Solana Co 8-K, filed Oct 16, 2025
Solana Co (HSDT)
About this 8-K
Solana Co filed this 8-K on October 16, 2025, reporting on events of October 15, 2025.
Items reported
- Item 4.01: Change of auditor
- Item 9.01: Financial statements and exhibits
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
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CURRENT REPORT
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Item 4.01Changes in Registrant’s Certifying Accountant.
(a) Resignation of Previous Independent Registered Public Accounting Firm
On October 15, 2025, the Audit Committee (the “Committee”) of the Board of Directors of Solana Corporation (formerly known as Helius Medical Technologies, Inc.) (the “Company”) received the resignation of Baker Tilly US, LLP (“Baker Tilly”) as the Company’s independent registered public accounting firm, effective immediately. The Committee accepted Baker Tilly’s resignation.
The reports of Baker Tilly on the Company’s consolidated financial statements for each of the two most recent fiscal years ended December 31, 2024 and 2023 did not contain an adverse opinion or disclaimer of opinion, and were not qualified or modified as to uncertainty, audit scope, or accounting principles, except that such reports contained an explanatory paragraph expressing substantial doubt as to the Company’s ability to continue as a going concern.
During the Company’s two most recent fiscal years ended December 31, 2024 and 2023 and the subsequent interim period through October 15, 2025, there were (a) no “disagreements” (as that term is described in Item 304(a)(1)(iv) of Regulation S-K promulgated under the Securities Exchange Act of 1934, as amended (“Regulation S-K”) and the related instructions) with Baker Tilly on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedure, which disagreements, if not resolved to the satisfaction of Baker Tilly, would have caused it to make reference to the subject matter of the disagreements in connection with its reports and (b) no “reportable events,” as defined in Item 304(a)(1)(v) of Regulation S-K and the related instructions.
The Company provided Baker Tilly with a copy of the foregoing disclosures and requested that Baker Tilly furnish a letter addressed to the Securities and Exchange Commission stating whether or not it agrees with the statements made herein, as specified by Item 304(a)(3) of Regulation S-K. A copy of Baker Tilly’s letter, dated October 16, 2025, is filed as Exhibit 16.1 to this Current Report on Form 8-K.
(b) Engagement of New Independent Registered Public Accounting Firm
On October 15, 2025, the Committee approved the appointment of CBIZ CPAs P.C. (“CBIZ CPAs”) as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2025.
During the Company’s two most recent fiscal years ended December 31, 2024 and 2023 and the subsequent interim period through October 15, 2025, neither the Company nor anyone on its behalf consulted with CBIZ CPAs regarding: (i) the application of accounting principles to a specific transaction, either completed or proposed, or the type of audit opinion that might be rendered on the Company’s consolidated financial statements, and neither a written report or oral advice was provided to the Company that CBIZ CPAs concluded was an important factor considered by the Company in reaching a decision as to any accounting, auditing, or financial reporting issue, (ii) any matter that was the subject of a “disagreement” within the meaning of Item 304(a)(1)(iv) of Regulation S-K and the related instructions, or (iii) any reportable event within the meaning of Item 304(a)(1)(v) of Regulation S-K and the related instructions.
Item 9.01 | Financial Statements and Exhibits. |
(d) Exhibits
Exhibit No. |
| Description |
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16.1 | | Letter from Baker Tilly US, LLP to the Securities and Exchange Commission, dated October 16, 2025. |
104 | | Cover Page Interactive Data File (embedded within Inline XBRL document). |
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SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
| | SOLANA COMPANY. | |
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Dated: October 16, 2025 | | By: | /s/ Jeffrey S. Mathiesen |
| | | Jeffrey S. Mathiesen |
| | | Chief Financial Officer, Treasurer and Secretary |
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Exhibit 16.1
October 16, 2025
Securities and Exchange Commission
100 F Street, NE
Washington, DC 20549
Dear Ladies and Gentlemen:
We are the former independent registered public accounting firm for Solana Company (formerly known as Helius Medical Technologies, Inc.) (the “Company”). We have read the Company’s disclosure set forth in Item 4.01 “Changes in Registrant’s Certifying Accountant” of the Company’s Current Report on Form 8-K dated October 16, 2025 (the “Current Report”) and are in agreement with the disclosure in the Current Report, insofar as it pertains to our firm.
Sincerely,
Baker Tilly US, LLP
/s/ Baker Tilly US, LLP