# EDGAR Filing Document

**Accession Number:** 0001562565
**File Stem:** 0000035402-26-002220
**Filing Date:** 2026-4
**Character Count:** 3239
**Document Hash:** 428b79f8f6960c9d2c891d55ca20c342
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000035402-26-002220.hdr.sgml**: 20260421

**ACCESSION NUMBER**: 0000035402-26-002220

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

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260131

**FILED AS OF DATE**: 20260421

**DATE AS OF CHANGE**: 20260421

**EFFECTIVENESS DATE**: 20260421

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Fidelity Merrimack Street Trust
- **CENTRAL INDEX KEY:** 0001562565

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0831

**FILING VALUES:**
- **FORM TYPE:** 24F-2NT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-186372
- **FILM NUMBER:** 26879734

**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 Municipal Bond Opportunities ETF (Series ID: S000089370)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                | Ticker Symbol | Class ID   |
| Fidelity Municipal Bond Opportunities ETF | FMUB          | C000255892 |

---

## Series and Classes Contracts Data

### Fidelity Municipal Bond Opportunities ETF (Series ID: S000089370)

| Class ID   | Class Name                                | Ticker Symbol   |
|:---|:---|:---|
| C000255892 | Fidelity Municipal Bond Opportunities ETF | FMUB            |

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

### 24F-2NT: Filer Information

**Filer CIK:** 0001562565

**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 Merrimack 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:** 811-22796

   **Securities Act File Number:** 333-186372

**4(a). Last day of fiscal year for which this Form is filed:** 01/31/2026

**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:** $111677773.00

- **(ii) Aggregate price of securities redeemed or repurchased during the fiscal year:** $28663946.00

- **(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)]:** $28663946.00

- **(v) Net sales:** $83013827.00

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

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

- **(viii) Registration fee due:** $11464.21

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

**Signatures**

**Name and Title:** President and Treasurer

**Date:** 01/31/2026

**Signature:** Laura M. Del Prato