Company: FTCI
Filing Date: 2025-05-01
Form Type: S-3
Source: 0001193125-25-109056
Chunk: 4

Company: FTC Solar, Inc.
Filing Date: 2025-05-01
Form: S-3
Chunk 4
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 the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.

Prospectus dated May 1, 2025

TABLE OF CONTENTS

| ABOUT THIS PROSPECTUS                                           |     |    1 |
| PROSPECTUS SUMMARY                                              |     |    3 |
| RISK FACTORS                                                    |     |   11 |
| CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS       |     |   12 |
| DESCRIPTION OF DEBT SECURITIES                                  |     |   21 |
| PLAN OF DISTRIBUTION FOR SECURITIES OFFERED BY US               |     |   24 |
| LEGAL MATTERS                                                   |     |   26 |
| EXPERTS                                                         |     |   26 |
| WHERE YOU CAN FIND MORE INFORMATION; INCORPORATION BY REFERENCE |     |   27 |
| PART II – INFORMATION NOT REQUIRED IN PROSPECTUS                |     | II-1 |
| EXHIBIT INDEX                                                   |     | II-5 |
| SIGNATURES                                                      |     | II-6 |

ABOUT THIS PROSPECTUS

General

This prospectus is part of a
registration statement that we filed with the SEC using a “shelf” registration process. Under this shelf registration process, we may offer and sell from time to time the securities described in this prospectus in one or more offerings for
an aggregate offering price of up to $65,000,000. This prospectus only provides you with a general description of the securities that we may offer. Each time we sell securities, we will provide a supplement to this prospectus that contains specific
information about the terms of that offering, including the specific amounts, prices and terms of the securities offered. The prospectus supplement may also add, update or change information contained in this prospectus. You should carefully read
both this prospectus, any accompanying prospectus supplement and any free writing prospectus prepared by or on behalf of us, together with the additional information described under the heading “WHERE YOU CAN FIND MORE INFORMATION; INCORPORATION BY REFERENCE.”

We have not authorized anyone to provide you with any information other than that contained in or
incorporated by reference into this prospectus, any accompanying prospectus supplement and any free writing prospectus prepared by or on behalf of us. We take no responsibility for, and can provide no assurance as to the reliability of, any other
information that others may give you.