X0508 4 2025-06-13 0001976719 New Mountain Guardian IV Income Fund, L.L.C. NONE 0001606775 Caisse de retraite d'Hydro-Quebec CAISSE DE RETRAITE D'HYDRO-QUEBEC 75 RENE-LEVESQUE BLVD WEST, 5TH FLOOR MONTREAL A8 H2Z 1A4 QUEBEC, CANADA true false Units of Limited Liability Company Interests $10.00 per Unit 2025-06-13 4 P 0 1000000 10 A 7500000 D /s/ Patrick Raynauld 2025-06-17