Ascent Solar (NASDAQ: ASTI) expands ATM common stock capacity

Rhea-AI Filing Summary

Ascent Solar Technologies is updating its at-the-market offering to register and offer up to $758,818 of its common stock through H.C. Wainwright under an existing sales agreement. This new limit reflects the maximum amount the company is currently eligible to sell under General Instruction I.B.6 of Form S-3, based on its public float. The company notes that approximately $11,883,824.54 of common stock has already been sold under the same sales agreement and prospectus to date. As of 3,047,658 shares outstanding, with 3,043,032 held by non-affiliates at a reference price of $3.24 per share, the public float is about $9,859,423.68, which constrains primary offerings to no more than one-third of that amount in any 12-month period.

Filed Pursuant to Rule 424(b)(5)
Registration No. 333-267971

PROSPECTUS SUPPLEMENT

(to Prospectus Supplements Dated May 16, 2024, May 23, 2024, and May 30, 2024 to

Prospectus Dated November 7, 2022) 

Ascent Solar Technologies, Inc.

Up to $758,818

Common Stock

This prospectus supplement (this “Supplement”) amends, modifies, supersedes and supplements certain information contained in, and should be read in conjunction with, our prospectus supplements, dated May 16, 2024, May 23, 2024, and May 30, 2024 (collectively, the “Prospectus Supplement”), and the accompanying base prospectus, dated November 7, 2022 (the “Base Prospectus” and, collectively with the Prospectus Supplement, the “Prospectus”) filed as part of our registration statement on Form S-3 (File No. 333-267971) (the “Registration Statement”), relating to the offering, issuance and sale by us of our common stock, par value $0.0001 per share (“common stock”), from time to time that may be issued and sold under the At The Market Offering Agreement (the “Sales Agreement”), dated May 16, 2024, by and between us and H.C. Wainwright & Co., LLC (“Wainwright”). This Supplement should be read in conjunction with the Prospectus, and is qualified by reference thereto, except to the extent that the information herein amends or supersedes the information contained in the Prospectus. This Supplement is not complete without, and may only be delivered or utilized in connection with, the Prospectus, and any future amendments or supplements thereto.

We are filing this Supplement to amend the Prospectus Supplement to update the maximum amount of shares we are eligible to sell under the Registration Statement pursuant to General Instruction I.B.6 of Form S-3. We are increasing the amount of shares of common stock we may offer and sell under the Sales Agreement to an aggregate offering price of up to $758,818 from time to time through Wainwright, which does not include the shares of common stock having an aggregate gross sales price of approximately $11,883,824.54 that were sold pursuant to the Prospectus and in accordance with the Sales Agreement to date. In the event that we may sell additional amounts under the Sales Agreement and in accordance with General Instruction I.B.6 of Form S-3, we will file another prospectus supplement prior to making such additional sales.

As of August 20, 2025, the aggregate market value of our outstanding common stock held by non-affiliates, or our public float, was approximately $9,859,423.68 based on a total number of 3,047,658 shares of common stock outstanding, of which 3,043,032 shares of common stock were held by non-affiliates, at a price of $3.24 per share, the closing sale price of our common stock on June 27, 2025, which is the highest closing price of our common stock on Nasdaq within the prior 60 days. During the prior 12-calendar-month period that ends on, and includes, the date of this Supplement, we have sold $2,527,656.10 of shares of common stock pursuant to General Instruction IB.6 of Form S-3. Accordingly, based on the foregoing, we are currently eligible under General Instruction I.B.6 of Form S-3 to offer and sell shares of our common stock having an aggregate offering price of up to approximately $758,818. Pursuant to General Instruction I.B.6 of Form S-3, in no event will we sell securities in a public primary offering with a value exceeding one-third of our public float in any 12-month period so long as our public float remains below $75.0 million.

Our common stock is listed on the Nasdaq Capital Market under the symbol “ASTI”. On August 19, 2025, the last reported sale price of our common stock on the Nasdaq Capital Market was $2.35 per share.

Investing in our securities involves a high degree of risk. You should review carefully the risks and uncertainties under the heading “Risk Factors” on page 4 of the Base Prospectus dated November 7, 2022, on page S-7 of the prospectus supplement filed on May 30, 2024, and the other documents that are incorporated by reference to this Supplement.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities, or determined if this prospectus is accurate or complete. Any representation to the contrary is a criminal offense.

H.C. Wainwright & Co.

The date of this prospectus supplement is August 20, 2025

FAQ

What is Ascent Solar Technologies (ASTI) offering in this prospectus supplement?

Ascent Solar Technologies is updating its at-the-market program to offer and sell up to $758,818 of its common stock from time to time through H.C. Wainwright & Co. under an existing sales agreement.

Why is the new Ascent Solar (ASTI) ATM limit set at $758,818?

The $758,818 limit reflects the maximum aggregate offering price Ascent Solar is currently eligible to sell under General Instruction I.B.6 of Form S-3, which caps primary offerings at one-third of the company’s public float over a 12‑month period.

How much stock has Ascent Solar already sold under the H.C. Wainwright ATM program?

Ascent Solar states that shares of common stock with an aggregate gross sales price of approximately $11,883,824.54 have already been sold under the existing prospectus and sales agreement with H.C. Wainwright.

What is Ascent Solar’s current public float and share count?

As of August 20, 2025, Ascent Solar reports a public float of approximately $9,859,423.68, based on 3,047,658 shares of common stock outstanding, of which 3,043,032 shares are held by non‑affiliates at a reference price of $3.24 per share.

What stock exchange is Ascent Solar (ASTI) listed on and what is the recent trading price?

Ascent Solar’s common stock trades on the Nasdaq Capital Market under the symbol ASTI. The last reported sale price on August 19, 2025 was $2.35 per share.

Will Ascent Solar receive proceeds from this $758,818 ATM offering?

The supplement describes a primary at-the-market offering of common stock by Ascent Solar through H.C. Wainwright, which means the company is the issuer of the shares and would receive the gross proceeds from any sales made under this updated $758,818 capacity.

What risk disclosures apply to this Ascent Solar ATM stock offering?

Investors are directed to review the “Risk Factors” sections in the base prospectus dated November 7, 2022, the May 30, 2024 prospectus supplement, and other documents incorporated by reference for a discussion of risks related to investing in Ascent Solar’s securities.