Company: HSDTW
Filing Date: 2025-11-18
Form Type: POSASR
Source: 0001104659-25-113339
Chunk: 1

Company: Solana Co
Filing Date: 2025-11-18
Form: POSASR
Chunk 1
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 Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box. ☐ If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box. ☒ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

| ​ | Large accelerated filer 
 ☐                       
 ​                       | ​ | ​ | Accelerated filer         
 ☐                         
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| ​ | Non-accelerated filer   
 ☒                       
 ​                       | ​ | ​ | Smaller reporting company 
 ☒                         
 ​                         | ​ |
| ​ | ​                       | ​ | ​ | Emerging growth company   
 ☐                         
 ​                         | ​ |

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of Securities Act. ☐

TABLE OF CONTENTS

### EXPLANATORY NOTE
This registration statement is a post-effective amendment to the registration statement on Form S-3 (File No. 333-290950) of Solana Company (f/k/a Helius Medical Technologies, Inc) (the “Company,” “we,” “us,” “our”) filed with the Securities and Exchange Commission (the “SEC”) on October 20, 2025, as supplemented by that certain Prospectus Supplement, filed with the SEC on November 17, 2025 (together, the “Registration Statement”). The Company previously registered 155,276,497 shares of common stock pursuant to the Registration Statement for resale by the selling stockholders named herein. This post-effective amendment to the Registration Statement is being filed for the purpose of registering additional shares of common stock for resale by the selling stockholders pursuant to Rule 413(b) under the Securities Act of 1933, as amended, for an aggregate of 155,646,