Investor · Cambridge, MA
John Davis
Open John in the network graph →Filings
16
SEC Form D
Connections
75
co-filers
Capital
$52.3M
across filings
Active
Dec 2009
to Aug 2025
Most-connected co-filers (75)
Adam Walker · Hopewell Junction, NY9 sharedDr. Pamela J. Kirby · Amersham, Bucks, United Kingdom9 sharedDerek A. Mapp · London, United Kingdom8 sharedMark P. O'Flynn · Washington, Washington, D.C.7 sharedKaren H. Williams · Washington, Washington, D.C.7 sharedPeter Rigby · Fairford, Gloucestershire, United Kingdom7 sharedKaril Reibold · Portsmouth, NH6 sharedJorge Gutierrez · Ventura, CA4 sharedJ. W. West · Portsmouth, NH4 sharedDr. Brendan O'Neill · Sutton, Surrey, United Kingdom4 sharedStephen A. Carter · London, United Kingdom4 sharedLena Freiberg · Ventura, CA3 sharedWilliam Zeigler · Washington, Washington, D.C.3 sharedSever Totia · Bethesda, MD3 sharedDouglas V. Pope · Washington, Washington, D.C.3 sharedGiammalva J. Anthony · Greenwich, CT2 sharedScott E. Dakers · Grand Cayman, Cayman Islands2 sharedBrendan A. O'Neill · London, United Kingdom2 sharedPeter M. Young · George Town, Cayman Islands2 sharedCindy A. Rose · London, United Kingdom2 sharedJoseph S. Hardiman · London, United Kingdom1 sharedErik S. Bertsen · London, United Kingdom1 sharedKimberly A. Arntson · Vancouver, British Columbia, Canada1 sharedErik Mulloy · Edmond, OK1 shared
Recent filings (16)
Everstone Capital Partners V Pte. LtdAug 2025 · 8 co-filersEverstone Capital Partners V Pte. LtdAug 2025 · 8 co-filersMagenta Therapeutics, Inc.Apr 2018 · 28 co-filers$52.3MMagenta Therapeutics, Inc.Apr 2018 · 28 co-filers$52.3MINFORMA PLCJun 2015 · 17 co-filers$13.4MINFORMA PLCJun 2015 · 17 co-filers$13.4MTMG HOLDINGS, LLCMay 2013 · 4 co-filers$9.0MTMG HOLDINGS, LLCMay 2013 · 4 co-filers$9.0MINFORMA PLCApr 2013 · 13 co-filers$12.7MINFORMA PLCApr 2013 · 13 co-filers$12.7MOCC Equity Members, LLCNov 2012 · 10 co-filers$500KOCC Equity Members, LLCNov 2012 · 10 co-filers$500KINFORMA PLCApr 2012 · 11 co-filers$12.0MVarsity Worth Hills, LPMay 2011 · 2 co-filers$300KVarsity Worth Hills, LPMay 2011 · 2 co-filers$300KINFORMA PLCMar 2011 · 11 co-filers$10.4MINFORMA PLCApr 2010 · 11 co-filers$8.8MBANKVEST INCDec 2009 · 10 co-filers$12.0MBANKVEST INCDec 2009 · 10 co-filers$12.0MINFORMA PLCAug 2009 · 11 co-filers$7.6MINFORMA PLCJul 2009 · 11 co-filers$6.1MINFORMA PLCJun 2009 · 11 co-filersSOUTHPORT ENERGY PLUS OFFSHORE FUND INCMar 2009 · 5 co-filersSouthport Energy Alternatives Offshore Fund IncMar 2009 · 5 co-filers
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See John in the interactive graph →