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LUV 424B5: Shelf registration

Southwest Airlines Co.

Filed with the SEC on · accession 0001193125-26-431199

LUV filed a 424B5 (prospectus (offering)) with the SEC on Oct 26, 2026. Southwest Airlines Co. filed a preliminary prospectus supplement for an offering of senior unsecured notes in two series with varying maturities. The stock moved +2.6% by the first close after the filing.

Summary of the filing

Southwest Airlines Co. filed a preliminary prospectus supplement for an offering of senior unsecured notes in two series with varying maturities. The notes are unsecured and unsubordinated obligations, with proceeds intended for general corporate purposes.

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

Key details

IssuerSouthwest Airlines Co.
UnderwriterBarclays
UnderwriterBNP PARIBAS
UnderwriterStandard Chartered Bank
UnderwriterUS Bancorp
UnderwriterWells Fargo Securities
UnderwriterBofA Securities
UnderwriterCitigroup
UnderwriterGoldman Sachs & Co. LLC
UnderwriterJ.P. Morgan
UnderwriterMorgan Stanley
UnderwriterPNC Capital Markets LLC

How LUV stock reacted

Close before

$41.75

Oct 23, 2026

First close after

+2.63%

$42.85

5 trading days

+1.63%

$42.43

Since filing

+6.47%

$44.45

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Frequently asked questions

What did LUV file with the SEC on Oct 26, 2026?

LUV filed a 424B5 (Shelf registration). Southwest Airlines Co. filed a preliminary prospectus supplement for an offering of senior unsecured notes in two series with varying maturities. The notes are unsecured and unsubordinated obligations, with proceeds intended for general corporate purposes.

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

LUV closed at $41.75 before the filing and $42.85 on Oct 26, 2026 (+2.63%). Five trading days later: $42.43 (+1.63%).

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