Ledger.
Investor · Old Bethpage, NY

William J. Rupp

Open William in the network graph →
Filings
17
SEC Form D
Connections
63
co-filers
Capital
$2.2M
across filings
Active
Dec 2021
to Jan 2024

Most-connected co-filers (63)

Mark Smith · New York, NY13 sharedJon A. Northrop · Crestone, CO11 sharedEdward T. Schafer · Crestone, CO9 sharedWilliam E. O'Neill · Old Bethpage, NY9 sharedSalvatore J. Zizza · Rye, NY8 sharedMagnus P. Sjocrona · Stockholm, V74 sharedJan Stieger · Wall Township, NJ4 sharedVictoria Wood · HOUSTON, TX4 sharedMaximilian A. Gottschalk · London, United Kingdom4 sharedTrent J. May · DENVER, CO4 sharedMichael S. Piper · Wall Township, NJ4 sharedBeth Seidenberg · San Francisco, CA3 sharedJennifer L. Norris · Denver, CO3 sharedNeeraj Hablani · Palo Alto, CA3 sharedRaghav Mecheri · New York, NY3 sharedJames B. Bollas · New York, NY3 sharedSean Parker · South San Francisco, CA3 sharedKenneth Drazan · South San Francisco, CA3 sharedBrook Byers · MENLO PARK, CA3 sharedAndrew J. Secrist · Salt Lake City, UT3 sharedMatthew K. Fust · Menlo Park, CA3 sharedJeffrey F. O'Donnell Sr · Malvern, PA3 sharedEnping Deng · Alhambra, CA2 sharedRaffaele A. Fazio · Wichita, KS2 shared

Recent filings (17)

SRC Ajin Fund VI, LLCJul 2025 · 10 co-filers$79.2MArsenal Biosciences, Inc.Sep 2024 · 21 co-filers$325.4MBION ENVIRONMENTAL TECHNOLOGIES INCJun 2024 · 18 co-filers$4.0MBION ENVIRONMENTAL TECHNOLOGIES INCJun 2024 · 18 co-filers$4.0MSRC Ajin Fund VI, LLCFeb 2024 · 10 co-filers$79.2MBION ENVIRONMENTAL TECHNOLOGIES INCFeb 2024 · 16 co-filers$6.0MBION ENVIRONMENTAL TECHNOLOGIES INCFeb 2024 · 16 co-filers$6.0MBION ENVIRONMENTAL TECHNOLOGIES INCJan 2024 · 12 co-filers$300KBION ENVIRONMENTAL TECHNOLOGIES INCDec 2023 · 12 co-filers$6.0MBION ENVIRONMENTAL TECHNOLOGIES INCOct 2023 · 15 co-filers$1.5MBION ENVIRONMENTAL TECHNOLOGIES INCMar 2023 · 15 co-filers$10.0MViper Ultimate Holdco, LLCSep 2022 · 5 co-filers$2.5MArsenal Biosciences, Inc.Sep 2022 · 20 co-filers$230.8MViper Ultimate Holdco, LLCSep 2022 · 5 co-filers$4.5MArsenal Biosciences, Inc.Sep 2022 · 17 co-filers$33.0MHorizon VC, LPMay 2022 · 5 co-filers$44.0MHorizon VC, LPDec 2021 · 5 co-filers$30.0MYami Investment LtdDec 2021 · 11 co-filers$30.0MYami Investment LtdDec 2021 · 11 co-filers$7.6M

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