Investor · Lowell, MA
Jeffrey Karp
Open Jeffrey in the network graph →Capital
$8.9M
across filings
Active
Jan 2023
to Jun 2025
Most-connected co-filers (34)
John Brooks · Lowell, MA8 sharedMelani Gordon · Oakland, CA5 sharedOptions Solutions, Llc · Chicago, IL4 sharedOptions Solutions, Llc · Chicago, IL4 sharedGeorge E. Haines · Newtown Square, PA4 sharedSteven S. Sears · Chevy Chase, MD4 sharedMichael S. Brodsky · Chevy Chase, MD4 sharedClayton Wyatt · Calabasas, CA4 sharedGuillermo M. Cortina · Hawthorne, CA4 sharedJesse A. Smith · Spartanburg, SC4 sharedSteven A. Owings · Spartanburg, SC4 sharedJohn S. Nolan · Chevy Chase, MD4 sharedTom A. Rizk · Boca Raton, FL3 sharedNancy Briefs · Lowell, MA3 sharedAaron E. Shapiro · New York, NY3 sharedJeffery R. Fang · New York, NY3 sharedChristopher W. Allen · Boca Raton, FL3 sharedRoger W. Thomas · Boca Raton, FL3 sharedDavid G. Tisch · New York, NY3 sharedMark I. Andrews · NEW YORK, NY3 sharedNaveen E. Balasubramanyam · Irving, TX3 sharedJason E. Engelhorn · Irving, TX3 sharedMichael J. Ambrosi · Clifton, NJ3 sharedRvmc Capital Llc · Boca Raton, FL3 shared Recent filings (12)
AltrixBio, Inc.Jun 2025 · 11 co-filers$10.0MAltrixBio, Inc.Jun 2025 · 11 co-filers$10.0MAltrixBio, Inc.Jun 2025 · 11 co-filers$10.0MAltrixBio, Inc.Jun 2025 · 11 co-filers$6.6MAltrixBio, Inc.Jun 2025 · 11 co-filers$6.6MAltrixBio, Inc.Jun 2025 · 11 co-filers$10.0MMadison Scientific, Inc.Apr 2025 · 14 co-filers$10.1MMadison Scientific, Inc.Jan 2025 · 14 co-filers$7.1MCompound Advantage: Rebounder Fund, LLCJan 2024 · 10 co-filersCompound Advantage: 21st Century Themes, LLCJan 2024 · 10 co-filersCompound Advantage: Rebounder Fund, LLCJan 2023 · 10 co-filersCompound Advantage: 21st Century Themes, LLCJan 2023 · 10 co-filersGalaxy REIT LLCJan 2023 · 11 co-filers$1.0MGalaxy REIT LLCJan 2023 · 11 co-filers$984KGalaxy REIT LLCJan 2023 · 11 co-filers$1.0M Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Jeffrey in the interactive graph →