Investor · London, United Kingdom
John R. Madden
Open John in the network graph →Filings
38
SEC Form D
Connections
82
co-filers
Capital
$49.0M
across filings
Active
Feb 2022
to Jan 2025
Most-connected co-filers (82)
Sergio W. Passos · Sao Paulo, Guernsey16 sharedRuffer Llp · London, United Kingdom12 sharedRuffer Llp · London, United Kingdom12 sharedMartin Cullen · London, United Kingdom12 sharedRuffer Aifm Limited · London, United Kingdom12 sharedAustin Clinkscales · Dallas, TX12 sharedRuffer Llp · London, United Kingdom12 sharedPaul Cornet · Grand Cayman, Cayman Islands12 sharedRuffer Aifm Limited · London, United Kingdom12 sharedRay Green · Cardiff-by-the-Sea, CA12 sharedShan Zaidi · Austin, TX12 sharedAnil R. Bhalla · Sudbury, Ontario, Canada11 sharedRobert W. Payne · Haslemere, Surrey, United Kingdom11 sharedDimitrius R. De Oliveira · Sao Paulo, Guernsey9 sharedMark W. Nelson-Smith · London, United Kingdom9 sharedLouise Groom · Grand Cayman, Cayman Islands8 sharedEmil S. Harberg · OSLO, Q88 sharedRobert A. Nagele · Mullica Hill, NJ7 sharedAkshay W. Shah · LONDON, United Kingdom7 sharedJennifer Moreland · Seattle, WA7 sharedClay Iman · Denver, CO7 sharedPeter Hoglund · New York, NY7 sharedReid M. Rubsamen · Warrensville Heights, OH6 sharedRuffer Absolute Gp Limited · Grand Cayman, Cayman Islands6 shared
Recent filings (38)
Ruffer Absolute Institutional LtdAug 2025 · 13 co-filersRuffer Absolute LPAug 2025 · 15 co-filersHDC 4147 W 64th Avenue, LLLPMay 2025 · 2 co-filers$2.9MSIG24, LLCJan 2025 · 5 co-filers$50.0MRuffer Absolute LPAug 2024 · 15 co-filersRuffer Absolute Institutional LtdAug 2024 · 13 co-filersRuffer Absolute LPAug 2024 · 15 co-filersRuffer Absolute Institutional LtdAug 2024 · 13 co-filersSIG24, LLCFeb 2024 · 5 co-filers$50.0MPURSUANT HEALTH, INC.Jan 2024 · 23 co-filers$9.8MSIG23, LLCJan 2024 · 5 co-filers$45.7MBison World, Inc.Dec 2023 · 5 co-filers$20.0MBison World, Inc.Nov 2023 · 5 co-filers$1.0MBison World, Inc.Sep 2023 · 5 co-filers$1KAtento Luxco 1 S.A.Sep 2023 · 20 co-filers$3.0MAtento Luxco 1 S.A.Sep 2023 · 20 co-filers$3.0MRuffer Absolute LPAug 2023 · 15 co-filersRuffer Absolute Institutional LtdAug 2023 · 13 co-filersAtento Luxco 1 S.A.Aug 2023 · 20 co-filers$17.0MAtento Luxco 1 S.A.Aug 2023 · 20 co-filers$1.2MAtento Luxco 1 S.A.Aug 2023 · 20 co-filers$1.2MAtento Luxco 1 S.A.Aug 2023 · 20 co-filers$17.0MAtento Luxco 1 S.A.Jul 2023 · 20 co-filers$10.7MAtento Luxco 1 S.A.Jul 2023 · 20 co-filers$17.0MAtento Luxco 1 S.A.Jul 2023 · 20 co-filers$17.0M
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See John in the interactive graph →