Investor · New York, NY
Base4 General Partner LLC
Open Base4 in the network graph →Filings
22
SEC Form D
Connections
41
co-filers
Capital
$261.3M
across filings
Active
Jan 2022
to Mar 2026
Most-connected co-filers (41)
David N. Belitz · Chattanooga, TN9 sharedRobert O. Little · SAN FRANCISCO, CA9 sharedEd O. Woiteshek · SAN FRANCISCO, CA9 sharedGaurav Bhandari · New York, NY9 sharedMia Lewin · Sammamish, WA9 sharedBase4 Capital LP · New York, NY8 sharedJason Abrahams · Brookline, MA7 sharedAmol Jain · Menlo Park, CA7 sharedAliaksandr Zhykh · New York, NY6 sharedSophia D. Dilbert · Camana Bay, Cayman Islands5 sharedSimon Henderson · VANCOUVER, British Columbia, Canada5 sharedOliver Lennox-King · VANCOUVER, British Columbia, Canada5 sharedTerese Gieselman · West Kelowna, British Columbia, Canada3 sharedMichael Blady · Vancouver, British Columbia, Canada3 sharedRobert Eckford · VANCOUVER, British Columbia, Canada3 sharedRich Vincent · Riverdale, MD3 sharedWalden Rhines · Campbell, CA3 sharedJonathan A. Freeman · Marlborough, MA3 sharedPatricia A. Bradford · Marlborough, MA3 sharedLewis Teal · Vancouver, British Columbia, Canada3 sharedChad Peters · Vancouver, British Columbia, Canada3 sharedDuane Lo · Vancouver, British Columbia, Canada3 sharedRon Epstein · Campbell, CA3 sharedDaniel Cohen · Pittsburgh, PA2 shared
Recent filings (22)
Base4 Private Ventures III LPMar 2026 · 2 co-filersMariner Opportunity LPApr 2025 · 5 co-filersLIPELLA PHARMACEUTICALS INC.Apr 2025 · 22 co-filers$9KBase4 Private Ventures IV LPMar 2025 · 7 co-filersBase4 Private Ventures IV LPMar 2025 · 7 co-filersBase4 Onshore Fund LPAug 2024 · 7 co-filersBase4 Onshore Fund LPAug 2024 · 7 co-filersLIPELLA PHARMACEUTICALS INC.Aug 2024 · 23 co-filers$120KBase4 Private Ventures IV LPJul 2024 · 7 co-filersBase4 Private Ventures IV LPJul 2024 · 7 co-filersVALEAS CAPITAL PARTNERS FUND I LPMay 2024 · 5 co-filersVALEAS CAPITAL PARTNERS FUND I-A LPMay 2024 · 5 co-filersCINQ OPPORTUNITY LPFeb 2024 · 5 co-filersSHERMAN OPPORTUNITY-B LPFeb 2024 · 5 co-filersBase4 Private Ventures III LPDec 2023 · 6 co-filersBase4 Private Ventures III LPDec 2023 · 6 co-filersBase4 Onshore Fund LPAug 2023 · 7 co-filersBase4 Onshore Fund LPAug 2023 · 7 co-filersRidgeline Minerals CorpJun 2023 · 17 co-filers$896KRidgeline Minerals CorpMay 2023 · 17 co-filers$896KVALEAS CAPITAL PARTNERS FUND I LPMay 2023 · 5 co-filersVALEAS CAPITAL PARTNERS FUND I-A LPMay 2023 · 5 co-filersSHERMAN OPPORTUNITY LPMar 2023 · 5 co-filersSHERMAN OPPORTUNITY-A LPOct 2022 · 5 co-filersRidgeline Minerals CorpOct 2022 · 16 co-filers$445K
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Base4 in the interactive graph →