Investor · San Antonio, TX
Paul R. Castella
Open Paul in the network graph →Filings
108
SEC Form D
Connections
249
co-filers
Capital
$57.2M
across filings
Active
Nov 2015
to Apr 2021
Most-connected co-filers (249)
Ian R. Clements · San Antonio, TX23 sharedAlan R. Dean · San Antonio, TX23 sharedMark D. Horsey · San Antonio, TX21 sharedSimcoe Capital Management, LLC · New York, NY20 sharedSteven W. Davis · San Antonio, TX20 sharedSheila L. Villalobos · Whittier, CA20 sharedJean W. Cheever · San Antonio, TX20 sharedRobert D. Hutchens · San Antonio, TX17 sharedChristopher Banas · San Antonio, TX15 sharedPiper Miles-Coccaro · New York, NY14 sharedMark Lessing · New York, NY14 sharedTaylor B. Thompson · New York, NY14 sharedJohn B. Weinstein · New York, NY14 sharedMike Spadafore · NEW YORK, NY14 sharedBlair Flicker · New York, NY14 sharedJeffrey Horing · New York, NY14 sharedSteven C. Young · Delafield, WI14 sharedIan Sandler · New York, NY14 sharedChen W. Xiao-Dong · San Antonio, TX14 sharedDeven Parekh · New York, NY14 sharedRobert Giustra · VANCOUVER, British Columbia, Canada14 sharedAndrew B. Prodromos · New York, NY14 sharedDavid C. Cliff · Princes Risborough, United Kingdom12 sharedJason E. Fox · New York, NY11 shared
Recent filings (108)
Tropogenix, Inc.Sep 2025 · 11 co-filers$2.5MTropogenix, Inc.Sep 2025 · 11 co-filers$2.5MHera Biotech, Inc.Sep 2025 · 8 co-filers$5.0MHera Biotech, Inc.Sep 2025 · 8 co-filers$5.0MTropogenix, Inc.Sep 2025 · 11 co-filers$2.5MTropoflex Inc.Sep 2025 · 11 co-filers$2.5MTropoflex Inc.Sep 2025 · 11 co-filers$2.5MTropogenix, Inc.Sep 2025 · 11 co-filers$2.5MInnovative Trauma Care Inc.Jan 2025 · 17 co-filers$1.0MInnovative Trauma Care Inc.Jan 2025 · 17 co-filers$1.0MHera Biotech, Inc.Aug 2024 · 11 co-filers$6.0MWalton Renaissance State Credit, LLCJan 2024 · 20 co-filers$534KInsight Partners (Cayman) XIII, L.P.Dec 2023 · 12 co-filersInsight Partners XIII, L.P.Dec 2023 · 12 co-filersInsight Partners XIII Growth Buyout Fund (Co-Investors) (B), L.P.Aug 2023 · 12 co-filersInsight Partners XIII (Co-Investors), L.P.Aug 2023 · 12 co-filersInsight Partners XIII Growth Buyout Fund (Co-Investors), L.P.Aug 2023 · 12 co-filersInsight Partners (Cayman) XIII, L.P.Aug 2023 · 12 co-filersInsight Partners (Cayman) XIII Growth Buyout Fund, L.P.Aug 2023 · 12 co-filersInsight Partners XIII Growth Buyout Fund, L.P.Aug 2023 · 12 co-filersInsight Partners XIII, L.P.Aug 2023 · 12 co-filersInsight Partners XIII Growth Buyout Fund (Class A), L.P.Aug 2023 · 12 co-filersInsight Partners XIII (Class A), L.P.Aug 2023 · 12 co-filersInsight Partners (Delaware) XIII Growth Buyout Fund, L.P.Aug 2023 · 12 co-filersInsight Partners (Delaware) XIII, L.P.Aug 2023 · 12 co-filers
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Paul in the interactive graph →