# EDGAR Filing Document

**Accession Number:** 0001501585
**File Stem:** 0001501585-26-000015
**Filing Date:** 2026-3
**Character Count:** 2949
**Document Hash:** effcf173dd98db4643685283dd6b2586
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001501585-26-000015.hdr.sgml**: 20260320

**ACCESSION NUMBER**: 0001501585-26-000015

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260320

**DATE AS OF CHANGE**: 20260320

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** HUNTINGTON INGALLS INDUSTRIES, INC.
- **CENTRAL INDEX KEY:** 0001501585
- **STANDARD INDUSTRIAL CLASSIFICATION:** SHIP & BOAT BUILDING & REPAIRING [3730]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 900607005
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34910
- **FILM NUMBER:** 26778460

**BUSINESS ADDRESS:**
- **STREET 1:** 4101 WASHINGTON AVENUE
- **STREET 2:** 909-7, 7J2
- **CITY:** NEWPORT NEWS
- **STATE:** VA
- **ZIP:** 23607
- **BUSINESS PHONE:** (757) 380-2000

**MAIL ADDRESS:**
- **STREET 1:** 4101 WASHINGTON AVENUE
- **STREET 2:** 909-7, 7J2
- **CITY:** NEWPORT NEWS
- **STATE:** VA
- **ZIP:** 23607

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Huntington Ingalls Industries, Inc.
- **DATE OF NAME CHANGE:** 20101124

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** New Ships, Inc.
- **DATE OF NAME CHANGE:** 20101006

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** NEW S HOLDCO, INC.
- **DATE OF NAME CHANGE:** 20100917

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

**SCHEDULE 14A INFORMATION** 

**Proxy Statement Pursuant to Section 14(a) of the** 

**Securities Exchange Act of 1934** 

**(Amendment No.)** 

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| | | |
|:---|:---|:---|
| Filed by the Registrant ⌧ | Filed by the Registrant ⌧ | Filed by a Party other than the Registrant □ |
| Check the appropriate box: | Check the appropriate box: | Check the appropriate box: |
| □ | Preliminary Proxy Statement | Preliminary Proxy Statement |
| □ | **Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))** | **Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))** |
| □ | Definitive Proxy Statement | Definitive Proxy Statement |
| ⌧ | Definitive Additional Materials | Definitive Additional Materials |
| □ | Soliciting Material under §240.14a-12 | Soliciting Material under §240.14a-12 |

---

**HUNTINGTON INGALLS INDUSTRIES, INC.**

**(Name of Registrant as Specified in its Charter)** 

**(Name of Person(s) Filing Proxy Statement, if other than the Registrant)** 

---

| | |
|:---|:---|
| Payment of Filing Fee (Check all boxes that apply): | Payment of Filing Fee (Check all boxes that apply): |
| ⌧ | No fee required. |
| □ | Fee paid previously with preliminary materials. |
| □ | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11. |

---

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