Investor · San Francisco, CA

William J. Sieper

Open William in the network graph →

Filings

10

SEC Form D

Connections

74

co-filers

Capital

$6.1M

across filings

Active

Feb 2014

to Apr 2018

Most-connected co-filers (74)

Matthew Oristano · Woodbridge, CT8 shared Thomas Petzinger · Pittsburgh, PA7 shared John M. Schumacher · New York, NY7 shared Matthew Bootman · Pittsburgh, PA7 shared Lianhua J. Qu · Pittsburgh, PA7 shared Amanda V. Parness · New York, NY6 shared Gregory T. Hebrank · Pittsburgh, PA6 shared Rubenstein Partners/Investors GP, LLC · Philadelphia, PA6 shared James M. Barker V · New York, NY6 shared Lee S. Thompson · Everett, WA6 shared Robert M. Barrack · New York, NY6 shared Shelley G. Whittington · Baton Rouge, LA6 shared James A. Diamonstein · Virginia Beach, VA5 shared William J. Mitchell · Pittsburgh, PA5 shared Brian E. Hopcraft · St. Louis, MO5 shared Michael J. Higgins · Cambridge, MA5 shared Charles J. O'Hanlon · Pittsburgh, PA5 shared David Wolfe · Virginia Beach, VA5 shared Gerald E. Mullis · Bedford, IN3 shared Todd M. Stiles · Durham, NC3 shared Adrian N. Wilson · Durham, NC3 shared Scott M. Weiland · Durham, NC3 shared Sophia D. Dilbert · Camana Bay, Cayman Islands3 shared Lester N. Coyle · Boca Raton, FL3 shared

Recent filings (10)

CRYSTALPLEX CORPFeb 2019 · 22 co-filers$300K CRYSTALPLEX CORPApr 2018 · 18 co-filers$1.0M CRYSTALPLEX CORPApr 2017 · 18 co-filers$1.0M CRYSTALPLEX CORPOct 2016 · 18 co-filers$2.6M CRYSTALPLEX CORPOct 2015 · 18 co-filers$2.1M CRYSTALPLEX CORPFeb 2015 · 12 co-filers$1.6M IAM Mini-Fund 999 LtdMar 2014 · 40 co-filers CRYSTALPLEX CORPFeb 2014 · 11 co-filers$62K III Fund Ltd.Feb 2014 · 31 co-filers III Global Ltd.Feb 2014 · 31 co-filers

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