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PLSE 424B5: Secondary offering

Pulse Biosciences

Filed with the SEC on · accession 0001437749-26-030455

PLSE filed a 424B5 (prospectus (offering)) with the SEC on Sep 15, 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

Pulse Biosciences entered into a sales agreement with Mizuho Securities to sell up to $85 million of common stock in an at-the-market offering, supplementing a prior August 2026 agreement under which $68.8 million had already been sold.

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

Key details

Maximum aggregate offering price of common stock under new sales agreement$85.0M
Aggregate offering price of shares sold under prior August 2026 agreement$68.8M
IssuerPulse Biosciences, Inc.
Sales agent/underwriterMizuho Securities USA LLC

How PLSE stock reacted

Close before

$54.21

Sep 14, 2026

First close after

+1.83%

$55.20

5 trading days

-1.66%

$53.31

Since filing

-2.10%

$53.07

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Frequently asked questions

What did PLSE file with the SEC on Sep 15, 2026?

PLSE filed a 424B5 (Secondary offering). Pulse Biosciences entered into a sales agreement with Mizuho Securities to sell up to $85 million of common stock in an at-the-market offering, supplementing a prior August 2026 agreement under which $68.8 million had already been sold.

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

PLSE closed at $54.21 before the filing and $55.20 on Sep 15, 2026 (+1.83%). Five trading days later: $53.31 (-1.66%).

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