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No. 25-1388October Term 2025Petition Pending

Docket 25-1388October Term 2025 (2025–2026)

United Biologics, LLC, dba United Allergy Services, Petitioner v. Amerigroup Tennessee, Inc., dba Amerigroup Community Care, et al.

United Allergy Services alleges that allergists and health insurers conspired to force its physician customers to stop using its allergy-testing and immunotherapy services, driving the company from the market.

Case status

Current stage
Petition Pending
Latest event
Petition pending
Decision timing
No decision timeline until the Court agrees to hear the case.
Petition PendingNot granted
ArgumentsNot scheduled
Decision ReleasedNot scheduled
What it's about

United Allergy Services alleges that allergists and health insurers conspired to force its physician customers to stop using its allergy-testing and immunotherapy services, driving the company from the market. The Sixth Circuit held that the company could not recover lost-profit damages under federal antitrust law because its customers were the more direct victims, and United Allergy Services asks the Supreme Court to review that ruling.

Question presented

Whether Illinois Brick Co. v. Illinois, 431 U.S. 720 (1977), bars the intended and actual target of a group boycott from recovering lost-profit damages when market incumbents band together to coerce the target’s customers to stop doing business with the target?

Case path

United States Court of Appeals for the Sixth Circuit / Petition pending

Area

Petition for review pending

Briefing

What it's about

United Allergy Services says allergists and health insurers worked together to pressure its physician customers to stop using its allergy-testing and immunotherapy services. The company asks whether it can seek lost-profit damages even though the Sixth Circuit viewed those customers as the more direct victims.

Argument

The case has not been scheduled for oral argument. United Allergy Services argues that Illinois Brick should not block damages for the intended and actual target of the alleged boycott.

Impact

The case could determine when a business targeted by an alleged group boycott can recover its lost profits under federal antitrust law. For example, a service company that loses physician clients after alleged pressure from competitors and insurers could gain or lose a path to damages.

What is at stake in United Allergy Services?

The Court could clarify whether a company allegedly pushed from a market may recover lost profits under federal antitrust law.

Who could be affected by this antitrust dispute?

Businesses that provide services through customers, such as physicians, could be affected when competitors and insurers allegedly pressure those customers to cut ties.

What happens next in United Allergy Services?

The Court may schedule oral argument or take another scheduling action. No decision window is set yet.

Grounding

Grounding
Primary materials plus reporting.
Note
Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.
Checked
Sep 3, 2026
Primary materials6
Context reporting3