Investor · NEW YORK, NY

Mason Management Llc

Open Mason in the network graph →

Filings

16

SEC Form D

Connections

11

co-filers

Capital

$32.0B

across filings

Active

Mar 2011

to Mar 2026

Most-connected co-filers (11)

Michael E. Martino · NEW YORK, NY15 shared Kenneth M. Garschina · NEW YORK, NY15 shared Mason Management Llc · New York, NY15 shared John C. Grizzetti · NEW YORK, NY15 shared Luis Stuhlberger · Sao Paulo, Guernsey13 shared Odilon Fernandes D. Neto · Sao Paulo, Guernsey13 shared William E. Walmsley · Grand Cayman, Cayman Islands13 shared Baburaj Pillai · Singapore, U02 shared Joseph Lipscomb · Chevy Chase, MD2 shared Deepak Majeethia · New York, NY2 shared Aileen Lee · San Francisco, CA1 shared

Recent filings (16)

MASON CAPITAL L PMar 2026 · 3 co-filers MASON CAPITAL L PMar 2025 · 7 co-filers MASON CAPITAL L PMar 2024 · 7 co-filers MASON CAPITAL L PMar 2023 · 7 co-filers MASON CAPITAL L PFeb 2022 · 7 co-filers MASON CAPITAL L PMar 2021 · 7 co-filers MASON CAPITAL L PMar 2020 · 7 co-filers MASON CAPITAL L PMar 2019 · 7 co-filers MASON CAPITAL L PMar 2018 · 7 co-filers MASON CAPITAL L PMar 2017 · 7 co-filers MASON CAPITAL L PMar 2016 · 7 co-filers MASON CAPITAL L PMar 2015 · 7 co-filers MASON CAPITAL L PMar 2014 · 7 co-filers MASON CAPITAL L PMar 2013 · 7 co-filers MASON CAPITAL L PMar 2012 · 7 co-filers MASON CAPITAL L PMar 2011 · 5 co-filers

Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Mason in the interactive graph →