Investor · London, United Kingdom

Mark M. Mcdonald

Open Mark in the network graph →

Filings

14

SEC Form D

Connections

73

co-filers

Capital

$263K

across filings

Active

May 2022

to Oct 2025

Most-connected co-filers (73)

Daniel Karp · San Francisco, CA10 shared Matthew G. Kinsella · Boulder, CO9 shared Charles Ballew · San Francisco, CA7 shared Joseph W. Hartswell · New York, NY6 shared Gentry Beach · Carrollton, TX6 shared Alfred F. Hurley, Jr · New York, NY6 shared David G. Ogens · New York, NY6 shared Nnadedozie Agbim · New York, NY6 shared John R. Kline · New York, NY6 shared Laura C. Holson · New York, NY6 shared Rome G. Arnold Iii · New York, NY6 shared Ryan Fajkowski · Littleton, CO6 shared Adam B. Weinstein · New York, NY6 shared New Mountain Finance Advisers Bdc, L.L.C · New York, NY5 shared New Mountain Finance Advisers Bdc, L.L.C · New York, NY5 shared Heather A. Lang · Birmingham, AL4 shared Selemon J. Asfaw · Minneapolis, MN4 shared Travis J. Winkey · Dallas, TX4 shared Edward Skrod · JUPITER, FL4 shared Ronnie Corbin · Dallas, TX4 shared William Ruff · Westerville, OH4 shared Rajesh Pawa · SHERIDAN, WY4 shared Upper90 Capital Management, LP · New York, NY4 shared Steven Ferguson · New York, NY3 shared

Recent filings (14)

Transformer TX Holdings, LLCOct 2025 · 24 co-filers$219.4M New Mountain Guardian IV Income Fund, L.L.C.Aug 2024 · 15 co-filers AirFidelity Inc.Jun 2024 · 14 co-filers$1.3M New Mountain Guardian IV BDC, L.L.C.May 2024 · 15 co-filers Transformer TX Holdings, LLCNov 2023 · 26 co-filers$11.3M AirFidelity Inc.Oct 2023 · 14 co-filers$300K Concentric 02 Entrepreneur Co-investment LLPOct 2023 · 5 co-filers Concentric 02 Entrepreneur Co-investment LLPOct 2023 · 5 co-filers Concentric Team Technology II LPOct 2023 · 9 co-filers Concentric Team Technology II LPOct 2023 · 9 co-filers New Mountain Guardian IV Income Fund, L.L.C.Aug 2023 · 14 co-filers New Mountain Guardian IV Unlevered BDC, L.L.C.May 2023 · 14 co-filers New Mountain Guardian IV BDC, L.L.C.May 2023 · 14 co-filers Transformer TX Holdings, LLCAug 2022 · 29 co-filers$13.6M Transformer TX Holdings, LLCMay 2022 · 29 co-filers$591.0M New Mountain Guardian IV BDC L.L.C.May 2022 · 19 co-filers

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