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IN THE UNITED STATES DISTRICT COURT 

FOR THE EASTERN DISTRICT OF TEXAS 

MARSHALL DIVISION

HEADWATER RESEARCH LLC, 

Plaintiff, 

v. 

T-MOBILE US, INC., T-MOBILE USA, INC., 

and SPRINT CORP., 

Defendants. 

CIVIL ACTION NO. 2:23-CV-00377 

DEFENDANTS’ CORPORATE DISCLOSURE STATEMENT PURSUANT TO 

FEDERAL OF CIVIL PROCEDURE 7.1 

Pursuant to Federal Rule of Civil Procedure 7.1, Defendants submit the following 

Corporate Disclosure Statement: 

T-Mobile USA, Inc., a Delaware corporation, is a wholly owned subsidiary of T-Mobile 

US, Inc., a Delaware corporation. T-Mobile US, Inc. (NASDAQ: TMUS) is a publicly traded 

company listed on the NASDAQ Global Select Market of NASDAQ Stock Market LLC. Deutsche 

Telekom Holding B.V., a limited liability company (besloten vennotschap met beperkte 

aansprakelijkheidraies) organized and existing under the laws of the Netherlands, owns more than 

10 percent of T-Mobile US, Inc.’s stock. Deutsche Telekom Holding B.V. is a direct, wholly 

owned subsidiary of T-Mobile Global Holding GmbH, a Gesellschaft mit beschränkter Haftung 

organized and existing under the laws of the Federal Republic of Germany. Deutsche Telekom 

Holding B.V. is a direct, wholly owned subsidiary of T-Mobile Global Zwischenholding GmbH, 

a Gesellschaft mit beschränkter Haftung organized and existing under the laws of the Federal 

Republic of Germany. Deutsche Telekom Holding B.V is a direct, wholly owned subsidiary of 

Case 2:23-cv-00377-JRG-RSP Document 32 Filed 11/02/23 Page 1 of 4 PageID #: 338
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Deutsche Telekom AG, an Aktiengesellschaft organized and existing under the laws of the Federal 

Republic of Germany. Deutsche Telekom AG’s shares are traded on “Xetra” and the Frankfurt, 

Berlin, Düsseldorf, Hamburg, Hannover, Muchen, and Stuttgart stock exchanges in Germany. 

Deutsche Telekom AG’s American Depository Shares, each representing one ordinary share, trade 

on the OTC market’s highest tier, OTCQX International Premier (“DTEGY”). 

Sprint Corp., now known as Sprint LLC, is a wholly owned subsidiary of T-Mobile USA, 

Inc., which is a wholly-owned subsidiary of T-Mobile US, Inc. T-Mobile US, Inc. (NASDAQ: 

TMUS) is a publicly traded company listed on the NASDAQ Global Select Market of NASDAQ 

Stock Market LLC. 

Case 2:23-cv-00377-JRG-RSP Document 32 Filed 11/02/23 Page 2 of 4 PageID #: 339
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Dated: November 2, 2023 

/s/ Katherine Q. Dominguez

Katherine Q. Dominguez 

kdominguez@gibsondunn.com

Josh A. Krevitt 

jkrevitt@gibsondunn.com 

Brian Rosenthal 

brosenthal@gibsondunn.com

GIBSON, DUNN & CRUTCHER LLP

200 Park Avenue 

New York, New York 10166-0193 

Telephone: (212) 351-4000 

Facsimile: (212) 351-4015 

Robert Vincent 

rvincent@gibsondunn.com

GIBSON, DUNN & CRUTCHER LLP 

2001 Ross Avenue, Suite 2100 

Dallas, Texas 75201-2923 

Telephone: (214) 698-3100 

Facsimile: (214) 571-2900 

Andrew Robb 

arobb@gibsondunn.com

GIBSON, DUNN & CRUTCHER LLP 

310 University Avenue 

Palo Alto, California 94301 

Telephone: (650) 849-5300 

Melissa Smith 

melissa@gillamsmithlaw.com 

GILLAM & SMITH LLP 

313 S Washington Avenue 

Marshall, Texas 75670 

Telephone: (903) 934-8450 

Facsimile: (903) 934-9257 

Attorneys for Defendants 

 

Case 2:23-cv-00377-JRG-RSP Document 32 Filed 11/02/23 Page 3 of 4 PageID #: 340
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CERTIFICATE OF SERVICE 

I hereby certify that on November 2, 2023, the foregoing document was electronically 

filed with the Clerk of the Court using CM/ECF, which will send notification of this filing to all 

registered participants. 

 /s/ Katherine Q. Dominguez 

Katherine Q. Dominguez 

 

Case 2:23-cv-00377-JRG-RSP Document 32 Filed 11/02/23 Page 4 of 4 PageID #: 341