Investor · Chicago, IL
Kirsten Olsen
Open Kirsten in the network graph →Capital
$8.0M
across filings
Active
Feb 2023
to Dec 2025
Most-connected co-filers (45)
William Blair Mb Investments GP, L.L.C · CHICAGO, IL10 sharedNicholas Diao · Dover, DE6 sharedOr-Chaim Eisenberg · Dover, DE6 sharedAndrew Turner · Dover, DE6 sharedOmega Strategies Energy Fund GP LLC · Dover, DE6 sharedKatherine Simon · Los Angeles, CA4 sharedApril Stephenson · Los Angeles, CA4 sharedHui Chen · New York, NY4 sharedMatthew Newman · San Juan, Puerto Rico4 sharedThomas Walker · San Juan, Puerto Rico4 sharedJeffrey Thompson · San Juan, Puerto Rico4 sharedBrandon Torres Declet · San Juan, Puerto Rico4 sharedBrian Hoff · San Juan, Puerto Rico4 sharedCristina Colon · San Juan, Puerto Rico4 sharedRobert Lowry · San Juan, Puerto Rico4 sharedKerri L. Dunn · Las Vegas, NV4 sharedNeil Herbert · Cascais, S14 sharedDan O'Brien · White Rock, British Columbia, Canada4 sharedGeoffrey A. Crow · Cascais, S14 sharedMark A. Mauceri · New York, NY4 sharedDaniel K. Spiegelman · SEATTLE, WA2 sharedChris Irwin · Toronto, Ontario, Canada2 sharedKimberly Ann Arntson · Toronto, Ontario, Canada2 sharedJavier Szwarcberg · South San Francisco, CA2 shared Recent filings (10)
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-filersSPRUCE BIOSCIENCES, INC.Feb 2023 · 27 co-filers$53.6MUnusual Machines, Inc.Feb 2023 · 20 co-filers$1.9MUnusual Machines, Inc.Feb 2023 · 20 co-filers$600KUnusual Machines, Inc.Feb 2023 · 20 co-filers$30KUnusual Machines, Inc.Feb 2023 · 20 co-filers$2.3M Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Kirsten in the interactive graph →