0001653384 2024-01-01 2024-12-31 0001653384 rway:CommonStockParValue0.01PerShareMember 2024-01-01 2024-12-31 0001653384 rway:Sec7.50NotesDue2027Member 2024-01-01 2024-12-31 0001653384 rway:Sec8.00NotesDue2027Member 2024-01-01 2024-12-31 0001653384 2024-06-30 0001653384 2025-03-18 iso4217:USD shares iso4217:USD shares false 2024 FY --12-31 0001653384 false 10-K/A true 2024-12-31 false 814-01180 Runway Growth Finance Corp. MD 47-5049745 205 N. Michigan Ave Suite 4200 Chicago IL 60601 312 698-6902 Common Stock, par value $0.01 per share RWAY NASDAQ 7.50% Notes due 2027 RWAYL NASDAQ 8.00% Notes due 2027 RWAYZ NASDAQ No No Yes Yes Non-accelerated Filer false true false false false 322 37347428 34 Deloitte & Touche LLP New York, New York