Mergers: Supreme Court decisions

Every U.S. Supreme Court decision from the 1946 through 2025 Terms that the Supreme Court Database classifies under the issue “Mergers,” part of the Economic Activity area.

Legal provisions most often involved

All 54 decisions, newest first

• Emulex Corp. v. Varjabedian
  139 S. Ct. 1407Decided April 23, 20199–0Per curiam
• California v. American Stores Co.
  495 U.S. 271Decided April 30, 19909–0John Paul Stevens
• Cargill, Inc. v. Monfort of Colorado, Inc.
  479 U.S. 104Decided December 9, 19866–2William J. Brennan Jr.
• Northeast Bancorp, Inc. v. Board of Governors of the Federal Reserve System
  472 U.S. 159Decided June 10, 19858–0William H. Rehnquist
• Board of Governors of the Federal Reserve System v. First Lincolnwood Corp.
  439 U.S. 234Decided December 11, 19787–2Thurgood Marshall
• E.I. Du Pont de Nemours & Co. v. Collins
  432 U.S. 46Decided June 16, 19777–1Warren E. Burger
• United States v. American Building Maintenance Industries
  422 U.S. 271Decided June 24, 19756–3Potter Stewart
• United States v. Citizens & Southern National Bank
  422 U.S. 86Decided June 17, 19756–3Potter Stewart
• United States v. ITT Continental Baking Co.
  420 U.S. 223Decided February 19, 19755–4William J. Brennan Jr.
• United States v. Marine Bancorporation, Inc.
  418 U.S. 602Decided June 26, 19745–3Lewis F. Powell Jr.
• United States v. Connecticut National Bank
  418 U.S. 656Decided June 26, 19745–4Lewis F. Powell Jr.
• United States v. General Dynamics Corp.
  415 U.S. 486Decided March 19, 19745–4Potter Stewart
• United States v. Falstaff Brewing Corp.
  410 U.S. 526Decided February 28, 19735–2Byron R. White
• United States v. First National Bancorporation, Inc.
  410 U.S. 577Decided February 28, 19734–4
• Port of Portland v. United States
  408 U.S. 811Decided June 29, 19727–0Harry A. Blackmun
• Ford Motor Co. v. United States
  405 U.S. 562Decided March 29, 19725–2William O. Douglas
• United States v. Greater Buffalo Press, Inc.
  402 U.S. 549Decided June 1, 19719–0William O. Douglas
• United States v. Armour & Co.
  402 U.S. 673Decided June 1, 19714–3Thurgood Marshall
• United States v. Phillipsburg National Bank & Trust Co.
  399 U.S. 350Decided June 29, 19705–2William J. Brennan Jr.
• United States v. Armour & Co.
  398 U.S. 268Decided June 1, 19705–1Per curiam
• United States v. Interstate Commerce Commission
  396 U.S. 491Decided February 2, 19707–0Warren E. Burger
• Continental Oil Co. v. United States
  393 U.S. 79Decided October 21, 19687–1Per curiam
• Securities and Exchange Commission v. New England Electric System
  390 U.S. 207Decided March 5, 19687–0William J. Brennan Jr.
• United States v. Third National Bank in Nashville
  390 U.S. 171Decided March 4, 19685–2Byron R. White
• City of Pottsville v. United States
  389 U.S. 486Decided January 15, 19687–1Abe Fortas
• United States v. Penn-Olin Chemical Co.
  389 U.S. 308Decided December 11, 19674–4
• Oscar Gruss & Son v. United States
  386 U.S. 776Decided May 8, 19679–0Per curiam
• Federal Trade Commission v. Procter & Gamble Co.
  386 U.S. 568Decided April 10, 19677–0William O. Douglas
• United States v. First City National Bank of Houston
  386 U.S. 361Decided March 27, 19678–0William O. Douglas
• Baltimore & Ohio Railroad Co. v. United States
  386 U.S. 372Decided March 27, 19675–4Tom C. Clark
• Cascade Natural Gas Corp. v. El Paso Natural Gas Co.
  386 U.S. 129Decided February 27, 19675–2William O. Douglas
• Levin v. Mississippi River Fuel Corp.
  386 U.S. 162Decided February 27, 19678–0Tom C. Clark
• United States v. Pabst Brewing Co.
  384 U.S. 546Decided June 13, 19669–0Hugo L. Black
• Federal Trade Commission v. Dean Foods Co.
  384 U.S. 597Decided June 13, 19665–4Tom C. Clark
• United States v. Von's Grocery Co.
  384 U.S. 270Decided May 31, 19666–2Hugo L. Black
• Securities and Exchange Commission v. New England Electric System
  384 U.S. 176Decided May 16, 19667–2William O. Douglas
• Seaboard Air Line Railroad Co. v. United States
  382 U.S. 154Decided November 22, 19658–0Per curiam
• Kennecott Copper Corp. v. United States
  381 U.S. 414Decided June 1, 19656–2Per curiam
• United States v. Penn-Olin Chemical Co.
  378 U.S. 158Decided June 22, 19647–2Tom C. Clark
• United States v. Continental Can Co.
  378 U.S. 441Decided June 22, 19647–2Byron R. White
• United States v. Aluminum Co. of America
  377 U.S. 271Decided June 1, 19646–3William O. Douglas
• United States v. Continental Oil Co.
  377 U.S. 161Decided May 4, 19648–1Per curiam
• United States v. First National Bank & Trust Co. of Lexington
  376 U.S. 665Decided April 6, 19647–2William O. Douglas
• United States v. El Paso Natural Gas Co.
  376 U.S. 651Decided April 6, 19647–1William O. Douglas
• United States v. Philadelphia National Bank
  374 U.S. 321Decided June 17, 19636–2William J. Brennan Jr.
• Gilbertville Trucking Co., Inc. v. United States
  371 U.S. 115Decided December 3, 19629–0Earl Warren
• Brown Shoe Co., Inc. v. United States
  370 U.S. 294Decided June 25, 19627–0Earl Warren
• California v. Federal Power Commission
  369 U.S. 482Decided April 30, 19625–2William O. Douglas
• United States v. E. I. Du Pont de Nemours & Co.
  366 U.S. 316Decided May 22, 19614–3William J. Brennan Jr.
• Brotherhood of Maintenance of Way Employes v. United States
  366 U.S. 169Decided May 1, 19618–1Earl Warren
• Maryland and Virginia Milk Producers Association, Inc. v. United States
  362 U.S. 458Decided May 2, 19609–0Hugo L. Black
• Minneapolis & St. Louis Railway Co. v. United States
  361 U.S. 173Decided December 14, 19598–1Charles E. Whittaker
• International Boxing Club of New York, Inc. v. United States
  358 U.S. 242Decided January 12, 19595–3Tom C. Clark
• United States v. Columbia Steel Co.
  334 U.S. 495Decided June 7, 19485–4Stanley F. Reed

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