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ABCL 424B5: Secondary offering

AbCellera Biologics Inc.

Filed with the SEC on · accession 0001193125-26-344944

ABCL filed a 424B5 (prospectus (offering)) with the SEC on Aug 11, 2026. AbCellera Biologics Inc. filed a preliminary prospectus supplement for a $200,000,000 offering of common shares and pre-funded warrants to purchase common shares, with Jefferies, J.P. The stock moved +4.5% by the first close after the filing.

Summary of the filing

AbCellera Biologics Inc. filed a preliminary prospectus supplement for a $200,000,000 offering of common shares and pre-funded warrants to purchase common shares, with Jefferies, J.P. Morgan, Cantor, UBS Investment Bank, and BMO Capital Markets acting as underwriters.

For details, click here →How to read a 424B5 →

Key details

Total offering amount$200.0M
IssuerAbCellera Biologics Inc.
UnderwriterJefferies
UnderwriterJ.P. Morgan
UnderwriterCantor
UnderwriterUBS Investment Bank
UnderwriterBMO Capital Markets

How ABCL stock reacted

Close before

$9.34

Aug 10, 2026

First close after

+4.50%

$9.76

5 trading days

+19.91%

$11.20

Since filing

+33.83%

$12.50

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Frequently asked questions

What did ABCL file with the SEC on Aug 11, 2026?

ABCL filed a 424B5 (Secondary offering). AbCellera Biologics Inc. filed a preliminary prospectus supplement for a $200,000,000 offering of common shares and pre-funded warrants to purchase common shares, with Jefferies, J.P. Morgan, Cantor, UBS Investment Bank, and BMO Capital Markets acting as underwriters.

What does a secondary offering mean for ABCL stock?

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

How do I read a 424B5?

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 424B5 (prospectus (offering)): The final terms of an offering of shares or bonds.

How did ABCL stock react to this filing?

ABCL closed at $9.34 before the filing and $9.76 on Aug 11, 2026 (+4.50%). Five trading days later: $11.20 (+19.91%).

Other ABCL SEC filings

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