# EDGAR Filing Document

**Accession Number:** 0001509745
**File Stem:** 0001104659-25-114084
**Filing Date:** 2025-11
**Character Count:** 8393
**Document Hash:** 1cae645deb9abf7b35913dc3c6cc2880
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-114084.hdr.sgml**: 20251119

**ACCESSION NUMBER**: 0001104659-25-114084

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251117

**FILED AS OF DATE**: 20251119

**DATE AS OF CHANGE**: 20251119

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** ONSI DOUGLAS E
- **CENTRAL INDEX KEY:** 0001270185

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-37990
- **FILM NUMBER:** 251499364

**MAIL ADDRESS:**
- **STREET 1:** C/O TOLERRX INC
- **STREET 2:** 300 TECHNOLOGY SQUARE
- **CITY:** CAMBRIDGE
- **STATE:** MA
- **ZIP:** 02139
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CYPHERPUNK TECHNOLOGIES INC.
- **CENTRAL INDEX KEY:** 0001509745
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 274412575
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 47 THORNDIKE STREET
- **STREET 2:** SUITE B1-1
- **CITY:** CAMBRIDGE
- **STATE:** MA
- **ZIP:** 02142
- **BUSINESS PHONE:** 617 252 4343

**MAIL ADDRESS:**
- **STREET 1:** 47 THORNDIKE STREET
- **STREET 2:** SUITE B1-1
- **CITY:** CAMBRIDGE
- **STATE:** MA
- **ZIP:** 02142

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** LEAP THERAPEUTICS, INC.
- **DATE OF NAME CHANGE:** 20160818

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Dekkun Corp
- **DATE OF NAME CHANGE:** 20110107

### 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>ONSI DOUGLAS E<br><sub>(Last) (First) (Middle)</sub><br>C/O CYPHERPUNK TECHNOLOGIES INC.<br>47 THORNDIKE STREET SUITE B1-1<br><sub>(Street)</sub><br>CAMBRIDGE, MA 02141<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-11-17 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_CEO,CFO,Pres.,GC,Treas.&Sec._ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>CYPHERPUNK TECHNOLOGIES INC. [ CYPH ] | **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 | 2025-11-17 |  | S |  | 261840<sup>(1)</sup> | D | 3.14<sup>(1)</sup> | 416616<sup>(1)</sup> | I | See footnotes<sup>(1)(2)(4)</sup> |
| Common Stock | 2025-11-17 |  | S |  | 414479<sup>(2)(3)</sup> | D | 3.14<sup>(2)</sup> | 2136<sup>(2)(3)</sup> | I | See footnotes<sup>(2)(3)(4)</sup> |
| Common Stock |  |  |  |  |  |  |  | 106146 | 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 |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) On November 17, 2025, HCV VIII Liquidating Trust ("HCV Liquidating Trust") sold 261,840 shares of the Issuer's common stock at a price of $3.14 per share as a part of a liquidating distribution in connection with the wind up and liquidation of the entity. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.40 to $3.40. The reporting person undertakes to provide to the Issuer, any security holders of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the range set forth in this Form 4.

(2) On November 17, 2025, HealthCare Ventures IX, L.P. ("HCV IX") sold 414,479 shares of the Issuer's common stock at a price of $3.14 per share as a part of a liquidating distribution in connection with the wind up and liquidation of the entity. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.40 to $3.40. The reporting person undertakes to provide to the Issuer, any security holders of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the range set forth in this Form 4.

(3) Reflects a de minimis adjustment of one (1) share due to rounding.

(4) The reporting person is a managing member of Nine Capital Partners and may be deemed to have beneficial ownership of such 2,136 shares of common stock held by Nine Capital Partners. The reporting person is a Managing Director of HCPIX LLC, which is the General Partner of HealthCare Partners IX, which is the General Partner of HCV IX and may be deemed to have had beneficial ownership of the 414,479 shares of Common Stock sold by HCV IX. The reporting person is a beneficiary of the HCV Liquidating Trust and may be deemed to have had beneficial ownership of the 261,840 shares of Common Stock sold by the HCV Liquidating Trust. The reporting person disclaims beneficial ownership of such shares of common stock held by Nine Capital Partners, and sold by each of HCV IX and the HCV Liquidating Trust, except to the extent of the reporting person's proportionate pecuniary interest therein.

**Signature:** /s/ Douglas E. Onsi  
**Date:** 2025-11-19

### 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.**