# EDGAR Filing Document

**Accession Number:** 0001787518
**File Stem:** 0001213900-26-048285
**Filing Date:** 2026-4
**Character Count:** 6444
**Document Hash:** 7273a18a067f2b5424d0cf8caa95ea8f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-26-048285.hdr.sgml**: 20260428

**ACCESSION NUMBER**: 0001213900-26-048285

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260428

**DATE AS OF CHANGE**: 20260428

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** T3 Defense Inc.
- **CENTRAL INDEX KEY:** 0001787518
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-MANAGEMENT CONSULTING SERVICES [8742]
- **ORGANIZATION NAME:** 07 Trade & Services
- **EIN:** 383912845
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-92171
- **FILM NUMBER:** 26903253

**BUSINESS ADDRESS:**
- **STREET 1:** 575 FIFTH AVENUE, 14TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10017
- **BUSINESS PHONE:** 212-791-4663

**MAIL ADDRESS:**
- **STREET 1:** 575 FIFTH AVENUE, 14TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10017

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Nukkleus Inc.
- **DATE OF NAME CHANGE:** 20240102

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Brilliant Acquisition Corp
- **DATE OF NAME CHANGE:** 20190909
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Shalom Menachem
- **CENTRAL INDEX KEY:** 0002030245

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

**MAIL ADDRESS:**
- **STREET 1:** 307 WEST 38TH STREET
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10036

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

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 1)**

**T3 Defense Inc.**

*(Name of Issuer)*

**Common Stock, $0.0001 par value per share**

*(Title of Class of Securities)*

**—**

*(CUSIP Number)*

**Menachem Shalom**<br>575 Fifth Avenue, 14th Floor<br>New York NY 10017<br>212-791-4663

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**04/27/2026**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Shalom Menachem** | Name of reporting person<br>**Shalom Menachem** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**L3** | Citizenship or place of organization<br>**L3** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**14859080.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**14859080.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**14859080.00** | Aggregate amount beneficially owned by each reporting person<br>**14859080.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**25.42%** | Percent of class represented by amount in Row (11)<br>**25.42%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** This percentage is calculated based on (a) 51,270,525 shares of Common Stock issued and outstanding as of April 27, 2026 and 7,175,662 shares of Common Stock issuable upon exercise of warrants held by the Reporting Person.

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Stock, $0.0001 par value per share

**(b) Name of Issuer:**
T3 Defense Inc.

**(c) Address of Issuer's Principal Executive Offices:**
575 Fifth Avenue, 14th Floor, New York, NY, 10017

This Amendment No. 1 to Statement on Schedule 13D filed on January 20, 2026 with the Securities and Exchange Commission with respect to the Common Stock, par value $0.0001 per share, of T3 Defense Inc., is being filed pursuant to Rule 13d-2 of the Securities Exchange Act of 1934, as amended, to amend and supplement certain information set forth below in the items indicated. Only those items that are amended or supplemented are reported herein. All capitalized terms used in this Amendment No. 1 and not otherwise defined herein have the meanings ascribed to such terms in the Schedule 13D. Except as amended and supplemented herein, the Schedule 13D, including the definitions of terms not otherwise defined herein, remains in full force and effect.

**Item 5. Interest in Securities of the Issuer**

**(a)**
The Reporting Person may be deemed to beneficially own an aggregate of 14,859,080 shares of Common Stock, representing approximately 25.4% of the outstanding shares of Common Stock of the Issuer. This amount consists of: (i) 7,683,418 shares of Common Stock; and (ii) 7,175,662 shares of Common Stock issuable upon exercise of warrants.

The percentage calculation is based on (a) 51,270,525 shares of Common Stock outstanding as of April 27, 2026 and (b) 7,175,662 shares of Common Stock issuable upon exercise of warrants held by the Reporting Person.

**(b)**
The Reporting Person has sole voting and dispositive power with respect to 14,859,080 shares of Common Stock and shared voting and dispositive power with respect to 0 shares of Common Stock.

**(c)**
—

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Shalom Menachem

**Signature:** /s/ Shalom Menachem

**Name/Title:** Shalom Menachem

**Date:** 04/28/2026