Bell Atlantic Corporation v. William Twombly

550 U.S. 544 · Decided May 21, 2007 · Supreme Court of the United States

At a glance

Bell Atlantic Corporation v. William Twombly was decided on May 21, 2007 by a vote of 7–2. The Court reversed the lower court's decision and remanded the case. Justice David H. Souter wrote the opinion of the Court. SCDB classifies its main issue as “Antitrust” in the Economic Activity area. SCDB codes this decision as formally altering one or more of the Court's own precedents.

Read the opinion

• CourtListener (Free Law Project) — opinion text
• Library of Congress — official U.S. Reports scan

Case details

How the Justices voted

Full case caption

Bell Atlantic Corporation, et al. v. William Twombly, et al.

SCDB identifiers: case 2006-045, docket 2006-045-01.

Related decisions

Other cases on “Antitrust”

• Credit Suisse Securities (USA) LLC v. Glen Billing
  551 U.S. 264Decided June 18, 20077–1Stephen G. Breyer
• Leegin Creative Leather Products, Inc. v. PSKS, Inc.Altered precedent
  551 U.S. 877Decided June 28, 20075–4Anthony M. Kennedy
• Weyerhaeuser Company v. Ross-Simmons Hardwood Lumber Company, Inc.
  549 U.S. 312Decided February 20, 20079–0Clarence Thomas
• Illinois Tool Works Inc. v. Independent Ink, Inc.Altered precedent
  547 U.S. 28Decided March 1, 20068–0John Paul Stevens
• Texaco Inc. v. Fouad N. Dagher
  547 U.S. 1Decided February 28, 20068–0Clarence Thomas
• Volvo Trucks North America, Inc. v. Reeder-Simco GMC, Inc.
  546 U.S. 164Decided January 10, 20067–2Ruth Bader Ginsburg

See all

Cases on the same legal provision: Sherman Act

• Federal Trade Commission v. Actavis, Inc.
  570 U.S. 136Decided June 17, 20135–3Stephen G. Breyer
• Federal Trade Commission v. Superior Court Trial Lawyers Association
  493 U.S. 411Decided January 22, 19906–3John Paul Stevens
• Rice v. Norman Williams Co.
  458 U.S. 654Decided July 1, 19829–0William H. Rehnquist
• Zenith Radio Corp. v. Hazeltine Research, Inc.
  395 U.S. 100Decided May 19, 19697–1Byron R. White
• United Mine Workers of America v. Pennington
  381 U.S. 657Decided June 7, 19659–0Byron R. White
• Local Union No. 189 v. Jewel Tea Co., Inc.
  381 U.S. 676Decided June 7, 19656–3Byron R. White

Same Term, same area (Economic Activity)

• Norfolk Southern Railway Company v. Timothy Sorrell
  549 U.S. 158Decided January 10, 20079–0John G. Roberts Jr.
• Weyerhaeuser Company v. Ross-Simmons Hardwood Lumber Company, Inc.
  549 U.S. 312Decided February 20, 20079–0Clarence Thomas
• Philip Morris USA v. Mayola Williams
  549 U.S. 346Decided February 20, 20075–4Stephen G. Breyer
• Robert Louis Marrama v. Citizens Bank of Massachusetts
  549 U.S. 365Decided February 21, 20075–4John Paul Stevens
• Rockwell International Corp. v. United States
  549 U.S. 457Decided March 27, 20076–2Antonin Scalia
• Alicia G. Limtiaco v. Felix P. Camacho
  549 U.S. 483Decided March 27, 20075–4Clarence Thomas

See all

Source: Supreme Court Database, 2026 Release 01 (data file dated September 8, 2026). Imported into CaseTrail November 5, 2026. Coverage: decisions from the 1946 through 2025 Terms. Methodology · Report an error