Form 497 Investment Managers Seri

Each a series (the “Funds”) of Investment Managers Series Trust II

Supplement dated September 15, 2026, to the

Prospectus, Statement of Additional Information,

and Summary Prospectuses, each dated March 31, 2026.

Effective immediately, the Funds’ new website is https://acr-invest.com/. Fund specific information can be accessed at the Funds’ new website.

Please retain this Supplement with your records.