Investor · Portsmouth, NH
Mark Galvin
Open Mark in the network graph →Filings
56
SEC Form D
Connections
460
co-filers
Capital
$1.9M
across filings
Active
Apr 2017
to Mar 2026
Most-connected co-filers (460)
Matthew Robinson · Portsmouth, NH15 sharedDoublas J. Smorag · Beachwood, OH10 sharedPeter White · Nashua, NH9 sharedThomas R. Cardello · Stamford, CT9 sharedPhillippe L. Camu · New York, NY9 sharedNaveen K. Vavilala · FAIRFAX, VA9 sharedCraig S. Donohue · Chicago, IL9 sharedSusan E. Lester · San Diego, CA9 sharedMichael Daigle · Portsmouth, NH8 sharedMark J. Morrison · Chicago, IL8 sharedDavid Neustaedter · Sunnyvale, CA8 sharedThomas A. Frank · Greenwich, CT8 sharedDaniel T. Busby · Chicago, IL8 sharedHugo A. Mugica · Chicago, IL8 sharedAlice P. White · Arlington, VA8 sharedMark D. Kvamme · Columbus, OH8 sharedDavid A. Hoag · Chicago, IL8 sharedJulie W. Bauer · Chicago, IL8 sharedRonald L. Kirkby · BROOKLYN, NY7 sharedDaniel Feiner · Greenwood Village, CO7 sharedAndrej W. Bolkovic · Chicago, IL7 sharedStephen R. Luparello · New York, NY7 sharedDavid B. Goone · New York, NY7 sharedElizabeth K. King · New York, NY7 shared
Recent filings (56)
OPTIONS CLEARING CORPMar 2026 · 31 co-filersOPTIONS CLEARING CORPMar 2025 · 100 co-filersMMS Analytics, Inc.Jun 2024 · 10 co-filers$500KOPTIONS CLEARING CORPMar 2024 · 93 co-filersMMS Analytics, Inc.Apr 2023 · 9 co-filers$2.0MOPTIONS CLEARING CORPMar 2023 · 101 co-filersOPTIONS CLEARING CORPApr 2022 · 97 co-filersMMS Analytics, Inc.Jan 2022 · 8 co-filers$4.7MMMS Analytics, Inc.May 2021 · 8 co-filers$4.0MOPTIONS CLEARING CORPApr 2021 · 100 co-filersMMS Analytics, Inc.Jul 2020 · 8 co-filers$1.0MOPTIONS CLEARING CORPApr 2020 · 120 co-filersMMS Analytics, Inc.Nov 2019 · 8 co-filers$500KEQUINOX VENTURE CAPITAL FUND V, L.P.Apr 2019 · 20 co-filersOPTIONS CLEARING CORPApr 2019 · 92 co-filersSemma Therapeutics, Inc.Feb 2019 · 25 co-filers$119.9MMMS Analytics, Inc.Dec 2018 · 8 co-filers$2.0MFonkoze USA, Inc.Nov 2018 · 44 co-filersVera Roasting Company, Inc.Nov 2018 · 9 co-filers$500KEQUINOX VENTURE CAPITAL FUND V, L.P.Sep 2018 · 12 co-filersOPTIONS CLEARING CORPApr 2018 · 93 co-filersVera Roasting Company, Inc.Mar 2018 · 8 co-filers$600KVera Roasting Company, Inc.Mar 2018 · 8 co-filers$600KMMS Analytics, Inc.Feb 2018 · 8 co-filers$500KSemma Therapeutics, Inc.Dec 2017 · 25 co-filers$113.9M
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Mark in the interactive graph →