# EDGAR Filing Document

**Accession Number:** 0000035315
**File Stem:** 0000035402-26-003543
**Filing Date:** 2026-6
**Character Count:** 12504
**Document Hash:** c27077206f7bbb1ecab9d1daa593e103
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000035402-26-003543.hdr.sgml**: 20260605

**ACCESSION NUMBER**: 0000035402-26-003543

**CONFORMED SUBMISSION TYPE**: N-MFP3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260531

**FILED AS OF DATE**: 20260605

**DATE AS OF CHANGE**: 20260605

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** FIDELITY SALEM STREET TRUST
- **CENTRAL INDEX KEY:** 0000035315

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0430

**FILING VALUES:**
- **FORM TYPE:** N-MFP3
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-02105
- **FILM NUMBER:** 261067042

**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 FIXED INCOME TRUST
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FIDELITY FLEXIBLE BOND FUND
- **DATE OF NAME CHANGE:** 19860904

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FIDELITY CORPORATE BOND FUND INC
- **DATE OF NAME CHANGE:** 19851225

## Series and Classes Contracts Data

### Fidelity SAI Municipal Money Market Fund (Series ID: S000059873)

| Class ID   | Class Name                               | Ticker Symbol   |
|:---|:---|:---|
| C000195869 | Fidelity SAI Municipal Money Market Fund | FMQXX           |

# Form N-MFP3: Monthly Schedule of Portfolio Holdings

## N-MFP: Filer Information
**Submission Type:** N-MFP3
**CIK:** 0000035315

### General Information

**Report for (YYYY-MM-DD):** 2026-05-31

**Registrant Full Name:** Fidelity Salem Street Trust

**CIK Number of Registrant:** 0000035315

**LEI of Registrant:** S4W85DGKOEJ24DPRB829

**Name of Series:** Fidelity SAI Municipal Money Market Fund

**LEI of Series:** 5493009807C34QG2U580

**EDGAR Series Identifier:** S000059873

**Total number of share classes in the series:** 1

**Is this the fund's final filing on Form N-MFP?:** No

**Has the fund acquired or merged with another fund?:** No

## Part A: Series-Level Information about the Fund

### Service Providers
| Role                          | Details                                                                      | File/CIK Number   |
|:---|:---|:---|
| Investment Adviser            | Fidelity Management & Research Company LLC                                   | 801-07884         |
| Independent Public Accountant | PricewaterhouseCoopers LLP<br>City: Boston<br>State: MA                      |  |
| Administrator                 | Fidelity Service Company                                                     |  |
| Transfer Agent                | Fidelity Investments Institutional Operations Company LLC<br>CIK: 0000862124 | 084-01839         |

### Fund Characteristics & Assets

- **Securities Act File Number:** 002-41839

- **Is this a Feeder Fund?:** No

- **Is this a Master Fund?:** No

- **Is this series for insurance company separate accounts?:** No

- **Money Market Fund Category:** Other Tax Exempt

- **Is this a Retail Money Market Fund?:** No

- **WAM:** 7 days

- **WAL:** 7 days

- **Total Value of Portfolio Securities:** $44938165.32

- **Amortized Cost of Portfolio Securities:** $44938520.77

- **Cash:** $3246.34

- **Total Other Assets:** $184870.80

- **Total Liabilities:** $107665.48

- **Net Assets of Series:** $45018972.43

- **Number of Shares Outstanding (Series):** 45009745.2300

- **Does the fund seek to maintain a stable price per share?:** No

- **Is cash management vehicle an affiliated fund?:** Yes

- **Does the fund apply liquidity fees?:** No

### Daily & Weekly Liquid Assets
| Date       | Daily Liquid Assets ($)   | Weekly Liquid Assets ($)   | Daily Liquid Assets (%)   | Weekly Liquid Assets (%)   |
|:---|:---|:---|:---|:---|
| 2026-05-01 |  | $44948354.92               |  | 99.0000%                   |
| 2026-05-04 |  | $44942833.50               |  | 99.0000%                   |
| 2026-05-05 |  | $44942833.50               |  | 99.0000%                   |
| 2026-05-06 |  | $44942833.50               |  | 99.0000%                   |
| 2026-05-07 |  | $44942833.50               |  | 99.0000%                   |
| 2026-05-08 |  | $44942833.50               |  | 99.0000%                   |
| 2026-05-11 |  | $44942833.50               |  | 99.0000%                   |
| 2026-05-12 |  | $44948868.59               |  | 99.0000%                   |
| 2026-05-13 |  | $44948868.59               |  | 99.0000%                   |
| 2026-05-14 |  | $44948868.59               |  | 99.0000%                   |
| 2026-05-15 |  | $44948868.59               |  | 99.0000%                   |
| 2026-05-18 |  | $44948868.59               |  | 99.0000%                   |
| 2026-05-19 |  | $44941773.52               |  | 99.0000%                   |
| 2026-05-20 |  | $44941773.52               |  | 99.0000%                   |
| 2026-05-21 |  | $44941773.52               |  | 99.0000%                   |
| 2026-05-22 |  | $44941773.52               |  | 99.0000%                   |
| 2026-05-26 |  | $44941773.52               |  | 99.0000%                   |
| 2026-05-27 |  | $44941767.11               |  | 99.0000%                   |
| 2026-05-28 |  | $44941767.11               |  | 99.0000%                   |
| 2026-05-29 |  | $44941767.11               |  | 99.0000%                   |

### 7-Day Gross Yield
| Date       | 7-Day Gross Yield   |
|:---|:---|
| 2026-05-01 | 3.5100%             |
| 2026-05-04 | 3.0300%             |
| 2026-05-05 | 2.8000%             |
| 2026-05-06 | 2.6600%             |
| 2026-05-07 | 2.5700%             |
| 2026-05-08 | 2.4800%             |
| 2026-05-11 | 2.5400%             |
| 2026-05-12 | 2.5500%             |
| 2026-05-13 | 2.5400%             |
| 2026-05-14 | 2.4700%             |
| 2026-05-15 | 2.4500%             |
| 2026-05-18 | 2.2000%             |
| 2026-05-19 | 2.1500%             |
| 2026-05-20 | 2.0200%             |
| 2026-05-21 | 1.9300%             |
| 2026-05-22 | 1.8400%             |
| 2026-05-26 | 1.8700%             |
| 2026-05-27 | 1.8000%             |
| 2026-05-28 | 1.8300%             |
| 2026-05-29 | 1.8700%             |

### Daily Net Asset Value per Share (Series)
| Date       | Net Asset Value per Share   |
|:---|:---|
| 2026-05-01 | 1.0002                      |
|  |  |
| 2026-05-04 | 1.0002                      |
|  |  |
| 2026-05-05 | 1.0002                      |
|  |  |
| 2026-05-06 | 1.0002                      |
|  |  |
| 2026-05-07 | 1.0002                      |
|  |  |
| 2026-05-08 | 1.0002                      |
|  |  |
| 2026-05-11 | 1.0002                      |
|  |  |
| 2026-05-12 | 1.0002                      |
|  |  |
| 2026-05-13 | 1.0002                      |
|  |  |
| 2026-05-14 | 1.0002                      |
|  |  |
| 2026-05-15 | 1.0002                      |
|  |  |
| 2026-05-18 | 1.0002                      |
|  |  |
| 2026-05-19 | 1.0002                      |
|  |  |
| 2026-05-20 | 1.0002                      |
|  |  |
| 2026-05-21 | 1.0002                      |
|  |  |
| 2026-05-22 | 1.0002                      |
|  |  |
| 2026-05-26 | 1.0002                      |
|  |  |
| 2026-05-27 | 1.0002                      |
|  |  |
| 2026-05-28 | 1.0002                      |
|  |  |
| 2026-05-29 | 1.0002                      |
|  |  |

## Part B: Class-Level Information about the Fund

### Class: Fidelity SAI Municipal Money Market Fund

- **Minimum Initial Investment:** $1.00

- **Net Assets of Class:** $45018972.43

- **Number of Shares Outstanding:** 45009745.2300

- **Expense Reimbursement/Waiver:** 13177.33

**Daily Net Asset Value per Share (Class)**
| Date       | NAV per Share   |
|:---|:---|
| 2026-05-01 | 1.0002          |
|  |  |
| 2026-05-04 | 1.0002          |
|  |  |
| 2026-05-05 | 1.0002          |
|  |  |
| 2026-05-06 | 1.0002          |
|  |  |
| 2026-05-07 | 1.0002          |
|  |  |
| 2026-05-08 | 1.0002          |
|  |  |
| 2026-05-11 | 1.0002          |
|  |  |
| 2026-05-12 | 1.0002          |
|  |  |
| 2026-05-13 | 1.0002          |
|  |  |
| 2026-05-14 | 1.0002          |
|  |  |
| 2026-05-15 | 1.0002          |
|  |  |
| 2026-05-18 | 1.0002          |
|  |  |
| 2026-05-19 | 1.0002          |
|  |  |
| 2026-05-20 | 1.0002          |
|  |  |
| 2026-05-21 | 1.0002          |
|  |  |
| 2026-05-22 | 1.0002          |
|  |  |
| 2026-05-26 | 1.0002          |
|  |  |
| 2026-05-27 | 1.0002          |
|  |  |
| 2026-05-28 | 1.0002          |
|  |  |
| 2026-05-29 | 1.0002          |
|  |  |

**Daily Shareholder Flows**
| Date       | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| 2026-05-01 | $114041.13                | $0.00                   |
| 2026-05-04 | $0.00                     | $0.00                   |
| 2026-05-05 | $0.00                     | $0.00                   |
| 2026-05-06 | $0.00                     | $0.00                   |
| 2026-05-07 | $0.00                     | $0.00                   |
| 2026-05-08 | $0.00                     | $0.00                   |
| 2026-05-11 | $0.00                     | $0.00                   |
| 2026-05-12 | $0.00                     | $0.00                   |
| 2026-05-13 | $0.00                     | $0.00                   |
| 2026-05-14 | $0.00                     | $0.00                   |
| 2026-05-15 | $0.00                     | $0.00                   |
| 2026-05-18 | $0.00                     | $0.00                   |
| 2026-05-19 | $0.00                     | $0.00                   |
| 2026-05-20 | $0.00                     | $0.00                   |
| 2026-05-21 | $0.00                     | $0.00                   |
| 2026-05-22 | $0.00                     | $0.00                   |
| 2026-05-26 | $0.00                     | $0.00                   |
| 2026-05-27 | $0.00                     | $0.00                   |
| 2026-05-28 | $0.00                     | $0.00                   |
| 2026-05-29 | $0.00                     | $0.00                   |

**Total Gross Subscriptions (Month):** $114041.13

**Total Gross Redemptions (Month):** $0.00

**7-Day Net Yield (Class)**
| Date       | 7-Day Net Yield   |
|:---|:---|
| 2026-05-01 | 3.4400%           |
| 2026-05-04 | 2.9600%           |
| 2026-05-05 | 2.7300%           |
| 2026-05-06 | 2.5900%           |
| 2026-05-07 | 2.5000%           |
| 2026-05-08 | 2.4100%           |
| 2026-05-11 | 2.4700%           |
| 2026-05-12 | 2.4800%           |
| 2026-05-13 | 2.4700%           |
| 2026-05-14 | 2.4000%           |
| 2026-05-15 | 2.3800%           |
| 2026-05-18 | 2.1300%           |
| 2026-05-19 | 2.0800%           |
| 2026-05-20 | 1.9500%           |
| 2026-05-21 | 1.8600%           |
| 2026-05-22 | 1.7700%           |
| 2026-05-26 | 1.8000%           |
| 2026-05-27 | 1.7300%           |
| 2026-05-28 | 1.7600%           |
| 2026-05-29 | 1.8000%           |

**Beneficial/Record Owner Categories**
| Category                      | Other Category   | Record Owner %   | Beneficial Owner %   |
|:---|:---|:---|:---|
| Registered investment company |  | 99.9700%         | 0.0000%              |

## Part C: Schedule of Portfolio Securities

### Security 1: Fidelity Revere Street Trust

- **C.1 - Title:** Fidelity Municipal Cash Central Fund
- **C.6 - Investment Category:** Investment Company
- **Identifiers:** C.3 - CUSIP: 31635A204, C.4 - ISIN: US31635A2042, C.3 - LEI: 549300BDV45LJNXBZC55, C.5 - Other ID: 31635A204
- **C.18 - Value (incl. sponsor support):** $44938165.32
- **C.18.a - Value (excl. sponsor support):** $44938165.32
- **C.19 - Percentage of Net Assets:** 99.8200%
- **C.17 - Yield as of Reporting Date:** 1.9100%
- **C.11 - Maturity Date (WAM):** 2026-06-05
- **C.12 - Maturity Date (WAL):** 2026-06-05
- **C.13 - Final Legal Maturity Date:** 2099-12-31
- **C.10 - Ratings:** N/A: N/A
- **Characteristics:** C.9 Eligible Security? Yes, C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.20 Is a Daily Liquid Asset? No, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

## N-MFP: Signatures

**Registrant:** Fidelity SAI Municipal Money Market Fund

**Date:** 2026-06-02

**By:** Laura M. Del Prato

**Name of Signing Officer:** Laura M. Del Prato

**Title of Signing Officer:** President and Treasurer