Investor · Lexington, MA
William P. O'Neill
Open William in the network graph →Capital
$132.1M
across filings
Active
Jul 2019
to Aug 2025
Most-connected co-filers (80)
Eduardo P. Avayu · Lexington, MA12 sharedJill J. Buckley · Lexington, MA9 sharedStephen A. Eckert · Lexington, MA8 sharedLaura J. Daniels · Lexington, MA8 sharedEric J. Newman · Lexington, MA8 sharedMichael D. Testa · Lexington, MA8 sharedRobert J. Haime · Lexington, MA8 sharedAndrew P. Dunham · Lexington, MA8 sharedGregory Webb · New York, NY7 sharedLaurel J. Omert · Lexington, MA7 sharedCarter Griffin · WASHINGTON, Washington, D.C.7 sharedYotam Mann · Brooklyn, NY7 sharedScott Eldridge · Vancouver, British Columbia, Canada7 sharedRyan Rawson · Berkeley, CA7 sharedBuddy Doyle · VANCOUVER, British Columbia, Canada7 sharedJonathan Seeber · Washington, Washington, D.C.7 sharedJohn Bottles · Eagle, ID7 sharedAlex Newman · Berkeley, CA7 sharedKarunya Lakshmi · New York, NY7 sharedMichael Gregoire · New York, NY7 sharedLarry Biagini · New York, NY7 sharedBinny Jassal · VANCOUVER, British Columbia, Canada7 sharedAdolph Lombardi · Columbus, OH7 sharedThomas Yingling · Vancouver, British Columbia, Canada7 shared Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See William in the interactive graph →