One William Street Capital Master Fund Ltd

About One William Street Capital Master Fund Ltd

One William Street Capital Master Fund Ltd appears in federal litigation as a corporation. This profile tracks recent cases, court activity, and related entities tied to this party.

Case Portfolio

Distribution of case types handled by One William Street Capital Master Fund Ltd.

civil 2 cases

{# Litigation Exposure — 4 stat tiles so the reader sees docket posture (active / total / last 12mo / plaintiff share) at a glance. #} {# Plaintiff vs Defendant split — the single bar that tells a reader whether this company sues people or gets sued. #}

Litigation by Case Type

civil 2 cases

timeline Recent Litigation Events

order Apr 20, 2026

5:26-cv-01123 Sharma v. United States Citizenship and Immigration Services

TAJIMIER INC. v. PENNROSE MANAGEMENT COMPANY, LLC et al

motion Apr 20, 2026

1:26-cv-01123 One William Street Capital Master Fund Ltd. et al v. Wilmington Trust, National Association et al

TAJIMIER INC. v. PENNROSE MANAGEMENT COMPANY, LLC et al

order Apr 17, 2026

1:26-cv-01622 Ramirez Salcedo v. Mullin et al

Spreng v. FitJoy, Inc.

other Apr 17, 2026

1:26-cv-01123 AMERICAN ALLIANCE FOR EQUAL RIGHTS v. CONGRESSIONAL BLACK CAUCUS FOUNDATION

TAJIMIER INC. v. PENNROSE MANAGEMENT COMPANY, LLC et al

other Apr 17, 2026

1:26-cv-01622 One William Street Capital Master Fund Ltd. et al v. JPMorgan Chase Bank, National Association et al

Spreng v. FitJoy, Inc.

other Apr 16, 2026

5:26-cv-01622 Spreng v. FitJoy, Inc.

Spreng v. FitJoy, Inc.

order Apr 15, 2026

1:26-cv-01123 Saehler et al v. Polis et al

TAJIMIER INC. v. PENNROSE MANAGEMENT COMPANY, LLC et al

order Apr 14, 2026

2:26-cv-01123 TAJIMIER INC. v. PENNROSE MANAGEMENT COMPANY, LLC et al

TAJIMIER INC. v. PENNROSE MANAGEMENT COMPANY, LLC et al