STOCK TITAN

MAIA Biotechnology (MAIA) halts ATM share sales and terminates program

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
8-K

Rhea-AI Filing Summary

MAIA Biotechnology, Inc. has suspended sales of its common stock under its At The Market Offering Agreement with H.C. Wainwright & Co. and has given notice to terminate the agreement effective seven business days after May 14, 2026.

Under a March 28, 2025 prospectus supplement for up to $11,200,000, the company offered and sold 3,116,012 shares of common stock, generating gross proceeds of approximately $5,680,924 before ending use of this at-the-market program.

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Item 1.02 Termination of a Material Definitive Agreement Business
A significant contract was terminated, which may affect business operations or revenue.
ATM program capacity $11,200,000 Prospectus supplement dated March 28, 2025
Shares sold under ATM 3,116,012 shares Common stock sold pursuant to sales agreement
Gross proceeds from ATM $5,680,924 Approximate gross proceeds from ATM share sales
Termination effective period 7 business days Effective after May 14, 2026 notice
At The Market Offering Agreement financial
"suspended sales of its common stock, par value $0.0001 per share (“Common Stock”), pursuant to that certain At The Market Offering Agreement dated February 14, 2024"
An at-the-market offering agreement is a contract that lets a company sell newly issued shares directly into the open market through a broker, at whatever price the stock is trading at that moment. For investors this matters because it can increase the number of shares available (which may dilute existing ownership) while providing a flexible, often faster way for the company to raise cash without fixing a price, similar to a vendor selling small batches at current market stalls rather than setting a single fixed price.
prospectus supplement regulatory
"Since filing of the March 28, 2025 prospectus supplement for up to $11,200,000 under the sales agreement"
A prospectus supplement is an additional document provided alongside a company's main offering details, offering updated or extra information about a specific financial product being sold. It helps investors understand the latest terms, risks, and details of the investment, similar to how an update or revision clarifies or expands on original instructions, ensuring they have current and complete information before making a decision.
gross proceeds financial
"we have offered and sold 3,116,012 shares of common stock for gross proceeds of approximately $5,680,924"
The total amount of cash a company receives from a financing event or sale before any fees, expenses, taxes or deductions are taken out. Investors watch gross proceeds because it shows the raw scale of new capital being raised—think of it as the paycheck amount before withholdings—which helps assess how much funding is available for operations, growth, debt payoff or how much shareholder dilution might occur once costs are removed.
emerging growth company regulatory
"405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2). Emerging growth company"
An emerging growth company is a recently public or smaller public firm that qualifies for temporary, lighter regulatory and disclosure rules to reduce the cost and effort of being public. For investors, it means the company may provide less historical financial detail and face fewer reporting requirements than larger firms, so it can grow more quickly but also carries higher uncertainty—like buying a promising early-stage product with fewer user reviews.
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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

FORM 8-K

 

Current Report

 

Pursuant to Section 13 or 15(d)

of The Securities Exchange Act of 1934

 

Date of Report (Date of earliest event reported): May 14, 2026

 

MAIA Biotechnology, Inc.

(Exact name of registrant as specified in its charter)

 

Delaware   001-41455   83-1495913

(State or other jurisdiction

of incorporation)

 

(Commission

File Number)

 

(IRS Employer

Identification No.)

 

444 West Lake Street, Suite 1700    
Chicago, IL   60606
(Address of principal executive offices)   (Zip Code)

 

(312) 416-8592

(Registrant’s telephone number, including area code)

 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

 

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
   
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
   
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
   
Pre-commencement communications pursuant to Rule 13e-4© under the Exchange Act (17 CFR 240.13e-4©)

 

Securities registered pursuant to Section 12(b) of the Act:

 

Title of each class   Trading Symbol(s)   Name of each exchange on which registered
Common Stock   MAIA   NYSE American

 

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

 

Emerging growth company

 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

 

 

 

 

 

 

Item 1.02Termination of a Material Definitive Agreement.

 

On May 14, 2026, MAIA Biotechnology, Inc. (the “Company”) suspended sales of its common stock, par value $0.0001 per share (“Common Stock”), pursuant to that certain At The Market Offering Agreement dated February 14, 2024, or the sales agreement, between the Company and H.C. Wainwright & Co., LLC (the “Agent”), the Company’s sales agent thereunder, and provided notice to the Agent that it is terminating the sales agreement, which termination will be effective 7-business days after May 14, 2026, in accordance with the terms of the sales agreement. Since filing of the March 28, 2025 prospectus supplement for up to $11,200,000 under the sales agreement, we have offered and sold 3,116,012 shares of common stock for gross proceeds of approximately $5,680,924 pursuant to the sales agreement.

 

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SIGNATURES

 

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 

Dated: May 14, 2026

 

  MAIA BIOTECHNOLOGY, INC.
     
  By:

/s/ Vlad Vitoc

  Name: Vlad Vitoc
  Title: Chief Executive Officer

 

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FAQ

What did MAIA (MAIA) disclose about its at-the-market offering?

MAIA Biotechnology suspended sales of common stock under its At The Market Offering Agreement with H.C. Wainwright & Co. and notified the agent it will terminate the agreement, with termination becoming effective seven business days after May 14, 2026.

How much stock did MAIA (MAIA) sell through its ATM program?

MAIA Biotechnology sold 3,116,012 shares of common stock through its at-the-market program. These shares were issued under a prospectus supplement tied to the sales agreement with H.C. Wainwright & Co., generating several million dollars in gross proceeds for the company.

What were MAIA (MAIA) gross proceeds from the ATM stock sales?

MAIA Biotechnology reported gross proceeds of approximately $5,680,924 from shares sold under its At The Market Offering Agreement. These proceeds came from issuing millions of common shares pursuant to a prospectus supplement associated with the program before MAIA decided to suspend and terminate it.

What was the maximum amount MAIA (MAIA) could offer under the ATM prospectus?

The prospectus supplement dated March 28, 2025 permitted MAIA Biotechnology to offer up to $11,200,000 of common stock under the sales agreement. The company used this capacity to sell over three million shares before later suspending sales and initiating termination of the agreement.

When does MAIA (MAIA) termination of the ATM agreement become effective?

MAIA Biotechnology’s termination of its At The Market Offering Agreement becomes effective seven business days after May 14, 2026. The company has already suspended additional sales under the agreement and formally notified H.C. Wainwright & Co., the sales agent, in line with the agreement’s terms.

Who was MAIA (MAIA) sales agent for the ATM offering?

H.C. Wainwright & Co., LLC served as MAIA Biotechnology’s sales agent under the At The Market Offering Agreement. The firm handled sales of MAIA’s common stock pursuant to the March 28, 2025 prospectus supplement until MAIA suspended sales and moved to terminate the agreement.

Filing Exhibits & Attachments

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