Investor · Brookfield, WI
John F. Syburg
Open John in the network graph →Filings
44
SEC Form D
Connections
57
co-filers
Capital
$13.6M
across filings
Active
Mar 2011
to Dec 2018
Most-connected co-filers (57)
Blackthorne Partners Ltd · Brookfield, WI37 sharedSteven J. Balistreri · Brookfield, WI33 sharedRoss R. Lund · Columbus, WI26 sharedIndaba Partners, Llc · San Francisco, CA24 sharedHarold C. Gentner · Reno, NV21 sharedJoshua E. Prime · San Francisco, CA15 sharedThomas E. Mcconnon · San Francisco, CA15 sharedAnthony A. Hassan · San Francisco, CA15 sharedIndaba Partners, Llc · San Francisco, CA15 sharedDerek C. Schrier · San Francisco, CA15 sharedHank A. Brier · San Francisco, CA12 sharedEd Laczynski · New York, NY9 sharedAndrew M. Dodge · San Francisco, CA9 sharedRichard Kincaid · Hong Kong, Hong Kong9 sharedRob Mancabelli · San Francisco, CA8 sharedAlexander Lasagna · Dublin, Ireland7 sharedMatthew Greenfield · San Francisco, CA5 sharedSteve Balistreri · Delafield, WI4 sharedRamona Bowry · New York, NY3 sharedSteven Rosen · Delray, FL3 sharedMichael J. Darwin · Portland, OR3 sharedJoan M. Jiang · San Francisco, CA3 sharedMark R. Zellmer · New Berlin, WI3 sharedRajeev L. Batra · Seattle, WA3 shared
Recent filings (44)
Shoten Fund LPDec 2025 · 9 co-filersShoten Offshore Fund LPDec 2025 · 9 co-filersBerlon Holdings, LLCJul 2020 · 5 co-filers$400KBerlon Holdings, LLCJul 2020 · 5 co-filers$400KHughes Equipment Company, LLCDec 2018 · 7 co-filers$1.5MIndaba Capital Fund, L.P.Mar 2018 · 15 co-filersIndaba Capital Partners, L.P.Mar 2018 · 15 co-filersIndaba Capital Partners (Cayman), L.P.Mar 2018 · 15 co-filersManageCore, LLCDec 2017 · 10 co-filers$751KIndaba Capital Fund, L.P.Mar 2017 · 14 co-filersIndaba Capital Partners (Cayman), L.P.Mar 2017 · 14 co-filersIndaba Capital Partners, L.P.Mar 2017 · 14 co-filersManageCore, LLCNov 2016 · 8 co-filers$1.4MIndaba Capital Partners, L.P.Mar 2016 · 14 co-filersIndaba Capital Partners (Cayman), L.P.Mar 2016 · 14 co-filersIndaba Capital Fund, L.P.Mar 2016 · 14 co-filersHughes Equipment Company, LLCJan 2016 · 7 co-filers$650KSBI ACQUISITION COMPANY, LLCJun 2015 · 5 co-filers$2.8MDESIGN SPECIALTIES, LLCApr 2015 · 7 co-filers$3.5MIndaba Capital Partners (Cayman), L.P.Mar 2015 · 11 co-filersIndaba Capital Partners, L.P.Mar 2015 · 11 co-filersIndaba Capital Fund, L.P.Mar 2015 · 11 co-filersIndaba Capital Fund, L.P.Mar 2014 · 11 co-filersIndaba Capital Partners, L.P.Mar 2014 · 11 co-filersIndaba Capital Partners (Cayman), L.P.Mar 2014 · 11 co-filers
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See John in the interactive graph →