.

Insider Trade Summary

Grant/Award: 177 shares

Grant/Award 2 txns

Insider DONALD KIRKLAND H

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock (SUA) F1	177	$274.33	$49K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock (SUA) — 7,232.202 shares (Direct); Common Stock — 575 shares (Direct)

Footnotes (1)

1. F1. 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.

Key Figures

Shares acquired: 177 shares Reported amount per share: $274.33 per share Direct Common Stock (SUA) position: 7,232 shares +1 more

4 metrics

Shares acquired 177 shares October 1, 2026 acquisition

Reported amount per share $274.33 per share Reported with the October 1, 2026 acquisition

Direct Common Stock (SUA) position 7,232 shares Reported following the transaction

Direct Common Stock holding 575 shares Separate holding entry dated October 1, 2026

Key Terms

stock unit account, 2022 Long-Term Incentive Stock Plan, Rule 16b-3

3 terms

stock unit account financial

"deferred into stock unit account"

2022 Long-Term Incentive Stock Plan financial

"2022 Long-Term Incentive Stock Plan"

Rule 16b-3 regulatory

"exempt transaction pursuant to Rule 16b-3"

Rule 16b-3 is a Securities and Exchange Commission regulation that exempts certain routine, pre-approved transactions by company insiders from automatic liability for short-term trading profits. It acts like a safe harbor: if an insider follows a formal plan or the board approves specific transactions in advance, profits from buying and selling company stock within six months are not automatically reclaimed. Investors care because the rule clarifies when insider trades are permissible and reduces uncertainty about potential clawbacks.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many shares did HII director Kirkland H. Donald acquire?

He acquired 177 shares of Common Stock (SUA) on October 1, 2026. The shares were deferred into a stock unit account under Huntington Ingalls Industries' 2022 Long-Term Incentive Stock Plan; the reported amount was $274.33 per share.

What were Kirkland H. Donald's HII holdings after the transaction?

His reported direct Common Stock (SUA) position afterward was 7,232 shares. A separate entry listed 575 shares of direct Common Stock.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/02/2026 - 04:23 PM Accepted by SEC EDGAR 10/02/2026 - 04:22 PM Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

DONALD KIRKLAND H

(Last) (First) (Middle)

4101 WASHINGTON AVENUE

(Street)

NEWPORT NEWS VIRGINIA 23607

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/01/2026

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

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

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

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)	10/01/2026		A		177(1)	A	$274.33	7,232.202	D
Common Stock								575	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	10/02/2026
	** 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.
* Form 4: SEC 1474 (03-26)