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ZNTL 424B5: Secondary offering

Zentalis Pharmaceuticals

Filed with the SEC on · accession 0001628280-26-056729

ZNTL filed a 424B5 (prospectus (offering)) with the SEC on Aug 13, 2026. Zentalis Pharmaceuticals filed a preliminary prospectus supplement for a follow-on public offering of common stock and pre-funded warrants. The stock moved -3.3% by the first close after the filing.

Summary of the filing

Zentalis Pharmaceuticals filed a preliminary prospectus supplement for a follow-on public offering of common stock and pre-funded warrants. The offering size and price are not yet determined, with the stock trading at $4.29 per share as of August 12, 2026.

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

Key details

Last reported sale price of common stock$4
IssuerZentalis Pharmaceuticals, Inc.
UnderwriterTD Cowen
UnderwriterGuggenheim Securities
UnderwriterOppenheimer & Co.

How ZNTL stock reacted

Close before

$4.29

Aug 12, 2026

First close after

-3.26%

$4.15

5 trading days

-10.96%

$3.82

Since filing

-59.91%

$1.72

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Frequently asked questions

What did ZNTL file with the SEC on Aug 13, 2026?

ZNTL filed a 424B5 (Secondary offering). Zentalis Pharmaceuticals filed a preliminary prospectus supplement for a follow-on public offering of common stock and pre-funded warrants. The offering size and price are not yet determined, with the stock trading at $4.29 per share as of August 12, 2026.

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

ZNTL closed at $4.29 before the filing and $4.15 on Aug 13, 2026 (-3.26%). Five trading days later: $3.82 (-10.96%).

Other ZNTL SEC filings

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