Investor · Doylestown, PA

Steven Mason

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Filings

17

SEC Form D

Connections

31

co-filers

Capital

$30.7M

across filings

Active

Jul 2021

to Aug 2025

Most-connected co-filers (31)

Southeastern Asset Management, Inc · Memphis, TN9 shared Joey Antonio · Wilmington, DE9 shared Jessica Pressgrove · Wilmington, DE9 shared Investment Adviser KW Investment Adviser, LLC · Beverly Hills, CA9 shared Sal Detrane · Langhorne, PA8 shared Southeastern Asset Management (GP) LLC · Wilmington, DE7 shared Maxx Karr · Bozeman, MT6 shared Julie O'Hara · Grand Cayman, Cayman Islands6 shared Val Zlatev · New York, NY6 shared Scott C. Jackson · Cambridge, MA6 shared Shane Criddle · LIBERTY LAKE, WA6 shared Matt Auriemma · Grand Cayman, Cayman Islands6 shared Analog Century Management LP · New York, NY6 shared Eddie Soleymani · Dover, DE6 shared Christopher Jane · Bozeman, MT6 shared Jennifer Jane · Bozeman, MT6 shared Timothy C. Keutzer · Cambridge, MA5 shared Doug Burton · Wilmington, DE5 shared Robb Horlacher · LIBERTY LAKE, WA5 shared Richard Vogel · Boston, MA3 shared Garrick Bernstein · Mountain View, CA3 shared Empactful Capital Fund Ii Gp, L.L.C · Doylestown, PA2 shared Hunter Horsley · San Francisco, CA2 shared Karl F. Jaeger · Atlanta, GA2 shared

Recent filings (17)

Analog Century Market Neutral Fund, Ltd.Aug 2025 · 10 co-filers Analog Century Market Neutral Master Fund, LtdAug 2025 · 10 co-filers Southeastern European Concentrated Opportunities LPAug 2025 · 11 co-filers Southeastern European Concentrated Opportunities LPAug 2025 · 11 co-filers Analog Century Market Neutral Master Fund, LtdApr 2025 · 10 co-filers Southeastern European Concentrated Opportunities LPAug 2024 · 11 co-filers Analog Century Market Neutral Master Fund, LtdApr 2024 · 10 co-filers Analog Century Market Neutral Fund, Ltd.Apr 2024 · 10 co-filers Empactful Capital Fund II, L.P.Nov 2023 · 7 co-filers$50.0M Southeastern European Concentrated Opportunities LPAug 2023 · 9 co-filers SAM Asia Pacific Opportunities Fund LPJul 2023 · 12 co-filers Empactful Capital Fund II, L.P.Nov 2022 · 7 co-filers$50.0M Southeastern European Concentrated Opportunities LPAug 2022 · 12 co-filers SAM Asia Pacific Opportunities Fund LPJul 2022 · 12 co-filers Southeastern European Concentrated Opportunities LPAug 2021 · 12 co-filers Analog Century Spectrum Master Fund, Ltd.Aug 2021 · 10 co-filers SAM Asia Pacific Opportunities Fund LPJul 2021 · 12 co-filers

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