Private Placement (Form 8-K)

On September 16, 2025, New Mountain Guardian IV BDC, L.L.C. (the "Company") delivered a capital drawdown notice to its investors relating to the sale of 6,039,480 of the Company's units (the "Units") for an aggregate offering price of $60,394,800, at a price per Unit equal to $10.00. No underwriting discounts or commissions have been or will be paid in connection with the sale of the Units. The sale of the Units is expected to close on September 30, 2025.

The sale of the Units described herein was and will be made pursuant to subscription agreements entered into by the Company and its investors. Under the terms of the subscription agreements, investors are required to fund drawdowns to purchase the Units up to the amount of its capital commitment on an as-needed basis with a minimum of 10 business days' prior notice to investors.

The offer and sale of the Units was exempt from the registration requirements of the Securities Act of 1933, as amended, pursuant to Section 4(a)(2) thereof and Regulation D thereunder.