# EDGAR Filing Document

**Accession Number:** 0000795422
**File Stem:** 0000795422-25-000129
**Filing Date:** 2025-12
**Character Count:** 2990
**Document Hash:** 191a13c19a0732fd4482fc53437b60b5
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000795422-25-000129.hdr.sgml**: 20251212

**ACCESSION NUMBER**: 0000795422-25-000129

**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:** FIDELITY ADVISOR SERIES II
- **CENTRAL INDEX KEY:** 0000795422

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-06516
- **FILM NUMBER:** 251566772

**BUSINESS ADDRESS:**
- **STREET 1:** 245 SUMMER STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02210
- **BUSINESS PHONE:** 617-563-7000

**MAIL ADDRESS:**
- **STREET 1:** 245 SUMMER STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02210

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FIDELITY DIVERSIFIED TRUST
- **DATE OF NAME CHANGE:** 19930706

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PLYMOUTH FUND
- **DATE OF NAME CHANGE:** 19920130

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PLYMOUTH INVESTMENT SERIES
- **DATE OF NAME CHANGE:** 19911204

## Series and Classes Contracts Data

### Fidelity Advisor Strategic Income Fund (Series ID: S000005152)

| Class ID   | Class Name                     | Ticker Symbol   |
|:---|:---|:---|
| C000014110 | Class A                        | FSTAX           |
| C000014112 | Class C                        | FSRCX           |
| C000014113 | Class M                        | FSIAX           |
| C000014114 | Class I                        | FSRIX           |
| C000200078 | Fidelity Strategic Income Fund | FADMX           |
| C000204998 | Class Z                        | FIWDX           |

**Supplement to the Fidelity Advisor® Strategic Income Fund March 1, 2025 Summary Prospectus**

*It is expected that Mr. O'Neil will transition off the fund effective on or about September 30, 2026. Celso Munoz will become a Co-Lead Portfolio Manager for the fund effective January 1, 2026.*

Effective January 1, 2026, the following information supplements information found in the "Fund Summary" section under the "Portfolio Manager(s)" heading.

Celso Munoz (Co-Lead Portfolio Manager) has managed the fund since 2026.

RSI-SUSTK-1225-101 1.9897490.101 December 12, 2025

**Supplement to the Fidelity Advisor® Strategic Income Fund Class A, Class M, Class C, Class I, and Class Z March 1, 2025 Summary Prospectus**

*It is expected that Mr. O'Neil will transition off the fund effective on or about September 30, 2026. Celso Munoz will become a Co-Lead Portfolio Manager for the fund effective January 1, 2026.*

Effective January 1, 2026, the following information supplements information found in the "Fund Summary" section under the "Portfolio Manager(s)" heading.

Celso Munoz (Co-Lead Portfolio Manager) has managed the fund since 2026.

SI-SUSTK-1225-104 1.9881417.104 December 12, 2025