Investor · Greenbush, MN
Mark T. Karl
Open Mark in the network graph →Filings
16
SEC Form D
Connections
87
co-filers
Capital
$1000K
across filings
Active
Apr 2023
to Dec 2025
Most-connected co-filers (87)
Kory T. Shae · Greenbush, MN13 sharedGabriel T. Mooney · Greenbush, MN10 sharedDavid L. Felch · Greenbush, MN10 sharedWayne L. Czeh · Greenbush, MN10 sharedJames T. Wilde · Greenbush, MN6 sharedDarren I. Friedman · New York, NY6 sharedDavid Jeffrey · London, United Kingdom6 sharedAndrew N. Jebasingh · Franklin, TN6 sharedGodspeed Capital Fund III GP LLC · WASHINGTON, Washington, D.C.5 sharedRussell Platt · West Palm Beach, FL5 sharedMark T. Thune · Greenbush, MN4 sharedBenjamin F. Seidlich · Baltimore, MD4 sharedPaul J. Mcdonald · St. Peter Port, Y74 sharedLindsay Creedon · New York, NY4 sharedDominic T. Slade · London, United Kingdom4 sharedJohn T. Rowland · London, United Kingdom4 sharedPaul T. Guilbert · St Peter Port, Y74 sharedTom T. Carey · St Peter Port, Y74 sharedIan Cash · London, United Kingdom4 sharedThomas T. Boszko · London, United Kingdom4 sharedCyrus De Weck · London, United Kingdom4 sharedNicholas T. Westcott · London, United Kingdom4 sharedMark L. Frosaker · Greenbush, MN4 sharedClark B. Peterson · New York, NY4 shared
Recent filings (16)
BLUE RIDGE DAY SURGERY CENTER L PJan 2026 · 3 co-filers$1.1MARCADIA OUTPATIENT SURGERY CENTER LPJan 2026 · 3 co-filers$295KBorder Bancshares, Inc.Dec 2025 · 23 co-filers$500KBorder Bancshares, Inc.Dec 2025 · 23 co-filers$500KBorder Bancshares, Inc.Oct 2025 · 23 co-filers$750KBorder Bancshares, Inc.Oct 2025 · 23 co-filers$750KBLUE RIDGE DAY SURGERY CENTER L POct 2025 · 6 co-filers$332KUSDH Parent, LLCSep 2025 · 50 co-filers$1.1MUSDH Parent, LLCSep 2025 · 50 co-filers$1.3MBorder Bancshares, Inc.Jun 2025 · 19 co-filers$272KBorder Bancshares, Inc.Jun 2025 · 19 co-filers$272KAIIM Onshore FundApr 2025 · 10 co-filersAlchemy Special Opportunities Fund V L.P.Jan 2025 · 32 co-filers$1.0BASOF V Feeder Fund L.P.Jan 2025 · 32 co-filers$1.0BBorder Bancshares, Inc.Oct 2024 · 8 co-filers$5.2MAIIM Onshore FundApr 2024 · 10 co-filersAIIM Onshore FundMay 2023 · 9 co-filersAlchemy Special Opportunities Fund V L.P.Apr 2023 · 32 co-filersASOF V Feeder Fund L.P.Apr 2023 · 32 co-filers
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Mark in the interactive graph →