Costar v. Under Armour, Inc
Costar v. Under Armour, Inc is a federal federal tax / statutory actions lawsuit filed on 02/03/2026 in the District Court, D. Maryland. The case is currently open in the federal court system.
- Court
- District Court, D. Maryland (D. Maryland)
Official Court Website → - Assigned judge
- Chelsea J. Crawford · 23 cases in index
- Docket number
- 1:26-cv-00427
- Cause
- 28:1332 Diversity-Other Contract
28 U.S.C. § 1332 — Diversity jurisdiction - Nature of suit
- 890 Other Statutory Actions
Federal statutory claims not covered by a more specific category. - Jurisdiction
- Federal Question
- Jury demand
- Plaintiff
- Date filed
- 02/03/2026
5,869 Federal Tax / Statutory Actions cases in this court are indexed here.
Parties
- plaintiff · Costar
- defendant · Under Armour, Inc Textiles & Apparel · 89 cases
Part of a Larger Litigation Pattern
This is one of 90 Federal Tax / Statutory Actions cases in our index naming Under Armour, Inc — a possible mass-tort or coordinated-litigation cluster.
About Federal Tax / Statutory Actions Lawsuits
This group covers federal tax disputes and other statutory actions, including IRS-related suits and claims arising under various federal regulatory statutes.
Frequently Asked Questions
What is Costar v. Under Armour, Inc?
Costar v. Under Armour, Inc is a federal federal tax / statutory actions lawsuit filed on 02/03/2026 in the District Court, D. Maryland. The case is currently open in the federal court system. This group covers federal tax disputes and other statutory actions, including IRS-related suits and claims arising under various federal regulatory statutes.
What type of case is this?
It is classified as “Federal Tax / Statutory Actions” under the federal nature-of-suit system. This group covers federal tax disputes and other statutory actions, including IRS-related suits and claims arising under various federal regulatory statutes.
What court is the case in?
The case is in the District Court, D. Maryland, docket number 1:26-cv-00427.
When was the case filed?
Costar v. Under Armour, Inc was filed on 02/03/2026. The case is currently open.
What law is the case brought under?
The docket lists the cause as 28 U.S.C. § 1332 — Diversity jurisdiction.
Other Cases Involving These Parties
Related Federal Tax / Statutory Actions Cases
Source: public U.S. federal court record (docket 72224379).