Investor · Larkspur, CA

Greenstone Partners, LLC

Open Greenstone in the network graph →

Filings

6

SEC Form D

Connections

3

co-filers

Capital

$358.0M

across filings

Active

Apr 2021

to Mar 2026

Most-connected co-filers (3)

Gregory M. Tusher · Larkspur, CA6 shared Mitra J. O'Neill · New York, NY5 shared Todd Lapenna · La Jolla, CA5 shared

Recent filings (6)

Greenstone Partners, L.P.Mar 2026 · 1 co-filer Greenstone Partners, L.P.Mar 2025 · 4 co-filers Greenstone Partners, L.P.Mar 2025 · 4 co-filers Greenstone Partners, L.P.Mar 2024 · 4 co-filers Greenstone Partners, L.P.Mar 2024 · 4 co-filers Greenstone Partners, L.P.Apr 2023 · 4 co-filers Greenstone Partners, L.P.Apr 2023 · 4 co-filers Greenstone Partners, L.P.Apr 2022 · 4 co-filers Greenstone Partners, L.P.Apr 2022 · 4 co-filers Greenstone Partners, L.P.Apr 2021 · 4 co-filers Greenstone Partners, L.P.Apr 2021 · 4 co-filers

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