# EDGAR Filing Document

**Accession Number:** 0002108121
**File Stem:** 0002129828-26-000004
**Filing Date:** 2026-4
**Character Count:** 7508
**Document Hash:** bcc5432036d15a2a83b1abc87402e7bd
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002129828-26-000004.hdr.sgml**: 20260422

**ACCESSION NUMBER**: 0002129828-26-000004

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260409

**FILED AS OF DATE**: 20260422

**DATE AS OF CHANGE**: 20260422

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Martin Gregory Scott
- **CENTRAL INDEX KEY:** 0002129828

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-56821
- **FILM NUMBER:** 26882647

**MAIL ADDRESS:**
- **STREET 1:** 20 BIRCHWOOD
- **CITY:** IRVINE
- **STATE:** CA
- **ZIP:** 92618
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Ionetix Corp / DE /
- **CENTRAL INDEX KEY:** 0002108121
- **STANDARD INDUSTRIAL CLASSIFICATION:** BLANK CHECKS [6770]
- **ORGANIZATION NAME:** 05 Real Estate & Construction
- **EIN:** 422828779
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** THE GALLERIA, 2 BRIDGE AVENUE
- **STREET 2:** SUITE 241
- **CITY:** RED BANK
- **STATE:** NJ
- **ZIP:** 07701
- **BUSINESS PHONE:** 732-241-3073

**MAIL ADDRESS:**
- **STREET 1:** THE GALLERIA, 2 BRIDGE AVENUE
- **STREET 2:** SUITE 241
- **CITY:** RED BANK
- **STATE:** NJ
- **ZIP:** 07701

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** JDEV Acquisition Corp
- **DATE OF NAME CHANGE:** 20260128

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

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] 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**<sup>*</sup><br>Martin Gregory Scott<br><sub>(Last) (First) (Middle)</sub><br>C/O IONETIX CORPORATION<br>3130 SOVEREIGN DRIVE<br><sub>(Street)</sub><br>LANSING, MI 48911<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-04-09 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Ionetix Corp / DE / [ NONE ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2026-04-09 |  | A |  | 180291 | A | <sup>(1)</sup> | 180291 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Stock Option (Right to Buy) | $0.38 | 2026-04-09 |  | A |  | 18803 |  | <sup>(2)</sup> | 2029-05-16 | Common Stock | 18803 | <sup>(3)</sup> | 18803 | D |  |
| Stock Option (Right to Buy) | $0.38 | 2026-04-09 |  | A |  | 25070 |  | <sup>(2)</sup> | 2030-06-08 | Common Stock | 25070 | <sup>(3)</sup> | 25070 | D |  |
| Stock Option (Right to Buy) | $0.42 | 2026-04-09 |  | A |  | 25070 |  | <sup>(2)</sup> | 2031-03-11 | Common Stock | 25070 | <sup>(3)</sup> | 25070 | D |  |
| Stock Option (Right to Buy) | $0.98 | 2026-04-09 |  | A |  | 25070 |  | <sup>(2)</sup> | 2035-03-26 | Common Stock | 25070 | <sup>(3)</sup> | 25070 | D |  |
| Stock Option (Right to Buy) | $0.98 | 2026-04-09 |  | A |  | 50140 |  | <sup>(4)</sup> | 2035-03-26 | Common Stock | 50140 | <sup>(3)</sup> | 50140 | D |  |
| Stock Option (Right to Buy) | $0.98 | 2026-04-09 |  | A |  | 25070 |  | <sup>(5)</sup> | 2035-03-16 | Common Stock | 25070 | <sup>(3)</sup> | 25070 | D |  |

---

### Footnotes:

(1) Received in connection with the Issuer's merger (the "Merger") with Ionetix Corporation ("Legacy Ionetix") in accordance with the terms of the Agreement and Plan of Merger and Reorganization dated as of April 9, 2026 (the "Merger Agreement"), by and among the Issuer (f/k/a JDEV Acquisition Corp.), JDEV Merger Subsidiary and Legacy Ionetix. Pursuant to the terms of the Merger Agreement, each outstanding share of Legacy Ionetix common stock was entitled to receive 0.5014 shares of the Issuer's Common Stock. The Merger closed on April 9, 2026.

(2) The stock option is fully vested and exercisable.

(3) Received in connection with the Merger in exchange for options to acquire shares of Legacy Ionetix common stock adjusted by the Conversion Ratio.

(4) The stock option vests in 48 monthly installments beginning on March 27, 2026.

(5) The stock option vests in 48 monthly installments beginning on March 17, 2026.

**Signature:** /s/ Phieu Phun, as Attorney-in-Fact for Gregory S. Martin  
**Date:** 2026-04-21

### Remarks:

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.**