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STIM 424B5: Secondary offering

Neuronetics, Inc.

Filed with the SEC on · accession 0001193125-26-455694

STIM filed a 424B5 (prospectus (offering)) with the SEC on Nov 10, 2026. Neuronetics, Inc. filed a preliminary prospectus supplement for an underwritten public offering of shares of its common stock, with William Blair as lead book-running manager. The stock moved -7.8% by the first close after the filing.

Summary of the filing

Neuronetics, Inc. filed a preliminary prospectus supplement for an underwritten public offering of shares of its common stock, with William Blair as lead book-running manager. The offering size, price, and use of proceeds are not yet specified in this preliminary filing.

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

Key details

IssuerNeuronetics, Inc.
Lead book-running managerWilliam Blair
BookrunnerBTIG
BookrunnerCanaccord Genuity

How STIM stock reacted

Close before

$2.18

Nov 9, 2026

First close after

-7.80%

$2.01

5 trading days

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Since filing

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Frequently asked questions

What did STIM file with the SEC on Nov 10, 2026?

STIM filed a 424B5 (Secondary offering). Neuronetics, Inc. filed a preliminary prospectus supplement for an underwritten public offering of shares of its common stock, with William Blair as lead book-running manager. The offering size, price, and use of proceeds are not yet specified in this preliminary filing.

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

STIM closed at $2.18 before the filing and $2.01 on Nov 10, 2026 (-7.80%).

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