Solana Co

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549​

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of

the Securities Exchange Act of 1934 (Amendment No. )

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

Check the appropriate box:

☐ Preliminary Proxy Statement

☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

☒ Definitive Proxy Statement

☐ Definitive Additional Materials

☐ Soliciting Material under §240.14a-12

SOLANA COMPANY

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(Name of Registrant as Specified In Its Charter)​

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(Name of Person(s) Filing Proxy Statement, if other than the Registrant)​

Payment of Filing Fee (Check all boxes that apply):

☒ No fee required.

☐ Fee paid previously with preliminary materials.

☐ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

To our Stockholders:

A special meeting of stockholders will be held on October 30, 2025, at 10:00 a.m. Eastern Time (the “Special Meeting”) to conduct the following items of business:

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Proposal 2: To approve, in accordance with Nasdaq Listing Rule 5635(a), the issuance of shares of our common stock upon the exercise of the Strategic Advisor Warrants issued to Pantera Capital Management LP and Summer Wisdom Holdings Limited;

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Proposal 3: To approve, in accordance with Nasdaq Listing Rule 5635(a), the issuance of shares of our common stock upon the exercise of the Cryptocurrency Pre-Funded Warrants and Cryptocurrency Stapled Warrants issued in connection with our acceptance of Solana (SOL) cryptocurrency as consideration in our private placement offering;

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Board unanimously recommends that you vote FOR the election of each director nominee and FOR Proposals 2, 3, 4 and 5.

The special meeting will be a completely virtual meeting conducted via live webcast. You will be able to attend the Special Meeting online, vote electronically and submit your questions during the Special Meeting by visiting www.virtualshareholdermeeting.com/HSDT2025SM2 and entering your 16-digit control number. You will not be able to attend the Special Meeting in person.

Even if you are planning on attending the Special Meeting online, please promptly submit your proxy vote via the Internet, by telephone, or by completing, dating, signing and returning the enclosed proxy card or voting instruction card, so your shares will be represented at the Special Meeting. Instructions on voting your shares are in the proxy materials you received for the Special Meeting.

Details regarding admission to the virtual Special Meeting and the business to be conducted at the Special Meeting are more fully described in the accompanying Notice of Special Meeting of Stockholders and proxy statement. You are entitled to vote at our Special Meeting and any adjournments or postponements thereof only if you were a stockholder as of September 26, 2025.

Your vote is important. Whether or not you plan to attend the Special Meeting online, please submit your proxy vote as soon as possible so that your shares can be voted at our Special Meeting in accordance with your instructions. If you attend the meeting, you may revoke your proxy in accordance with the procedures set forth in the accompanying proxy statement and vote in person.

Thank you for your continued support of Solana Company (f/k/a Helius Medical Technologies).

Sincerely,

/s/ Dane C. Andreeff

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President and Chief Executive Officer

SOLANA COMPANY (F/K/A HELIUS

MEDICAL TECHNOLOGIES, INC.)

642 Newtown Yardley Road, Suite 100

Newtown, Pennsylvania 18940

NOTICE OF SPECIAL MEETING OF STOCKHOLDERS

TO BE HELD ON October 30, 2025

Notice is hereby given that a special meeting of stockholders of Solana Company (f/k/a Helius Medical Technologies, Inc.) (the “Company,” “we” or “us”) will be held on October 30, 2025, at 10:00 a.m. Eastern Time (the “Special Meeting”), as a virtual meeting at www.virtualshareholdermeeting.com/HSDT2025SM2. At the special meeting of stockholders or any adjournment or postponement thereof, you will be asked to consider and vote upon the following proposals:

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Proposal 2: To approve, in accordance with Nasdaq Listing Rule 5635(a), the issuance of shares of our common stock upon the exercise of the Strategic Advisor Warrants issued to Pantera Capital Management LP and Summer Wisdom Holdings Limited;

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Proposal 3: To approve, in accordance with Nasdaq Listing Rule 5635(a), the issuance of shares of our common stock upon the exercise of the Cryptocurrency Pre-Funded Warrants and Cryptocurrency Stapled Warrants issued in connection with our acceptance of Solana (SOL) cryptocurrency as consideration in our private placement offering;

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Through the website above, you will be able to attend the Special Meeting online, vote electronically, and submit your questions during the Special Meeting. Your attention is directed to the accompanying proxy statement which is set forth on the following pages, where details regarding how to attend the Special Meeting online and the foregoing items of business are more fully described. The Board of Directors has fixed the close of business on September 26, 2025 as the record date for the determination of stockholders entitled to notice of, and to vote at, the Special Meeting. Only stockholders of record at the close of business on September 26, 2025 are entitled to receive notice of, and to vote at, the Special Meeting and any adjournment thereof.

The Board unanimously recommends that you vote FOR the election of the director nominee and FOR Proposals 2, 3, 4 and 5.

Your vote is extremely important, regardless of the number of shares of Class A common stock you own. Whether or not you plan to virtually attend the Special Meeting, you are respectfully requested by the Board of Directors to promptly submit your proxy by telephone or over the Internet in accordance with the instructions on the proxy card or voting instruction card or sign, date and return the proxy card or voting instruction card. If you received this notice and the accompanying proxy statement in the mail, a return envelope is enclosed for your convenience. This will not prevent you from voting at the Special Meeting since you may revoke your proxy at any time prior to the Special Meeting or vote electronically at the Special Meeting, but submitting your proxy will help to ensure the presence of a quorum at the Special Meeting and avoid added proxy solicitation costs.

By Order of the Board of Directors,

/s/ Jeffrey S. Mathiesen

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Chief Financial Officer, Treasurer and Secretary

Newtown, Pennsylvania

Important Notice Regarding the Availability of Proxy Materials for the

Solana Company Special Meeting of Stockholders to be Held on October 30, 2025:

The Notice of Special Meeting of Stockholders, accompanying proxy statement and annual report to

stockholders are available at www.proxyvote.com.