Public court records · Regulatory sources · Independently maintained Data as of: 2026-09-29 · Not legal advice

Microsoft

tech platform · Ticker: MSFT · 2 tracked matters · Last verified:

About the company

The company profile is sourced from neutral references (Wikipedia, official filings) so this page stays a reference, not an opinion. Our own coverage is in the regulatory history and cases below.

Violations & regulatory history

DateRegulatorTypeFine
Apr 3, 2000U.S. District Court, D.D.C.Antitrust liability findings (browser market)
In United States v. Microsoft (D.D.C.), the court found Microsoft maintained a monopoly in Intel-compatible PC operating systems and unlawfully tied Internet Explorer; the D.C. Circuit affirmed liability in 2001 and the case settled in 2001–2002 (per court records).
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Cases we track

Frequently asked questions

What cases is Microsoft involved in?

We currently track 2 matters involving Microsoft: Microsoft Operating-System Monopoly (US v. Microsoft, 1998–2002); OpenAI Copyright Infringement (MDL 3143). Each links to the full case record with court, status and settlement information.

What has the regulator found about Microsoft?

Our regulatory history table lists 1 recorded item — actions, settlements and penalties with the regulator, date and amount where published. Every row links to its source.

Where does the Microsoft information come from?

Company profiles are sourced from neutral references: Wikipedia, official company websites and filings, and regulator records. Our own coverage is the regulatory history table and the case links below.

Affected by Microsoft products?

Check the case record and start a free review on the relevant case page: Microsoft Operating-System Monopoly (US v. Microsoft, 1998–2002) → OpenAI Copyright Infringement (MDL 3143) →