Company · Pharmaceuticals & Biotechnology

Supernus Pharmaceuticals, Inc

Federal civil lawsuits naming Supernus Pharmaceuticals, Inc, a Pharmaceuticals & Biotechnology company.

Public CompanyPharmaceuticals & Biotechnology

Ticker: Nasdaq: SUPN
Business: Pharmaceutical Preparations
Headquarters: Rockville, MD
Incorporated in: Delaware
SEC CIK: 1356576

Supernus Pharmaceuticals, Inc is a public company in Pharmaceutical Preparations, based in Rockville, MD (traded on Nasdaq as SUPN, incorporated in Delaware). It appears in 37 federal civil lawsuits in this index, most often as a plaintiff (35 of 37). These cases are most often Patent - ANDA and Patent matters, filed between 2012 and 2026, most frequently in District Court, D. New Jersey. The most common causes of action are Patent Infringement, Securities, and Antitrust. Frequent opposing parties include Actavis, Inc, Zydus Pharmaceuticals (USA) Inc, and Riconpharma LLC.

Lawsuits

As Defendant

As Plaintiff

Open

Terminated

2012–2026

Span

11 mo

Median Duration

2.5 cases/yrPredominantly plaintiff · 95%Patent - ANDA-heavy · 54%Activity steady

Cases by State

Open Cases Over Time

2012peak 10 open2026

Case Types Over Time

20122026

Patent - ANDAPatentAntitrustRICO / Consumer / Other StatutesSecurities / Commodities

Filings by Year

20122026

Case Types filter →

Patent - ANDA20

Patent15

Antitrust1

RICO / Consumer / Other Statutes1

Securities / Commodities1

Where Filed filter →

Frequent Opposing Parties

37 Cases — Newest First

Supernus Pharmaceuticals, Inc v. Zydus Lifesciences Global Fze

Patent - ANDA Open District Court, D. New JerseyNo. 2:26-cv-03543Filed 04/02/2026
Supernus Pharmaceuticals, Inc v. Creekwood Pharmaceuticals, LLC

Patent - ANDA Open District Court, D. DelawareNo. 1:25-cv-00880Filed 07/15/2025
Supernus Pharmaceuticals, Inc v. Zenara Pharma Private Limited

Patent - ANDA Open District Court, D. New JerseyNo. 2:25-cv-13207Filed 07/11/2025
Supernus Pharmaceuticals, Inc v. Aurobindo Pharma Limited

Patent - ANDA Open District Court, D. DelawareNo. 1:25-cv-00808Filed 07/01/2025
Supernus Pharmaceuticals, Inc v. Appco Pharma LLC

Patent - ANDA Terminated District Court, D. DelawareNo. 1:25-cv-00807Filed 07/01/2025
Supernus Pharmaceuticals, Inc v. Appco Pharma LLC

Patent - ANDA Open District Court, D. New JerseyNo. 2:25-cv-12183Filed 06/26/2025
Supernus Pharmaceuticals, Inc v. Aurobindo Pharma Ltd

Patent - ANDA Terminated District Court, D. New JerseyNo. 1:24-cv-09380Filed 09/23/2024
Supernus Pharmaceuticals, Inc v. Ascent Pharmaceuticals Inc

Patent - ANDA Terminated District Court, D. New JerseyNo. 3:23-cv-04015Filed 07/26/2023
Supernus Pharmaceuticals, Inc v. Ajanta Pharma Limited

Patent - ANDA Terminated District Court, D. DelawareNo. 1:22-cv-01431Filed 10/28/2022
Supernus Pharmaceuticals, Inc v. Riconpharma LLC

Patent - ANDA Terminated District Court, D. New JerseyNo. 2:22-cv-06340Filed 10/28/2022
Sage Chemical, Inc v. Supernus Pharmaceuticals, Inc

Antitrust Open District Court, D. DelawareNo. 1:22-cv-01302Filed 10/03/2022
Supernus Pharmaceuticals, Inc v. Dr. Reddy'S Laboratories, Ltd

Patent - ANDA Terminated District Court, D. New JerseyNo. 3:22-cv-04705Filed 07/22/2022
Supernus Pharmaceuticals, Inc v. Alkem Laboratories Ltd

Patent Terminated District Court, N.D. IllinoisNo. 1:22-cv-03511Filed 07/06/2022
Supernus Pharmaceuticals, Inc v. Apotex Inc

Patent - ANDA Terminated District Court, D. New JerseyNo. 3:22-cv-00322Filed 01/24/2022
Supernus Pharmaceuticals, Inc v. Zydus Pharmaceuticals (USA) Inc

Patent - ANDA Terminated District Court, S.D. New YorkNo. 1:21-cv-07795Filed 09/17/2021
Supernus Pharmaceuticals, Inc v. Zydus Pharmaceuticals (USA) Inc

Patent - ANDA Terminated District Court, D. New JerseyNo. 3:21-cv-17104Filed 09/17/2021
Supernus Pharmaceuticals, Inc v. Lupin Limited

Patent - ANDA Terminated District Court, D. DelawareNo. 1:21-cv-01293Filed 09/10/2021
Supernus Pharmaceuticals, Inc v. Torrent Pharmaceuticals Ltd

Patent - ANDA Terminated District Court, D. New JerseyNo. 3:21-cv-14268Filed 07/28/2021
Supernus Pharmaceuticals, Inc v. Riconpharma LLC

Patent - ANDA Terminated District Court, D. New JerseyNo. 2:21-cv-12133Filed 06/03/2021
Supernus Pharmaceuticals, Inc v. Riconpharma LLC

Patent - ANDA Open District Court, D. New JerseyNo. 3:21-cv-12133Filed 06/03/2021
Supernus Pharmaceuticals, Inc v. Ajanta Pharma Limited

Patent - ANDA Terminated District Court, D. New JerseyNo. 3:21-cv-06964Filed 03/26/2021
Supernus Pharmaceuticals, Inc v. Apotex Inc

Patent - ANDA Terminated District Court, D. New JerseyNo. 3:20-cv-07870Filed 06/26/2020
Laidlaw v. Supernus Pharmaceuticals, Inc

Securities / Commodities Terminated District Court, S.D. New YorkNo. 1:20-cv-03353Filed 04/29/2020
Alfaro v. Supernus Pharmaceuticals, Inc

RICO / Consumer / Other Statutes Terminated District Court, S.D. FloridaNo. 9:19-cv-81554Filed 11/14/2019
Supernus Pharmaceuticals, Inc v. Twi Pharmaceuticals, Inc

Patent Terminated District Court, D. New JerseyNo. 1:17-cv-02164Filed 03/31/2017
Supernus Pharmaceuticals, Inc v. Lee

Patent Terminated District Court, E.D. VirginiaNo. 1:16-cv-00342Filed 03/28/2016
Supernus Pharmaceuticals, Inc v. Actavis Inc

Patent Terminated District Court, D. New JerseyNo. 1:15-cv-08342Filed 11/25/2015
Supernus Pharmaceuticals, Inc v. Actavis Inc

Patent Terminated District Court, D. New JerseyNo. 1:15-cv-02499Filed 04/07/2015
Supernus Pharmaceuticals, Inc v. Twi Pharmaceuticals, Inc

Patent Terminated District Court, D. New JerseyNo. 1:15-cv-00369Filed 01/16/2015
Supernus Pharmaceuticals, Inc v. Par Pharmaceutical Companies, Inc

Patent Terminated District Court, D. New JerseyNo. 2:15-cv-00326Filed 01/16/2015
Supernus Pharmaceuticals, Inc v. Zydus Pharmaceuticals (USA) Inc

Patent Terminated District Court, D. New JerseyNo. 2:14-cv-07272Filed 11/21/2014
Supernus Pharmaceuticals, Inc v. Actavis, Inc

Patent Terminated District Court, D. New JerseyNo. 2:14-cv-06102Filed 10/01/2014
Supernus Pharmaceuticals, Inc v. Actavis Inc

Patent Terminated District Court, D. New JerseyNo. 1:14-cv-01981Filed 03/28/2014
Supernus Pharmaceuticals, Inc v. Actavis Inc

Patent Terminated District Court, D. New JerseyNo. 1:13-cv-04740Filed 08/07/2013
Supernus Pharmaceuticals, Inc v. Kappos

Patent Terminated District Court, E.D. VirginiaFiled 12/21/2012
Supernus Pharmaceuticals, Inc v. Lee

Patent Terminated District Court, E.D. VirginiaNo. 1:12-cv-01485Filed 12/21/2012
Supernus Pharmaceuticals, Inc v. Kappos

Patent Terminated District Court, E.D. VirginiaFiled 11/30/2012
Supernus Pharmaceuticals, Inc v. Lee

Patent Terminated District Court, E.D. VirginiaNo. 1:12-cv-01385Filed 11/30/2012