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TNON 424B3: Secondary offering

Tenon Medical

Filed with the SEC on · accession 0001213900-26-097777

TNON filed a 424B3 (prospectus (offering)) with the SEC on Sep 8, 2026. Tenon Medical filed a prospectus for the resale of up to 1,836,046 shares of common stock by selling stockholders, including shares issuable upon exercise of warrants and shares issued to employees and a vendor. The stock moved -9.7% by the first close after the filing.

Summary of the filing

Tenon Medical filed a prospectus for the resale of up to 1,836,046 shares of common stock by selling stockholders, including shares issuable upon exercise of warrants and shares issued to employees and a vendor. The company will not receive proceeds from the resale but may receive proceeds from warrant exercises.

For details, click here →How to read a 424B3 →

Key details

Total shares registered for resale$1.8M
Closing price per share on September 1, 2026$5
IssuerTenon Medical, Inc.
Vendor/asset sellerSiVantage, Inc.
Chief innovation officerWyatt Geist
Chief commercial officerNathaniel Grawey

How TNON stock reacted

Close before

$3.72

Sep 4, 2026

First close after

-9.68%

$3.36

5 trading days

+49.46%

$5.56

Since filing

-55.91%

$1.64

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Frequently asked questions

What did TNON file with the SEC on Sep 8, 2026?

TNON filed a 424B3 (Secondary offering). Tenon Medical filed a prospectus for the resale of up to 1,836,046 shares of common stock by selling stockholders, including shares issuable upon exercise of warrants and shares issued to employees and a vendor. The company will not receive proceeds from the resale but may receive proceeds from warrant exercises.

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

TNON closed at $3.72 before the filing and $3.36 on Sep 8, 2026 (-9.68%). Five trading days later: $5.56 (+49.46%).

Other TNON SEC filings

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