Company: FTCI
Filing Date: 2025-05-01
Form Type: 424B5
Source: 0001193125-25-109046
Chunk: 0

Company: FTC Solar, Inc.
Filing Date: 2025-05-01
Form: 424B5
Chunk 0
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Filed pursuant to Rule 424(b)(5)
Registration Statement No. 333-265842

Prospectus Supplement

(To Prospectus dated July 7, 2022)

FTC SOLAR, INC.

Up to $11,350,576

Common Stock

We have entered into an At the Market Offering Agreement dated as of May 1, 2025 (the “Sales Agreement”) with
H.C. Wainwright & Co., LLC (the “Manager” or “Wainwright”), relating to the sale of shares of our common stock, $0.0001 par value per share (the “common stock”). In accordance with the terms of the
Sales Agreement, from time to time we may offer and sell shares of our common stock through the Manager acting as sales agent and/or principal. Pursuant to this prospectus supplement and the accompanying base prospectus, from time to time we may
offer and sell shares of our common stock having an aggregate offering price of up to $11,350,576.

Sales of our common stock, if any,
under this prospectus supplement and the accompanying base prospectus may be made in sales deemed to be an “at the market offering” as defined in Rule 415(a)(4) promulgated under the Securities Act of 1933, as amended (the “Securities
Act”), including sales made directly on or through the Nasdaq Capital Market (“Nasdaq”), the existing trading market for our common stock, or any other existing trading market in the United States for our common stock, sales made to
or through a market maker other than on an exchange or otherwise, directly to the Manager as principal, in negotiated transactions at market prices prevailing at the time of sale or at prices related to such prevailing market prices, and/or in any
other method permitted by law. Subject to terms of the Sales Agreement, the Manager is not required to sell any specific number or dollar amounts of securities, but will act as a sales agent using commercially reasonable efforts consistent with its
normal trading and sales practices, on mutually agreed terms between the Manager and us. There is no arrangement for funds to be received in any escrow, trust or similar arrangement.

The Manager will be entitled to compensation under the terms of the Sales Agreement at a commission rate of up to 3.0% of the gross sales price
per share sold. In connection with the sale of our shares of common stock on our behalf, the Manager will be deemed to be an “under