# EDGAR Filing Document

**Accession Number:** 0000225322
**File Stem:** 0001752724-25-196969
**Filing Date:** 2025-8
**Character Count:** 8122
**Document Hash:** e969e03dabda3ae8e310d120bb69cac9
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001752724-25-196969.hdr.sgml**: 20250821

**ACCESSION NUMBER**: 0001752724-25-196969

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

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250531

**FILED AS OF DATE**: 20250821

**DATE AS OF CHANGE**: 20250821

**EFFECTIVENESS DATE**: 20250821

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** FIDELITY SUMMER STREET TRUST
- **CENTRAL INDEX KEY:** 0000225322

**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:** 002-58542
- **FILM NUMBER:** 251239972

**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 HIGH INCOME FUND
- **DATE OF NAME CHANGE:** 19890309

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FIDELITY AGGRESSIVE INCOME FUND
- **DATE OF NAME CHANGE:** 19810205

## Series and Classes Contracts Data

### Fidelity Agricultural Productivity Fund (Series ID: S000067930)

---

|  |  |  |
|:---|:---|:---|
| Class Name                              | Ticker Symbol | Class ID   |
| Fidelity Agricultural Productivity Fund | FARMX         | C000217772 |

---

### Fidelity Water Sustainability Fund (Series ID: S000067937)

---

|  |  |  |
|:---|:---|:---|
| Class Name                         | Ticker Symbol | Class ID   |
| Fidelity Water Sustainability Fund | FLOWX         | C000217779 |

---

### Fidelity Climate Action Fund (Series ID: S000072128)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                    | Ticker Symbol | Class ID   |
| Fidelity Advisor Climate Action Fund: Class A | FCAJX         | C000227889 |
| Fidelity Advisor Climate Action Fund: Class M | FCAOX         | C000227890 |
| Fidelity Advisor Climate Action Fund: Class C | FCALX         | C000227891 |
| Fidelity Advisor Climate Action Fund: Class I | FCAUX         | C000227892 |
| Fidelity Advisor Climate Action Fund: Class Z | FCLZX         | C000227893 |
| Fidelity Climate Action Fund                  | FCAEX         | C000227894 |

---

### Fidelity Sustainable U.S. Equity Fund (Series ID: S000072129)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                             | Ticker Symbol | Class ID   |
| Fidelity Advisor Sustainable U.S. Equity Fund: Class A | FSEKX         | C000227895 |
| Fidelity Advisor Sustainable U.S. Equity Fund: Class M | FSEPX         | C000227896 |
| Fidelity Advisor Sustainable U.S. Equity Fund: Class C | FSEOX         | C000227897 |
| Fidelity Advisor Sustainable U.S. Equity Fund: Class I | FSEQX         | C000227898 |
| Fidelity Advisor Sustainable U.S. Equity Fund: Class Z | FSEWX         | C000227899 |
| Fidelity Sustainable U.S. Equity Fund                  | FSEBX         | C000227900 |

---

### Fidelity SAI Sustainable Future Fund (Series ID: S000075897)

---

|  |  |  |
|:---|:---|:---|
| Class Name                           | Ticker Symbol | Class ID   |
| Fidelity SAI Sustainable Future Fund | FIDHX         | C000235238 |

---

### Fidelity SAI Sustainable Sector Fund (Series ID: S000075898)

---

|  |  |  |
|:---|:---|:---|
| Class Name                           | Ticker Symbol | Class ID   |
| Fidelity SAI Sustainable Sector Fund | FIDJX         | C000235239 |

---

### Fidelity SAI Sustainable U.S. Equity Fund (Series ID: S000075899)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                | Ticker Symbol | Class ID   |
| Fidelity SAI Sustainable U.S. Equity Fund | FIDEX         | C000235240 |

---

## Series and Classes Contracts Data

### Fidelity Agricultural Productivity Fund (Series ID: S000067930)

| Class ID   | Class Name                              | Ticker Symbol   |
|:---|:---|:---|
| C000217772 | Fidelity Agricultural Productivity Fund | FARMX           |

### Fidelity Water Sustainability Fund (Series ID: S000067937)

| Class ID   | Class Name                         | Ticker Symbol   |
|:---|:---|:---|
| C000217779 | Fidelity Water Sustainability Fund | FLOWX           |

### Fidelity Climate Action Fund (Series ID: S000072128)

| Class ID   | Class Name                                    | Ticker Symbol   |
|:---|:---|:---|
| C000227889 | Fidelity Advisor Climate Action Fund: Class A | FCAJX           |
| C000227890 | Fidelity Advisor Climate Action Fund: Class M | FCAOX           |
| C000227891 | Fidelity Advisor Climate Action Fund: Class C | FCALX           |
| C000227892 | Fidelity Advisor Climate Action Fund: Class I | FCAUX           |
| C000227893 | Fidelity Advisor Climate Action Fund: Class Z | FCLZX           |
| C000227894 | Fidelity Climate Action Fund                  | FCAEX           |

### Fidelity Sustainable U.S. Equity Fund (Series ID: S000072129)

| Class ID   | Class Name                                             | Ticker Symbol   |
|:---|:---|:---|
| C000227895 | Fidelity Advisor Sustainable U.S. Equity Fund: Class A | FSEKX           |
| C000227896 | Fidelity Advisor Sustainable U.S. Equity Fund: Class M | FSEPX           |
| C000227897 | Fidelity Advisor Sustainable U.S. Equity Fund: Class C | FSEOX           |
| C000227898 | Fidelity Advisor Sustainable U.S. Equity Fund: Class I | FSEQX           |
| C000227899 | Fidelity Advisor Sustainable U.S. Equity Fund: Class Z | FSEWX           |
| C000227900 | Fidelity Sustainable U.S. Equity Fund                  | FSEBX           |

### Fidelity SAI Sustainable Future Fund (Series ID: S000075897)

| Class ID   | Class Name                           | Ticker Symbol   |
|:---|:---|:---|
| C000235238 | Fidelity SAI Sustainable Future Fund | FIDHX           |

### Fidelity SAI Sustainable Sector Fund (Series ID: S000075898)

| Class ID   | Class Name                           | Ticker Symbol   |
|:---|:---|:---|
| C000235239 | Fidelity SAI Sustainable Sector Fund | FIDJX           |

### Fidelity SAI Sustainable U.S. Equity Fund (Series ID: S000075899)

| Class ID   | Class Name                                | Ticker Symbol   |
|:---|:---|:---|
| C000235240 | Fidelity SAI Sustainable U.S. Equity Fund | FIDEX           |

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

### 24F-2NT: Filer Information

**Filer CIK:** 0000225322

**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 Summer 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:** 811-02737

   **Securities Act File Number:** 002-58542

**4(a). Last day of fiscal year for which this Form is filed:** 05/31/2025

**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:** $742276483.00

- **(ii) Aggregate price of securities redeemed or repurchased during the fiscal year:** $386640273.00

- **(iii) Aggregate price of securities redeemed or repurchased during any prior fiscal year:** $356165286.00

- **(iv) Total available redemption credits [add Items 5(ii) and 5(iii)]:** $742805559.00

- **(v) Net sales:** $0.00

- **(vi) Redemption credits available for use in future years:** $-529076.00

- **(vii) Multiplier for determining registration fee:** 0.0001531

- **(viii) Registration fee due:** $0.00

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

**Signatures**

**Name and Title:** President and Treasurer

**Date:** 05/31/2025

**Signature:** Stacie M. Smith