Investor · El Cajon, CA

Stephen M. Hosmer

Open Stephen in the network graph →

Filings

85

SEC Form D

Connections

230

co-filers

Capital

$1.1M

across filings

Active

Jul 2022

to Nov 2025

Most-connected co-filers (230)

Jonathan G. Gregory · El Cajon, CA37 shared Donald G. Hosmer · El Cajon, CA33 shared Harry E. Hosmer · El Cajon, CA25 shared Johnny M. Jordan · EL CAJON, CA25 shared Gary E. Grinsfelder · El Cajon, CA22 shared Jeff M. Kerns · El Cajon, CA20 shared Tony M. Hall · San Diego, CA19 shared George M. Watters · San Diego, CA17 shared Oscar M. Hildebrandt · San Diego, CA16 shared John M. Sullivan · El Cajon, CA16 shared Plum Alley Management LLC · New York, NY15 shared Christopher A. Pultz · New York, NY15 shared Deborah Jackson · New York, NY15 shared Gerald C. Crotty · Morris Plains, NJ14 shared Adam Mizel · Cleveland, OH14 shared Edward A. Gilhuly · GREENWICH, CT14 shared Len H. Kemp · San Diego, CA14 shared William C. Attinger · Carlsbad, CA14 shared Charles S. Goldwater · Studio City, CA14 shared Jin Chul Jhung · Los Angeles, CA13 shared Dan Jacobson · NEW YORK, NY12 shared Matthew W. Finlay · Morristown, NJ12 shared Chris Parada · El Cajon, CA10 shared Timothy G. Works · Vancouver, British Columbia, Canada9 shared

Recent filings (85)

Royale Energy, Inc.Nov 2025 · 6 co-filers$5.7M Royale Energy, Inc.Sep 2025 · 6 co-filers$5.7M Royale Energy, Inc.Nov 2024 · 7 co-filers$5.7M Plum Alley Syndicate 40 LLCApr 2024 · 4 co-filers$294K Plum Alley Syndicate 39 LLCApr 2024 · 4 co-filers$254K Plum Alley Syndicate 37 LLCApr 2024 · 4 co-filers$685K Royale Energy, Inc.Jan 2024 · 8 co-filers$5.7M Royale Energy, Inc.Jan 2024 · 8 co-filers$5.7M Royale Energy, Inc.Aug 2023 · 8 co-filers$5.7M Plum Alley Syndicate 35, LLCJun 2023 · 4 co-filers$570K Plum Alley Syndicate XXXIII, LLCJun 2023 · 4 co-filers$1.1M Plum Alley Syndicate XXXIV, LLCJun 2023 · 4 co-filers$569K QR TW HB Investment LLCDec 2022 · 11 co-filers$125K QR TW Almeria Investment LLCDec 2022 · 11 co-filers$125K Royale Energy, Inc.Dec 2022 · 8 co-filers$5.7M QR Student Housing LLCNov 2022 · 11 co-filers$125K Royale Energy, Inc.Jul 2022 · 8 co-filers$4.4M Royale Energy, Inc.May 2022 · 19 co-filers$4.2M Royale Energy, Inc.Jan 2022 · 19 co-filers$4.2M Royale Energy, Inc.Jun 2021 · 18 co-filers$4.5M Plum Alley Syndicate XI, LLCFeb 2021 · 4 co-filers$2.3M Plum Alley Syndicate XXIV, LLCFeb 2021 · 4 co-filers$1.9M Plum Alley Syndicate XXIII, LLCFeb 2021 · 4 co-filers$887K Plum Alley Syndicate XXII, LLCFeb 2021 · 4 co-filers$627K Plum Alley Syndicate XXI, LLCFeb 2021 · 4 co-filers$953K

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