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IMA 424B3: Secondary offering

ImageneBio, Inc.

Filed with the SEC on · accession 0001193125-26-335180

IMA filed a 424B3 (prospectus (offering)) with the SEC on Aug 5, 2026. The final terms of an offering of shares or bonds. The stock moved +0.7% by the first close after the filing.

Summary of the filing

ImageneBio, Inc. filed a prospectus supplement for the resale of 2,508,337 shares of common stock by selling stockholders, with the stock trading at $5.71 per share as of August 4, 2026.

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

Key details

shares offered for resale$2.5M
last reported sales price per share$6
IssuerImageneBio, Inc.

How IMA stock reacted

Close before

$5.71

Aug 4, 2026

First close after

+0.70%

$5.75

5 trading days

-1.75%

$5.61

Since filing

-27.50%

$4.14

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Frequently asked questions

What did IMA file with the SEC on Aug 5, 2026?

IMA filed a 424B3 (Secondary offering). ImageneBio, Inc. filed a prospectus supplement for the resale of 2,508,337 shares of common stock by selling stockholders, with the stock trading at $5.71 per share as of August 4, 2026.

What does a secondary offering mean for IMA 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 IMA stock react to this filing?

IMA closed at $5.71 before the filing and $5.75 on Aug 5, 2026 (+0.70%). Five trading days later: $5.61 (-1.75%).

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