Investor · Culver City, CA

Jonathan Sassover

Open Jonathan in the network graph →

Filings

16

SEC Form D

Connections

44

co-filers

Capital

$15.5M

across filings

Active

Jan 2022

to Jan 2026

Most-connected co-filers (44)

Paul Finnegan · Culver City, CA16 shared Charles H. Glorioso · New York, NY12 shared Allyson Manning · Greenwich, CT12 shared Eric Leblond · Indianapolis, IN8 shared Kenneth Gramley · Indianapolis, IN8 shared Aaron Feinberg · Detroit, MI8 shared Peter Manev · Westfield, IN8 shared Steve Millham · New York, NY8 shared Rush Island Management, LP · NEW YORK, NY8 shared Rush Island Management GP, LLC · New York, NY8 shared Raleigh Nuckols · New York, NY8 shared Ronan W. Guilfoyle · Grand Cayman, Cayman Islands5 shared Mark Sutton · Atlanta, GA5 shared Michael Davidov · New York, NY4 shared Rush Island GP, LLC · NEW YORK, NY4 shared Brad G. Cowdroy · George Town, Grand Cayman, Cayman Islands4 shared James O'Connell · Brooklyn, NY4 shared Anthony Clarke · Austin, TX3 shared David Friscia · San Diego, CA2 shared John Lynch · San Diego, CA2 shared Griffin Rotman · Culver City, CA2 shared Tanner Scott · CHICAGO, IL2 shared Brian Alexander · DALLAS, TX2 shared John B. Limansky · Scottsdale, AZ2 shared

Recent filings (16)

Rush Island, LPJan 2026 · 4 co-filers Rush Island Offshore, LtdJan 2026 · 5 co-filers Rush Island, LPJan 2025 · 14 co-filers Rush Island Offshore, LtdJan 2025 · 17 co-filers Rush Island Offshore, LtdJan 2024 · 17 co-filers Rush Island, LPJan 2024 · 14 co-filers AscentX Medical, Inc.Nov 2023 · 20 co-filers$3.0M AscentX Medical, Inc.Aug 2023 · 20 co-filers$3.0M Pine Street Healthcare Holdings, LLCAug 2023 · 13 co-filers$11.5M PSHUH, LLCAug 2023 · 11 co-filers$4.0M PSHUH, LLCAug 2023 · 11 co-filers$4.0M Pine Street Healthcare Holdings, LLCAug 2023 · 13 co-filers$11.5M Rush Island Offshore, LtdJan 2023 · 17 co-filers Rush Island, LPJan 2023 · 14 co-filers Rush Island Offshore, LtdJan 2022 · 17 co-filers Rush Island, LPJan 2022 · 14 co-filers Amplified Alpha A LPJan 2022 · 5 co-filers$50.0M Amplified Alpha A LPJan 2022 · 5 co-filers$50.0M

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