Investor · Seattle, WA

Walt Krumbholz

Open Walt in the network graph →

Filings

9

SEC Form D

Connections

65

co-filers

Capital

$102.8M

across filings

Active

Jun 2023

to Mar 2026

Most-connected co-filers (65)

Maggie Weiland · Seattle, WA7 shared Turner Waskom · Seattle, WA5 shared Carl Seip · Seattle, WA5 shared Bruce Brooks · Seattle, WA5 shared Kelly Dulong · Seattle, WA5 shared Lee Winslett · Seattle, WA5 shared Lisa Dow · Seattle, WA5 shared Gregory Bradley · Seattle, WA5 shared Richard J. Schnall · New York, NY3 shared Robert H. Thomas · George Town, Grand Cayman, Cayman Islands3 shared Mary Houghton · Seattle, WA3 shared Norma Hernandez · Seattle, WA3 shared Robert E. Wankel · New York, NY3 shared Casey Tushaus · New York, NY3 shared Alan Okagaki · Seattle, WA3 shared Aman Jeloka · Seattle, WA3 shared Kim Leathley · Seattle, WA3 shared Nicolas Bos · Geneva, V83 shared Tom Hulce · New York, NY3 shared Tim Sweeting · Grand Cayman, Cayman Islands3 shared Robert Ahrens · New York, NY3 shared Gary Saage · Geneva, V83 shared Phoebe Thums · Seattle, WA3 shared Joseph A. Gold · Darien, CT3 shared

Recent filings (9)

SQUADRA VENTURES III, LPMar 2026 · 1 co-filer Craft3Dec 2025 · 65 co-filers$100.0M Craft3Dec 2025 · 65 co-filers$100.0M Craft3Oct 2025 · 65 co-filers$100.0M Craft3Oct 2025 · 65 co-filers$100.0M Craft3Sep 2025 · 65 co-filers$100.0M Craft3Sep 2025 · 65 co-filers$100.0M GT Biopharma, Inc.May 2025 · 14 co-filers$20.0M GT Biopharma, Inc.May 2025 · 14 co-filers$6.0M TriVirum, Inc.Jan 2024 · 17 co-filers$9.4M SQUADRA CEN SPV, LPJun 2023 · 4 co-filers TriVirum, Inc.Jun 2023 · 17 co-filers$4.0M

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