FSLD / Fidelity Merrimack Street Trust - Fidelity Sustainable Low Duration Bond ETF - Depositi SEC, Relazione annuale, dichiarazione di delega

Dechert LLP

Dechert LLP Three Bryant Park 1095 Avenue of the Americas New York, NY 10036-6797 +1 212 698 3500 Main +1 212 698 3599 Fax www.

As filed with the Securities and Exchange Commission on April 4, 2025 Registration No. 333-284119 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-14 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

As filed with the Securities and Exchange Commission on April 4, 2025 Registration No.

POWER OF ATTORNEY

Exhibit 16a POWER OF ATTORNEY We, the undersigned Trustees of the Fidelity Merrimack Street Trust (the Trust) hereby constitute and appoint Thomas C.

POWER OF ATTORNEY

Exhibit 16b POWER OF ATTORNEY I, the undersigned Trustee of the Fidelity Merrimack Street Trust (the Trust) hereby constitute and appoint Stephanie J.

POWER OF ATTORNEY

POWER OF ATTORNEY We, the undersigned Trustees of the Fidelity Merrimack Street Trust (the Trust) hereby constitute and appoint Thomas C.

As filed with the Securities and Exchange Commission on April 4, 2025 Registration No. 333-283250 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-14 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

As filed with the Securities and Exchange Commission on April 4, 2025 Registration No.

Three Bryant Park

DechertLLP Three Bryant Park 1095 Avenue of the Americas New York, NY 10036-6797 +1 212 698 3500 Main +1 212 698 3559 Fax www.

POWER OF ATTORNEY

POWER OF ATTORNEY I, the undersigned Trustee of the Fidelity Merrimack Street Trust (the Trust) hereby constitute and appoint Stephanie J.

COMMENTS RECEIVED ON 01/29/2025 FROM DANIEL GREENSPAN FIDELITY MERRIMACK STREET TRUST (File Nos. 333-186372 and 811-22796) Fidelity Municipal Bond Index Fund Fidelity Systematic Municipal Bond Index ETF N-14 FILED ON 01/03/2025 N-14 Information State

Converted by EDGARwiz COMMENTS RECEIVED ON 01/29/2025 FROM DANIEL GREENSPAN FIDELITY MERRIMACK STREET TRUST (File Nos.

As filed with the Securities and Exchange Commission on January 3, 2025

As filed with the Securities and Exchange Commission on January 3, 2025 Registration No.

Consent of Independent Registered Public Accounting Firm

Exhibit 14 Consent of Independent Registered Public Accounting Firm We hereby consent to the incorporation by reference into the Registration Statement on Form N-14 of Fidelity Merrimack Street Trust of our report dated August 13, 2024, relating to the financial statements and financial highlights, which appears in Fidelity Municipal Bond Index Fund’s Annual Report on Form N-CSR for the year ended June 30, 2024.

Dechert LLP

Exhibit 11 Dechert LLP One International Place, 40th Floor 100 Oliver Street Boston, MA 02110-2605 +1 617 728 7100 Main +1 617 426 6567 Fax www.

POWER OF ATTORNEY

Exhibit 16(a) POWER OF ATTORNEY We, the undersigned Trustees of the Fidelity Merrimack Street Trust (the Trust) hereby constitute and appoint Thomas C.

POWER OF ATTORNEY

Exhibit 16(b) POWER OF ATTORNEY I, the undersigned Trustee of the Fidelity Merrimack Street Trust (the Trust) hereby constitute and appoint Stephanie J.

FIDELITY MERRIMACK STREET TRUST (Name of Registrant as Specified In Its Charter)

SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy Statement ☒ Definitive Additional Materials ☐ Soliciting Material under Rule 14a-12 FIDELITY MERRIMACK STREET TRUST (Name of Registrant as Specified In Its Charter) Payment of Filing Fee (Check the appropriate box): ☒ No fee required.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 Fidelity Merrimack Street Trust (Exact name of

OMB APPROVAL OMB Number: 3235-0056 Expires: July 31, 2025 Estimated average burden hours per response 3.

COMMENTS RECEIVED ON 12/10/2024 FROM KIM McMANUS FIDELITY MERRIMACK STREET TRUST (File Nos. 333-186372 and 811-22796) Fidelity Municipal Core Plus Bond Fund Fidelity Municipal Bond Opportunities ETF N-14 FILED ON 11/15/2024 N-14 Proxy Statement and P

Converted by EDGARwiz COMMENTS RECEIVED ON 12/10/2024 FROM KIM McMANUS FIDELITY MERRIMACK STREET TRUST (File Nos.

COMMENTS RECEIVED ON 11/22/2024 FROM DANIEL GREENSPAN FIDELITY MERRIMACK STREET TRUST (File Nos. 333-186372 and 811-22796) Fidelity Municipal Bond Opportunities ETF, Fidelity Systematic Municipal Bond Index ETF POST-EFFECTIVE AMENDMENT NO. 29

COMMENTS RECEIVED ON 11/22/2024 FROM DANIEL GREENSPAN FIDELITY MERRIMACK STREET TRUST (File Nos.

COMMENTS RECEIVED ON 12/03/2024 FROM KIM McMANUS FIDELITY MERRIMACK STREET TRUST (File Nos. 333-186372 and 811-22796) Fidelity Corporate Bond ETF Fidelity Investment Grade Bond ETF Fidelity Investment Grade Securitized ETF Fidelity Limited Term Bond

COMMENTS RECEIVED ON 12/03/2024 FROM KIM McMANUS FIDELITY MERRIMACK STREET TRUST (File Nos.

COMMENTS RECEIVED ON 11/22/2024 FROM DANIEL GREENSPAN FIDELITY MERRIMACK STREET TRUST (File Nos. 333-186372 and 811-22796) Fidelity Municipal Bond Opportunities ETF, Fidelity Systematic Municipal Bond Index ETF POST-EFFECTIVE AMENDMENT NO. 29

COMMENTS RECEIVED ON 11/22/2024 FROM DANIEL GREENSPAN FIDELITY MERRIMACK STREET TRUST (File Nos.

POWER OF ATTORNEY

Exhibit 16b POWER OF ATTORNEY I, the undersigned Trustee of the Fidelity Merrimack Street Trust (the Trust) hereby constitute and appoint Stephanie J.

POWER OF ATTORNEY

Exhibit 16a POWER OF ATTORNEY We, the undersigned Trustees of the Fidelity Merrimack Street Trust (the Trust) hereby constitute and appoint Thomas C.

November 13, 2024

Exhibit 11 Dechert LLP One International Place, 40th Floor 100 Oliver Street Boston, MA 02110-2605 +1 617 728 7100 Main +1 617 426 6567 Fax www.

Consent of Independent Registered Public Accounting Firm

Exhibit 14 Consent of Independent Registered Public Accounting Firm We hereby consent to the incorporation by reference into the Registration Statement on Form N-14 of Fidelity Merrimack Street Trust of our report dated March 12, 2024, relating to the financial statements and financial highlights, which appears in Fidelity Municipal Core Plus Bond Fund’s Annual Report on Form N-CSR for the period February 16, 2023 (commencement of operations) through January 31, 2024.

As filed with the Securities and Exchange Commission on November 15, 2024

As filed with the Securities and Exchange Commission on November 15, 2024 Registration No.

Q&A: FIDELITY® MUNICIPAL BOND INDEX FUND AND FIDELITY® MUNICIPAL CORE PLUS BOND FUND CONVERSIONS TO EXCHANGE TRADED FUNDS (ETFs)

Filed by: Fidelity Merrimack Street Trust Pursuant to Rule 425 under the Securities Acts of 1933 and deemed filed under Rule 14a-12(b) under the Securities Exchange Act of 1934.

Important Notice About Your Fund Account Questions and Answers

Filed by: Fidelity Merrimack Street Trust Pursuant to Rule 425 under the Securities Acts of 1933 and deemed filed under Rule 14a-12(b) under the Securities Exchange Act of 1934.

Important Notice About Your Fund Account Questions and Answers

Filed by: Fidelity Merrimack Street Trust Pursuant to Rule 425 under the Securities Acts of 1933 and deemed filed under Rule 14a-12(b) under the Securities Exchange Act of 1934.

Q&A: FIDELITY® MUNICIPAL BOND INDEX FUND AND FIDELITY® MUNICIPAL CORE PLUS BOND FUND CONVERSIONS TO EXCHANGE TRADED FUNDS (ETFs)

Filed by: Fidelity Merrimack Street Trust Pursuant to Rule 425 under the Securities Acts of 1933 and deemed filed under Rule 14a-12(b) under the Securities Exchange Act of 1934.

Important Notice About Your Fund Account Questions and Answers

Filed by: Fidelity Merrimack Street Trust Pursuant to Rule 425 under the Securities Acts of 1933 and deemed filed under Rule 14a-12(b) under the Securities Exchange Act of 1934.

OMB APPROVAL

OMB APPROVAL OMB Number: 3235-0056 Expires: July 31, 2025 Estimated average burden hours per response 3.

COMMENTS RECEIVED ON 01/11/2024 FROM DANIEL GREENSPAN FIDELITY MERRIMACK STREET TRUST (File Nos. 333-186372 and 811-22796) Fidelity Low Duration Bond ETF POST-EFFECTIVE AMENDMENT NO. 26

COMMENTS RECEIVED ON 01/11/2024 FROM DANIEL GREENSPAN FIDELITY MERRIMACK STREET TRUST (File Nos.

SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Proxy Statement ☐ Definitive Additional Materials ☐ Soliciting Material

COMMENTS RECEIVED ON 01/31/2023 FROM KEN ELLINGTON FIDELITY CHARLES STREET TRUST (File Nos. 002-73133 and 811-03221) FIDELITY INCOME FUND (File Nos. 002-92661 and 811-04085) FIDELITY INVESTMENT TRUST (File Nos. 002-90649 and 811-04008) FIDELITY MERRI

COMMENTS RECEIVED ON 01/31/2023 FROM KEN ELLINGTON FIDELITY CHARLES STREET TRUST (File Nos.

Quarterly Holdings Report Fidelity® Limited Term Bond ETF November 30, 2022

NPORT-EX 2 QTLY272120221130.htm Quarterly Holdings Report for Fidelity® Limited Term Bond ETF November 30, 2022 T13-NPRT1-0123 1.9862236.108 Nonconvertible Bonds - 53.1% Principal Amount (a) Value ($) COMMUNICATION SERVICES - 2.9% Diversified Telecommunication Services - 1.4% AT&T, Inc.: 0.9% 3/25/24 960,000 911,280 1.65% 2/1/28 762,000 654,150 NTT Finance Corp.: 0.583% 3/1/24 (b) 268,000 253,676

Quarterly Holdings Report Fidelity® Total Bond ETF November 30, 2022

NPORT-EX 2 QTLY272220221130.htm Quarterly Holdings Report for Fidelity® Total Bond ETF November 30, 2022 T14-NPRT1-0123 1.9862234.108 Corporate Bonds - 35.9% Principal Amount (a) Value ($) Convertible Bonds - 0.1% COMMUNICATION SERVICES - 0.1% Media - 0.1% DISH Network Corp.: 2.375% 3/15/24 400,000 356,989 3.375% 8/15/26 1,428,000 924,630 1,281,619 ENERGY - 0.0% Oil, Gas & Consumable Fuels - 0.0%

Quarterly Holdings Report Fidelity® Sustainable Low Duration Bond ETF November 30, 2022

NPORT-EX 2 QTLY656420221130.htm Quarterly Holdings Report for Fidelity® Sustainable Low Duration Bond ETF November 30, 2022 LDB-NPRT1-0123 1.9904953.100 Nonconvertible Bonds - 76.6% Principal Amount (a) Value ($) COMMUNICATION SERVICES - 4.1% Diversified Telecommunication Services - 2.6% AT&T, Inc.: U.S. Secured Overnight Fin. Rate (SOFR) Averages Index + 0.640% 3.9758% 3/25/24 (b)(c) 25,000 24,81

Quarterly Holdings Report Fidelity® Corporate Bond ETF November 30, 2022

Quarterly Holdings Report for Fidelity® Corporate Bond ETF November 30, 2022 T12-NPRT1-0123 1.

Quarterly Holdings Report Fidelity® Sustainable Core Plus Bond ETF November 30, 2022

Quarterly Holdings Report for Fidelity® Sustainable Core Plus Bond ETF November 30, 2022 CPB-NPRT1-0123 1.

Quarterly Holdings Report Fidelity® Investment Grade Bond ETF November 30, 2022

Quarterly Holdings Report for Fidelity® Investment Grade Bond ETF November 30, 2022 FIE-NPRT1-0123 1.

Quarterly Holdings Report Fidelity® Investment Grade Securitized ETF November 30, 2022

Quarterly Holdings Report for Fidelity® Investment Grade Securitized ETF November 30, 2022 FIG-NPRT1-0123 1.

Quarterly Holdings Report Fidelity® Low Duration Bond Factor ETF November 30, 2022

NPORT-EX 2 QTLY308920221130.htm Quarterly Holdings Report for Fidelity® Low Duration Bond Factor ETF November 30, 2022 LDE-NPRT1-0123 1.9887645.104 Nonconvertible Bonds - 87.0% Principal Amount (a) Value ($) COMMUNICATION SERVICES - 3.6% Diversified Telecommunication Services - 2.3% AT&T, Inc.: 3 month U.S. LIBOR + 1.180% 4.4157% 6/12/24 (b)(c) 1,770,000 1,778,174 U.S. Secured Overnight Fin. Rate

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 Fidelity Merrimack Street Trust (Exact name of

8-A12B 1 filing1507636.htm PRIMARY DOCUMENT OMB APPROVAL OMB Number: 3235-0056 Expires: July 31, 2025 Estimated average burden hours per response 3.0 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 Fidelity Merrimack Street Trust (Exact name of

Quarterly Holdings Report Fidelity® Sustainable Core Plus Bond ETF May 31, 2022

FOR VALIDATION PURPOSES ONLY - [381599.TX9] Quarterly Holdings Report for Fidelity® Sustainable Core Plus Bond ETF May 31, 2022 CPB-NPRT3-0722 1.9904947.100 Schedule of Investments May 31, 2022 (Unaudited) Showing Percentage of Net Assets Nonconvertible Bonds – 47.7%  Principal Amount(a) Value COMMUNICATION SERVICES – 5.6%  Diversified Telecommunication Services – 2.4% Altice France Holding SA 6.0

Quarterly Holdings Report Fidelity® Limited Term Bond ETF May 31, 2022

FOR VALIDATION PURPOSES ONLY - [381599.TX4] Quarterly Holdings Report for Fidelity® Limited Term Bond ETF May 31, 2022 T13-NPRT3-0722 1.9862237.107 Schedule of Investments May 31, 2022 (Unaudited) Showing Percentage of Net Assets Nonconvertible Bonds – 58.7%  Principal Amount(a) Value COMMUNICATION SERVICES – 3.3%  Diversified Telecommunication Services – 0.7% AT&T, Inc.: 0.90% 3/25/24 $ 680,000 $

Quarterly Holdings Report Fidelity® Investment Grade Securitized ETF May 31, 2022

Quarterly Holdings Report for Fidelity® Investment Grade Securitized ETF May 31, 2022 FIG-NPRT3-0722 1.

Quarterly Holdings Report Fidelity® Corporate Bond ETF May 31, 2022

FOR VALIDATION PURPOSES ONLY - [381599.TX1] Quarterly Holdings Report for Fidelity® Corporate Bond ETF May 31, 2022 T12-NPRT3-0722 1.9862233.107 Schedule of Investments May 31, 2022 (Unaudited) Showing Percentage of Net Assets Nonconvertible Bonds – 93.1%  Principal Amount(a) Value COMMUNICATION SERVICES – 8.7%  Diversified Telecommunication Services – 2.5% AT&T, Inc.: 3.55% 9/15/55 $ 712,000 $ 57

Quarterly Holdings Report Fidelity® Low Duration Bond Factor ETF May 31, 2022

NPORT-EX 2 NPORTPAZF614638380522.htm Quarterly Holdings Report for Fidelity® Low Duration Bond Factor ETF May 31, 2022 LDE-NPRT3-0722 1.9887646.103 Schedule of Investments May 31, 2022 (Unaudited) Showing Percentage of Net Assets Nonconvertible Bonds – 88.7%  Principal Amount(a) Value COMMUNICATION SERVICES – 3.2%  Diversified Telecommunication Services – 2.2% AT&T, Inc.: U.S. SECURED OVERNIGHT FI

Quarterly Holdings Report Fidelity® Investment Grade Bond ETF May 31, 2022

FOR VALIDATION PURPOSES ONLY - [381599.TX2] Quarterly Holdings Report for Fidelity® Investment Grade Bond ETF May 31, 2022 FIE-NPRT3-0722 1.9900959.101 Schedule of Investments May 31, 2022 (Unaudited) Showing Percentage of Net Assets Nonconvertible Bonds – 39.3%  Principal Amount(a) Value COMMUNICATION SERVICES – 4.0%  Diversified Telecommunication Services – 1.5% AT&T, Inc. 4.30% 2/15/30 $ 68,000

Quarterly Holdings Report Fidelity® Total Bond ETF May 31, 2022

NPORT-EX 2 NPORTPAKY518058470522.htm Quarterly Holdings Report for Fidelity® Total Bond ETF May 31, 2022 T14-NPRT3-0722 1.9862235.107 Schedule of Investments May 31, 2022 (Unaudited) Showing Percentage of Net Assets Nonconvertible Bonds – 36.9%  Principal Amount(a) Value COMMUNICATION SERVICES – 4.2%  Diversified Telecommunication Services – 1.2% Altice France Holding SA 6.00% 2/15/28 (b) $ 3,650,

Quarterly Holdings Report Fidelity® Sustainable Low Duration Bond ETF May 31, 2022

NPORT-EX 2 NPORTPA6R541210340522.htm Quarterly Holdings Report for Fidelity® Sustainable Low Duration Bond ETF May 31, 2022 LDB-NPRT3-0722 1.9904954.100 Schedule of Investments May 31, 2022 (Unaudited) Showing Percentage of Net Assets Nonconvertible Bonds – 70.4%  Principal Amount(a) Value COMMUNICATION SERVICES – 1.0%  Diversified Telecommunication Services – 0.5% AT&T, Inc. U.S. SECURED OVERNIGH

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 Fidelity Merrimack Street Trust (Exact name of

OMB APPROVAL OMB Number: 3235-0056 Expires: May 31, 2022 Estimated average burden hours per response 3.

COMMENTS RECEIVED ON 03/09/2022 FROM RYAN SUTCLIFFE FIDELITY MERRIMACK STREET TRUST (File Nos. 333-186372 and 811-22796) Fidelity Sustainable Core Plus Bond ETF Fidelity Sustainable Low Duration Bond ETF POST-EFFECTIVE AMENDMENT NO. 19

COMMENTS RECEIVED ON 03/09/2022 FROM RYAN SUTCLIFFE FIDELITY MERRIMACK STREET TRUST (File Nos.

COMMENTS RECEIVED ON 03/09/2022 FROM RYAN SUTCLIFFE FIDELITY MERRIMACK STREET TRUST (File Nos. 333-186372 and 811-22796) Fidelity Sustainable Core Plus Bond ETF Fidelity Sustainable Low Duration Bond ETF POST-EFFECTIVE AMENDMENT NO. 19

COMMENTS RECEIVED ON 03/09/2022 FROM RYAN SUTCLIFFE FIDELITY MERRIMACK STREET TRUST (File Nos.

Quarterly Holdings Report Fidelity® Low Duration Bond Factor ETF November 30, 2021

NPORT-EX 2 NPORTPAZF105960881121.htm Quarterly Holdings Report for Fidelity® Low Duration Bond Factor ETF November 30, 2021 LDE-NPRT1-0122 1.9887645.103 Schedule of Investments November 30, 2021 (Unaudited) Showing Percentage of Net Assets Nonconvertible Bonds – 90.1%  Principal Amount(a) Value COMMUNICATION SERVICES – 3.7%  Diversified Telecommunication Services – 2.4% AT&T, Inc.: U.S. SECURED OV

Quarterly Holdings Report Fidelity® Total Bond ETF November 30, 2021

Quarterly Holdings Report for Fidelity® Total Bond ETF November 30, 2021 T14-NPRT1-0122 1.

Quarterly Holdings Report Fidelity® Limited Term Bond ETF November 30, 2021

Quarterly Holdings Report for Fidelity® Limited Term Bond ETF November 30, 2021 T13-NPRT1-0122 1.

Quarterly Holdings Report Fidelity® Corporate Bond ETF November 30, 2021

NPORT-EX 2 NPORTPAKW255337611121.htm Quarterly Holdings Report for Fidelity® Corporate Bond ETF November 30, 2021 T12-NPRT1-0122 1.9862232.107 Schedule of Investments November 30, 2021 (Unaudited) Showing Percentage of Net Assets Nonconvertible Bonds – 92.8%  Principal Amount(a) Value COMMUNICATION SERVICES – 7.8%  Diversified Telecommunication Services – 2.9% AT&T, Inc.: 3.55% 9/15/55 $ 712,000 $

Quarterly Holdings Report Fidelity® Investment Grade Bond ETF November 30, 2021

FOR VALIDATION PURPOSES ONLY - [297263.TX2] Quarterly Holdings Report for Fidelity® Investment Grade Bond ETF November 30, 2021 FIE-NPRT1-0122 1.9900960.100 Schedule of Investments November 30, 2021 (Unaudited) Showing Percentage of Net Assets Nonconvertible Bonds – 42.7%  Principal Amount(a) Value COMMUNICATION SERVICES – 4.0%  Diversified Telecommunication Services – 1.5% AT&T, Inc. 4.30% 2/15/3

Quarterly Holdings Report Fidelity® Investment Grade Securitized ETF November 30, 2021

NPORT-EX 2 NPORTPA0S941685501121.htm Quarterly Holdings Report for Fidelity® Investment Grade Securitized ETF November 30, 2021 FIG-NPRT1-0122 1.9900962.100 Schedule of Investments November 30, 2021 (Unaudited) Showing Percentage of Net Assets U.S. Government Agency - Mortgage Securities – 99.0%  Principal Amount(a) Value Fannie Mae – 57.0%  U.S. SECURED OVERNIGHT FINL RATE 30 DAY AVERAGE (SOFR30A

Quarterly Holdings Report Fidelity® Corporate Bond ETF May 31, 2021

Quarterly Holdings Report for Fidelity® Corporate Bond ETF May 31, 2021 T12-QTLY-0721 1.

Quarterly Holdings Report Fidelity® Investment Grade Securitized ETF May 31, 2021

Quarterly Holdings Report for Fidelity® Investment Grade Securitized ETF May 31, 2021 FIG-QTLY-0721 1.

Quarterly Holdings Report Fidelity® Low Duration Bond Factor ETF May 31, 2021

Quarterly Holdings Report for Fidelity® Low Duration Bond Factor ETF May 31, 2021 LDE-QTLY-0721 1.

Quarterly Holdings Report Fidelity® Investment Grade Bond ETF May 31, 2021

Quarterly Holdings Report for Fidelity® Investment Grade Bond ETF May 31, 2021 FIE-QTLY-0721 1.

Quarterly Holdings Report Fidelity® Total Bond ETF May 31, 2021

Quarterly Holdings Report for Fidelity® Total Bond ETF May 31, 2021 T14-QTLY-0721 1.

Quarterly Holdings Report Fidelity® Limited Term Bond ETF May 31, 2021

Quarterly Holdings Report for Fidelity® Limited Term Bond ETF May 31, 2021 T13-QTLY-0721 1.

- PRIMARY DOCUMENT

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COMMENTS RECEIVED ON 01/25/2021 FROM EDWARD BARTZ FIDELITY MERRIMACK STREET TRUST (File Nos.

Quarterly Holdings Report Fidelity® Total Bond ETF November 30, 2020

Quarterly Holdings Report for Fidelity® Total Bond ETF November 30, 2020 T14-QTLY -0121 1.

Quarterly Holdings Report Fidelity® Low Duration Bond Factor ETF November 30, 2020

Quarterly Holdings Report for Fidelity® Low Duration Bond Factor ETF November 30, 2020 LDE-QTLY -0121 1.

Quarterly Holdings Report Fidelity® Corporate Bond ETF November 30, 2020

Quarterly Holdings Report for Fidelity® Corporate Bond ETF November 30, 2020 T12-QTLY-0121 1.

Quarterly Holdings Report Fidelity® Limited Term Bond ETF November 30, 2020

Quarterly Holdings Report for Fidelity® Limited Term Bond ETF November 30, 2020 T13-QTLY-0121 1.

245 Summer Street

CORRESP 17 filename17.htm 245 Summer Street Fidelity® Investments Boston, MA 02210 December 11, 2020 U.S. Securities & Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 RE: Fidelity Merrimack Street Trust (the trust): File Nos. 333-186372 and 811-22796 Fidelity Investment Grade Bond ETF Fidelity Investment Grade Securitized ETF (the fund(s)) Post-Effective Amendment No. 15 Ladies and G

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FOR VALIDATION PURPOSES ONLY - [22390.TX1] Quarterly Holdings Report for Fidelity® Corporate Bond ETF May 31, 2020 T12-QTLY-0720 1.9862233.105 Schedule of Investments May 31, 2020 (Unaudited) Showing Percentage of Net Assets Nonconvertible Bonds – 94.3%  Principal Amount Value COMMUNICATION SERVICES – 8.6%  Diversified Telecommunication Services – 2.8% AT&T, Inc.: 4.30% 2/15/30 $ 350,000 $ 397,691

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FOR VALIDATION PURPOSES ONLY - [22390.TX3] Quarterly Holdings Report for Fidelity® Low Duration Bond Factor ETF May 31, 2020 LDE-QTLY-0720 1.9887646.101 Schedule of Investments May 31, 2020 (Unaudited) Showing Percentage of Net Assets Nonconvertible Bonds – 84.6%  Principal Amount Value COMMUNICATION SERVICES – 3.9%  Diversified Telecommunication Services – 1.9% AT&T, Inc.: 3 month U.S. LIBOR + 0.

Quarterly Holdings Report Fidelity® Limited Term Bond ETF May 31, 2020

FOR VALIDATION PURPOSES ONLY - [22390.TX2] Quarterly Holdings Report for Fidelity® Limited Term Bond ETF May 31, 2020 T13-QTLY-0720 1.9862237.105 Schedule of Investments May 31, 2020 (Unaudited) Showing Percentage of Net Assets Nonconvertible Bonds – 73.4%  Principal Amount Value COMMUNICATION SERVICES – 6.5%  Diversified Telecommunication Services – 3.4% AT&T, Inc.: 2.80% 2/17/21 $ 825,000 $ 836,

Quarterly Holdings Report Fidelity® Total Bond ETF May 31, 2020

FOR VALIDATION PURPOSES ONLY - [22390.TX4] Quarterly Holdings Report for Fidelity® Total Bond ETF May 31, 2020 T14-QTLY-0720 1.9862235.105 Schedule of Investments May 31, 2020 (Unaudited) Showing Percentage of Net Assets Nonconvertible Bonds – 44.2%  Principal Amount Value COMMUNICATION SERVICES – 5.7%  Diversified Telecommunication Services – 1.9% Altice Financing S.A.: 5.00% 1/15/28 (a) $ 200,00

COMMENTS RECEIVED ON 1/14/2020 FROM KEN ELLINGTON FIDELITY CENTRAL INVESTMENT PORTFOLIOS LLC (File No. 811-21667) FIDELITY CENTRAL INVESTMENT PORTFOLIOS II LLC (File No. 811-22083) FIDELITY CHARLES STREET TRUST (File Nos. 002-73133 and 811-03221) FID

COMMENTS RECEIVED ON 1/14/2020 FROM KEN ELLINGTON FIDELITY CENTRAL INVESTMENT PORTFOLIOS LLC (File No.

COMMENTS RECEIVED ON 1/14/2020 FROM KEN ELLINGTON FIDELITY CENTRAL INVESTMENT PORTFOLIOS LLC (File No. 811-21667) FIDELITY CENTRAL INVESTMENT PORTFOLIOS II LLC (File No. 811-22083) FIDELITY CHARLES STREET TRUST (File Nos. 002-73133 and 811-03221) FID

COMMENTS RECEIVED ON 1/14/2020 FROM KEN ELLINGTON FIDELITY CENTRAL INVESTMENT PORTFOLIOS LLC (File No.

Quarterly Holdings Report Fidelity® Corporate Bond ETF November 30, 2019

FOR VALIDATION PURPOSES ONLY - [864905.TX1] Quarterly Holdings Report for Fidelity® Corporate Bond ETF November 30, 2019 T12-QTLY-0120 1.9862232.105 Schedule of Investments November 30, 2019 (Unaudited) Showing Percentage of Net Assets Nonconvertible Bonds – 91.9% Principal Amount Value COMMUNICATION SERVICES – 6.0% Diversified Telecommunication Services – 1.9% AT&T, Inc.: 4.50% 5/15/35 to 3/9/48

Quarterly Holdings Report Fidelity® Low Duration Bond Factor ETF November 30, 2019

FOR VALIDATION PURPOSES ONLY - [864905.TX3] Quarterly Holdings Report for Fidelity® Low Duration Bond Factor ETF November 30, 2019 LDE-QTLY-0120 1.9887645.101 Schedule of Investments November 30, 2019 (Unaudited) Showing Percentage of Net Assets Nonconvertible Bonds – 87.0% Principal Amount Value COMMUNICATION SERVICES – 4.2% Diversified Telecommunication Services – 2.4% AT&T, Inc.: 3 month U.S. L

Quarterly Holdings Report Fidelity® Limited Term Bond ETF November 30, 2019

FOR VALIDATION PURPOSES ONLY - [864905.TX2] Quarterly Holdings Report for Fidelity® Limited Term Bond ETF November 30, 2019 T13-QTLY-0120 1.9862236.105 Schedule of Investments November 30, 2019 (Unaudited) Showing Percentage of Net Assets Nonconvertible Bonds – 72.2% Principal Amount Value COMMUNICATION SERVICES – 5.0% Diversified Telecommunication Services – 2.5% AT&T, Inc.: 2.45% 6/30/20 $ 927,0

Quarterly Holdings Report Fidelity® Total Bond ETF November 30, 2019

FOR VALIDATION PURPOSES ONLY - [864905.TX4] Quarterly Holdings Report for Fidelity® Total Bond ETF November 30, 2019 T14-QTLY-0120 1.9862234.105 Schedule of Investments November 30, 2019 (Unaudited) Showing Percentage of Net Assets Nonconvertible Bonds – 37.3% Principal Amount Value COMMUNICATION SERVICES – 4.6% Diversified Telecommunication Services – 1.5% Altice Financing S.A. 7.50% 5/15/26 (a)

Fidelity Merrimack Street Trust NPORT-EX - -

NPORT-EX 1 NPORT5241444556704988.htm Quarterly Holdings Report for Fidelity® Low Duration Bond Factor ETF May 31, 2019 LDE-QTLY-0719 1.9887646.100 Schedule of Investments May 31, 2019 (Unaudited) Showing Percentage of Net Assets Nonconvertible Bonds – 88.2% Principal Amount Value COMMUNICATION SERVICES – 2.2% Diversified Telecommunication Services – 1.9% AT&T, Inc.: 3 month U.S. LIBOR + 0.650% 3.2

Fidelity Merrimack Street Trust NPORT-EX - -

NPORT-EX 1 NPORT5241417401223820.htm Quarterly Holdings Report for Fidelity® Corporate Bond ETF May 31, 2019 T12-QTLY-0719 1.9862233.104 Schedule of Investments May 31, 2019 (Unaudited) Showing Percentage of Net Assets Nonconvertible Bonds – 89.0% Principal Amount Value COMMUNICATION SERVICES – 3.9% Diversified Telecommunication Services – 1.9% AT&T, Inc.: 4.50% 5/15/35 to 3/9/48 $ 693,000 $ 678,1

Fidelity Merrimack Street Trust NPORT-EX - -

HTML Quarterly Holdings Report for Fidelity® Total Bond ETF May 31, 2019 T14-QTLY-0719 1.

Fidelity Merrimack Street Trust NPORT-EX - -

Quarterly Holdings Report for Fidelity® Limited Term Bond ETF May 31, 2019 T13-QTLY-0719 1.

I, Laura M. Del Prato, certify that:

Certifications pursuant to Rule 30a-2(a) Exhibit EX-99.CERT I, Laura M. Del Prato, certify that: 1. I have reviewed this report on Form N-Q of Fidelity Merrimack Street Trust; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements

Fidelity Merrimack Street Trust FIDELITY MERRIMACK STREET TRUST (Quarterly Schedule of Portfolio Holdings)

Fidelity Merrimack Street Trust UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

I, Laura M. Del Prato, certify that:

Section 302 Certifications Exhibit EX-99.CERT I, Laura M. Del Prato, certify that: 1. I have reviewed this report on Form N-Q of Fidelity Merrimack Street Trust; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, no

Fidelity Merrimack Street Trust FIDELITY MERRIMACK STREET TRUST (Quarterly Schedule of Portfolio Holdings)

N-Q 1 d566577dnq.htm FIDELITY MERRIMACK STREET TRUST UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-22796 Fidelity Merrimack Street Trust (Exact name of registrant as specified in charter) 245 Summer St., Boston, Massachusetts 02210 (Address

Fidelity Merrimack Street Trust 8-A12B

Converted by EDGARwiz UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Fidelity Covington Trust CORRESP

COMMENTS RECEIVED ON 05/09/2018 FROM EDWARD BARTZ FIDELITY COVINGTON TRUST (File Nos.

Foreign Sub-Custodian Network for State Street Bank & Trust

Foreign Sub-Custodian Network for State Street Bank & Trust Exhibit 77Q1 – Additional Items Item 15 Foreign Sub-Custodian Network for State Street Bank & Trust Market Subcustodian Address Albania Raiffeisen Bank sh.

245 Summer Street

CORRESP 8 filename8.htm 245 Summer Street Fidelity® Investments Boston, MA 02210 March 26, 2018 U.S. Securities & Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 RE: Fidelity Merrimack Street Trust (the trust): File Nos. 333-186372 and 811-22796 Fidelity Low Duration Bond Factor ETF (the fund(s)) Post-Effective Amendment No. 8 Ladies and Gentlemen: Pursuant to Rule 8b-16 under the In

I, Stephanie J. Dorsey, certify that:

EX-99.(CERT) 2 d528140dex99cert.htm CERTIFICATIONS Exhibit EX-99.CERT I, Stephanie J. Dorsey, certify that: 1. I have reviewed this report on Form N-Q of Fidelity Merrimack Street Trust; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-22796 Fidelity Merrimack Street Trust (Exact

Fidelity Merrimack Street Trust UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Foreign Sub-Custodian Network for State Street Bank & Trust

Exhibit 77Q1 ? Additional Items Item 15 Foreign Sub-Custodian Network for State Street Bank & Trust Market Subcustodian Address Albania Raiffeisen Bank sh.

Report of Independent Registered Public Accounting Firm

Report of Independent Registered Public Accounting Firm To the Board of Trustees of Fidelity Merrimack Street Trust and Shareholders of Fidelity Total Bond ETF, Fidelity Limited Term Bond ETF and Fidelity Corporate Bond ETF: In planning and performing our audits of the financial statements of Fidelity Total Bond ETF, Fidelity Limited Term Bond ETF and Fidelity Corporate Bond ETF (funds of Fidelity

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-22796 Fidelity Merrimack Street Trust (Exact

Fidelity Merrimack Street Trust UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

I, Stephanie J. Dorsey, certify that:

EX-99.(CERT) 2 d422883dex99cert.htm CERTIFICATIONS Exhibit EX-99.CERT I, Stephanie J. Dorsey, certify that: 1. I have reviewed this report on Form N-Q of Fidelity Merrimack Street Trust; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such

Foreign Sub-Custodian Network for State Street Bank & Trust

Exhibit 77Q1 - Additional Items Item 15 Foreign Sub-Custodian Network for State Street Bank & Trust Country Subcustodian Address Australia Hongkong and Shanghai Banking Corporation Ltd.

COMMENTS RECEIVED ON FEBRUARY 23, 2017 FROM KENNETH ELLINGTON FIDELITY ABERDEEN STREET TRUST (File Nos. 811-06440 and 033-43529) FIDELITY ADVISOR SERIES I (File Nos. 811-03785 and 002-84776) FIDELITY BOYLSTON STREET TRUST (File Nos. 811-03407 and 002

COMMENTS RECEIVED ON FEBRUARY 23, 2017 FROM KENNETH ELLINGTON FIDELITY ABERDEEN STREET TRUST (File Nos.

I, Stephanie J. Dorsey, certify that:

EX-99.(CERT) 2 d302511dex99cert.htm CERTIFICATIONS Exhibit EX-99.CERT I, Stephanie J. Dorsey, certify that: 1. I have reviewed this report on Form N-Q of Fidelity Merrimack Street Trust; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such

Fidelity Merrimack Street Trust - FIDELITY MERRIMACK STREET TRUST

N-Q 1 d302511dnq.htm FIDELITY MERRIMACK STREET TRUST UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-22796 Fidelity Merrimack Street Trust (Exact name of registrant as specified in charter) 245 Summer St., Boston, Massachusetts 02210 (Address

Foreign Sub-Custodian Network for State Street Bank & Trust

Exhibit 77Q1 ? Additional Items Item 15 Foreign Sub-Custodian Network for State Street Bank & Trust Market Subcustodian Address Albania Raiffeisen Bank sh.

Report of Independent Registered Public Accounting Firm

Report of Independent Registered Public Accounting Firm To the Board of Trustees of Fidelity Merrimack Street Trust and Shareholders of Fidelity Corporate Bond ETF, Fidelity Limited Term Bond ETF and Fidelity Total Bond ETF: In planning and performing our audits of the financial statements of Fidelity Corporate Bond ETF, Fidelity Limited Term Bond ETF and Fidelity Total Bond ETF (funds of Fidelity

I, Stephanie J. Dorsey, certify that:

EX-99.(CERT) 2 d221663dex99cert.htm CERTIFICATIONS Exhibit EX-99.CERT I, Stephanie J. Dorsey, certify that: 1. I have reviewed this report on Form N-Q of Fidelity Merrimack Street Trust; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such

Fidelity Merrimack Street Trust - FIDELITY MERRIMACK STREET TRUST

N-Q 1 d221663dnq.htm FIDELITY MERRIMACK STREET TRUST UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-22796 Fidelity Merrimack Street Trust (Exact name of registrant as specified in charter) 245 Summer St., Boston, Massachusetts 02210 (Address

# of Votes

Fidelity Corporate Bond ETF Fidelity Limited Term Bond ETF Fidelity Total Bond ETF A special meeting of shareholders was held on November 18, 2015.

Foreign Sub-Custodian Network for State Street Bank & Trust

Exhibit 77Q1 - Additional Items Item 15 Foreign Sub-Custodian Network for State Street Bank & Trust Market Subcustodian Address Albania Raiffeisen Bank sh.

Fidelity Merrimack Street Trust - FIDELITY MERRIMACK STREET TRUST

N-Q 1 d112711dnq.htm FIDELITY MERRIMACK STREET TRUST UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-22796 Fidelity Merrimack Street Trust (Exact name of registrant as specified in charter) 245 Summer St., Boston, Massachusetts 02210 (Address

I, Stephanie J. Dorsey, certify that:

Certifications Exhibit EX-99.CERT I, Stephanie J. Dorsey, certify that: 1. I have reviewed this report on Form N-Q of Fidelity Merrimack Street Trust; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleadin

Foreign Sub-Custodian Network for State Street Bank & Trust

Exhibit 77Q1 - Additional Items Item 15 Foreign Sub-Custodian Network for State Street Bank & Trust Market Subcustodian Address Albania Raiffeisen Bank sh.

Report of Independent Registered Public Accounting Firm

Report of Independent Registered Public Accounting Firm To the Board of Trustees of Fidelity Merrimack Street Trust and Shareholders of Fidelity Corporate Bond ETF, Fidelity Limited Term Bond ETF and Fidelity Total Bond ETF: In planning and performing our audits of the financial statements of Fidelity Corporate Bond ETF, Fidelity Limited Term Bond ETF and Fidelity Total Bond ETF (funds of Fidelity

How to vote Additional information

SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant [X] Filed by a Party other than the Registrant [ ] Check the appropriate box: [ ] Preliminary Proxy Statement [ ] Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) [X] Definitive Proxy Statement [ ] Definitive Additional Materials [ ] Solic

Fidelity Merrimack Street Trust - FIDELITY MERRIMACK STREET TRUST

Fidelity Merrimack Street Trust UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

I, Stephanie J. Dorsey, certify that:

EX-99.(CERT) 2 d43162dex99cert.htm CERTIFICATIONS Exhibit EX-99.CERT I, Stephanie J. Dorsey, certify that: 1. I have reviewed this report on Form N-Q of Fidelity Merrimack Street Trust; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such

Foreign Sub-Custodian Newtork for State Street Bank & Trust

Exhibit 77Q1 - Additional Items Item 15 Foreign Sub-Custodian Newtork for State Street Bank & Trust Market Subcustodian ADDRESS Albania Raiffeisen Bank sh.

Fidelity Merrimack Street Trust - FIDELITY MERRIMACK STREET TRUST

N-Q 1 d858630dnq.htm FIDELITY MERRIMACK STREET TRUST UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-22796 Fidelity Merrimack Street Trust (Exact name of registrant as specified in charter) 245 Summer St., Boston, Massachusetts 02210 (Address

I, Stephanie J. Dorsey, certify that:

EX-99.(CERT) 2 d858630dex99cert.htm CERTIFICATIONS Exhibit EX-99.CERT I, Stephanie J. Dorsey, certify that: 1. I have reviewed this report on Form N-Q of Fidelity Merrimack Street Trust; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such

One International Place, 40th Floor

Exhibit (i) Dechert LLP One International Place, 40th Floor 100 Oliver Street Boston, MA 02110-2605 +1 617 728 7100 Main +1 617 426 6567 Fax www.

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit (j) CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We hereby consent to the use in this Registration Statement on Form N-1A of our report dated September 23, 2014, relating to the Statement of Assets and Liabilities of Fidelity Total Bond ETF, which appears in such Registration Statement.

APPENDIX "A" List of Investment Companies

Exhibit g(6) APPENDIX "A" List of Investment Companies Fidelity MSCI Consumer Discretionary Index ETF Fidelity MSCI Consumer Staples Index ETF Fidelity MSCI Energy Index ETF Fidelity MSCI Financials Index ETF Fidelity MSCI Health Care Index ETF Fidelity MSCI Industrials Index ETF Fidelity MSCI Information Technology Index ETF Fidelity MSCI Materials Index ETF Fidelity MSCI Telecommunication Servic

Fidelity Merrimack Street Trust CORRESP - -

(logo) Fidelity Investments®|||||||||||||||||||||||||||||||||||||||||||||||||||||||||| FPCMS 245 Summer Street Boston, MA 02210 617-563-7000 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| September 25, 2014 U.

GENERAL DISTRIBUTION AGREEMENT FIDELITY MERRIMACK STREET TRUST FIDELITY DISTRIBUTORS CORPORATION

Exhibit e(1) GENERAL DISTRIBUTION AGREEMENT between FIDELITY MERRIMACK STREET TRUST and FIDELITY DISTRIBUTORS CORPORATION Agreement made this 18th day of September, 2014, between Fidelity Merrimack Street Trust, a Massachusetts business trust having its principal place of business in Boston, Massachusetts and which may issue one or more series of beneficial interest ("Issuer"), with respect to shares of Fidelity Corporate Bond ETF, a series of the Issuer, and Fidelity Distributors Corporation, a Massachusetts corporation having its principal place of business in Smithfield, Rhode Island ("Distributors").

Fidelity Merrimack Street Trust N-1A/A - -

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-1A REGISTRATION STATEMENT (No. 333-186372) UNDER THE SECURITIES ACT OF 1933 [X] Pre-Effective Amendment No. 5 [X] Post-Effective Amendment No. [ ] and REGISTRATION STATEMENT (No. 811-22796) UNDER THE INVESTMENT COMPANY ACT OF 1940 [X] Amendment No. 5 [X] Fidelity Merrimack Street Trust (Exact Name of Registrant as Specified in Charte

FORM OF FIDELITY MERRIMACK STREET TRUST PARTICIPATION AGREEMENT

Exhibit h(1) FORM OF FIDELITY MERRIMACK STREET TRUST PARTICIPATION AGREEMENT This Participation Agreement (the "Agreement") is made as of the date set forth below between Fidelity Merrimack Street Trust (the "Trust") on behalf of each series of the Trust listed on Annex A hereto (as may be amended from time to time by the Trust), and (the ""), on behalf of each of its series listed on Annex B hereto, as may be amended from time to time by the (each, an "Investing Fund").

Schedule A Trusts and Portfolios Covered by the Sub-Advisory Agreement, dated as of June 19, 2008, between Fidelity Investments Money Management, Inc. Fidelity Management & Research (U.K.), Inc.

Exhibit d(10) Schedule A Trusts and Portfolios Covered by the Sub-Advisory Agreement, dated as of June 19, 2008, between Fidelity Investments Money Management, Inc.

MANAGEMENT CONTRACT FIDELITY MERRIMACK STREET TRUST: FIDELITY CORPORATE BOND ETF FIDELITY INVESTMENTS MONEY MANAGEMENT, INC.

Exhibit d(1) MANAGEMENT CONTRACT between FIDELITY MERRIMACK STREET TRUST: FIDELITY CORPORATE BOND ETF and FIDELITY INVESTMENTS MONEY MANAGEMENT, INC.

MANAGEMENT CONTRACT FIDELITY MERRIMACK STREET TRUST: FIDELITY LIMITED TERM BOND ETF FIDELITY INVESTMENTS MONEY MANAGEMENT, INC.

Exhibit d(2) MANAGEMENT CONTRACT between FIDELITY MERRIMACK STREET TRUST: FIDELITY LIMITED TERM BOND ETF and FIDELITY INVESTMENTS MONEY MANAGEMENT, INC.

GENERAL DISTRIBUTION AGREEMENT FIDELITY MERRIMACK STREET TRUST FIDELITY DISTRIBUTORS CORPORATION

Exhibit e(2) GENERAL DISTRIBUTION AGREEMENT between FIDELITY MERRIMACK STREET TRUST and FIDELITY DISTRIBUTORS CORPORATION Agreement made this 18th day of September, 2014, between Fidelity Merrimack Street Trust, a Massachusetts business trust having its principal place of business in Boston, Massachusetts and which may issue one or more series of beneficial interest ("Issuer"), with respect to shares of Fidelity Limited Term Bond ETF, a series of the Issuer, and Fidelity Distributors Corporation, a Massachusetts corporation having its principal place of business in Smithfield, Rhode Island ("Distributors").

DISTRIBUTION AND SERVICE PLAN FIDELITY MERRIMACK STREET TRUST: FIDELITY CORPORATE BOND ETF

Exhibit m(1) DISTRIBUTION AND SERVICE PLAN FIDELITY MERRIMACK STREET TRUST: FIDELITY CORPORATE BOND ETF 1.

CERTIFICATE OF AUTHORIZED PERSONS OF THE AUTHORIZED PARTICIPANT [ ] ETF TRUST

Exhibit h(2) FORM OF AUTHORIZED PARTICIPANT AGREEMENT Fidelity Covington Trust, Fidelity Merrimack Street Trust and Fidelity Commonwealth Trust This Authorized Participant Agreement (the "Agreement") is entered into between Fidelity Distributors Corporation (the "Distributor") and [] (the "Participant") and is subject to acceptance by State Street Bank and Trust Company (the "Transfer Agent").

GENERAL DISTRIBUTION AGREEMENT FIDELITY MERRIMACK STREET TRUST FIDELITY DISTRIBUTORS CORPORATION

Exhibit e(3) GENERAL DISTRIBUTION AGREEMENT between FIDELITY MERRIMACK STREET TRUST and FIDELITY DISTRIBUTORS CORPORATION Agreement made this 18th day of September, 2014, between Fidelity Merrimack Street Trust, a Massachusetts business trust having its principal place of business in Boston, Massachusetts and which may issue one or more series of beneficial interest ("Issuer"), with respect to shares of Fidelity Total Bond ETF, a series of the Issuer, and Fidelity Distributors Corporation, a Massachusetts corporation having its principal place of business in Smithfield, Rhode Island ("Distributors").

Schedule A Trusts and Portfolios Covered by the Sub-Advisory Agreement, dated as of September 9, 2008, Fidelity Investments Money Management, Inc. Fidelity Management & Research (Hong Kong) Limited

Exhibit d(6) Schedule A Trusts and Portfolios Covered by the Sub-Advisory Agreement, dated as of September 9, 2008, between Fidelity Investments Money Management, Inc.

Fidelity Merrimack Street Trust 8-A12B - -

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 Fidelity Merrimack Street Trust (Exact name of registrant as specified in its charter) Massachusetts (State of incorporation or organization) 245 Summer Street Boston, Massachusetts 02210 (Address

Schedule A Trusts and Portfolios Covered by the Sub-Advisory Agreement, dated as of September 29, 2008, Fidelity Investments Money Management, Inc. Fidelity Management & Research (Japan), Inc.

Exhibit d(8) Schedule A Trusts and Portfolios Covered by the Sub-Advisory Agreement, dated as of September 29, 2008, between Fidelity Investments Money Management, Inc.

MANAGEMENT CONTRACT FIDELITY MERRIMACK STREET TRUST: FIDELITY TOTAL BOND ETF FIDELITY INVESTMENTS MONEY MANAGEMENT, INC.

Exhibit d(3) MANAGEMENT CONTRACT between FIDELITY MERRIMACK STREET TRUST: FIDELITY TOTAL BOND ETF and FIDELITY INVESTMENTS MONEY MANAGEMENT, INC.

SUB-ADVISORY AGREEMENT FMR CO., INC. and FIDELITY INVESTMENTS MONEY MANAGEMENT, INC.

Exhibit d(4) SUB-ADVISORY AGREEMENT between FMR CO., INC. and FIDELITY INVESTMENTS MONEY MANAGEMENT, INC. AGREEMENT made this 18th day of September, 2014, by and between FMR Co., Inc., a Massachusetts corporation with principal offices at 245 Summer Street, Boston, Massachusetts (hereinafter called the ´´Sub-Adviser") and Fidelity Investments Money Management, Inc., a New Hampshire corporation wit

Fidelity Total Bond ETF

Exhibit (k) Fidelity Total Bond ETF STATEMENT OF ASSETS & LIABILITIES September 22, 2014 Assets: Cash $100,000 Total Assets 100,000 Liabilities: 0 Net Assets: $100,000 Net Assets consist of: $100,000 Paid in Capital Net Assets, for 2,000 shares outstanding $100,000 Net asset value, offering price and redemption price per share ($100,000/2,000 shares outstanding) $50.

DISTRIBUTION AND SERVICE PLAN FIDELITY MERRIMACK STREET TRUST: FIDELITY TOTAL BOND ETF

Exhibit m(3) DISTRIBUTION AND SERVICE PLAN FIDELITY MERRIMACK STREET TRUST: FIDELITY TOTAL BOND ETF 1.

Purchase Agreement, dated September 18, 2014, between Fidelity Merrimack Street Trust and FIMM, LLC is incorporated herein by reference to Exhibit (l) of Pre-Effective Amendment No. 5.

Exhibit (l) PURCHASE AGREEMENT Purchase Agreement, dated September 18, 2014, between Fidelity Merrimack Street Trust (the "Trust"), a Massachusetts business trust that is a registered investment company under the Investment Company Act of 1940 (the "1940 Act"), and FIMM, LLC ("FIMM"), a limited liability company under the laws of the State of New Hampshire.

DISTRIBUTION AND SERVICE PLAN FIDELITY MERRIMACK STREET TRUST: FIDELITY LIMITED TERM BOND ETF

Exhibit m(2) DISTRIBUTION AND SERVICE PLAN FIDELITY MERRIMACK STREET TRUST: FIDELITY LIMITED TERM BOND ETF 1.

APPENDIX A TO CUSTODIAN AGREEMENT STATE STREET BANK AND TRUST COMPANY EACH OF THE INVESTMENT COMPANIES HERETO UPDATED AS OF SEPTEMBER 18, 2014

Exhibit g(2) APPENDIX A TO CUSTODIAN AGREEMENT BETWEEN STATE STREET BANK AND TRUST COMPANY AND EACH OF THE INVESTMENT COMPANIES HERETO UPDATED AS OF SEPTEMBER 18, 2014 Trust Fund Effective Fidelity Advisor Series I Fidelity Advisor Dividend Growth Fund January 1, 2007 Fidelity Advisor Series I Fidelity Advisor Equity Value Fund January 1, 2007 Fidelity Advisor Series I Fidelity Advisor Series Grow

Fidelity Merrimack Street Trust CORRESP - -

CORRESP 1 filename1.htm September 25, 2014 VIA EDGAR Attn: Edward Bartz Division of Investment Management U.S. Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Re: Fidelity Merrimack Street Trust Fidelity Corporate Bond ETF Fidelity Total Bond ETF Fidelity Limited Term Bond ETF Securities Act File No: 333-186372 Investment Company Act File No. 811-22796 Dear Mr. Bartz:

Contents Fund Summary Fund Basics Shareholder Information Fund Services Contents Fund Summary Fund Basics Shareholder Information Fund Services Contents Fund Summary Fund Basics Shareholder Information Fund Services Appendix

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-1A REGISTRATION STATEMENT (No. 333-186372) UNDER THE SECURITIES ACT OF 1933 [X] Pre-Effective Amendment No. 4 [X] Post-Effective Amendment No. [ ] and REGISTRATION STATEMENT (No. 811-22796) UNDER THE INVESTMENT COMPANY ACT OF 1940 [X] Amendment No. 4 [X] Fidelity Merrimack Street Trust (Exact Name of Registrant as Specified in Charte

(logo) Fidelity Investments

(logo) Fidelity Investments®|||||||||||||||||||||||||||||||||||||||||||||||||||||||||| FPCMS 245 Summer Street Boston, MA 02210 617-563-7000 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| September 10, 2014 U.

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COMMENTS RECEIVED ON MAY 8, 2014 FROM EDWARD BARTZ FIDELITY MERRIMACK STREET TRUST (File Nos.

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SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-1A REGISTRATION STATEMENT (No. 333-186372) UNDER THE SECURITIES ACT OF 1933 [X] Pre-Effective Amendment No. 3 [X] Post-Effective Amendment No. [ ] and REGISTRATION STATEMENT (No. 811-22796) UNDER THE INVESTMENT COMPANY ACT OF 1940 [X] Amendment No. 3 [X] Fidelity Merrimack Street Trust (Exact Name of Registrant as Specified in Charte

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(logo) Fidelity Investments?|||||||||||||||||||||||||||||||||||||||||||||||||||||||||| FPCMS 245 Summer Street Boston, MA 02210 617-563-7000 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| April 17, 2014 U.

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COMMENTS RECEIVED ON FEBRUARY 27, 2013 FROM EDWARD BARTZ FIDELITY MERRIMACK STREET TRUST (File Nos.

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COMMENTS RECEIVED ON AUGUST 16, 2013 FROM EDWARD BARTZ FIDELITY MERRIMACK STREET TRUST (File Nos.

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(logo) Fidelity Investments?|||||||||||||||||||||||||||||||||||||||||||||||||||||||||| FPCMS 245 Summer Street Boston, MA 02210 617-563-7000 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| July 26, 2013 U.

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SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-1A REGISTRATION STATEMENT (No. 333-186372) UNDER THE SECURITIES ACT OF 1933 [X] Pre-Effective Amendment No. 2 [X] Post-Effective Amendment No. [ ] and REGISTRATION STATEMENT (No. 811-22796) UNDER THE INVESTMENT COMPANY ACT OF 1940 [X] Amendment No. 2 [X] Fidelity Merrimack Street Trust (Exact Name of Registrant as Specified in Charte

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(logo) Fidelity Investments?|||||||||||||||||||||||||||||||||||||||||||||||||||||||||| FPCMS 245 Summer Street Boston, MA 02210 617-563-7000 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| May 29, 2013 U.

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SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-1A REGISTRATION STATEMENT (No. 333-186372) UNDER THE SECURITIES ACT OF 1933 [X] Pre-Effective Amendment No. 1 [X] Post-Effective Amendment No. [ ] and REGISTRATION STATEMENT (No. 811-22796) UNDER THE INVESTMENT COMPANY ACT OF 1940 [X] Amendment No. 1 [X] Fidelity Merrimack Street Trust (Exact Name of Registrant as Specified in Charte

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N-8A 1 main.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-8A NOTIFICATION OF REGISTRATION FILED PURSUANT TO SECTION 8(a) OF THE INVESTMENT COMPANY ACT OF 1940 The undersigned investment company hereby notifies the Securities and Exchange Commission that it registers under and pursuant to the provisions of Section 8(a) of the Investment Company Act of 1940 and in connection w

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N-1A 1 main.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-1A REGISTRATION STATEMENT (No. ) UNDER THE SECURITIES ACT OF 1933 [X] Pre-Effective Amendment No. [ ] Post-Effective Amendment No. [ ] and REGISTRATION STATEMENT (No. 811-22796) UNDER THE INVESTMENT COMPANY ACT OF 1940 [X] Amendment No. [ ] Fidelity Merrimack Street Trust (Exact Name of Registrant as Specified in Char

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(logo) Fidelity Investments?|||||||||||||||||||||||||||||||||||||||||||||||||||||||||| FPCMS 82 Devonshire Street Boston MA 02109-3614 617-563-7000 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| February 1, 2013 U.

Declaration of Trust, dated November 15, 2012, is incorporated herein by reference to Exhibit (a) of the initial Registration Statement.

Exhibit (a) DECLARATION OF TRUST Fidelity Merrimack Street Trust DECLARATION OF TRUST, made November 15, 2012 by each of the Trustees whose signature is affixed hereto (the "Trustees").

Bylaws of the Trust, dated November 15, 2012, is incorporated herein by reference to Exhibit (b) of the initial Registration Statement.

Exhibit (b) November 15, 2012 BYLAWS of FIDELITY MASSACHUSETTS BUSINESS TRUSTS These Bylaws of Fidelity Massachusetts business trusts (individually the "Trust") are subject to the Declaration of Trust of the Trust, as from time to time amended, supplemented or restated (the "Declaration of Trust").