Investor · Greenwich, CT

Jason Rosenfeld

Open Jason in the network graph →

Filings

11

SEC Form D

Connections

81

co-filers

Capital

$10.6M

across filings

Active

May 2020

to Apr 2024

Most-connected co-filers (81)

Ryan Mahon · Greenwich, CT8 shared Robert M. Ducharme · Kelowna, British Columbia, Canada4 shared Mitchell E. Cantor · Mill Valley, CA4 shared Shane N. Grimaldi · NEW YORK, NY4 shared Daniel J. Davis · Chicago, IL4 shared George S. Tunis · Princeton, NJ4 shared Dana J. Fender · Chicago, IL4 shared Honghao Deng · Burlingame, CA4 shared Brandon Peterson · Fremont, NE4 shared Paul Anderson · CHANHASSEN, MN4 shared Crowdcent Gp Llc · Greenwich, CT4 shared Crowdcent Gp Llc · Greenwich, CT4 shared Crowdcent Gp Llc · Greenwich, CT4 shared Shane Quint · Littleton, CO4 shared Scott Cohen · Brooklyn, NY4 shared Divya Narendra · Greenwich, CT3 shared N. Sumzero Capital Management, Llc · Greenwich, CT3 shared N. Sumzero Capital Management, Llc · Greenwich, CT3 shared Brian Burkholder · New York, NY2 shared Frank P. Tworecke · TORONTO, Ontario, Canada2 shared Ivan A. Barratt · Carmel, IN2 shared Sasha P. Cucuz · TORONTO, Ontario, Canada2 shared Elaine Foreman · SAN FRANCISCO, CA2 shared Colleen P. Campbell · TORONTO, Ontario, Canada2 shared

Recent filings (11)

SumZero Capital, LPNov 2025 · 3 co-filers SumZero Capital, LPNov 2024 · 4 co-filers CrowdCent NMR LPApr 2024 · 11 co-filers SumZero Capital, LPNov 2023 · 3 co-filers CrowdCent NMR LPApr 2023 · 11 co-filers Greenbrook TMS Inc.Jul 2022 · 37 co-filers$15.7M CrowdCent NMR LPMay 2022 · 8 co-filers CrowdCent NMR LPMay 2021 · 8 co-filers Greenbrook TMS Inc.May 2020 · 33 co-filers$4.3M Topia LtdMay 2020 · 41 co-filers$12.6M Topia LtdMay 2020 · 41 co-filers$12.6M

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