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S-1, S-3, and 424B

S-1 and S-3 register shares. A 424B is the supplement that states a sale. The form name is not enough. Not advice.

Register, then specify

An S-1 is a registration statement, often for a first sale or a resale. An S-3 is a shorter form, for issuers that qualify. It is often a shelf: shares are registered in advance.

A 424B is a prospectus supplement. It takes shares off that shelf and writes the terms of a sale: number, price or method, sellers. The S-3 opens the possibility. The 424B describes one use.

Read the document

The form code is not the content. Two 424B filings can describe a firm sale, an ATM, or warrants. You open the filing.

EDGAR publishes the text. A line on a scanner says a filing exists. It does not replace the prospectus pages.

This is not financial advice.

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