# EDGAR Filing Document

**Accession Number:** 0000035315
**File Stem:** 0000035402-25-001585
**Filing Date:** 2025-11
**Character Count:** 21962
**Document Hash:** 25da971be6f4f4c8f2db1e0663e99880
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000035402-25-001585.hdr.sgml**: 20251121

**ACCESSION NUMBER**: 0000035402-25-001585

**CONFORMED SUBMISSION TYPE**: 24F-2NT

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250831

**FILED AS OF DATE**: 20251121

**DATE AS OF CHANGE**: 20251121

**EFFECTIVENESS DATE**: 20251121

**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:** 24F-2NT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-41839
- **FILM NUMBER:** 251507581

**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 Investment Grade Bond Fund (Series ID: S000007004)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                           | Ticker Symbol | Class ID   |
| Fidelity Investment Grade Bond Fund                  | FBNDX         | C000019120 |
| Fidelity Advisor Investment Grade Bond Fund: Class A | FGBAX         | C000019121 |
| Fidelity Advisor Investment Grade Bond Fund: Class C | FGBCX         | C000019123 |
| Fidelity Advisor Investment Grade Bond Fund: Class M | FGBTX         | C000019124 |
| Fidelity Advisor Investment Grade Bond Fund: Class I | FGBPX         | C000019125 |
| Fidelity Advisor Investment Grade Bond Fund: Class Z | FIKQX         | C000205019 |

---

### Fidelity Short-Term Bond Fund (Series ID: S000007007)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                     | Ticker Symbol | Class ID   |
| Fidelity Short-Term Bond Fund                  | FSHBX         | C000019128 |
| Fidelity Advisor Short-Term Bond Fund: Class A | FBNAX         | C000171437 |
| Fidelity Advisor Short-Term Bond Fund: Class M | FBNTX         | C000171438 |
| Fidelity Advisor Short-Term Bond Fund: Class C | FANCX         | C000171439 |
| Fidelity Advisor Short-Term Bond Fund: Class I | FBNIX         | C000171440 |
| Fidelity Advisor Short-Term Bond Fund: Class Z | FIKTX         | C000205020 |

---

### Fidelity Intermediate Bond Fund (Series ID: S000017674)

---

|  |  |  |
|:---|:---|:---|
| Class Name                      | Ticker Symbol | Class ID   |
| Fidelity Intermediate Bond Fund | FTHRX         | C000048836 |

---

### Fidelity U.S. Bond Index Fund (Series ID: S000017676)

---

|  |  |  |
|:---|:---|:---|
| Class Name                    | Ticker Symbol | Class ID   |
| Class F                       | FUBFX         | C000079295 |
| Fidelity U.S. Bond Index Fund | FXNAX         | C000100043 |

---

### Fidelity Series Investment Grade Bond Fund (Series ID: S000023604)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                 | Ticker Symbol | Class ID   |
| Fidelity Series Investment Grade Bond Fund | FSIGX         | C000069436 |

---

### Fidelity Corporate Bond Fund (Series ID: S000028761)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                    | Ticker Symbol | Class ID   |
| Fidelity Corporate Bond Fund                  | FCBFX         | C000088096 |
| Fidelity Advisor Corporate Bond Fund: Class A | FCBAX         | C000088097 |
| Fidelity Advisor Corporate Bond Fund: Class C | FCCCX         | C000088099 |
| Fidelity Advisor Corporate Bond Fund: Class M | FCBTX         | C000088100 |
| Fidelity Advisor Corporate Bond Fund: Class I | FCBIX         | C000088101 |
| Fidelity Advisor Corporate Bond Fund: Class Z | FIKOX         | C000205023 |

---

### Fidelity Conservative Income Bond Fund (Series ID: S000031520)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                              | Ticker Symbol | Class ID   |
| Fidelity Conservative Income Bond Fund                  | FCNVX         | C000098000 |
| Fidelity Advisor Conservative Income Bond Fund: Class Z | FCNYX         | C000243069 |
| Fidelity Advisor Conservative Income Bond Fund: Class A | FCNQX         | C000243070 |
| Fidelity Advisor Conservative Income Bond Fund: Class I | FCNWX         | C000243071 |

---

### Fidelity Series Short-Term Credit Fund (Series ID: S000048583)

---

|  |  |  |
|:---|:---|:---|
| Class Name                             | Ticker Symbol | Class ID   |
| Fidelity Series Short-Term Credit Fund | FYBTX         | C000153158 |

---

### Fidelity Series Government Money Market Fund (Series ID: S000053607)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                   | Ticker Symbol | Class ID   |
| Fidelity Series Government Money Market Fund | FGNXX         | C000168450 |

---

### Fidelity Flex U.S. Bond Index Fund (Series ID: S000056354)

---

|  |  |  |
|:---|:---|:---|
| Class Name                         | Ticker Symbol | Class ID   |
| Fidelity Flex U.S. Bond Index Fund | FIBUX         | C000177581 |

---

### Fidelity Short-Term Bond Index Fund (Series ID: S000059301)

---

|  |  |  |
|:---|:---|:---|
| Class Name                          | Ticker Symbol | Class ID   |
| Fidelity Short-Term Bond Index Fund | FNSOX         | C000194645 |

---

### Fidelity Sustainability Bond Index Fund (Series ID: S000061665)

---

|  |  |  |
|:---|:---|:---|
| Class Name                              | Ticker Symbol | Class ID   |
| Fidelity Sustainability Bond Index Fund | FNDSX         | C000199795 |

---

### Fidelity Flex Conservative Income Bond Fund (Series ID: S000062001)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                  | Ticker Symbol | Class ID   |
| Fidelity Flex Conservative Income Bond Fund | FJTDX         | C000200823 |

---

### Fidelity SAI Total Bond Fund (Series ID: S000062237)

---

|  |  |  |
|:---|:---|:---|
| Class Name                   | Ticker Symbol | Class ID   |
| Fidelity SAI Total Bond Fund | FSMTX         | C000201533 |

---

### Fidelity Series Corporate Bond Fund (Series ID: S000062809)

---

|  |  |  |
|:---|:---|:---|
| Class Name                          | Ticker Symbol | Class ID   |
| Fidelity Series Corporate Bond Fund | FHMFX         | C000203456 |

---

### Fidelity Series Bond Index Fund (Series ID: S000065215)

---

|  |  |  |
|:---|:---|:---|
| Class Name                      | Ticker Symbol | Class ID   |
| Fidelity Series Bond Index Fund | FIFZX         | C000211071 |

---

### Fidelity SAI Low Duration Bond Fund (Series ID: S000069440)

---

|  |  |  |
|:---|:---|:---|
| Class Name                          | Ticker Symbol | Class ID   |
| Fidelity SAI Low Duration Bond Fund | FZOLX         | C000221555 |

---

### Fidelity SAI Short-Term Bond Fund (Series ID: S000069441)

---

|  |  |  |
|:---|:---|:---|
| Class Name                        | Ticker Symbol | Class ID   |
| Fidelity SAI Short-Term Bond Fund | FZOMX         | C000221556 |

---

### Fidelity Tactical Bond Fund (Series ID: S000075287)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                   | Ticker Symbol | Class ID   |
| Fidelity Tactical Bond Fund                  | FBAGX         | C000234189 |
| Fidelity Advisor Tactical Bond Fund: Class Z | FBAPX         | C000234190 |
| Fidelity Advisor Tactical Bond Fund: Class A | FTKAX         | C000234191 |
| Fidelity Advisor Tactical Bond Fund: Class C | FTKCX         | C000234192 |
| Fidelity Advisor Tactical Bond Fund: Class M | FTYMX         | C000234193 |
| Fidelity Advisor Tactical Bond Fund: Class I | FBAHX         | C000234194 |

---

### Fidelity SAI Sustainable Core Plus Bond Fund (Series ID: S000075889)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                   | Ticker Symbol | Class ID   |
| Fidelity SAI Sustainable Core Plus Bond Fund | FIABX         | C000235214 |

---

### Fidelity SAI Sustainable Low Duration Bond Fund (Series ID: S000075890)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                      | Ticker Symbol | Class ID   |
| Fidelity SAI Sustainable Low Duration Bond Fund | FAPFX         | C000235215 |

---

### Fidelity Sustainable Core Plus Bond Fund (Series ID: S000075892)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                                | Ticker Symbol | Class ID   |
| Fidelity Sustainable Core Plus Bond Fund                  | FIAEX         | C000235217 |
| Fidelity Advisor Sustainable Core Plus Bond Fund: Class C | FIAJX         | C000235218 |
| Fidelity Advisor Sustainable Core Plus Bond Fund: Class A | FIAIX         | C000235219 |
| Fidelity Advisor Sustainable Core Plus Bond Fund: Class Z | FIAMX         | C000235220 |
| Fidelity Advisor Sustainable Core Plus Bond Fund: Class I | FIALX         | C000235221 |
| Fidelity Advisor Sustainable Core Plus Bond Fund: Class M | FIAKX         | C000235222 |

---

### Fidelity Sustainable Low Duration Bond Fund (Series ID: S000075894)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                                   | Ticker Symbol | Class ID   |
| Fidelity Advisor Sustainable Low Duration Bond Fund: Class A | FAMZX         | C000235229 |
| Fidelity Advisor Sustainable Low Duration Bond Fund: Class M | FAPBX         | C000235230 |
| Fidelity Advisor Sustainable Low Duration Bond Fund: Class C | FANDX         | C000235231 |
| Fidelity Advisor Sustainable Low Duration Bond Fund: Class I | FAPDX         | C000235232 |
| Fidelity Advisor Sustainable Low Duration Bond Fund: Class Z | FAPEX         | C000235233 |
| Fidelity Sustainable Low Duration Bond Fund                  | FAPGX         | C000235234 |

---

### Fidelity Series Sustainable Investment Grade Bond Fund (Series ID: S000080313)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                             | Ticker Symbol | Class ID   |
| Fidelity Series Sustainable Investment Grade Bond Fund | FIGDX         | C000242612 |

---

### Fidelity SAI Investment Grade Securitized Fund (Series ID: S000080417)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                     | Ticker Symbol | Class ID   |
| Fidelity SAI Investment Grade Securitized Fund | FSMOX         | C000242809 |

---

### Fidelity SAI Enhanced Core Bond Fund (Series ID: S000090603)

---

|  |  |  |
|:---|:---|:---|
| Class Name                           | Ticker Symbol | Class ID   |
| Fidelity SAI Enhanced Core Bond Fund | FECBX         | C000257875 |

---

## Series and Classes Contracts Data

### Fidelity Investment Grade Bond Fund (Series ID: S000007004)

| Class ID   | Class Name                                           | Ticker Symbol   |
|:---|:---|:---|
| C000019120 | Fidelity Investment Grade Bond Fund                  | FBNDX           |
| C000019121 | Fidelity Advisor Investment Grade Bond Fund: Class A | FGBAX           |
| C000019123 | Fidelity Advisor Investment Grade Bond Fund: Class C | FGBCX           |
| C000019124 | Fidelity Advisor Investment Grade Bond Fund: Class M | FGBTX           |
| C000019125 | Fidelity Advisor Investment Grade Bond Fund: Class I | FGBPX           |
| C000205019 | Fidelity Advisor Investment Grade Bond Fund: Class Z | FIKQX           |

### Fidelity Short-Term Bond Fund (Series ID: S000007007)

| Class ID   | Class Name                                     | Ticker Symbol   |
|:---|:---|:---|
| C000019128 | Fidelity Short-Term Bond Fund                  | FSHBX           |
| C000171437 | Fidelity Advisor Short-Term Bond Fund: Class A | FBNAX           |
| C000171438 | Fidelity Advisor Short-Term Bond Fund: Class M | FBNTX           |
| C000171439 | Fidelity Advisor Short-Term Bond Fund: Class C | FANCX           |
| C000171440 | Fidelity Advisor Short-Term Bond Fund: Class I | FBNIX           |
| C000205020 | Fidelity Advisor Short-Term Bond Fund: Class Z | FIKTX           |

### Fidelity Intermediate Bond Fund (Series ID: S000017674)

| Class ID   | Class Name                      | Ticker Symbol   |
|:---|:---|:---|
| C000048836 | Fidelity Intermediate Bond Fund | FTHRX           |

### Fidelity U.S. Bond Index Fund (Series ID: S000017676)

| Class ID   | Class Name                    | Ticker Symbol   |
|:---|:---|:---|
| C000079295 | Class F                       | FUBFX           |
| C000100043 | Fidelity U.S. Bond Index Fund | FXNAX           |

### Fidelity Series Investment Grade Bond Fund (Series ID: S000023604)

| Class ID   | Class Name                                 | Ticker Symbol   |
|:---|:---|:---|
| C000069436 | Fidelity Series Investment Grade Bond Fund | FSIGX           |

### Fidelity Corporate Bond Fund (Series ID: S000028761)

| Class ID   | Class Name                                    | Ticker Symbol   |
|:---|:---|:---|
| C000088096 | Fidelity Corporate Bond Fund                  | FCBFX           |
| C000088097 | Fidelity Advisor Corporate Bond Fund: Class A | FCBAX           |
| C000088099 | Fidelity Advisor Corporate Bond Fund: Class C | FCCCX           |
| C000088100 | Fidelity Advisor Corporate Bond Fund: Class M | FCBTX           |
| C000088101 | Fidelity Advisor Corporate Bond Fund: Class I | FCBIX           |
| C000205023 | Fidelity Advisor Corporate Bond Fund: Class Z | FIKOX           |

### Fidelity Conservative Income Bond Fund (Series ID: S000031520)

| Class ID   | Class Name                                              | Ticker Symbol   |
|:---|:---|:---|
| C000098000 | Fidelity Conservative Income Bond Fund                  | FCNVX           |
| C000243069 | Fidelity Advisor Conservative Income Bond Fund: Class Z | FCNYX           |
| C000243070 | Fidelity Advisor Conservative Income Bond Fund: Class A | FCNQX           |
| C000243071 | Fidelity Advisor Conservative Income Bond Fund: Class I | FCNWX           |

### Fidelity Series Short-Term Credit Fund (Series ID: S000048583)

| Class ID   | Class Name                             | Ticker Symbol   |
|:---|:---|:---|
| C000153158 | Fidelity Series Short-Term Credit Fund | FYBTX           |

### Fidelity Series Government Money Market Fund (Series ID: S000053607)

| Class ID   | Class Name                                   | Ticker Symbol   |
|:---|:---|:---|
| C000168450 | Fidelity Series Government Money Market Fund | FGNXX           |

### Fidelity Flex U.S. Bond Index Fund (Series ID: S000056354)

| Class ID   | Class Name                         | Ticker Symbol   |
|:---|:---|:---|
| C000177581 | Fidelity Flex U.S. Bond Index Fund | FIBUX           |

### Fidelity Short-Term Bond Index Fund (Series ID: S000059301)

| Class ID   | Class Name                          | Ticker Symbol   |
|:---|:---|:---|
| C000194645 | Fidelity Short-Term Bond Index Fund | FNSOX           |

### Fidelity Sustainability Bond Index Fund (Series ID: S000061665)

| Class ID   | Class Name                              | Ticker Symbol   |
|:---|:---|:---|
| C000199795 | Fidelity Sustainability Bond Index Fund | FNDSX           |

### Fidelity Flex Conservative Income Bond Fund (Series ID: S000062001)

| Class ID   | Class Name                                  | Ticker Symbol   |
|:---|:---|:---|
| C000200823 | Fidelity Flex Conservative Income Bond Fund | FJTDX           |

### Fidelity SAI Total Bond Fund (Series ID: S000062237)

| Class ID   | Class Name                   | Ticker Symbol   |
|:---|:---|:---|
| C000201533 | Fidelity SAI Total Bond Fund | FSMTX           |

### Fidelity Series Corporate Bond Fund (Series ID: S000062809)

| Class ID   | Class Name                          | Ticker Symbol   |
|:---|:---|:---|
| C000203456 | Fidelity Series Corporate Bond Fund | FHMFX           |

### Fidelity Series Bond Index Fund (Series ID: S000065215)

| Class ID   | Class Name                      | Ticker Symbol   |
|:---|:---|:---|
| C000211071 | Fidelity Series Bond Index Fund | FIFZX           |

### Fidelity SAI Low Duration Bond Fund (Series ID: S000069440)

| Class ID   | Class Name                          | Ticker Symbol   |
|:---|:---|:---|
| C000221555 | Fidelity SAI Low Duration Bond Fund | FZOLX           |

### Fidelity SAI Short-Term Bond Fund (Series ID: S000069441)

| Class ID   | Class Name                        | Ticker Symbol   |
|:---|:---|:---|
| C000221556 | Fidelity SAI Short-Term Bond Fund | FZOMX           |

### Fidelity Tactical Bond Fund (Series ID: S000075287)

| Class ID   | Class Name                                   | Ticker Symbol   |
|:---|:---|:---|
| C000234189 | Fidelity Tactical Bond Fund                  | FBAGX           |
| C000234190 | Fidelity Advisor Tactical Bond Fund: Class Z | FBAPX           |
| C000234191 | Fidelity Advisor Tactical Bond Fund: Class A | FTKAX           |
| C000234192 | Fidelity Advisor Tactical Bond Fund: Class C | FTKCX           |
| C000234193 | Fidelity Advisor Tactical Bond Fund: Class M | FTYMX           |
| C000234194 | Fidelity Advisor Tactical Bond Fund: Class I | FBAHX           |

### Fidelity SAI Sustainable Core Plus Bond Fund (Series ID: S000075889)

| Class ID   | Class Name                                   | Ticker Symbol   |
|:---|:---|:---|
| C000235214 | Fidelity SAI Sustainable Core Plus Bond Fund | FIABX           |

### Fidelity SAI Sustainable Low Duration Bond Fund (Series ID: S000075890)

| Class ID   | Class Name                                      | Ticker Symbol   |
|:---|:---|:---|
| C000235215 | Fidelity SAI Sustainable Low Duration Bond Fund | FAPFX           |

### Fidelity Sustainable Core Plus Bond Fund (Series ID: S000075892)

| Class ID   | Class Name                                                | Ticker Symbol   |
|:---|:---|:---|
| C000235217 | Fidelity Sustainable Core Plus Bond Fund                  | FIAEX           |
| C000235218 | Fidelity Advisor Sustainable Core Plus Bond Fund: Class C | FIAJX           |
| C000235219 | Fidelity Advisor Sustainable Core Plus Bond Fund: Class A | FIAIX           |
| C000235220 | Fidelity Advisor Sustainable Core Plus Bond Fund: Class Z | FIAMX           |
| C000235221 | Fidelity Advisor Sustainable Core Plus Bond Fund: Class I | FIALX           |
| C000235222 | Fidelity Advisor Sustainable Core Plus Bond Fund: Class M | FIAKX           |

### Fidelity Sustainable Low Duration Bond Fund (Series ID: S000075894)

| Class ID   | Class Name                                                   | Ticker Symbol   |
|:---|:---|:---|
| C000235229 | Fidelity Advisor Sustainable Low Duration Bond Fund: Class A | FAMZX           |
| C000235230 | Fidelity Advisor Sustainable Low Duration Bond Fund: Class M | FAPBX           |
| C000235231 | Fidelity Advisor Sustainable Low Duration Bond Fund: Class C | FANDX           |
| C000235232 | Fidelity Advisor Sustainable Low Duration Bond Fund: Class I | FAPDX           |
| C000235233 | Fidelity Advisor Sustainable Low Duration Bond Fund: Class Z | FAPEX           |
| C000235234 | Fidelity Sustainable Low Duration Bond Fund                  | FAPGX           |

### Fidelity Series Sustainable Investment Grade Bond Fund (Series ID: S000080313)

| Class ID   | Class Name                                             | Ticker Symbol   |
|:---|:---|:---|
| C000242612 | Fidelity Series Sustainable Investment Grade Bond Fund | FIGDX           |

### Fidelity SAI Investment Grade Securitized Fund (Series ID: S000080417)

| Class ID   | Class Name                                     | Ticker Symbol   |
|:---|:---|:---|
| C000242809 | Fidelity SAI Investment Grade Securitized Fund | FSMOX           |

### Fidelity SAI Enhanced Core Bond Fund (Series ID: S000090603)

| Class ID   | Class Name                           | Ticker Symbol   |
|:---|:---|:---|
| C000257875 | Fidelity SAI Enhanced Core Bond Fund | FECBX           |

## FORM 24F-2NT: Annual Notice of Securities Sold Pursuant to Rule 24f-2

### 24F-2NT: Filer Information

**Filer CIK:** 0000035315

**Is this a LIVE or TEST Filing?:** LIVE

**Filer Investment Company Type:** N-1A

### 24F-2NT: Annual Filing Information

**1. Name and address of issuer:**

- **Name of Issuer:** Fidelity Salem Street Trust

- **Address:** 245 Summer Street, Boston, MA 02210

**2. The Name and EDGAR Identifier of each series or class of securities for which this Form is filed:**

- [ ] Check box if the Form is being filed for all series and classes of the issuer.

**3. Investment Company Act File Number:** 811-02105

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

**4(a). Last day of fiscal year for which this Form is filed:** 08/31/2025

**4(b). Check box if this Form is being filed late:** [ ]

**4(c). Check box if this is the last time the issuer will be filing this Form:** [ ]

**5. Calculation of registration fee:**

- **(i) Aggregate sale price of securities sold during the fiscal year:** $75011515311.00

- **(ii) Aggregate price of securities redeemed or repurchased during the fiscal year:** $55121547980.00

- **(iii) Aggregate price of securities redeemed or repurchased during any prior fiscal year:** $0.00

- **(iv) Total available redemption credits [add Items 5(ii) and 5(iii)]:** $55121547980.00

- **(v) Net sales:** $19889967331.00

- **(vi) Redemption credits available for use in future years:** $0.00

- **(vii) Multiplier for determining registration fee:** 0.0001381

- **(viii) Registration fee due:** $2746804.49

**Explanatory Notes (if any):**
0

**Signatures**

**Name and Title:** President and Treasurer

**Date:** 08/31/2025

**Signature:** Laura M. Del Prato