# EDGAR Filing Document

**Accession Number:** 0001983637
**File Stem:** 0001213900-26-044849
**Filing Date:** 2026-4
**Character Count:** 16681
**Document Hash:** c5670a4fb304f806d8fff04ac5729fa6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-26-044849.hdr.sgml**: 20260416

**ACCESSION NUMBER**: 0001213900-26-044849

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260409

**FILED AS OF DATE**: 20260416

**DATE AS OF CHANGE**: 20260416

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Ospraie Management, LLC
- **CENTRAL INDEX KEY:** 0001326533

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-56821
- **FILM NUMBER:** 26869163

**BUSINESS ADDRESS:**
- **STREET 1:** 437 MADISON AVENUE, 28TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
- **BUSINESS PHONE:** (212) 602-5057

**MAIL ADDRESS:**
- **STREET 1:** 437 MADISON AVENUE, 28TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Anderson Dwight
- **CENTRAL INDEX KEY:** 0001392202

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-56821
- **FILM NUMBER:** 26869160

**MAIL ADDRESS:**
- **STREET 1:** C/O OSPRAIE MANAGEMENT, LLC
- **STREET 2:** 320 PARK AVENUE, 27TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Ospraie Management, Inc.
- **CENTRAL INDEX KEY:** 0001392203

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-56821
- **FILM NUMBER:** 26869161

**BUSINESS ADDRESS:**
- **STREET 1:** 320 PARK AVENUE
- **STREET 2:** 27TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
- **BUSINESS PHONE:** (212) 602-5000

**MAIL ADDRESS:**
- **STREET 1:** 320 PARK AVENUE
- **STREET 2:** 27TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Ospraie Real Assets GP LLC
- **CENTRAL INDEX KEY:** 0002126039

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-56821
- **FILM NUMBER:** 26869164

**BUSINESS ADDRESS:**
- **STREET 1:** 411 THEODORE FREMD AVE
- **STREET 2:** SUITE 240
- **CITY:** RYE
- **STATE:** NY
- **ZIP:** 10580
- **BUSINESS PHONE:** 212-602-5000

**MAIL ADDRESS:**
- **STREET 1:** 411 THEODORE FREMD AVE
- **STREET 2:** SUITE 240
- **CITY:** RYE
- **STATE:** NY
- **ZIP:** 10580
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Ospraie Real Assets Fund LP
- **CENTRAL INDEX KEY:** 0001983637

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** DE

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-56821
- **FILM NUMBER:** 26869165

**BUSINESS ADDRESS:**
- **STREET 1:** C/O OSPRAIE REAL ASSETS GP LLC
- **STREET 2:** 411 THEODORE FREMD AVE, SUITE 240
- **CITY:** RYE
- **STATE:** NY
- **ZIP:** 10580
- **BUSINESS PHONE:** (212) 602-5000

**MAIL ADDRESS:**
- **STREET 1:** C/O OSPRAIE REAL ASSETS GP LLC
- **STREET 2:** 411 THEODORE FREMD AVE, SUITE 240
- **CITY:** RYE
- **STATE:** NY
- **ZIP:** 10580
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Ospraie Holding I, L.P.
- **CENTRAL INDEX KEY:** 0001392205

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-56821
- **FILM NUMBER:** 26869162

**BUSINESS ADDRESS:**
- **STREET 1:** 320 PARK AVENUE
- **STREET 2:** 27TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
- **BUSINESS PHONE:** (212) 602-5000

**MAIL ADDRESS:**
- **STREET 1:** 320 PARK AVENUE
- **STREET 2:** 27TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
**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>Ospraie Real Assets Fund LP<br><sub>(Last) (First) (Middle)</sub><br>C/O OSPRAIE MANAGEMENT, LLC<br>411 THEODORE FREMD AVENUE, SUITE 240<br><sub>(Street)</sub><br>RYE, NY 10580<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>[ ] Director [X] 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>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Ospraie Real Assets GP LLC<br><sub>(Last) (First) (Middle)</sub><br>C/O OSPRAIE MANAGEMENT, LLC<br>411 THEODORE FREMD AVENUE, SUITE 240<br><sub>(Street)</sub><br>RYE, NY 10580<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>[ ] Director [X] 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>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Ospraie Management, LLC<br><sub>(Last) (First) (Middle)</sub><br>411 THEODORE FREMD AVENUE, SUITE 240<br><sub>(Street)</sub><br>RYE, NY 10580<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>[ ] Director [X] 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>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Ospraie Holding I, L.P.<br><sub>(Last) (First) (Middle)</sub><br>C/O OSPRAIE MANAGEMENT, LLC<br>411 THEODORE FREMD AVENUE, SUITE 240<br><sub>(Street)</sub><br>RYE, NY 10580<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>[ ] Director [X] 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>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Ospraie Management, Inc.<br><sub>(Last) (First) (Middle)</sub><br>C/O OSPRAIE MANAGEMENT, LLC<br>411 THEODORE FREMD AVENUE, SUITE 240<br><sub>(Street)</sub><br>RYE, NY 10580<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>[ ] Director [X] 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>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Anderson Dwight<br><sub>(Last) (First) (Middle)</sub><br>C/O OSPRAIE MANAGEMENT, LLC<br>411 THEODORE FREMD AVENUE, SUITE 240<br><sub>(Street)</sub><br>RYE, NY 10580<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>[ ] Director [X] 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>[ ] Form filed by One Reporting Person<br>[X] 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, par value $0.0001 per share | 2026-04-09 |  | J |  | 18206346 | A | <sup>(1)</sup> | 18206346 | D<sup>(2)(3)</sup> |  |

---

## 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 |
| Warrant | $2.79 | 2026-04-09 |  | J |  | 1316175 |  | 2026-04-09 | 2028-12-14 | Common Stock | 1316175 | <sup>(4)</sup> | 1316175 | D<sup>(2)(3)</sup> |  |
| Warrant | $2.79 | 2026-04-09 |  | J |  | 537752 |  | 2026-04-09 | 2030-04-27 | Common Stock | 537752 | <sup>(5)</sup> | 537752 | D<sup>(2)(3)</sup> |  |
| Warrant | $0.02 | 2026-04-09 |  | J |  | 3230558 |  | 2026-04-09 | 2036-04-09 | Common Stock | 3230558 | <sup>(6)</sup> | 3230558 | D<sup>(2)(3)</sup> |  |

---

### Footnotes:

(1) Received in exchange for 36,311,022 shares of the common stock of Ionetix Corporation, a privately held Delaware corporation ("Target"), in connection with the merger (such transaction, the "Merger") of JDEV Merger Subsidiary Corp. ("Merger Sub"), a wholly-owned subsidiary of JDEV Acquisition Corp. (such entity, which changed its name to Ionetix Corporation in connection with the Merger, the "Issuer"), with and into Target, pursuant to that certain Agreement and Plan of Merger and Reorganization dated as of April 9, 2026 by and among the Issuer, Target and Merger Sub.

(2) Ospraie Management, LLC ("OM LLC") is the investment manager of Ospraie Real Assets Fund LP ("ORA Fund") and has been delegated voting and investment power and thus beneficial ownership of the securities of the Issuer held by ORA Fund (such securities, the "Issuer Securities"). Ospraie Holding I, LP ("Ospraie Holding") may be deemed to beneficially own the Issuer Securities as the managing member of OM LLC.

(3) Ospraie Management, Inc. ("OM Inc.") may be deemed to beneficially own the Issuer Securities as the general partner of Ospraie Holding. Ospraie Real Assets GP LLC ("Ospraie GP") may be deemed to beneficially own the Issuer Securities as the general partner of ORA Fund. Dwight Anderson may be deemed to beneficially own the Issuer Securities as the managing member of Ospraie GP and as the sole owner of OM Inc. Each reporting person disclaims beneficial ownership of the Issuer Securities except to the extent of his or its pecuniary interest therein, if any.

(4) Received in the Merger in exchange for a warrant to purchase 2,625,000 shares of Target common stock at an exercise price of $1.40 per share.

(5) Received in the Merger in exchange for a warrant to purchase 1,072,500 shares of Target common stock at an exercise price of $1.40 per share.

(6) Received in the Merger in exchange for a warrant to purchase 6,443,076 shares of Target common stock at an exercise price of $0.01 per share. This warrant contains a provision that restricts the ability of the holder to exercise the warrant to the extent that, after giving effect to the issuance of shares of the common stock of the Issuer upon such exercise, the holder would beneficially own in excess of 19.9% of the number of outstanding shares of the Issuer's common stock.

**Signature:** Ospraie Real Assets Fund LP By: Ospraie Real Assets GP LLC, its General Partner By: /s/ Dwight Anderson Managing Member  
**Date:** 2026-04-16

**Signature:** Ospraie Real Assets GP LLC By: Dwight Anderson Managing Member  
**Date:** 2026-04-16

**Signature:** Ospraie Management, LLC By: Ospraie Holding I, L.P., its Managing Member By: Ospraie Management, Inc., its General Partner By: /s/ Dwight Anderson Sole Owner  
**Date:** 2026-04-16

**Signature:** Ospraie Holding I, L.P. By: Ospraie Management, Inc., its General Partner By: /s/ Dwight Anderson Sole Owner  
**Date:** 2026-04-16

**Signature:** Ospraie Management, Inc. By: /s/ Dwight Anderson Sole Owner  
**Date:** 2026-04-16

**Signature:** /s/ Dwight Anderson  
**Date:** 2026-04-16

### 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.**