Investor · CASPER, WY

Greyson Buckingham

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Filings

25

SEC Form D

Connections

158

co-filers

Capital

$5.8M

across filings

Active

Jul 2019

to Oct 2025

Most-connected co-filers (158)

John J. Lee · New York, NY20 shared Tara Righetti · CASPER, WY11 shared Michael B. Benner · New York, NY9 shared Daniel G. D'Orazi · Los Angeles, CA9 shared David Tupper · Vancouver, British Columbia, Canada9 shared Daniel Belldegrun · Los Angeles, CA9 shared Joshua A. Kazam · New York, NY9 shared Scott Saxberg · Calgary, Alberta, Canada9 shared Michael Rose · Campbell, CA9 shared Steven D. Burton · RADNOR, PA9 shared Joshua Bradley · LOS ANGELES, CA9 shared Jeffrey Mandel · New York, NY8 shared Benjamin D. Pierson · New York, NY8 shared Cpcm Daf GP LLC · Charlottesville, VA8 shared Gary H. Grossman · Pismo Beach, CA8 shared Rebecka Belldegrun · Los Angeles, CA8 shared Aaron Sosnick · New York, NY8 shared Bradly Tyler · Parsippany, NJ8 shared Joshua D. Krsnak · Eden Prairie, MN8 shared Robert J. Speyer · New York, NY8 shared Bruce Feuchter · Newport Beach, CA8 shared Robert Garland · Pittsburgh, PA8 shared Ronald G. Netolitzky · VANCOUVER, British Columbia, Canada8 shared Joseph G. Doran · New York, NY8 shared

Recent filings (25)

Koch, Inc.Mar 2026 · 21 co-filers$224.4M Disa Technologies, Inc.Dec 2025 · 20 co-filers$25.0M Disa Technologies, Inc.Dec 2025 · 20 co-filers$25.0M Breakthrough Properties Growth Portfolio II, L.P.Oct 2025 · 30 co-filers ViroMissile, Inc.Jun 2025 · 14 co-filers$15.0M ViroMissile, Inc.Apr 2025 · 14 co-filers$4.0M ViroMissile, Inc.Mar 2025 · 14 co-filers$1.0M Disa Technologies, Inc.Feb 2025 · 20 co-filers$20.0M Disa Technologies, Inc.Feb 2025 · 20 co-filers$20.0M KOCH INDUSTRIES INCMar 2024 · 61 co-filers$75.3M Disa Technologies, Inc.Sep 2023 · 9 co-filers$15.0M Disa Technologies, Inc.Sep 2023 · 9 co-filers$15.0M Starshot Mojave SPV I, L.P.Jul 2023 · 4 co-filers$803K KOCH INDUSTRIES INCMar 2023 · 58 co-filers$148.3M Starshot Harvest SPV I, L.P.Mar 2023 · 4 co-filers$285K Breakthrough Properties Employee Feeder Fund I, L.P.Apr 2022 · 31 co-filers Breakthrough Properties Income Portfolio, L.P.Nov 2021 · 31 co-filers Disa Technologies, Inc.Oct 2021 · 16 co-filers$3.5M Disa Technologies, Inc.Sep 2021 · 16 co-filers$3.0M Breakthrough Properties Growth Portfolio I, L.P.Aug 2021 · 31 co-filers Breakthrough Properties Growth Portfolio I, L.P.Jun 2021 · 31 co-filers Breakthrough Properties Growth Portfolio I, L.P.Nov 2020 · 31 co-filers Breakthrough Properties Income Portfolio, L.P.Nov 2020 · 31 co-filers Breakthrough Properties Income Portfolio, L.P.Sep 2020 · 31 co-filers Breakthrough Properties Growth Portfolio I, L.P.Sep 2020 · 31 co-filers

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