SEPTInvestingStart Free
Stocks/MSFT/SEC Filings/424B2 Oct 29, 2026

MSFT 424B2: Shelf registration

Microsoft Corporation

Filed with the SEC on Oct 29, 2026 · accession 0001193125-26-437008

MSFT filed a 424B2 (prospectus (offering)) with the SEC on Oct 29, 2026. Microsoft Corporation filed a preliminary prospectus supplement for a multi-tranche offering of senior unsecured notes, including floating rate and fixed rate notes with various maturities. The stock moved -0.2% by the first close after the filing.

Summary of the filing

Microsoft Corporation filed a preliminary prospectus supplement for a multi-tranche offering of senior unsecured notes, including floating rate and fixed rate notes with various maturities. The offering amounts, interest rates, and maturity dates are left blank in this preliminary filing.

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

Key details

IssuerMicrosoft Corporation
Joint book-running managerJ.P. Morgan
Joint book-running managerUBS Investment Bank
Joint book-running managerWells Fargo Securities

How MSFT stock reacted

Close before

$531.01

Oct 28, 2026

First close after

-0.16%

$530.14

5 trading days

+4.67%

$555.80

Since filing

+0.93%

$535.93

✦ Ask GOAX AI about this filing — what it means for MSFT, what changed since its last filings and what to watch next.

Try it free for 7 days

🔔 Want to stay updated on new SEC filings for MSFT?

Click here

Frequently asked questions

What did MSFT file with the SEC on Oct 29, 2026?

MSFT filed a 424B2 (Shelf registration). Microsoft Corporation filed a preliminary prospectus supplement for a multi-tranche offering of senior unsecured notes, including floating rate and fixed rate notes with various maturities. The offering amounts, interest rates, and maturity dates are left blank in this preliminary filing.

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

MSFT closed at $531.01 before the filing and $530.14 on Oct 29, 2026 (-0.16%). Five trading days later: $555.80 (+4.67%).

Other MSFT SEC filings

  • 8-K · Board changeNov 5, 2026
  • 8-K · Material agreementNov 4, 2026
  • 424B2 · Secondary offeringNov 2, 2026
  • 8-K · SEC filingOct 28, 2026
  • 10-Q · SEC filingOct 28, 2026
  • 8-K · SEC filingOct 28, 2026
  • DEF 14A · SEC filingOct 21, 2026
  • 8-K · SEC filingSep 2, 2026
  • 8-K · SEC filingJul 29, 2026
  • 10-K · SEC filingJul 29, 2026

Get alerts when MSFT files with the SEC, plus live charts, key levels and news for 13,000+ stocks.

Try SEPT free for 7 days
MSFT overviewMSFT analysisMSFT newsLatest SEC filings
Source: SEC EDGAR filing 0001193125-26-437008. 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.