Form 3 Filing for Eaton Vance Senior Income Trust

This filing details the ownership of auction preferred securities of Eaton Vance Senior Income Trust (EVF) by Royal Bank of Canada (RBC). The shares, totaling 118, are reported on an aggregated basis in accordance with the SEC's Global Exemptive Relief letter. These securities were acquired before RBC became a 10% owner. The filing also includes a Power of Attorney document, appointing individuals to act on behalf of RBC for Section 16 filings under the Securities Exchange Act of 1934. This Power of Attorney remains in effect until revoked or the appointed individuals cease employment with RBC or its affiliates. The document is dated July 6, 2026.