HII director gets 20.786 stock units from dividends

HII director Stephanie L. O'Sullivan received a small dividend-equivalent credit of additional stock units under the company’s long‑term incentive plans.

Rhea-AI Filing Summary

HUNTINGTON INGALLS INDUSTRIES, INC. (HII) reported that director Stephanie L. O'Sullivan acquired 20.786 director stock units (SUAs) of common stock equivalents on September 11, 2026. These units represent dividend equivalents credited under the company’s 2012 and 2022 Long-Term Incentive Stock Plans, bringing her directly held SUAs to 4,233.489.

Insider Trade Summary

Grant/Award: 20.786 shares

Grant/Award 1 txn

Insider O'Sullivan Stephanie L.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock (SUA) F1	20.786	$0.00	$0.00

Holdings After Transaction: Common Stock (SUA) — 4,233.489 shares (Direct)

Footnotes (1)

1. F1. 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.

Key Figures

SUAs acquired: 20.786 SUAs Transaction price per SUA: $0.0000 per unit SUAs held after transaction: 4,233.489 SUAs +2 more

5 metrics

SUAs acquired 20.786 SUAs Dividend-equivalent grant on September 11, 2026

Transaction price per SUA $0.0000 per unit Grant or award acquisition of SUAs

SUAs held after transaction 4,233.489 SUAs Direct holdings following the September 11, 2026 award

Right per SUA 1 share of common stock Each SUA represents a right to receive one HII common share

Payout timing Within 30 days SUAs generally payable after a non-employee director ceases board service

Key Terms

dividend equivalents, director stock unit ("SUA"), Long-Term Incentive Stock Plan

3 terms

dividend equivalents financial

"dividend equivalents are credited on each director stock unit ("SUA") held"

Payments tied to employee or contractor equity awards that mirror the cash dividends paid on the company’s stock; they give the holder the same economic benefit as owning the shares without transferring actual shares—often paid in cash or additional award units when the award becomes payable. Investors care because these payments affect a company’s compensation costs, cash flow and potential share dilution, and they signal how management is being rewarded and aligned with shareholders.

director stock unit ("SUA") financial

"dividend equivalents are credited on each director stock unit ("SUA") held"

Long-Term Incentive Stock Plan financial

"Pursuant to the Huntington Ingalls Industries, Inc. 2012 and 2022 Long-Term Incentive Stock Plan"

A long-term incentive stock plan is a company program that pays key employees and executives with company shares or stock-based awards that become theirs only after meeting performance goals or staying with the company for several years. Think of it as a delayed bonus paid in stock that ties pay to future results; investors watch these plans because they influence executive behavior, can dilute existing shares, and affect reported costs and long-term shareholder value.

FAQ

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

What insider transaction did HII disclose for director Stephanie L. O'Sullivan?

HII disclosed that director Stephanie L. O'Sullivan acquired 20.786 SUAs (director stock units) on September 11, 2026 as a grant or award related to dividend equivalents under the company’s long-term incentive stock plans.

How many HII stock units does Stephanie L. O'Sullivan hold after this Form 4 transaction?

After the reported transaction, Stephanie L. O'Sullivan directly holds 4,233.489 SUAs, each representing the right to receive one share of HII common stock, generally payable within 30 days after she ceases service as a non-employee director.

What are SUAs in the context of HII (HII) insider filings?

At HII, each SUA (director stock unit) represents a right to receive one share of common stock. SUAs accrue dividend equivalents, which are credited after each quarterly cash dividend and are payable when a non-employee director leaves the board.

How were the 20.786 SUAs for HII’s director calculated?

The 20.786 SUAs were calculated by dividing the aggregate cash dividend paid on all SUAs held by the director by the closing price of HII common stock on the dividend payment date, as provided under the company’s 2012 and 2022 Long-Term Incentive Stock Plans.

Was this HII Form 4 transaction made under a Rule 10b5-1 trading plan?

No. The filing indicates the Rule 10b5-1 checkbox is not affirmed, and the footnote describes this as dividend equivalents credited under HII’s long-term incentive stock plans, rather than trades under a pre-arranged trading plan.

Did Stephanie L. O'Sullivan pay any price per share for the 20.786 HII SUAs?

No. The Form 4 reports a transaction price of $0.0000 per SUA, indicating the 20.786 SUAs were acquired as a grant or award of dividend equivalents rather than a market purchase.

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

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Available on EDGAR 09/14/2026 - 04:13 PM Accepted by SEC EDGAR 09/14/2026 - 04:13 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^*

O'Sullivan Stephanie L.

(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)
09/11/2026

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)	09/11/2026		A		20.786(1)	A	$0	4,233.489	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	09/14/2026
	** 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)