# EDGAR Filing Document

**Accession Number:** 0000917286
**File Stem:** 0001752724-25-173470
**Filing Date:** 2025-7
**Character Count:** 6915
**Document Hash:** 26e51a94f1ba0488fdbec7a095f2ef62
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001752724-25-173470.hdr.sgml**: 20250722

**ACCESSION NUMBER**: 0001752724-25-173470

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

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250430

**FILED AS OF DATE**: 20250722

**DATE AS OF CHANGE**: 20250722

**EFFECTIVENESS DATE**: 20250722

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** FIDELITY HEREFORD STREET TRUST
- **CENTRAL INDEX KEY:** 0000917286

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

**FILING VALUES:**
- **FORM TYPE:** 24F-2NT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-52577
- **FILM NUMBER:** 251139046

**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

## Series and Classes Contracts Data

### Fidelity Government Money Market Fund (Series ID: S000007051)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                    | Ticker Symbol | Class ID   |
| Fidelity Government Money Market Fund         | SPAXX         | C000019230 |
| Capital Reserves Class                        | FZAXX         | C000154303 |
| Daily Money Class                             | FZBXX         | C000154304 |
| Premium Class                                 | FZCXX         | C000154305 |
| Advisor M Class                               | FZGXX         | C000190683 |
| Class K6                                      | FNBXX         | C000198393 |
| Fidelity Government Money Market Fund-Class S | FZSXX         | C000232685 |

---

### Fidelity Money Market Fund (Series ID: S000007052)

---

|  |  |  |
|:---|:---|:---|
| Class Name                 | Ticker Symbol | Class ID   |
| Fidelity Money Market Fund | SPRXX         | C000019231 |
| Premium Class              | FZDXX         | C000154306 |

---

### Fidelity Treasury Only Money Market Fund (Series ID: S000007053)

---

|  |  |  |
|:---|:---|:---|
| Class Name                               | Ticker Symbol | Class ID   |
| Fidelity Treasury Only Money Market Fund | FDLXX         | C000019232 |
| Class OUS                                | FYIXX         | C000257340 |

---

### Fidelity Flex Government Money Market Fund (Series ID: S000056367)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                 | Ticker Symbol | Class ID   |
| Fidelity Flex Government Money Market Fund | FLGXX         | C000177594 |

---

### Fidelity Series Treasury Bill Index Fund (Series ID: S000062807)

---

|  |  |  |
|:---|:---|:---|
| Class Name                               | Ticker Symbol | Class ID   |
| Fidelity Series Treasury Bill Index Fund | FHQFX         | C000203454 |

---

### Fidelity Treasury Digital Fund (Series ID: S000089156)

---

|  |  |  |
|:---|:---|:---|
| Class Name      | Ticker Symbol | Class ID   |
| Liquidity Class | FYHXX         | C000255665 |
| OnChain         | FYOXX         | C000261149 |

---

## Series and Classes Contracts Data

### Fidelity Government Money Market Fund (Series ID: S000007051)

| Class ID   | Class Name                                    | Ticker Symbol   |
|:---|:---|:---|
| C000019230 | Fidelity Government Money Market Fund         | SPAXX           |
| C000154303 | Capital Reserves Class                        | FZAXX           |
| C000154304 | Daily Money Class                             | FZBXX           |
| C000154305 | Premium Class                                 | FZCXX           |
| C000190683 | Advisor M Class                               | FZGXX           |
| C000198393 | Class K6                                      | FNBXX           |
| C000232685 | Fidelity Government Money Market Fund-Class S | FZSXX           |

### Fidelity Money Market Fund (Series ID: S000007052)

| Class ID   | Class Name                 | Ticker Symbol   |
|:---|:---|:---|
| C000019231 | Fidelity Money Market Fund | SPRXX           |
| C000154306 | Premium Class              | FZDXX           |

### Fidelity Treasury Only Money Market Fund (Series ID: S000007053)

| Class ID   | Class Name                               | Ticker Symbol   |
|:---|:---|:---|
| C000019232 | Fidelity Treasury Only Money Market Fund | FDLXX           |
| C000257340 | Class OUS                                | FYIXX           |

### Fidelity Flex Government Money Market Fund (Series ID: S000056367)

| Class ID   | Class Name                                 | Ticker Symbol   |
|:---|:---|:---|
| C000177594 | Fidelity Flex Government Money Market Fund | FLGXX           |

### Fidelity Series Treasury Bill Index Fund (Series ID: S000062807)

| Class ID   | Class Name                               | Ticker Symbol   |
|:---|:---|:---|
| C000203454 | Fidelity Series Treasury Bill Index Fund | FHQFX           |

### Fidelity Treasury Digital Fund (Series ID: S000089156)

| Class ID   | Class Name      | Ticker Symbol   |
|:---|:---|:---|
| C000255665 | Liquidity Class | FYHXX           |
| C000261149 | OnChain         | FYOXX           |

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

### 24F-2NT: Filer Information

**Filer CIK:** 0000917286

**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 Hereford 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:** 811-07139

   **Securities Act File Number:** 033-52577

**4(a). Last day of fiscal year for which this Form is filed:** 04/30/2025

**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:** $1623326808636.00

- **(ii) Aggregate price of securities redeemed or repurchased during the fiscal year:** $1520761655530.00

- **(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)]:** $1520761655530.00

- **(v) Net sales:** $102565153106.00

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

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

- **(viii) Registration fee due:** $15702724.94

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

**Signatures**

**Name and Title:** President and Treasurer

**Date:** 04/30/2025

**Signature:** Laura M. Del Prato