Investor · Madison, WI

Brian Wiegand

Open Brian in the network graph →

Filings

56

SEC Form D

Connections

276

co-filers

Capital

$4.5M

across filings

Active

Apr 2017

to May 2020

Most-connected co-filers (276)

Edward R. Barrientos · Arlington, VA14 shared Ryan J. Healy · Arlington, VA14 shared Erik S. Johnson · Madison, WI14 shared Craig Andler · Madison, WI13 shared Mark J. Mcguire · Middleton, WI11 shared David S. Slayton · Middleton, WI9 shared Eric J. Marmoll · New York, NY9 shared Walter E. Rein · New York, NY9 shared Elloit Tannenbaum · New York, NY9 shared Penelope (. Trunk · Madison, WI9 shared Grant Stousland · Madison, WI7 shared Richelle Martin · Madison, WI6 shared Ken Johnson · Madison, WI6 shared Mark Mcguire · Madison, WI6 shared Bill Reiland · New York, NY5 shared Russell H. Samples · Rockwell, TX5 shared Charlie Goff · Little Chute, WI5 shared Lincoln Isetta · New York, NY5 shared Bryan H. Johnson · Waterloo, NE5 shared Alexander Garcia-Tobar · San Francisco, CA5 shared Christopher Montclare · San Mateo, CA5 shared Marina Hadjipateras · New York, NY5 shared Dhruv Jain · SUNNYVALE, CA5 shared Peter Chung · New York, NY5 shared

Recent filings (56)

Slot Check, Inc.Aug 2025 · 7 co-filers$500K Slot Check, Inc.Aug 2025 · 7 co-filers$500K Slot Check, Inc.Jan 2025 · 8 co-filers$1.2M Morgan Stanley Expansion Equity IX Investment Team LEF L.P.Jun 2023 · 14 co-filers Slot Check, Inc.Mar 2023 · 5 co-filers$500K Slot Check, Inc.Mar 2023 · 8 co-filers$1.0M North Haven Expansion Credit II LPFeb 2023 · 14 co-filers North Haven Expansion Credit II Offshore Feeder LPFeb 2023 · 14 co-filers North Haven Expansion Credit II LPDec 2021 · 14 co-filers North Haven Expansion Credit II Offshore Feeder LPDec 2021 · 14 co-filers Neighborhood Goods, Inc.Dec 2021 · 13 co-filers$10.0M SONIC FOUNDRY INCAug 2021 · 15 co-filers$3.5M SONIC FOUNDRY INCAug 2021 · 15 co-filers$3.5M Winnow Fund I, L.P.Jan 2021 · 12 co-filers$10.2M Spin Live, Inc.May 2020 · 17 co-filers$1.8M Winnow Fund I, L.P.Nov 2019 · 8 co-filers$10.0M Neighborhood Goods, Inc.Sep 2019 · 7 co-filers$13.0M Lixivia, Inc.Aug 2019 · 6 co-filers$650K Gravy Live, Inc.Jun 2019 · 17 co-filers$1.5M Gravy Live, Inc.Dec 2018 · 16 co-filers$2.0M ENDOLOGIX INC /DE/Aug 2018 · 15 co-filers$210.5M BIRCH PERMIAN HOLDINGS, INC.Apr 2018 · 23 co-filers$775.0M BIRCH PERMIAN HOLDINGS, INC.Apr 2018 · 23 co-filers$6.8M Lixivia, Inc.Apr 2018 · 8 co-filers$500K BIOCEPT INCAug 2017 · 23 co-filers$4.4M

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