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Mary Kathleen Costello

Judge · U.S. District Court for the Eastern District of Pennsylvania

Last updated October 7, 2026

Analytics

The published one-year federal docket dataset through 2026-06-30 records 186 cases assigned to this judge and 7 terminated cases. Explore analytics

Service record and verification

Judicial service and assignments

Appointment and verification

Appointment method
Presidential appointment with Senate confirmation
Appointing authority
Joseph R. Biden
Source authority
Federal Judicial Center Biographical Directory

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