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Stocks/HSBC/SEC Filings/424B2 Nov 5, 2026

HSBC 424B2: Shelf registration

HSBC Holdings plc

Filed with the SEC on Nov 5, 2026 · accession 0001628280-26-070494

HSBC filed a 424B2 (prospectus (offering)) with the SEC on Nov 5, 2026. HSBC Holdings plc filed a preliminary prospectus supplement for an offering of perpetual subordinated contingent convertible securities (AT1 bonds) that are callable during any optional redemption period. The stock moved -1.5% by the first close after the filing.

Summary of the filing

HSBC Holdings plc filed a preliminary prospectus supplement for an offering of perpetual subordinated contingent convertible securities (AT1 bonds) that are callable during any optional redemption period. The securities are subject to automatic conversion to equity if a Capital Adequacy Trigger Event occurs.

For details, click here →How to read a 424B2 →

Key details

IssuerHSBC Holdings plc

How HSBC stock reacted

Close before

$89.37

Nov 4, 2026

First close after

-1.47%

$88.06

5 trading days

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Since filing

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Frequently asked questions

What did HSBC file with the SEC on Nov 5, 2026?

HSBC filed a 424B2 (Shelf registration). HSBC Holdings plc filed a preliminary prospectus supplement for an offering of perpetual subordinated contingent convertible securities (AT1 bonds) that are callable during any optional redemption period. The securities are subject to automatic conversion to equity if a Capital Adequacy Trigger Event occurs.

What does a shelf registration mean for HSBC stock?

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

How do I read a 424B2?

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 424B2 (prospectus (offering)): The final terms of an offering of shares or bonds.

How did HSBC stock react to this filing?

HSBC closed at $89.37 before the filing and $88.06 on Nov 5, 2026 (-1.47%).

Other HSBC SEC filings

  • SC TO-I · Tender offerNov 5, 2026
  • 6-K · BuybackNov 4, 2026
  • 6-K · Material agreementNov 3, 2026
  • 6-K · BuybackNov 3, 2026
  • 6-K · SEC filingNov 3, 2026
  • 6-K · BuybackNov 2, 2026
  • 6-K · Insider sale plannedOct 30, 2026
  • 6-K · BuybackOct 30, 2026
  • 6-K · SEC filingOct 30, 2026
  • 6-K · SEC filingOct 30, 2026

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Source: SEC EDGAR filing 0001628280-26-070494. The summary and key details are extracted by SEPT from the filing and may contain errors. Price reaction uses daily closing prices. Not financial advice.