Insider Ownership Filing for Robert Tanner Page

This filing reports the initial ownership of securities by Robert Tanner Page, identified by CIK 0002090022. Mr. Page, who holds the position of VP and Treasurer at Nuveen S&P 500 Dynamic Overwrite Fund (SPXX), has reported owning no securities directly as of September 10, 2025. The filing is made under Form 3, indicating a statement of beneficial ownership of securities by a person who has just become a beneficial owner. The filing was signed by Mark L. Winget under power of attorney.