# EDGAR Filing Document

**Accession Number:** 0002079712
**File Stem:** 0001104659-25-093466
**Filing Date:** 2025-9
**Character Count:** 19476
**Document Hash:** 1680e2ec5573d88463589c7fc9622f33
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-093466.hdr.sgml**: 20250925

**ACCESSION NUMBER**: 0001104659-25-093466

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20250925

**DATE AS OF CHANGE**: 20250925

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** HELIUS MEDICAL TECHNOLOGIES, INC.
- **CENTRAL INDEX KEY:** 0001610853
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTROMEDICAL & ELECTROTHERAPEUTIC APPARATUS [3845]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 364787690
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-89397
- **FILM NUMBER:** 251345064

**BUSINESS ADDRESS:**
- **STREET 1:** 642 NEWTOWN YARDLEY ROAD
- **CITY:** NEWTOWN
- **STATE:** PA
- **ZIP:** 18940
- **BUSINESS PHONE:** 215-944-6100

**MAIL ADDRESS:**
- **STREET 1:** 642 NEWTOWN YARDLEY ROAD
- **CITY:** NEWTOWN
- **STATE:** PA
- **ZIP:** 18940

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** HELIUS MEDICAL TECHNOLOGIES, INC
- **DATE OF NAME CHANGE:** 20180517

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** HELIUS MEDICAL TECHNOLOGIES, INC.
- **DATE OF NAME CHANGE:** 20140613
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Morehead Daniel Wayne
- **CENTRAL INDEX KEY:** 0002079712

**ORGANIZATION NAME:**

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

**MAIL ADDRESS:**
- **STREET 1:** 5 BRYANT PARK
- **STREET 2:** 34TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10018

## Ex-3

**Exhibit 3**

**<u>Joint Filing Agreement</u>**

In accordance with Rule 13d-1(k) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to the Class A Common Stock, par value $0.001 per share, of Helius Medical Technologies, Inc., a Delaware corporation, and that this Joint Filing Agreement may be included as an Exhibit to such joint filing. This Joint Filing Agreement may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument.

[*Signature page to follow*.]

IN WITNESS WHEREOF, the undersigned hereby execute this Joint Filing Agreement as of September 25, 2025.

---

| |
|:---|
| /s/ Daniel W. Morehead |
| Daniel W. Morehead |

---

---

| | |
|:---|:---|
| **PANTERA CAPITAL PARTNERS LP** | **PANTERA CAPITAL PARTNERS LP** |
| By: | /s/ Matthew Gorham |
|  | Name: Matthew Gorham |
|  | Title: Authorized Signatory |
| <br> **PANTERA BLOCKCHAIN FUND LP** | <br> **PANTERA BLOCKCHAIN FUND LP** |
| By: | /s/ Matthew Gorham |
|  | Name: Matthew Gorham<br> Title: Authorized Signatory |
| <br> **PANTERA DAT OPPORTUNITIES MASTER FUND SP** | <br> **PANTERA DAT OPPORTUNITIES MASTER FUND SP** |
| By: | /s/ Matthew Gorham |
|  | Name: Matthew Gorham |
|  | Title: Authorized Signatory |
| <br> **PANTERA LIQUID TOKEN FUND LP** | <br> **PANTERA LIQUID TOKEN FUND LP** |
| By: | /s/ Matthew Gorham |
|  | Name: Matthew Gorham |
|  | Title: Authorized Signatory |

---

[*Signature Page to Joint Filing Agreement*]

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

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**HELIUS MEDICAL TECHNOLOGIES, INC.**

*(Name of Issuer)*

**Class A Common Stock, $0.001 par value per share**

*(Title of Class of Securities)*

**42328V876**

*(CUSIP Number)*

**Daniel W. Morehead**<br>c/o Pantera Capital Management LP<br>600 Montgomery St, 45th Floor<br>San Francisco CA 94111<br>650-854-7000

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

**09/18/2025**

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

| **CUSIP No.** | **42328V876** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Morehead Daniel Wayne** | Name of reporting person<br>**Morehead Daniel Wayne** | |
| 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>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 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>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**10000.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**3887319.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**10000.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**3887319.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**3897319.00** | Aggregate amount beneficially owned by each reporting person<br>**3897319.00** | |
| 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>**9.67%** | Percent of class represented by amount in Row (11)<br>**9.67%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** Based upon 40,295,612 shares of Common Stock issued and outstanding as of September 24, 2025

| **CUSIP No.** | **42328V876** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Pantera Capital Partners LP** | Name of reporting person<br>**Pantera Capital Partners LP** | |
| 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>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 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>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**3887319.00** |
| 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>**3887319.00** |
| 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>**3887319.00** | Aggregate amount beneficially owned by each reporting person<br>**3887319.00** | |
| 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>**9.65%** | Percent of class represented by amount in Row (11)<br>**9.65%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IA** | Type of Reporting Person (See Instructions)<br>**IA** | |

---

**Comment for Reporting Person:** Based upon 40,295,612 shares of Common Stock issued and outstanding as of September 24, 2025

| **CUSIP No.** | **42328V876** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Pantera Blockchain Fund LP** | Name of reporting person<br>**Pantera Blockchain Fund LP** | |
| 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>**PF** | Source of funds (See Instructions)<br>**PF** | |
| 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>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**3160680.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**3160680.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**3160680.00** | Aggregate amount beneficially owned by each reporting person<br>**3160680.00** | |
| 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>**7.84%** | Percent of class represented by amount in Row (11)<br>**7.84%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IC** | Type of Reporting Person (See Instructions)<br>**IC** | |

---

**Comment for Reporting Person:** Based upon 40,295,612 shares of Common Stock issued and outstanding as of September 24, 2025

| **CUSIP No.** | **42328V876** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Pantera DAT Opportunities Master Fund SP** | Name of reporting person<br>**Pantera DAT Opportunities Master Fund SP** | |
| 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>**PF** | Source of funds (See Instructions)<br>**PF** | |
| 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>**CAYMAN ISLANDS** | Citizenship or place of organization<br>**CAYMAN ISLANDS** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**581311.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**581311.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**581311.00** | Aggregate amount beneficially owned by each reporting person<br>**581311.00** | |
| 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>**1.44%** | Percent of class represented by amount in Row (11)<br>**1.44%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IC** | Type of Reporting Person (See Instructions)<br>**IC** | |

---

**Comment for Reporting Person:** Based upon 40,295,612 shares of Common Stock issued and outstanding as of September 24,   2025

| **CUSIP No.** | **42328V876** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Pantera Liquid Token Fund LP** | Name of reporting person<br>**Pantera Liquid Token Fund LP** | |
| 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>**PF** | Source of funds (See Instructions)<br>**PF** | |
| 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>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**145328.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**145328.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**145328.00** | Aggregate amount beneficially owned by each reporting person<br>**145328.00** | |
| 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>**0.36%** | Percent of class represented by amount in Row (11)<br>**0.36%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IC** | Type of Reporting Person (See Instructions)<br>**IC** | |

---

**Comment for Reporting Person:** Based upon 40,295,612 shares of Common Stock issued and outstanding as of September 24,   2025.

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Class A Common Stock, $0.001 par value per share

**(b) Name of Issuer:**
HELIUS MEDICAL TECHNOLOGIES, INC.

**(c) Address of Issuer's Principal Executive Offices:**
642 Newtown Yardley Road, Suite 100, Newtown, PA, 18940

**Item 4. Purpose of Transaction**

The information set forth or incorporated in Item 3 and Item 6 is hereby incorporated by referencein its entirety into this Item 4.

The Funds acquired the Acquired Shares as part of the Transaction described in Item 3 above. Mr.
Morehead acquired the Morehead Securities in his individual capacity as part of the Morehead
Purchase described in Item 3 above.

The aggregate gross proceeds from the Transaction described in Item 3 were over $500 million.
The net proceeds from the Transaction are intended to be used by the Issuer to purchase SOL, thenative cryptocurrency of the Solana blockchain, and for working capital and general corporatepurposes.

Other than as described in this Item 4, none of the Reporting Persons presently has any additionalplans or proposals that relate to or that would result in any of the transactions or other mattersspecified in clauses (a) through (j) of Item 4 of this Schedule 13D, but depending on the factorsdiscussed herein, the Reporting Persons may change their purpose or formulate different plans orproposals with respect their investment in the Issuer at any time.

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

**(a)**
On the date of this Schedule 13D, Pantera, as investment manager of the Funds, and Mr. Morehead,as the Founder, Managing Partner and control person of Pantera, may be deemed to indirectlybeneficially own, and have sole voting and dispositive power over, an aggregate of 3,897,319 sharesof Common Stock, which is approximately 9.67% of the Common Stock issued and outstanding,comprising of:

(1) 3,160,680 shares of Common Stock directly held by BlockChain Fund (or 7.84% of the Common
Stock issued and outstanding);

(2) 581,311 shares of Common Stock directly held by DAT Opportunities Fund (or 1.44% of the
Common Stock issued and outstanding);

(3) 145,328 shares of Common Stock directly held by Liquid Token Fund (or 0.36% of the Common
Stock issued and outstanding); and

(4) 10,000 shares of Common Stock directly held by Mr. Morehead (or 0.02% of the Common Stockissued and outstanding).

The calculation of the percentage of Common Shares beneficially owned by Mr. Morehead and
Pantera are based on the 40,295,612 Common Shares issued and outstanding as of September
24, 2025, as confirmed by the Issuer's transfer agent on such date.

**(b)**
The information contained on the cover pages to this Schedule 13D is incorporated by reference   into this Item 5(b).

**(c)**
Except the information set forth in this Schedule 13D, no transactions in any of the Common Stock   have been effected by the Reporting Persons during the past sixty days.

**Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.**

The information set forth or incorporated in Item 3, Item 4 and Item 5 is hereby incorporated byreference in its entirety into this Item 6.

The foregoing description of the Subscription Agreement does not purport to be complete and isqualified in its entirety by the full text of the Subscription Agreement that is attached hereto as Exhibit
1 and is incorporated by reference herein.

### 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:** Morehead Daniel Wayne

**Signature:** /s/ Daniel W. Morehead

**Name/Title:** Daniel W. Morehead

**Date:** 09/25/2025

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:** Pantera Capital Partners LP

**Signature:** /s/ Matthew Gorham

**Name/Title:** Matthew Gorham, Authorized Signatory

**Date:** 09/25/2025

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:** Pantera Blockchain Fund LP

**Signature:** /s/ Matthew Gorham

**Name/Title:** Matthew Gorham, Authorized Signatory

**Date:** 09/25/2025

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:** Pantera DAT Opportunities Master Fund SP

**Signature:** /s/ Matthew Gorham

**Name/Title:** Matthew Gorham, Authorized Signatory

**Date:** 09/25/2025

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:** Pantera Liquid Token Fund LP

**Signature:** /s/ Matthew Gorham

**Name/Title:** Matthew Gorham, Authorized Signatory

**Date:** 09/25/2025