Investor · CHICAGO, IL
William Blair Mb Investments GP, L.L.C
Open William in the network graph →Filings
40
SEC Form D
Connections
101
co-filers
Capital
—
across filings
Active
Jan 2019
to Feb 2022
Most-connected co-filers (101)
James H. Wildman · CHICAGO, IL24 sharedFrederick Wilmot · Louisville, CO21 sharedMelissa M. Bodford · Chicago, IL21 sharedAlice M. Milligan · Chicago, IL13 sharedGreg Keller · Louisville, CO13 sharedKirsten Olsen · Chicago, IL10 sharedEvan L. Yerega · Cleveland, OH8 sharedRitu Lal · Palo Alto, CA8 sharedAndrew Turner · Dover, DE6 sharedNicholas Diao · Dover, DE6 sharedOr-Chaim Eisenberg · Dover, DE6 sharedOmega Strategies Energy Fund GP LLC · Dover, DE6 sharedPeter J. Lee · Eden Prairie, MN5 sharedMark A. Mauceri · New York, NY4 sharedCristina Colon · San Juan, Puerto Rico4 sharedJeffrey Thompson · San Juan, Puerto Rico4 sharedRobert Lowry · San Juan, Puerto Rico4 sharedDan O'Brien · White Rock, British Columbia, Canada4 sharedKerri L. Dunn · Las Vegas, NV4 sharedThomas Walker · San Juan, Puerto Rico4 sharedBrandon Torres Declet · San Juan, Puerto Rico4 sharedBrian Hoff · San Juan, Puerto Rico4 sharedMatthew Newman · San Juan, Puerto Rico4 sharedKatherine Simon · Los Angeles, CA4 shared
Recent filings (40)
Real Established Inc.Feb 2026 · 1 co-filer$12.0MWilliam Blair MB Investments, L.P. - OC 2025 SeriesDec 2025 · 5 co-filersWilliam Blair MB Investments, L.P. - OC 2025 SeriesDec 2025 · 5 co-filersSPRUCE BIOSCIENCES, INC.Oct 2025 · 25 co-filers$50.0MReal Established Inc.Mar 2025 · 5 co-filers$4.0MWilliam Blair MB Investments, L.P. - WD SeriesJan 2025 · 5 co-filersWilliam Blair MB Investments, L.P. - WD SeriesJan 2025 · 5 co-filersSunrise Capital V (Non-US), L.P.Apr 2024 · 9 co-filersSPRUCE BIOSCIENCES, INC.Feb 2023 · 27 co-filers$53.6MUnusual Machines, Inc.Feb 2023 · 20 co-filers$600KUnusual Machines, Inc.Feb 2023 · 20 co-filers$30KUnusual Machines, Inc.Feb 2023 · 20 co-filers$2.3MUnusual Machines, Inc.Feb 2023 · 20 co-filers$1.9MWILLIAM BLAIR MB INVESTMENTS, L.P. -- CXT 2022 SERIESOct 2022 · 5 co-filersWILLIAM BLAIR MB INVESTMENTS, L.P. -- BRPE FIII 2022 SERIESJun 2022 · 5 co-filersWILLIAM BLAIR MB INVESTMENTS, L.P. -- SCP FIII 2022 SeriesMay 2022 · 5 co-filersWILLIAM BLAIR MB INVESTMENTS, L.P. -- ITYC 2022 SERIESMar 2022 · 5 co-filersWILLIAM BLAIR MB INVESTMENTS, L.P. -- TCP FIII 2022 SERIESMar 2022 · 5 co-filersWILLIAM BLAIR MB INVESTMENTS, L.P. -- HII 2022 SERIESMar 2022 · 5 co-filersWILLIAM BLAIR MB INVESTMENTS, L.P. -- PCTI 2022 SERIESFeb 2022 · 5 co-filersWILLIAM BLAIR MB INVESTMENTS, L.P. -- FICI 2022 SERIESFeb 2022 · 5 co-filersWILLIAM BLAIR MB INVESTMENTS, L.P. -- HC FII 2021 SERIESDec 2021 · 5 co-filersWILLIAM BLAIR MB INVESTMENTS, L.P. -- M13V FIII 2021 SERIESNov 2021 · 5 co-filersWILLIAM BLAIR MB INVESTMENTS, L.P. -- MOG FIII 2021 SERIESOct 2021 · 5 co-filersWILLIAM BLAIR MB INVESTMENTS, L.P. -- UGSI 2021 SERIESAug 2021 · 5 co-filers
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See William in the interactive graph →