MASON CAPITAL MANAGEMENT LLC

CRD #158797 SEC #801-73255 NEW YORK, NY 212-771-1200

SEC Registered Private Funds

Total AUM

$1.8B

Discretionary

$1.5B

Employees

Clients

Accounts

Firm Details

Organization Type: Limited Liability Company
State of Formation: Delaware
Fiscal Year End: DECEMBER
Registration Date: --
Latest Filing: Apr 14, 2025
Branch Offices: 0
LEI: CYLPQ00SO09K1E63I320

Advisory Services

No services reported

Compensation Methods

No compensation methods reported

Ownership

Direct Owners & Executive Officers (Schedule A)

Name	Type	Title / Status	Ownership	Control
CONSTANTINO, DANIELA	I	ANALYST, PARTNER	NA	Control
CONSTANTINO, DANIELA	I	ANALYST, PARTNER	NA	Control
CONSTANTINO, DANIELA	I	ANALYST, PARTNER	NA	Control
CONSTANTINO, DANIELA	I	ANALYST, PARTNER	NA	Control
CONSTANTINO, DANIELA	I	ANALYST, PARTNER	NA	Control
CONSTANTINO, DANIELA	I	ANALYST, PARTNER	NA	Control
CONSTANTINO, DANIELA	I	ANALYST, PARTNER	NA	Control
CONSTANTINO, DANIELA	I	ANALYST, PARTNER	NA	Control
CONSTANTINO, DANIELA	I	ANALYST, PARTNER	NA	Control
CONSTANTINO, DANIELA	I	ANALYST, PARTNER	NA	Control
CONSTANTINO, DANIELA	I	ANALYST AND MANAGING MEMBER	NA	Control
CONSTANTINO, DANIELA	I	ANALYST AND MANAGING MEMBER	NA	Control
CONSTANTINO, DANIELA	I	ANALYST AND MANAGING MEMBER	NA	Control
CONSTANTINO, DANIELA	I	ANALYST AND MANAGING MEMBER	NA	Control
CONSTANTINO, DANIELA	I	ANALYST AND MANAGING MEMBER	NA	Control
CONSTANTINO, DANIELA	I	ANALYST AND MANAGING MEMBER	NA	Control
CONSTANTINO, DANIELA	I	ANALYST AND MANAGING MEMBER	NA	Control
CONSTANTINO, DANIELA	I	ANALYST AND MANAGING MEMBER	NA	Control
CONSTANTINO, DANIELA	I	ANALYST AND MANAGING MEMBER	NA	Control
CUTINI, MICHAEL, GEORGE	I	GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICER	NA	Control
CUTINI, MICHAEL, GEORGE	I	GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICER	NA	Control
CUTINI, MICHAEL, GEORGE	I	GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICER	NA	Control
CUTINI, MICHAEL, GEORGE	I	GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICER	NA	Control
CUTINI, MICHAEL, GEORGE	I	GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICER	NA	Control
CUTINI, MICHAEL, GEORGE	I	GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICER	NA	Control
DEMARK, ADAM, COURTLAND	I	ANALYST, PARTNER	NA	Control
DEMARK, ADAM, COURTLAND	I	ANALYST, PARTNER	NA	Control
DEMARK, ADAM, COURTLAND	I	ANALYST, PARTNER	NA	Control
DEMARK, ADAM, COURTLAND	I	ANALYST, PARTNER	NA	Control
DEMARK, ADAM, COURTLAND	I	ANALYST, PARTNER	NA	Control
DEMARK, ADAM, COURTLAND	I	ANALYST, PARTNER	NA	Control
DEMARK, ADAM, COURTLAND	I	ANALYST, PARTNER	NA	Control
DEMARK, ADAM, COURTLAND	I	ANALYST, PARTNER	NA	Control
DEMARK, ADAM, COURTLAND	I	ANALYST, PARTNER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER, PARTNER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER, PARTNER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER, PARTNER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER, PARTNER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER, PARTNER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER, PARTNER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER, PARTNER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF FINANCIAL OFFICER, PARTNER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF FINANCIAL OFFICER, PARTNER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER, PARTNER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER, PARTNER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER, PARTNER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER, PARTNER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER, CHIEF COMPLIANCE OFFICER, PARTNER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER, PARTNER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER AND MANAGING MEMBER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER AND MANAGING MEMBER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER AND MANAGING MEMBER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER AND MANAGING MEMBER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER AND MANAGING MEMBER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER AND MANAGING MEMBER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER AND MANAGING MEMBER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER AND MANAGING MEMBER	NA	Control
GRIZZETTI, JOHN, CHRISTOPHER	I	CHIEF OPERATING OFFICER AND MANAGING MEMBER	NA	Control
MACKNIGHT, DAVID, SCOTT	I	ANALYST, PARTNER	NA	Control
MACKNIGHT, DAVID, SCOTT	I	ANALYST, PARTNER	NA	Control
MACKNIGHT, DAVID, SCOTT	I	ANALYST, PARTNER	NA	Control
MACKNIGHT, DAVID, SCOTT	I	ANALYST, PARTNER	NA	Control
MACKNIGHT, DAVID, SCOTT	I	ANALYST, PARTNER	NA	Control
MACKNIGHT, DAVID, SCOTT	I	ANALYST, PARTNER	NA	Control
MACKNIGHT, DAVID, SCOTT	I	ANALYST, PARTNER	NA	Control
MASON CAPITAL HOLDINGS LP	DE	MANAGING MEMBER	NA	Control
MASON CAPITAL HOLDINGS LP	DE	MANAGING MEMBER	NA	Control
MASON CAPITAL HOLDINGS LP	DE	MANAGING MEMBER	NA	Control
MASON CAPITAL HOLDINGS LP	DE	MANAGING MEMBER	NA	Control
MASON CAPITAL HOLDINGS LP	DE	MANAGING MEMBER	NA	Control
MASON CAPITAL HOLDINGS LP	DE	MANAGING MEMBER	NA	Control
MASON CAPITAL HOLDINGS LP	DE	MANAGING MEMBER	NA	Control
MASON CAPITAL HOLDINGS LP	DE	MANAGING MEMBER	NA	Control
MASON CAPITAL HOLDINGS LP	DE	MANAGING MEMBER	NA	Control
MCGOVERN, JAMES, MURDOCK	I	CHIEF COMPLIANCE OFFICER	NA	Control
MCGOVERN, JAMES, MURDOCK	I	CHIEF COMPLIANCE OFFICER	NA	Control
MCGOVERN, JAMES, MURDOCK	I	GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICER	NA	Control
MCGOVERN, JAMES, MURDOCK	I	GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICER	NA	Control
READ, SAMUEL, THORNTON	I	ANALYST AND MANAGING MEMBER	NA	Control
READ, SAMUEL, THORNTON	I	ANALYST AND MANAGING MEMBER	NA	Control
READ, SAMUEL, THORNTON	I	ANALYST AND MANAGING MEMBER	NA	Control
READ, SAMUEL, THORNTON	I	ANALYST AND MANAGING MEMBER	NA	Control
READ, SAMUEL, THORNTON	I	ANALYST AND MANAGING MEMBER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SATZINGER, DEREK, RYAN	I	CHIEF FINANCIAL OFFICER	NA	Control
SIMMONS, MEREDITH, ANN	I	CHIEF COMPLIANCE OFFICER	NA	Control
SIMMONS, MEREDITH, ANN	I	CHIEF COMPLIANCE OFFICER	NA	Control
SIMMONS, MEREDITH, ANN	I	CHIEF COMPLIANCE OFFICER	NA	Control
SIMMONS, MEREDITH, ANN	I	CHIEF COMPLIANCE OFFICER	NA	Control
SIMMONS, MEREDITH, ANN	I	CHIEF COMPLIANCE OFFICER	NA	Control
SIMMONS, MEREDITH, ANN	I	CHIEF COMPLIANCE OFFICER	NA	Control
SIMMONS, MEREDITH, ANN	I	CHIEF COMPLIANCE OFFICER	NA	Control
SIMMONS, MEREDITH, ANN	I	CHIEF COMPLIANCE OFFICER	NA	Control
SIMMONS, MEREDITH, ANN	I	CHIEF COMPLIANCE OFFICER	NA	Control
SIMMONS, MEREDITH, ANN	I	CHIEF COMPLIANCE OFFICER	NA	Control
SIMMONS, MEREDITH, ANN	I	CHIEF COMPLIANCE OFFICER	NA	Control
SIMMONS, MEREDITH, ANN	I	CHIEF COMPLIANCE OFFICER	NA	Control
SIMMONS, MEREDITH, ANN	I	CHIEF COMPLIANCE OFFICER	NA	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
GARSCHINA, KENNETH, MARIO	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control
MARTINO, MICHAEL, EMIL	I	MANAGING MEMBER AND PRINCIPAL	D	Control

Indirect Owners (Schedule B)

Name	Type	Entity	Ownership	Control
MASON MANAGEMENT HOLDINGS LLC	DE	MASON CAPITAL HOLDINGS LP	F	Control
MASON MANAGEMENT HOLDINGS LLC	DE	MASON CAPITAL HOLDINGS LP	F	Control
MASON MANAGEMENT HOLDINGS LLC	DE	MASON CAPITAL HOLDINGS LP	F	Control
MASON MANAGEMENT HOLDINGS LLC	DE	MASON CAPITAL HOLDINGS LP	F	Control
MASON MANAGEMENT HOLDINGS LLC	DE	MASON CAPITAL HOLDINGS LP	F	Control
MASON MANAGEMENT HOLDINGS LLC	DE	MASON CAPITAL HOLDINGS LP	F	Control
MASON MANAGEMENT HOLDINGS LLC	DE	MASON CAPITAL HOLDINGS LP	F	Control
GARSCHINA, KENNETH, MARIO	I	MASON CAPITAL HOLDINGS LP	D	Control
GARSCHINA, KENNETH, MARIO	I	MASON MANAGEMENT HOLDINGS LLC	D	Control
GARSCHINA, KENNETH, MARIO	I	MASON CAPITAL HOLDINGS LP	D	Control
GARSCHINA, KENNETH, MARIO	I	MASON MANAGEMENT HOLDINGS LLC	D	Control
GARSCHINA, KENNETH, MARIO	I	MASON MANAGEMENT HOLDINGS LLC	D	Control
GARSCHINA, KENNETH, MARIO	I	MASON CAPITAL HOLDINGS LP	D	Control
GARSCHINA, KENNETH, MARIO	I	MASON CAPITAL HOLDINGS LP	D	Control
GARSCHINA, KENNETH, MARIO	I	MASON MANAGEMENT HOLDINGS LLC	D	Control
GARSCHINA, KENNETH, MARIO	I	MASON CAPITAL HOLDINGS LP	D	Control
GARSCHINA, KENNETH, MARIO	I	MASON MANAGEMENT HOLDINGS LLC	D	Control
GARSCHINA, KENNETH, MARIO	I	MASON CAPITAL HOLDINGS LP	D	Control
GARSCHINA, KENNETH, MARIO	I	MASON MANAGEMENT HOLDINGS LLC	D	Control
GARSCHINA, KENNETH, MARIO	I	MASON CAPITAL HOLDINGS LP	D	Control
GARSCHINA, KENNETH, MARIO	I	MASON MANAGEMENT HOLDINGS LLC	D	Control
MARTINO, MICHAEL, EMIL	I	MASON CAPITAL HOLDINGS LP	D	Control
MARTINO, MICHAEL, EMIL	I	MASON MANAGEMENT HOLDINGS LLC	D	Control
MARTINO, MICHAEL, EMIL	I	MASON CAPITAL HOLDINGS LP	D	Control
MARTINO, MICHAEL, EMIL	I	MASON MANAGEMENT HOLDINGS LLC	D	Control
MARTINO, MICHAEL, EMIL	I	MASON CAPITAL HOLDINGS LP	D	Control
MARTINO, MICHAEL, EMIL	I	MASON MANAGEMENT HOLDINGS LLC	D	Control
MARTINO, MICHAEL, EMIL	I	MASON CAPITAL HOLDINGS LP	D	Control
MARTINO, MICHAEL, EMIL	I	MASON MANAGEMENT HOLDINGS LLC	D	Control
MARTINO, MICHAEL, EMIL	I	MASON CAPITAL HOLDINGS LP	D	Control
MARTINO, MICHAEL, EMIL	I	MASON MANAGEMENT HOLDINGS LLC	D	Control
MARTINO, MICHAEL, EMIL	I	MASON CAPITAL HOLDINGS LP	D	Control
MARTINO, MICHAEL, EMIL	I	MASON MANAGEMENT HOLDINGS LLC	D	Control
MARTINO, MICHAEL, EMIL	I	MASON CAPITAL HOLDINGS LP	D	Control
MARTINO, MICHAEL, EMIL	I	MASON MANAGEMENT HOLDINGS LLC	D	Control

Registrations

Federal

Apr 14, 2025 REGISTERED

Address

110 E. 59TH STREET
30TH FL
NEW YORK, NY 10022-1304
United States

Phone: 212-771-1200