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CGON 424B5: Secondary offering

CG Oncology

Filed with the SEC on · accession 0001193125-26-336792

CGON filed a 424B5 (prospectus (offering)) with the SEC on Aug 6, 2026. CG Oncology filed an amendment to its prospectus to increase the aggregate offering price of common stock available for sale under its Open Market Sale Agreement with Jefferies by an additional $500 million, bringing the total to up to $1.05 billion. The stock moved +3.4% by the first close after the filing.

Summary of the filing

CG Oncology filed an amendment to its prospectus to increase the aggregate offering price of common stock available for sale under its Open Market Sale Agreement with Jefferies by an additional $500 million, bringing the total to up to $1.05 billion. The company had previously sold 10,800,525 shares for gross proceeds of approximately $550 million.

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Key details

Additional offering amount$500.0M
Total aggregate offering price$1.1B
Previous gross proceeds from sales$550.0M
Shares previously sold$10.8M
Underwriter commission rate$3
IssuerCG Oncology, Inc.
Sales agent/underwriterJefferies LLC

How CGON stock reacted

Close before

$72.42

Aug 5, 2026

First close after

+3.36%

$74.85

5 trading days

+6.31%

$76.99

Since filing

+0.08%

$72.48

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Frequently asked questions

What did CGON file with the SEC on Aug 6, 2026?

CGON filed a 424B5 (Secondary offering). CG Oncology filed an amendment to its prospectus to increase the aggregate offering price of common stock available for sale under its Open Market Sale Agreement with Jefferies by an additional $500 million, bringing the total to up to $1.05 billion. The company had previously sold 10,800,525 shares for gross proceeds of approximately $550 million.

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

CGON closed at $72.42 before the filing and $74.85 on Aug 6, 2026 (+3.36%). Five trading days later: $76.99 (+6.31%).

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