Antitrust injury is a concept in antitrust law that limits standing to those who have suffered an "injury of the type the antitrust laws were intended to prevent and that flows from that which makes defendants' acts unlawful." Brunswick Corp. v. Pueblo Bowl-O-Mat, Inc., 429 U.S. 477, 489 (1977). "It should, in short, be 'the type of loss that the claimed violations… would be likely to cause.'" Id. (quoting Radio Corp. v. Hazeltine Research, 395 U.S. at 125.).
An overview of antitrust injury is provided at Daniel v. Am. Bd. of Emergency Med., 428 F.3d 408, 441 (2d Cir. 2005).