Ledger.
Investor · Encinitas, CA

John R. Baumgartner

Open John in the network graph →
Filings
6
SEC Form D
Connections
21
co-filers
Capital
$855K
across filings
Active
Aug 2021
to Dec 2025

Most-connected co-filers (21)

Sven Zabka · Santa Rosa, CA4 sharedEric Armitage · LONDON, United Kingdom2 sharedChristopher Zuehlsdorff · Chicago, IL2 sharedJames Canton · Edmond, OK2 sharedMel Barnes · Edmond, OK2 sharedGreg Sands · San Francisco, CA2 sharedTwin Lions Management LLC · New York, NY2 sharedTwin Lions GP LLC · New York, NY2 sharedJohn Macilwaine · San Francisco, CA2 sharedMatt Streisfeld · San Francisco, CA2 sharedKin Kee · San Francisco, CA2 sharedC7 GP LLC · New York, NY2 sharedc7 Advisors LLC · New York, NY2 sharedEdward J. Levitas · Denver, CO2 sharedChuck Castine · New York, NY2 sharedErik Menten · SITKA, AK2 sharedTucker J. Greene · New York, NY2 sharedRoger W. Insley · New York, NY2 sharedJames E. Clavijo · Miami, FL1 sharedNicola Morris · Scarborough, ME1 sharedHeinz Haller · Midland, MI1 shared

Recent filings (6)

Highnote Platform, Inc.Dec 2025 · 14 co-filers$119.0MHipTraveler Inc.Mar 2023 · 5 co-filers$655KHipTraveler Inc.Nov 2022 · 5 co-filers$200Kc7 Long-Short Fund LPAug 2022 · 5 co-filersc7 Long-Short Fund LPAug 2021 · 5 co-filersHighnote Platform, Inc.Aug 2021 · 10 co-filers$42.6M

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