Investor · Stamford, CT
Jonathan Siscovick
Open Jonathan in the network graph →Capital
$47.6M
across filings
Active
Mar 2023
to Sep 2025
Most-connected co-filers (29)
Jay R. Soni · Seal Beach, CA4 sharedGretchen R. Kendrick · Dallas, TX4 sharedRandall R. Kendrick · Dallas, TX4 sharedJacob R. Spring · Seal Beach, CA4 sharedJoseph R. Kidwell · Dallas, TX4 sharedNishaad Ruparel · Arlington, VA4 sharedWill Chance · Arlington, VA4 sharedSeif E. Lotfy · San Francisco, CA4 sharedXebec Holdings Manager, Llc · Seal Beach, CA4 sharedXebec Holdings Manager, Llc · Seal Beach, CA4 sharedPaul Sun · Burnaby, British Columbia, Canada2 sharedChristopher J. King · Hanover, MA2 sharedThomas G. Broderick, Jr · Milton, MA2 sharedSusan V. Rosenbaum · Little Rock, AR2 sharedDale J. Dobson · Vancouver, British Columbia, Canada2 sharedDayah Alpha Gp, Llc · Stamford, CT2 sharedDayah Alpha Gp, Llc · Stamford, CT2 sharedWilliam C. Haseltine, Phd · Aspen, CO2 sharedDayah Capital Llc · Stamford, CT2 sharedChris Mccoy · COVINA, CA2 sharedDayah Capital Llc · Stamford, CT2 sharedDayah Alpha Gp, Llc · Stamford, CT2 sharedAdeel R. Khan · Seal Beach, CA2 sharedDaniel M. Oberste · Little Rock, AR2 shared Recent filings (10)
Xebec Holdings, LLCSep 2025 · 11 co-filers$10.0MBSR Trust, LLCMar 2025 · 8 co-filers$238.5MBSR Trust, LLCMar 2025 · 8 co-filers$238.5MDayah Alpha Partners (Cayman), LPFeb 2025 · 7 co-filersDayah Alpha Partners, LPFeb 2025 · 7 co-filersDayah Alpha Partners (Cayman), LPFeb 2025 · 7 co-filersDayah Alpha Partners, LPFeb 2025 · 7 co-filersCanal Cove Development, LLCJan 2025 · 4 co-filers$7.0MXebec Holdings, LLCSep 2024 · 11 co-filers$10.0MXebec Holdings, LLCAug 2023 · 13 co-filers$10.0MXebec Holdings, LLCMar 2023 · 13 co-filers$20.0MELKSY DEVELOPMENT, LLCMar 2023 · 6 co-filers$10.0M Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Jonathan in the interactive graph →