ALTO INGREDIENTS, INC.

 

Up to $50,000,000 of Common Stock

We have entered into an At-The-Market Issuance Sales Agreement, or the Sales Agreement, with Craig-Hallum Capital Group LLC, or Craig-Hallum, The Benchmark Company, LLC, or Benchmark, and H.C. Wainwright & Co., LLC, or Wainwright, relating to shares of our common stock, par value $0.001 per share, offered by this prospectus supplement and the accompanying prospectus. Craig-Hallum, Benchmark and Wainwright are each referred to as an Agent and, collectively, as the Agents. In accordance with the terms of the Sales Agreement, from time to time we may offer and sell shares of our common stock having an aggregate offering price of up to $50.0 million through Craig-Hallum, or the Designated Agent, acting as designated sales agent and/or to any Agent selected by us, acting as principal.

Our common stock is listed on The Nasdaq Capital Market under the symbol "ALTO." On August 4, 2026, the last reported sale price of our common stock on The Nasdaq Capital Market was $5.29 per share.

Sales of our common stock, if any, under this prospectus supplement and the accompanying prospectus will 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, or the Securities Act. Subject to terms of the Sales Agreement, the Designated Agent is not required to sell any specific number or dollar amount of common stock but will act as our sales agent using commercially reasonable efforts consistent with its normal trading and sales practices to sell on our behalf all of the shares of common stock requested to be sold by us, on mutually agreed terms between the Designated Agent and us. There is no arrangement for funds to be received in any escrow, trust or similar arrangement.