Company: GANX
Filing Date: 2025-11-07
Form Type: S-3/A
Source: 0001104659-25-108472
Chunk: 12

Company: Gain Therapeutics, Inc.
Filing Date: 2025-11-07
Form: S-3/A
Chunk 12
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 proceeds in short-term, interest-bearing instruments or other investment-grade securities.

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TABLE OF CONTENTS

### THE SECURITIES WE MAY OFFER

#### General
The descriptions of the securities contained in this prospectus, together with the applicable prospectus supplements, summarize all of the material terms and provisions of the various types of securities that we may offer. We will describe in the applicable prospectus supplement relating to any securities the particular terms of the securities offered by that prospectus supplement. If we indicate in the applicable prospectus supplement, the terms of the securities may differ from the terms we have summarized below. We may also include in the prospectus supplement information about material United States federal income tax considerations relating to the securities, and the securities exchange, if any, on which the securities will be listed.

We may sell from time to time, in one or more offerings:

•

common stock;

•

preferred stock;

•

warrants to purchase shares of common stock or preferred stock;

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debt securities;

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subscription rights to purchase shares of common stock, preferred stock or debt securities; and

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units consisting of any combination of the securities listed above.

In this prospectus, we refer to the common stock, preferred stock, debt securities, subscription rights, warrants and units collectively as “securities.” The total dollar amount of all securities that we may sell pursuant to this prospectus will not exceed $100,000,000.

If we issue debt securities at a discount from their original stated principal amount, then, for purposes of calculating the total dollar amount of all securities issued under this prospectus, we will treat the initial offering price of the debt securities as the total original principal amount of the debt securities.

This prospectus may not be used to consummate a sale of securities unless it is accompanied by a prospectus supplement.

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TABLE OF CONTENTS

### DESCRIPTION OF CAPITAL STOCK
The following description of our capital stock and provisions of our amended and restated certificate of incorporation and amended and restated bylaws are summaries. You should also refer to the amended and restated certificate of incorporation and the amended and restated bylaws, which are filed as exhibits to the registration statement of which this prospectus is part.

#### General
Our amended and restated certificate of incorporation (“Amended Charter”) authorizes us to issue up to 50,000,000 shares of common stock, $0.0001 par value per share, and 10,000,