# EDGAR Filing Document

**Accession Number:** 0001258623
**File Stem:** 0001133228-25-013418
**Filing Date:** 2025-12
**Character Count:** 1689
**Document Hash:** cf4d8c3151bf16d0ef4a6fdd3960ba4a
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001133228-25-013418.hdr.sgml**: 20251212

**ACCESSION NUMBER**: 0001133228-25-013418

**CONFORMED SUBMISSION TYPE**: 424B3

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251212

**DATE AS OF CHANGE**: 20251212

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Eaton Vance Senior Floating-Rate Trust
- **CENTRAL INDEX KEY:** 0001258623

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** 424B3
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-266343
- **FILM NUMBER:** 251566708

**BUSINESS ADDRESS:**
- **STREET 1:** ONE POST OFFICE SQUARE
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02109
- **BUSINESS PHONE:** 617-482-8260

**MAIL ADDRESS:**
- **STREET 1:** ONE POST OFFICE SQUARE
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02109

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** EATON VANCE SENIOR FLOATING RATE TRUST
- **DATE OF NAME CHANGE:** 20031017

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** EATON VANCE SENIOR FLOATING RATE FUND
- **DATE OF NAME CHANGE:** 20030806

---

| |
|:---|
| **Filed pursuant to Rule 424(b)(3)** |
| **File No. 333-266343** |

---

**EATON VANCE SENIOR FLOATING-RATE TRUST**

**(the "Trust")**

**Supplement to Prospectus and Statement of Additional Information ("SAI") dated March 31, 2023**

**as may be supplemented and/or revised from time to time**

Effective December 31, 2025, Peter Campo and Daniel P. McElaney will continue to serve as portfolio managers of the Trust. All references to other portfolio managers of the Trust are removed from the Trust's Prospectus and Statement of Additional Information.

**December 12, 2025**