Investor · Chicago, IL

Jonpaul J. Jonkeer

Open Jonpaul in the network graph →

Filings

5

SEC Form D

Connections

4

co-filers

Capital

$26.5M

across filings

Active

Dec 2021

to Dec 2025

Most-connected co-filers (4)

Tyler J. Resch · Chicago, IL5 shared Le Mans Trading, Llc · Chicago, IL5 shared Le Mans Trading, Llc · Chicago, IL5 shared R. Alden · Chicago, IL1 shared

Recent filings (5)

Mustang Fund LPDec 2025 · 3 co-filers Mustang Fund LPDec 2024 · 4 co-filers Mustang Fund LPDec 2023 · 3 co-filers Mustang Fund LPDec 2022 · 3 co-filers Mustang Fund LPDec 2021 · 3 co-filers

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