Investor · Potomac, MD
John Simpson
Open John in the network graph →Filings
13
SEC Form D
Connections
39
co-filers
Capital
$9.8M
across filings
Active
Apr 2023
to Dec 2025
Most-connected co-filers (39)
Benjamin W. Texter · New York, NY8 sharedKelly T. Baird · Denver, CO8 sharedJeffrey M. Welles · Cambridge, MA5 sharedLauren T. Clough · Denver, CO5 sharedBenjamin Glatter · New York, NY3 sharedChristopher R. Losapio · Chevy Chase, MD3 sharedKatherine J. Bryan · CHICAGO, IL3 sharedCarlos Saltz · SAN JUAN, Puerto Rico3 sharedJames E. Crockard Iii · CANONSBURG, PA3 sharedLacey L. Vincent · CANONSBURG, PA3 sharedL. J. Morris · CANONSBURG, PA3 sharedClint A. Soderstrom · CANONSBURG, PA3 sharedDavid Shulkin · RADNOR, PA3 sharedGabriel Olivera · SAN JUAN, PR, Puerto Rico3 sharedTim Sweeting · Grand Cayman, Cayman Islands3 sharedJose Santiago · SAN JUAN, PR, Puerto Rico3 sharedJoseph A. Gold · Darien, CT3 sharedRobert H. Thomas · George Town, Grand Cayman, Cayman Islands3 sharedRyan J. Petty · Kirkland, WA2 sharedSteven G. Chrust · Stamford, CT2 sharedVahe A. Dombalagian · CHICAGO, IL2 sharedChristopher Geyen · Plymouth, MN2 sharedJoseph M. Devivo · Santa Barbara, CA2 sharedCarlos Lopez-Ona · New York, NY2 shared
Recent filings (13)
Digital Health Strategies, Inc.Dec 2025 · 5 co-filers$5.6MDigital Health Strategies, Inc.Dec 2025 · 5 co-filers$5.6MDigital Health Strategies, Inc.Dec 2025 · 5 co-filers$5.6MDigital Health Strategies, Inc.Dec 2025 · 5 co-filers$5.6MQuantum Surgical IncSep 2025 · 17 co-filers$75.0MQuantum Surgical IncAug 2025 · 17 co-filers$68.0MPREFERRED CAPITAL PRIVATE EQUITY FUND, LLC - UL FUND 1Dec 2023 · 9 co-filers$20.0MDigital Health Strategies, Inc.Oct 2023 · 3 co-filers$1.5MDigital Health Strategies, Inc.Oct 2023 · 3 co-filers$1.5MPREFERRED CAPITAL PRIVATE EQUITY FUND, LLC - ML FUND 1Jul 2023 · 8 co-filers$1.0MPREFERRED CAPITAL PRIVATE EQUITY FUND, LLC - RE FUND 1May 2023 · 8 co-filers$1.8MLOLA ENERGY VI, LLCApr 2023 · 11 co-filers$20.0MLOLA ENERGY HOLDINGS VI LLCApr 2023 · 14 co-filers$18.0MMUDDY CREEK ENERGY PARTNERS III LLCApr 2023 · 14 co-filers$18.0MPatra TopCo, LLCSep 2022 · 11 co-filersPatra TopCo, LLCSep 2022 · 11 co-filersAtreca, Inc.Oct 2011 · 5 co-filers$750K
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See John in the interactive graph →