6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TORULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of December 2021

Commission File No. 001-39730

VISION MARINETECHNOLOGIES INC.

(Translation of registrant’s name into English)

730 Boulevard du Curé-Boivin

Boisbriand, Québec, J7G 2A7, Canada

(Address of principal executive office)

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

Attached as Exhibit 99.1 is our press release of December 1, 2021, entitled, “Vision Marine Technologies to Present at Sidoti Virtual Investor Conference December 8-9, 2021.”

Exhibits

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.

Exhibit 99.1

Vision Marine Technologies to Present at SidotiVirtual Investor Conference

December 8-9, 2021

Montreal, Canada, December 1, 2021 – Vision Marine Technologies, Inc. (NASAQ: VMAR) (“Vision Marine” or the “Company”), today announced that Kulwant Sandher (CFO) and Bruce Nurse (Investor Relations) will present and host one-on-one meetings with investors at the Sidoti Fall Virtual Investor Conference, taking place on December 8-9, 2021.

The presentation will begin at 1 pm EST on Thursday, December 9, 2021, and can be accessed live here: https://sidoti.zoom.us/webinar/register/WN_4xo8SY8xRS2I9pYlfO49Ig.Vision Marine will also host virtual one-on-ones with investors on Wednesday and Thursday, December 8 and 9, 2021. To register for the presentation or one-on-ones, visit www.sidoti.com/events. Registration is free and you do not need to be a Sidoti client.

About Sidoti & Company

For over two decades, Sidoti & Company (http://www.sidoti.com) has been a premier provider of independent securities research focused specifically on small and microcap companies and the institutions that invest in their securities, with most of its coverage in the $100 million-$5 billion market cap range. The firm’s approach affords companies and institutional clients a combination of high-quality research, a small- and microcap-focused nationwide sales effort, broad access to corporate management teams, and extensive trading support. Sidoti serves 500+ institutional clients in North America.

About Vision Marine Technologies, Inc.

Vision Marine Technologies, Inc. (Nasdaq: VMAR), strives to be a guiding force for change and an ongoing driving factor in fighting the problems associated with waterway pollution by disrupting the traditional boating industry with electric power, in turn directly contributing to zero pollution, zero emission and a noiseless environment. Our flagship outboard powertrain (“E-Motion™”) is the first fully electric purpose built outboard powertrain system that combines an advanced battery pack, inverter, and high efficiency motor with proprietary union assembly between the transmission and the electric motor design utilizing extensive control software. Our E-Motion™ and related technologies used in this powertrain system are uniquely designed to improve the efficiency of the outboard powertrain and, as a result, enhance both range and performance. Vision Marine continues to design, innovate, manufacture, and sell handcrafted, high performance, environmentally friendly, electric recreational power boats to customers. The design and technology applied to our boats results in far greater enhanced performance in general, higher speeds, and longer range. Simply stated, a smoother ride than a traditional internal combustion engine (ICE) motorboat.

Forward-Looking Statements

Certain statements made in this press releaseare “forward-looking statements” within the meaning of the “safe harbor” provisions of the Private SecuritiesLitigation Reform Act of 1995. Forward-looking statements may be identified by the use of words such as “anticipate,” “believe,” “expect,” “estimate,” “plan,” “outlook,” and “project” and other similarexpressions that predict or indicate future events or trends or that are not statements of historical matters. These forward-lookingstatements reflect the current analysis of existing information and are subject to various risks and uncertainties. As a result, actualresults may differ materially from these expectations due to changes in global, regional, or local economic, business, competitive, market,regulatory and other factors, many of which are outside of Vision Marine’s control. Important factors that could cause actual resultsto differ materially from those in the forward-looking statements are set forth in Vision Marine’s Annual Report on Form 20-F,filed with the U.S. Securities and Exchange Commission (SEC) for the year ended August 31, 2020, as such factors may be updated fromtime to time in Vision Marine’s periodic filings with the SEC. Any forward-looking statement in this press release speaks onlyas of the date of this release. Vision Marine undertakes no obligation to publicly update or review any forward-looking statement, whetheras a result of new information, future developments or otherwise, except as may be required by any applicable securities laws. https://visionmarinetechnologies.com.

Investor and Company Contact:

Bruce Nurse

Vision Marine Technologies, Inc.

(800) 871-4274

bn@v-mti.com

Dave Gentry

RedChip Companies Inc.

800-RED-CHIP (733-2447) or 407-491-4498

dave@redchip.com