# EDGAR Filing Document

**Accession Number:** 0000319676
**File Stem:** 0001133228-25-013416
**Filing Date:** 2025-12
**Character Count:** 2011
**Document Hash:** c9d7bec9428e7410993cc715728011b5
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001133228-25-013416.hdr.sgml**: 20251212

**ACCESSION NUMBER**: 0001133228-25-013416

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251212

**DATE AS OF CHANGE**: 20251212

**EFFECTIVENESS DATE**: 20251212

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Calvert Management Series
- **CENTRAL INDEX KEY:** 0000319676

**ORGANIZATION NAME:**
- **EIN:** 526211999
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-69565
- **FILM NUMBER:** 251566703

**BUSINESS ADDRESS:**
- **STREET 1:** 2050 M STREET NW
- **CITY:** WASHINGTON
- **STATE:** DC
- **ZIP:** 20036
- **BUSINESS PHONE:** 8002256265

**MAIL ADDRESS:**
- **STREET 1:** 2050 M STREET NW
- **CITY:** WASHINGTON
- **STATE:** DC
- **ZIP:** 20036

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CALVERT TAX FREE RESERVES
- **DATE OF NAME CHANGE:** 19920703

## Series and Classes Contracts Data

### Calvert Floating-Rate Advantage Fund (Series ID: S000059217)

| Class ID   | Class Name                                    | Ticker Symbol   |
|:---|:---|:---|
| C000194063 | Calvert Floating-Rate Advantage Fund Class A  | CFOAX           |
| C000194065 | Calvert Floating-Rate Advantage Fund Class I  | CFOIX           |
| C000194066 | Calvert Floating-Rate Advantage Fund Class R6 | CFORX           |

**CALVERT FLOATING-RATE ADVANTAGE FUND**

**(the "Fund")**

**Supplement to Summary Prospectus, Statutory Prospectus<br> and Statement of Additional Information ("SAI") dated February 1, 2025**

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

Effective December 31, 2025, Ralph H. Hinckley, Jr. will continue to serve as portfolio manager of the Fund. All references to other portfolio managers of the Fund are removed from the Fund's Summary Prospectus, Prospectus and Statement of Additional Information.

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| | |
|:---|:---|
| **December 12, 2025** | **48654-00 12.12.25** |

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