6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of March 2026

Commission file number: 001-42389

BIOHARVEST SCIENCES INC.

(Exact name of Registrant as specified in its charter)

Not applicable

(Translation of Registrant’s name into English)

1140-625 Howe Street, Vancouver, British Columbia V6C 2T6, Canada

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

☐ Form 20-F ☒ Form 40-F

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ☐

SUBMITTED HEREWITH Exhibits:

SIGNATURES 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, thereunto duly authorized.

News Release dated March 17, 2026

BioHarvest Sciences to Report Fourth Quarter and Full Year 2025 Financial Results on March 31, 2026

Vancouver, British Columbia and Rehovot, Israel – March 17, 2026 – BioHarvest Sciences Inc. (“BioHarvest” or the “Company”), (NASDAQ: BHST) (FSE: 8MV0), a company pioneering its proprietary Botanical Synthesis™ platform, today announced that it will report its fourth quarter and full year 2025 financial results after market close on Tuesday, March 31, 2026. The Company will host a conference call and webcast at 4:30 p.m. Eastern Daylight Time to discuss the results and provide an update on business operations.

Fourth Quarter and Full Year 2025 Earnings Call

Date:Tuesday, March 31, 2026

Time:4:30 PM Eastern Time

Webcast link:https://events.q4inc.com/attendee/512060117

The Earnings call webcast will be broadcast live, and attendees are encouraged to register via the webcast link at least 10 minutes prior to the call to ensure timely participation.

The webcast recording will be available for replay on the Company’s website within the Investor Relations/Events & Presentations section.

About BioHarvest Sciences Inc.

BioHarvest (NASDAQ: BHST) (FSE: 8MV) is a leader in Botanical Synthesis, leveraging its patented technology platform to grow plant-based compounds, without the need to grow the underlying plant. BioHarvest is leveraging its botanical synthesis technology to develop the next generation of science-based and clinically proven therapeutic solutions within two major business verticals; as a contract development and manufacturing organization (CDMO) on behalf of customers seeking novel plant-based compounds, and as a creator of proprietary nutraceutical health and wellness products, which includes dietary supplements. To learn more, please visit www.bioharvest.com.

Forward-Looking Statements

Information set forth in this news release might include forward-looking statements that are based on management's current estimates, beliefs, intentions, and expectations, and are subject to a number of risks and uncertainties that could cause actual results to differ materially from those described in the forward-looking statements. All forward-looking statements are inherently uncertain and actual results may be affected by a number of material factors beyond our control. Readers should not place undue reliance on forward-looking statements. BHST does not intend to update forward-looking statement disclosures other than through our regular management discussion and analysis disclosures. Forward-looking statements include those set forth in the Risk Factors section of the Company’s Securities and Exchange Commission (SEC)’s filings which can be found within the Investor Relations section on the Company’s website, or on the SEC’s website at http://www.sec.gov.

BioHarvest Corporate Contact:

Dave Ryan

(604) 622-1186

info@bioharvest.com

Investor Relations Contact:

Chuck Padala, Managing Director

LifeSci Advisors

chuck@lifesciadvisors.com