# EDGAR Filing Document

**Accession Number:** 0000225322
**File Stem:** 0000035402-25-002414
**Filing Date:** 2025-12
**Character Count:** 3498
**Document Hash:** a3e7c42a9f9925a0f1734d23292f5f0b
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000035402-25-002414.hdr.sgml**: 20251219

**ACCESSION NUMBER**: 0000035402-25-002414

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

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250930

**FILED AS OF DATE**: 20251219

**DATE AS OF CHANGE**: 20251219

**EFFECTIVENESS DATE**: 20251219

**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:** 251585822

**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 Series Floating Rate High Income Fund (Series ID: S000031533)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                     | Ticker Symbol | Class ID   |
| Fidelity Series Floating Rate High Income Fund | FFHCX         | C000098083 |

---

## Series and Classes Contracts Data

### Fidelity Series Floating Rate High Income Fund (Series ID: S000031533)

| Class ID   | Class Name                                     | Ticker Symbol   |
|:---|:---|:---|
| C000098083 | Fidelity Series Floating Rate High Income Fund | FFHCX           |

## 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:** 09/30/2025

**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:** $52939181.00

- **(ii) Aggregate price of securities redeemed or repurchased during the fiscal year:** $37116761.00

- **(iii) Aggregate price of securities redeemed or repurchased during any prior fiscal year:** $1157577392.00

- **(iv) Total available redemption credits [add Items 5(ii) and 5(iii)]:** $1194694153.00

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

- **(vi) Redemption credits available for use in future years:** $-1141754972.00

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

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

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

**Signatures**

**Name and Title:** President and Treasurer

**Date:** 09/30/2025

**Signature:** Stacie M. Smith