# MASON CAPITAL MANAGEMENT LLC

MASON CAPITAL MANAGEMENT LLC of NEW YORK, NY is an SEC-registered investment adviser.

## Registration

- CRD: 158797
- Type: SEC-registered investment adviser
- SEC file number: 801-73255
- Location: 110 E. 59TH STREET, 30TH FL, NEW YORK, NY, 10022-1304
- Phone: 212-771-1200
- Latest filing: 2026-03-31
- Regulatory AUM: $2.2B
- Discretionary AUM: $1.7B
- Non-discretionary AUM: $509.2M
- Clients: 15
- Accounts: 5

## Business model

- Compensation: % of AUM, Performance, Other
- Clients served: Investment cos

## Officers, owners & control persons (18)

| Name | Role | Location |
| --- | --- | --- |
| [Michael Emil Martino](https://search.stillhousedata.com/person/697423) | LIMITED PARTNER; MANAGING MEMBER; MANAGING MEMBER AND PRINCIPAL | — |
| [Kenneth Mario Garschina](https://search.stillhousedata.com/person/697424) | LIMITED PARTNER; MANAGING MEMBER; MANAGING MEMBER AND PRINCIPAL | — |
| [John Christopher Grizzetti](https://search.stillhousedata.com/person/697425) | CHIEF OPERATING OFFICER AND MANAGING MEMBER | — |
| [Derek Ryan Satzinger](https://search.stillhousedata.com/person/697426) | CHIEF FINANCIAL OFFICER | — |
| [Daniela Constantino](https://search.stillhousedata.com/person/697427) | ANALYST AND MANAGING MEMBER | — |
| [Michael George Cutini](https://search.stillhousedata.com/person/697428) | GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICER | — |
| [Samuel Thornton Read](https://search.stillhousedata.com/person/697429) | ANALYST AND MANAGING MEMBER | — |
| [MARTINO MICHAEL EMIL](https://search.stillhousedata.com/person/732233) | LIMITED PARTNER; MANAGING MEMBER; MANAGING MEMBER AND PRINCIPAL | — |
| [GARSCHINA KENNETH MARIO](https://search.stillhousedata.com/person/732234) | LIMITED PARTNER; MANAGING MEMBER; MANAGING MEMBER AND PRINCIPAL | — |
| [GRIZZETTI JOHN CHRISTOPHER](https://search.stillhousedata.com/person/732235) | CHIEF FINANCIAL OFFICER, PARTNER; CHIEF OPERATING OFFICER AND MANAGING MEMBER; CHIEF OPERATING OFFICER, CHIEF COMPLIANCE OFFICER, PARTNER (+1 more) | — |
| [SIMMONS CATHY ANN](https://search.stillhousedata.com/person/768704) | CHIEF COMPLIANCE OFFICER | — |
| [MCGOVERN JAMES MURDOCK](https://search.stillhousedata.com/person/776362) | CHIEF COMPLIANCE OFFICER; GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICER | — |
| [MACKNIGHT DAVID SCOTT](https://search.stillhousedata.com/person/823806) | ANALYST, PARTNER | — |
| [DEMARK ADAM COURTLAND](https://search.stillhousedata.com/person/823807) | ANALYST, PARTNER | — |
| [SATZINGER DEREK RYAN](https://search.stillhousedata.com/person/823808) | CHIEF FINANCIAL OFFICER | — |
| [CONSTANTINO DANIELA](https://search.stillhousedata.com/person/829088) | ANALYST AND MANAGING MEMBER; ANALYST, PARTNER | — |
| [CUTINI MICHAEL GEORGE](https://search.stillhousedata.com/person/867323) | GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICER | — |
| [READ SAMUEL THORNTON](https://search.stillhousedata.com/person/874797) | ANALYST AND MANAGING MEMBER | — |


## Related pages

- Form ADV Part 2 brochure: https://search.stillhousedata.com/firm/158797/brochure
- Similar advisers: https://search.stillhousedata.com/firm/158797/similar
- Related entities: https://search.stillhousedata.com/firm/158797/related
- SEC IAPD (source of record): https://adviserinfo.sec.gov/firm/summary/158797

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Source: public SEC Form ADV data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.