Depositary shares prospectus addendum — Morgan Stanley (NYSE: MS) April 8, 2026

Rhea-AI Filing Summary

Morgan Stanley filed a prospectus addendum for depositary shares each representing 1/1,000th of a share of Floating Rate Non-Cumulative Preferred Stock, Series A. The addendum directs readers to the prospectus dated April 8, 2026 and states that Morgan Stanley & Co. LLC may use the addendum for market-making offers and sales.

Key Figures

Registration Number: 333-293641 Share Fraction: 1/1,000th of a share Prospectus Date: April 8, 2026

3 metrics

Registration Number 333-293641 Prospectus addendum cover page

Share Fraction 1/1,000th of a share Each depositary share represents this fraction of Series A preferred

Prospectus Date April 8, 2026 Accompanying prospectus date referenced by the addendum

Key Terms

Depositary shares, Floating Rate Non-Cumulative Preferred Stock, Prospectus addendum, Market-making transactions

4 terms

Depositary shares financial

"DEPOSITARY SHARES EACH REPRESENTING 1/1,000TH OF A SHARE"

Depositary shares are tradable certificates that represent a fractional piece of a larger security held by a third-party bank, like owning a slice of a single big pie instead of the whole pie. They let companies issue and investors buy smaller, more affordable portions of preferred stock or other instruments; holders usually receive proportional dividends and market pricing similar to ordinary shares, but may have limited voting rights and different liquidity or tax implications, which can affect income and resale value.

Floating Rate Non-Cumulative Preferred Stock financial

"FLOATING RATE NON-CUMULATIVE PREFERRED STOCK, SERIES A"

Prospectus addendum regulatory

"Prospectus Addendum to the Prospectus dated April 8, 2026"

Market-making transactions market

"will, and other affiliates of Morgan Stanley may, use this prospectus addendum in connection with offers and sales...in market-making transactions"

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Accepted by SEC EDGAR 04/08/2026 - 11:26 AM Learn about SEC filing dates

FAQ

What does Morgan Stanley's prospectus addendum say about the depositary shares (MS)?

The addendum states the offering covers depositary shares representing 1/1,000th of a share of Series A floating-rate preferred stock. It refers investors to the prospectus dated April 8, 2026 for full terms and use in market-making transactions.

Will Morgan Stanley receive proceeds from sales under this prospectus addendum (MS)?

The addendum does not state proceeds treatment. It notes Morgan Stanley & Co. LLC will act in market-making transactions and directs readers to the accompanying prospectus supplement for specific terms and proceeds details.

Are these depositary shares bank deposits or FDIC insured (MS)?

No. The addendum explicitly states the depositary shares are not deposits or savings accounts and are not insured by the FDIC or any governmental agency and are not bank obligations or guarantees.

Which document supersedes prior prospectus language for this offering (MS)?

The addendum states the prospectus dated April 8, 2026 supersedes the prospectus dated January 25, 2006, and references in the supplement to the 2006 prospectus should instead refer to the April 8, 2026 prospectus.

Filed Pursuant to Rule 424(b)(3)
Registration Statement No. 333-293641

Prospectus Addendum to

the Prospectus dated April 8, 2026

DEPOSITARY SHARES
EACH REPRESENTING 1/1,000^TH OF A SHARE OF
FLOATING RATE NON-CUMULATIVE PREFERRED STOCK, SERIES A

You should read the accompanying prospectus supplement, which gives the specific terms of the offered depositary shares, together with the accompanying prospectus dated April 8, 2026 of Morgan Stanley. When you read the prospectus supplement with the specific terms of the offered depositary shares, please note that all references in the prospectus supplement to the prospectus dated January 25, 2006, or to any sections of that document, should refer instead to the accompanying prospectus dated April 8, 2026, or to the corresponding section of the accompanying prospectus.

The accompanying prospectus dated April 8, 2026 supersedes the prospectus dated January 25, 2006.

Morgan Stanley & Co. LLC will, and other affiliates of Morgan Stanley may, use this prospectus addendum in connection with offers and sales of the depositary shares in market-making transactions.

The depositary shares are not deposits or savings accounts and are not insured by the Federal Deposit Insurance Corporation or any other governmental agency or instrumentality, nor are they obligations of, or guaranteed by, a bank.

MORGAN STANLEY

April 8, 2026