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DSP 424B5: Secondary offering

Filed with the SEC on · accession 0001628280-26-062297

DSP filed a 424B5 (prospectus (offering)) with the SEC on Sep 16, 2026. The final terms of an offering of shares or bonds. The stock moved -1.8% by the first close after the filing.

Summary of the filing

Selling stockholder is offering 8,500,000 shares of Class A common stock; company will not receive proceeds from the selling stockholder's shares but may receive proceeds from underwriters' option to purchase up to an additional 1,275,000 shares.

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

Key details

Shares offered by selling stockholdershares 8.5M
Additional shares subject to underwriters' optionshares 1.3M
Last reported sale price per share$13
IssuerViant Technology Inc.
UnderwriterEvercore ISI
UnderwriterWells Fargo Securities
UnderwriterRBC Capital Markets
UnderwriterCraig-Hallum

How DSP stock reacted

Close before

$12.60

Sep 15, 2026

First close after

-1.83%

$12.37

5 trading days

+1.90%

$12.84

Since filing

+1.94%

$12.85

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Frequently asked questions

What did DSP file with the SEC on Sep 16, 2026?

DSP filed a 424B5 (Secondary offering). Selling stockholder is offering 8,500,000 shares of Class A common stock; company will not receive proceeds from the selling stockholder's shares but may receive proceeds from underwriters' option to purchase up to an additional 1,275,000 shares.

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

DSP closed at $12.60 before the filing and $12.37 on Sep 16, 2026 (-1.83%). Five trading days later: $12.84 (+1.90%).

Other DSP SEC filings

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