X0708 D LIVE 0002139827 FLAT ROCK INSTITUTIONAL HIGH INCOME FUND, LP 190 ELGIN AVENUE GEORGE TOWN E9 CAYMAN ISLANDS KY1-9008 307-500-5202 CAYMAN ISLANDS None None Limited Partnership true 2026 Ryan Ripp 680 S. Cache Street, Suite 100 P.O. Box 7403 Jackson WY WYOMING 83001 Executive Officer Robert K. Gunewald 680 S. Cache Street, Suite 100 P.O. Box 7403 Jackson WY WYOMING 83001 Executive Officer Shiloh Bates 680 S. Cache Street, Suite 100 P.O. Box 7403 Jackson WY WYOMING 83001 Executive Officer Pooled Investment Fund Other Investment Fund false Decline to Disclose 06b 3C 3C.1 false 2026-05-15 true true false 0 Indefinite 1500000 Indefinite false 3 0 0 0 false FLAT ROCK INSTITUTIONAL HIGH INCOME FUND, LP /s/ Ryan Ripp Ryan Ripp Co-President and CEO of the General Part 2026-06-12