Ledger.
Investor · San Francisco, CA

William F. Willis

Open William in the network graph →
Filings
12
SEC Form D
Connections
54
co-filers
Capital
across filings
Active
Feb 2010
to Jan 2012

Most-connected co-filers (54)

Shelly Guyer · San Francisco, CA10 sharedDavid F. Mosher · CHICAGO, IL6 sharedJustin Olita · Collierville, TN6 sharedHal W. Reynolds · Los Angeles, CA6 sharedDaryl L. Smetana · Costa Mesa, CA6 sharedChristopher J. Mcgowan · CHICAGO, IL6 sharedJoseph V. Amato · New York, NY6 sharedVolkan Ozguz · Costa Mesa, CA6 sharedTimothy M. Hurd · Chicago, IL6 sharedBoris M. Wertz · Vancouver, British Columbia, Canada6 shared(company) Thornburg Investment Management Inc · Santa Fe, NM6 sharedThomas D. Stevens · Los Angeles, CA6 sharedEverett D. Stephens · Eads, TN6 sharedMike Maples, Jr · San Francisco, CA6 sharedPeter Kenefick · Costa Mesa, CA6 sharedNick M. Hanauer · Seattle, WA6 sharedJohn D. Ogle · Memphis, TN6 sharedBen Chereskin · CHICAGO, IL6 sharedDavid Mancilla · New York, NY6 sharedRaymond Sullivan · New York, NY6 sharedGeorge Peinado · Denver, CO6 sharedThomas M. Goldstein · CHICAGO, IL6 sharedJon C. Zimmerman · Hershey, PA6 sharedJohn W. Hadden · New York, NY6 shared

Recent filings (12)

Rare Air Health, Inc.Jan 2026 · 2 co-filers$4.7MiRhythm Technologies, Inc.Jan 2012 · 19 co-filers$22.1MiRhythm Technologies, Inc.Oct 2011 · 19 co-filers$22.1MIRhythm Technologies, Inc.May 2011 · 17 co-filers$15.0MIRhythm Technologies IncMay 2010 · 12 co-filers$10.0MMadison Dearborn Capital Partners VI-A, L.P.Feb 2010 · 28 co-filers$6.8BMadison Dearborn Capital Partners VI-B, L.P.Feb 2010 · 28 co-filers$6.8BMadison Dearborn Capital Partners VI-C, L.P.Feb 2010 · 28 co-filers$4.4BMADISON DEARBORN CAPITAL PARTNERS VI EXECUTIVE-A, L.P.Feb 2010 · 28 co-filers$125.0MMADISON DEARBORN CAPITAL PARTNERS OFFSHORE VI-C, L.P.Feb 2010 · 26 co-filers$1.0BMADISON DEARBORN CAPITAL PARTNERS VI EXECUTIVE-B, L.P.Feb 2010 · 28 co-filers$125.0MIRhythm Technologies IncApr 2009 · 8 co-filers$6.5M

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