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MAIA 424B3: Secondary offering

MAIA Biotechnology

Filed with the SEC on · accession 0001493152-26-046059

MAIA filed a 424B3 (prospectus (offering)) with the SEC on Oct 7, 2026. MAIA Biotechnology filed a 424B3 prospectus for the resale of 751,879 shares of common stock by selling stockholder PoC Capital, LLC, which received the shares under a Clinical Trial Funding Agreement. The stock moved -0.8% by the first close after the filing.

Summary of the filing

MAIA Biotechnology filed a 424B3 prospectus for the resale of 751,879 shares of common stock by selling stockholder PoC Capital, LLC, which received the shares under a Clinical Trial Funding Agreement. The company will not receive any proceeds from the resale.

For details, click here →How to read a 424B3 →

Key details

Shares offered for resale$752K
Closing price per share on September 22, 2026$1
IssuerMAIA Biotechnology, Inc.
Selling stockholderPoC Capital, LLC

How MAIA stock reacted

Close before

$1.19

Oct 6, 2026

First close after

-0.84%

$1.18

5 trading days

-2.52%

$1.16

Since filing

-10.92%

$1.06

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Frequently asked questions

What did MAIA file with the SEC on Oct 7, 2026?

MAIA filed a 424B3 (Secondary offering). MAIA Biotechnology filed a 424B3 prospectus for the resale of 751,879 shares of common stock by selling stockholder PoC Capital, LLC, which received the shares under a Clinical Trial Funding Agreement. The company will not receive any proceeds from the resale.

What does a secondary offering mean for MAIA stock?

New shares dilute existing holders and are often sold at a discount to the market price.

How do I read a 424B3?

The final terms of an offering of shares or bonds. Look at price, number of shares and the discount to the market price. Large offerings dilute existing shareholders.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 424B3 (prospectus (offering)): The final terms of an offering of shares or bonds.

How did MAIA stock react to this filing?

MAIA closed at $1.19 before the filing and $1.18 on Oct 7, 2026 (-0.84%). Five trading days later: $1.16 (-2.52%).

Other MAIA SEC filings

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