Antares Strategic Credit Fund II LLC

Item 1.01. Entry into a Material Definitive Agreement. On August 31, 2026, Antares Strategic Credit Fund II LLC (the “Fund”) and Antares Capital Credit Advisers LLC (the “Adviser”) entered into a waiver letter agreement (the “Agreement”) to further extend the waiver of the base management fee and incentive fee payable to the Adviser. Pursuant to the Agreement, the Adviser has agreed to irrevocably waive, which may be effected by a rebate or otherwise, (i) any base management fee due from the Fund to the Adviser under Section 5(a) of the Investment Advisory Agreement, dated June 26, 2025, by and between the Fund and the Adviser (the “Investment Advisory Agreement”) and (ii) any incentive fee due from the Fund to the Adviser under Section 5(b) of the Investment Advisory Agreement from September 1, 2026 through August 31, 2027. The description above is only a summary of the material provisions of the Agreement and is qualified in its entirety by reference to a copy of the Agreement, which is filed as Exhibit 10.1 to this Current Report on Form 8-K and incorporated by reference herein.