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NKTR 424B5: Secondary offering

Nektar Therapeutics

Filed with the SEC on · accession 0001193125-26-215065

NKTR filed a 424B5 (prospectus (offering)) with the SEC on May 8, 2026. Nektar Therapeutics filed a prospectus supplement to offer up to $150,000,000 of its common stock in an at-the-market offering through Guggenheim Securities and H.C. The stock moved -1.8% by the first close after the filing.

Summary of the filing

Nektar Therapeutics filed a prospectus supplement to offer up to $150,000,000 of its common stock in an at-the-market offering through Guggenheim Securities and H.C. Wainwright & Co.

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

Key details

Maximum aggregate offering price of common stock$150.0M
Sales agent commission rate$3
IssuerNektar Therapeutics
Sales agentGuggenheim Securities, LLC
Sales agentH.C. Wainwright & Co., LLC

How NKTR stock reacted

Close before

$83.37

May 7, 2026

First close after

-1.78%

$81.89

5 trading days

-10.84%

$74.33

Since filing

-55.31%

$37.26

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Frequently asked questions

What did NKTR file with the SEC on May 8, 2026?

NKTR filed a 424B5 (Secondary offering). Nektar Therapeutics filed a prospectus supplement to offer up to $150,000,000 of its common stock in an at-the-market offering through Guggenheim Securities and H.C. Wainwright & Co.

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

NKTR closed at $83.37 before the filing and $81.89 on May 8, 2026 (-1.78%). Five trading days later: $74.33 (-10.84%).

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