Company · Investment Banking & Securities

Sei Investments Company

Federal civil lawsuits naming Sei Investments Company, a Investment Banking & Securities company.

Public CompanyInvestment Banking & Securities

Ticker: Nasdaq: SEIC
Business: Security Brokers, Dealers & Flotation Companies
Headquarters: Oaks, PA
Incorporated in: Pennsylvania
SEC CIK: 350894

Sei Investments Company is a public company in Security Brokers, Dealers & Flotation Companies, based in Oaks, PA (traded on Nasdaq as SEIC, incorporated in Pennsylvania). It appears in 18 federal civil lawsuits in this index, most often as a defendant (11 of 18). These cases are most often Contract and Civil Rights matters, filed between 2001 and 2025, most frequently in District Court, E.D. Pennsylvania. The most common causes of action are Employment Discrimination, ERISA, and Breach of Contract. A frequent opposing party is Drapeau.

Lawsuits

As Defendant

As Plaintiff

Open

Terminated

2001–2025

Span

9 mo

Median Duration

0.7 cases/yrNamed as defendant in 61% of cases44% ContractRecent filings down

Cases by State

Open Cases Over Time

2001peak 4 open2025

Case Types Over Time

20012025

ContractCivil RightsProduct LiabilityCopyrightFederal Tax / Statutory Actions

Filings by Year

20012025

Case Types filter →

Federal Tax / Statutory Actions1

Labor1

Where Filed filter →

Frequent Opposing Parties

Drapeau2

18 Cases — Newest First

Hall v. Sei Investments Company

Federal Tax / Statutory Actions Open District Court, E.D. PennsylvaniaNo. 2:25-cv-07341Filed 12/26/2025
Stevens v. Sei Investments Company

Labor Terminated District Court, E.D. PennsylvaniaNo. 2:18-cv-04205Filed 09/28/2018
Drapeau v. Sei Investments Distribution Co

Product Liability Terminated District Court, D. VermontNo. 5:18-cv-00119Filed 07/24/2018
Drapeau v. Sei Investments Distribution Co

Product Liability Open District Court, D. VermontNo. 2:18-cv-00119Filed 07/24/2018
Sei Investments Company v. Lumley

Contract Terminated District Court, E.D. PennsylvaniaNo. 2:18-cv-02978Filed 07/17/2018
Aburub v. Sei Investments Company

Civil Rights Terminated District Court, E.D. PennsylvaniaNo. 2:16-cv-03875Filed 07/19/2016
Sei Investments Global Funds Services v. Citibank, N.A

Contract Terminated District Court, E.D. PennsylvaniaNo. 2:14-cv-05972Filed 10/20/2014
Curd v. Sei Investments Management Corporation

Contract Terminated District Court, E.D. PennsylvaniaNo. 2:13-cv-07219Filed 12/11/2013
Sei Investments Company v. Phillips

Contract Terminated District Court, E.D. PennsylvaniaNo. 2:13-cv-03016Filed 05/31/2013
Greshem v. Sei Investments Company

Securities / Commodities Terminated District Court, N.D. TexasNo. 3:09-cv-02406Filed 12/17/2009
Sei Investments Company v. Menard

Contract Terminated District Court, E.D. PennsylvaniaNo. 2:05-cv-03502Filed 07/08/2005
Sei Investments Company, Inc v. Hedge Fund Dynamics

Copyright Terminated District Court, E.D. PennsylvaniaNo. 2:03-cv-06216Filed 11/12/2003
Liebeskind v. Sei Investments Company

Civil Rights Terminated District Court, E.D. PennsylvaniaNo. 2:03-cv-03244Filed 05/22/2003
Sei Investments v. Pragma Hedge Fund

Contract Terminated District Court, S.D. New YorkNo. 1:03-cv-00406Filed 01/17/2003
Striegel v. Sei Investments Company

Civil Rights Terminated District Court, E.D. PennsylvaniaNo. 2:02-cv-08486Filed 11/15/2002
Sei Investments Co v. Barber

Contract Terminated District Court, S.D. New YorkNo. 1:02-cv-06184Filed 08/02/2002
Collier v. Sei Investments Company

Civil Rights Terminated District Court, E.D. PennsylvaniaNo. 2:02-cv-03574Filed 06/04/2002
Riggs Bank N.A v. Sei Investments

Contract Terminated District Court, D. MarylandNo. 8:01-cv-01420Filed 05/16/2001