Ledger.
Investor · Green Bay, WI

William Toonen

Open William in the network graph →
Filings
11
SEC Form D
Connections
43
co-filers
Capital
$22.9M
across filings
Active
Apr 2023
to Dec 2025

Most-connected co-filers (43)

Carter Olles · Green Bay, WI11 sharedWilliam Randall · Vancouver, British Columbia, Canada8 sharedSimon Marcotte · Vancouver, British Columbia, Canada8 sharedDavid Keough · Vancouver, British Columbia, Canada8 sharedThomas Klocanas · MIAMI, FL6 sharedThomas E. Martin · Fort Wayne, IN4 sharedCharles Roemers · Bigonville, Luxembourg, Luxembourg4 sharedDavid Thompson · Austin, TX4 sharedJohn A. Ackerley · Grand Cayman, Cayman Islands4 sharedSanjay Yadav · FORT WAYNE, IN4 sharedJud Mackrill · FORT WAYNE, IN4 sharedMatthew Mcgirt · FORT WAYNE, IN4 sharedErin Heck · FORT WAYNE, IN4 sharedKimberly Mackrill · FORT WAYNE, IN4 sharedMREP GP S.a r.l · Luxembourg, Luxembourg4 sharedSarah J. O'Neill · London, United Kingdom4 sharedBrianna Stoecklein · Sheridan, WY4 sharedAlbert P. Behler · NEW YORK, NY3 sharedChristopher Frost · New York, NY3 sharedKatherine Eade · Morrisville, NC2 sharedVictor Cantore · Vancouver, British Columbia, Canada2 sharedRandy Ackerman, M.D · Columbus, OH2 sharedIlan Oren · Palo Alto, CA2 sharedKeith Manchester · Palo Alto, CA2 shared

Recent filings (11)

Ascellus Health, Inc.Mar 2026 · 5 co-filers$2.8MSandstone Pointe TH Investment LLCDec 2025 · 5 co-filers$15.1MSandstone Pointe TH Investment LLCDec 2025 · 5 co-filers$15.1MSandstone Pointe TH Investment LLCDec 2025 · 5 co-filers$15.1MSandstone Pointe TH Investment LLCDec 2025 · 5 co-filers$15.1MSandstone Pointe TH Investment LLCSep 2025 · 5 co-filers$15.1MSandstone Pointe TH Investment LLCSep 2025 · 5 co-filers$15.1MAscellus Health, Inc.May 2025 · 17 co-filers$1.3MATLANTIC LITHOTRIPSY, LLCJan 2024 · 20 co-filers$133KATLANTIC LITHOTRIPSY, LLCJun 2023 · 20 co-filers$51KMammoth Private Capital, LLC - Health & Tech Fund Series 1May 2023 · 17 co-filers$40.0MMammoth Private Capital LLC - Health & Tech Fund Series 2May 2023 · 17 co-filers$40.0MMammoth Private Capital, LLC - Health & Tech Fund Series 1Apr 2023 · 17 co-filers$40.0MMammoth Private Capital LLC - Health & Tech Fund Series 2Apr 2023 · 17 co-filers$40.0M

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