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SNTI 424B3: Secondary offering

Senti Biosciences Holdings, Inc.

Filed with the SEC on · accession 0001193125-26-401118

SNTI filed a 424B3 (prospectus (offering)) with the SEC on Sep 24, 2026. Senti Biosciences Holdings, Inc. filed a prospectus for the resale of up to 25,555,024 shares of common stock by selling securityholders, representing 82.1% of outstanding shares, issued upon exchange of senior secured convertible notes. The stock moved +1.5% by the first close after the filing.

Summary of the filing

Senti Biosciences Holdings, Inc. filed a prospectus for the resale of up to 25,555,024 shares of common stock by selling securityholders, representing 82.1% of outstanding shares, issued upon exchange of senior secured convertible notes. The company received $15.5 million in net proceeds from the note issuances but will not receive proceeds from the resale.

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Key details

Shares offered for resale$25.6M
Net proceeds from note issuances$15.5M
Last quoted sale price per share$0
IssuerSenti Biosciences Holdings, Inc.
SubsidiarySenti Holdings, Inc.

How SNTI stock reacted

Close before

$0.34

Sep 23, 2026

First close after

+1.48%

$0.34

5 trading days

-7.63%

$0.31

Since filing

-52.66%

$0.16

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Frequently asked questions

What did SNTI file with the SEC on Sep 24, 2026?

SNTI filed a 424B3 (Secondary offering). Senti Biosciences Holdings, Inc. filed a prospectus for the resale of up to 25,555,024 shares of common stock by selling securityholders, representing 82.1% of outstanding shares, issued upon exchange of senior secured convertible notes. The company received $15.5 million in net proceeds from the note issuances but will not receive proceeds from the resale.

What does a secondary offering mean for SNTI stock?

New shares dilute existing holders and are often sold at a discount to the market price.

How do I read a 424B3?

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 424B3 (prospectus (offering)): The final terms of an offering of shares or bonds.

How did SNTI stock react to this filing?

SNTI closed at $0.34 before the filing and $0.34 on Sep 24, 2026 (+1.48%). Five trading days later: $0.31 (-7.63%).

Other SNTI SEC filings

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