Company: HSDTW
Filing Date: 2025-06-06
Form Type: 424B4
Source: 0001104659-25-056970
Chunk: 61

Company: Solana Co
Filing Date: 2025-06-06
Form: 424B4
Chunk 61
---
 all of the documents incorporated by reference in this prospectus including exhibits to these documents. You should direct any requests for documents to Helius Medical Technologies, Inc., Attn: Chief Financial Officer, 642 Newtown Yardley Road, Suite 100, Newtown, PA 18940, or via e-mail at inquiry@heliusmedical.com. Our phone number is (215) 944-6104. You also may access these filings on our website at http://www.heliusmedical.com. We do not incorporate the information on our website into this prospectus and you should not consider any information on, or that can be accessed through, our website as part of this prospectus.

<div align='center'>39</div>

TABLE OF CONTENTS

#### ​

#### ​

#### 2,627,050 Shares of Common Stock

#### or
<div align='center'>**Pre-Funded Warrants to Purchase up to 141,550 Shares of Common Stock,

Common Warrants to Purchase up to 2,768,600 Shares of Common Stock**</div>

#### and
<div align='center'>**Placement Agent Warrants to Purchase up to 138,430 Shares of Common Stock

Up to 45,122,565 Shares of Common Stock Issuable Upon Exercise of the Pre-Funded Warrants,**</div>

#### Common Warrants and Placement Agent Warrants

### PROSPECTUS

#### June 4, 2025

#### Maxim Group, LLC
#### ​

#### ​