Senior Loan Liquidity

The investment portfolio comprised senior secured loans to middle‑market companies with a total fair value of $8,317.2 million. Internal performance ratings placed 87 % of the investments at IPR 4 or 5. Liquidity and capital resources come from debt securitizations, unsecured notes, a revolving credit facility with JPMorgan and an unsecured line of credit with GC Advisors. As of March 31 2026, GBDC had roughly $1,049.8 million of remaining availability on its JPMorgan revolving credit facility and $300.0 million of remaining commitments and availability on its GC Advisors unsecured line.