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QNRX 424B5: Shelf registration

Quoin Pharmaceuticals

Filed with the SEC on · accession 0001104659-26-122766

QNRX filed a 424B5 (prospectus (offering)) with the SEC on Nov 4, 2026. Quoin Pharmaceuticals filed a prospectus supplement under Rule 424(b)(5) covering a shelf registration allowing the company to offer and sell up to $150,000,000 in aggregate of ordinary shares represented by ADSs, warrants, subscription rights, debt securities, and units from time to time. The stock moved +1.5% by the first close after the filing.

Summary of the filing

Quoin Pharmaceuticals filed a prospectus supplement under Rule 424(b)(5) covering a shelf registration allowing the company to offer and sell up to $150,000,000 in aggregate of ordinary shares represented by ADSs, warrants, subscription rights, debt securities, and units from time to time. No specific offering terms or amounts were set in this filing.

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

Key details

Maximum aggregate offering amount under shelf registration$150.0M
Public float of non-affiliate held ordinary shares represented by ADSs$36.4M
Closing price per ADS on October 23, 2026$4
IssuerQuoin Pharmaceuticals Ltd.

How QNRX stock reacted

Close before

$3.93

Nov 3, 2026

First close after

+1.53%

$3.99

5 trading days

—

Since filing

-3.31%

$3.80

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Frequently asked questions

What did QNRX file with the SEC on Nov 4, 2026?

QNRX filed a 424B5 (Shelf registration). Quoin Pharmaceuticals filed a prospectus supplement under Rule 424(b)(5) covering a shelf registration allowing the company to offer and sell up to $150,000,000 in aggregate of ordinary shares represented by ADSs, warrants, subscription rights, debt securities, and units from time to time. No specific offering terms or amounts were set in this filing.

What does a shelf registration mean for QNRX 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 QNRX stock react to this filing?

QNRX closed at $3.93 before the filing and $3.99 on Nov 4, 2026 (+1.53%).

Other QNRX SEC filings

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