Investor · HOUSTON, TX
William Robertson
Open William in the network graph →Filings
23
SEC Form D
Connections
177
co-filers
Capital
$3.9M
across filings
Active
May 2019
to Aug 2022
Most-connected co-filers (177)
Toby J. Hamilton · Houston, TX16 sharedJames Watt · Houston, TX11 sharedNicolas De Castro · BOZEMAN, MT10 sharedBeau Pollock · HOUSTON, TX9 sharedAdam Abramson · BOSTON, MA6 sharedMarni F. Payne · Boston, MA6 sharedElizabeth L. Hoffman · Boston, MA6 sharedDavid C. Bordeau · Boston, MA6 sharedBen Chereskin · CHICAGO, IL6 sharedGregg T. Williams · SYLMAR, CA6 sharedBenjamin D. Levy · Boston, MA6 sharedBlake L. Gottesman · Boston, MA6 sharedLawrence S. Hamelsky · Boston, MA6 sharedJoshua A. Lutzker · Boston, MA6 sharedChristopher J. Hadley · Boston, MA6 sharedRead D. Ziegler · Roanoke, VA6 sharedPaul A. Mainwaring · London, United Kingdom6 sharedRaleigh A. Shoemaker · BOSTON, MA6 sharedRoss M. Jones · Boston, MA6 sharedGreg J. Pappas · BOSTON, MA6 sharedMichael C. Ascione · Boston, MA6 sharedKenneth S. Bring · BOSTON, MA6 sharedSamuel W. Spirn · Boston, MA6 sharedJeffrey M. Johnston · Durham, NC6 shared
Recent filings (23)
Alpenglow Biosciences, Inc.Dec 2025 · 11 co-filers$3.0MBerkshire Spectre Co-Investor, L.P.Sep 2024 · 50 co-filersTLand Aggregator I, L.P.May 2024 · 59 co-filersHamilton Health Box, Inc.May 2024 · 14 co-filers$16.9MHamilton Health Box, Inc.May 2024 · 14 co-filers$16.9MBerkshire HPC Co-Investor I, L.P.May 2024 · 59 co-filersBerkshire HPC Co-Investor II, L.P.May 2024 · 59 co-filersAlpenglow Biosciences, Inc.Mar 2024 · 13 co-filers$4.8MHamilton Health Box, Inc.Mar 2024 · 14 co-filers$16.9MHamilton Health Box, Inc.Mar 2024 · 14 co-filers$16.9MBAH Co-Investor, L.P.Oct 2022 · 74 co-filersPRIME BANC CORPAug 2022 · 32 co-filers$20.3MBurlywood, Inc.Jul 2022 · 11 co-filers$9.6MBurlywood, Inc.Apr 2022 · 13 co-filers$3.5MBEHP Co-Investor I, L.P.Apr 2022 · 74 co-filersHamilton Health Box, Inc.Mar 2022 · 15 co-filers$3.0MPRIME BANC CORPMay 2021 · 32 co-filers$25.0MMaC Venture Capital 2019, LPAug 2020 · 11 co-filers$100.0MPRIME BANC CORPAug 2020 · 37 co-filers$3.4MHamilton Health Box, Inc.Aug 2020 · 11 co-filers$2.2MPRIME BANC CORPMay 2019 · 40 co-filers$15.0MMaC Venture Capital 2019, LPMay 2019 · 11 co-filers$100.0MAVALARA INCNov 2010 · 16 co-filers$5.0MQUINTANA ENERGY PARTNERS II LPJun 2010 · 11 co-filers$650.0MAVALARA INCMay 2010 · 14 co-filers$9.4M
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See William in the interactive graph →