Mastern Investment Management
Lender
20-22F, A-Tower, 465, Gangnam-daero, Seocho-gu, Seoul Republic of Korea
Mastern Investment Management NYC portfolio
$2.2 billion -office 100%; Manhattan 100%*
102th largest portfolio by dollar value
1,176,911 sqft – office 100%; Manhattan 100%
430th largest by SF
Company Activity past 24 months:
Borrower company: 1 for $1.6 billion
Lender company: 1 for $75 million
Top Ten Associated Companies:
Wells Fargo (1), JPMorgan Chase (1), Bank of America (1), Goldman Sachs (1), Deutsche Bank (1)
Top Ten Associated People:
Jeffrey L. Cirillo (1), Robert Kivell (1), Jessica Wong (1), Jessica Fritts (1), Matt Smith (1), Brandon Atkins (1)
Recent activity as company:
• SL Green Realty, Hines, National Pension Service of Korea and Mastern Investment Management borrowed $1.6 billion from Wells Fargo, JPMorgan Chase, Bank of America, Goldman Sachs and Deutsche Bank for 33 East 23 Street on March 26, 2026.
• Daishin Securities borrowed $75 million from Mastern Investment Management for 25 East 47 Street on November 17, 2025.
• SL Green Realty sold 33 East 23 Street for $290.6 million to Mastern Investment Management on November 29, 2021.
Latest Stories:
• Daishin Securities cuts debt in half to $50M at office in Midtown East (November 20, 2023)
• Korea firm Mastern Investment buys $290.6M stake in SL Green’s One Madison (December 20, 2021)
• SL Green borrows $425M from Wells Fargo for rehab of One Madison in Flatiron (December 08, 2020)
Properties: