Investor · Minneapolis, MN
Justin Kaufenberg
Open Justin in the network graph →Filings
61
SEC Form D
Connections
266
co-filers
Capital
$50.4M
across filings
Active
Jun 2009
to Mar 2026
Most-connected co-filers (266)
Jeffrey Hinck · Denver, CO25 sharedBrock Noland · Minneapolis, MN17 sharedMikyle Jessen · Mount Pleasaant, SC14 sharedTore Steen · Dallas, TX14 sharedCarlos J. Rodriguez, Sr · Coral Gables, FL14 sharedMichael Stern · New York, NY13 sharedWilliam R. Woo · New York, NY13 sharedJoseph M. Kopilak · New York, NY13 sharedDavid W. Boral · NEW YORK, NY13 sharedAlec J. Hufnagel · New York, NY10 sharedKyle Mcgraw · Oklahoma City, OK10 sharedStephen C. Dutton · New York, NY10 sharedBob Horsewell · Oklahoma City, OK10 sharedRoland Rataj · St. Helier, Y910 sharedJudith Jurica · Dallas, TX10 sharedDerek Schlicker · Alamo, CA10 sharedMichael J. Alessio · Fort Myers, FL10 sharedFrank K. Bynum, Jr · New York, NY7 sharedStanley D. Osborne · New York, NY7 sharedFrank J. Loverro · New York, NY7 sharedPhilip E. Berney · New York, NY7 sharedJoseph A. Lanasa Iii · New York, NY7 sharedMatthew S. Edgerton · New York, NY7 sharedChristopher L. Collins · New York, NY7 shared
Recent filings (61)
Negotiatus Corp.Mar 2026 · 5 co-filers$40.0MAnkored, Inc.Mar 2026 · 1 co-filer$1.5MKAREP VII MOB Co-Investment REIT, LLCJan 2026 · 4 co-filers$115KKAROD II M-REIT, LLCJan 2026 · 4 co-filers$115KKAROD II Origination REIT, L.P.Jan 2026 · 4 co-filers$115KBlankMetal.ai, Inc.Oct 2025 · 16 co-filers$3.0MBlankMetal.ai, Inc.Oct 2025 · 16 co-filers$3.0MHeights Management Holdco, LLCAug 2025 · 11 co-filersAgent Sport, Inc.Aug 2025 · 14 co-filers$6.8MAgent Sport, Inc.Aug 2025 · 14 co-filers$6.8MAgent Sport, Inc.Jul 2025 · 14 co-filers$16.8MAgent Sport, Inc.Jul 2025 · 14 co-filers$16.8MVertical Insure, Inc.Jun 2025 · 14 co-filers$8.5MVertical Insure, Inc.Jun 2025 · 14 co-filers$8.5MKAREP VII REIT, LLCJan 2025 · 6 co-filers$115KSTACK INNOVATION HOLDINGS REIT, LLCJan 2025 · 20 co-filers$125KSTACK INFRASTRUCTURE USA III FOREIGN, LLCJan 2025 · 20 co-filers$125KBond Sports, Inc.Sep 2024 · 10 co-filers$7.6MHeights Management Holdco, LLCAug 2024 · 11 co-filersKelso XI Bison Co-Investment, L.P.Jul 2024 · 72 co-filersMartello Re LPMay 2024 · 22 co-filersMartello Re Feeder LPMay 2024 · 22 co-filersFiduciary Exchange LLCMar 2024 · 24 co-filers$12.0MSI ATL02A REIT, LLCJan 2024 · 20 co-filers$125KStack Hayward Parcel Holdings, LLCJan 2024 · 19 co-filers$125K
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Justin in the interactive graph →