Investor · NEW YORK, NY

Sebastiaan Kwakkenbos

Open Sebastiaan in the network graph →

Filings

8

SEC Form D

Connections

23

co-filers

Capital

$9.0M

across filings

Active

May 2021

to Oct 2025

Most-connected co-filers (23)

Mark Livingston · Austin, TX6 shared George Davies · SAN JOSE, CA6 shared Andrew De Montille · Fort Lee, NJ3 shared Thomas W. Turney · Hermosa Beach, CA3 shared Michael Waggoner · Mercer Island, WA3 shared Stewart K. Mehlman · Eastsound, WA3 shared Roy A. Arnold · Eastborough, KS3 shared Gary D. Nusbaum · Westport, CT3 shared Michael R. Biggs · Wichita, KS3 shared Carolyn A. Arnold · Eastborough, KS3 shared Roisin Magee · Toronto, Ontario, Canada3 shared Lawrence B. Rodman · New York, NY3 shared Abby Flamholz · Fort Lee, NJ3 shared Katrina Kennedy · SAN JOSE, CA3 shared Joseph J. Bogdahn · WINTER HAVEN, FL3 shared James W. Rubin · New York, NY3 shared Peter W. Davidson · New York, NY3 shared Matthew Sherman · Wilmington, DE2 shared Kevin P. Hansman · Cincinnati, OH2 shared Buffalo Thorn Capital Management Gp, Llc · NEW YORK, NY1 shared Buffalo Thorn Capital Management, Llc · NEW YORK, NY1 shared Buffalo Thorn Capital Management Gp, Llc · NEW YORK, NY1 shared Buffalo Thorn Capital Management, Llc · NEW YORK, NY1 shared

Recent filings (8)

Buffalo Thorn FEM Fund, LPOct 2025 · 6 co-filers Corumat, Inc.Jan 2025 · 8 co-filers$3.0M Corumat, Inc.Mar 2023 · 8 co-filers$3.5M Buffalo Thorn FEM Fund, LPSep 2022 · 2 co-filers Endeavor Hotel Group LLCJul 2021 · 11 co-filers$3.5M Endeavor Hotel Group LLCJul 2021 · 11 co-filers$3.5M Corumat, Inc.May 2021 · 8 co-filers$500K Endeavor Hotel Group LLCMay 2021 · 11 co-filers$2.5M

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