UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of Earliest Event Reported): August 13, 2020

Eaton Vance Municipal Bond Fund

(Exact Name of Registrant as Specified in its Charter)

Massachusetts	811-21142	000000000
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)
Two International Place
Boston, Massachusetts		02110
(Address of Principal Executive Offices)		(Zip Code)

Registrant’s Telephone Number, Including Area Code: (617) 482-8260

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2 below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class	Trading Symbol(s)	Name of Each Exchange on Which Registered
Common Shares of beneficial interest, $0.01 par value	EIM	NYSE American LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (CFR 240.12b-2).

Emerging growth company  ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 5.03 Amendments to Articles of Incorporation or By-Laws; Change in Fiscal Year.

On August 13, 2020, the Board of Trustees of Eaton Vance Municipal Bond Fund (the “Fund”) amended and restated the By-Laws of the Fund (the “Amended and Restated By-Laws”). The Amended and Restated By-Laws include provisions (the “Control Share Provisions”) pursuant to which, in summary, a shareholder who obtains beneficial ownership of Fund shares in a “Control Share Acquisition” may exercise voting rights with respect to such shares only to the extent the authorization of such voting rights is approved by other shareholders of the Fund. The Control Share Provisions are primarily intended to protect the interests of the Fund and its shareholders by limiting the risk that the Fund will become subject to undue influence by opportunistic hedge funds or other activist investors. As described further below, the Control Share Provisions do not eliminate voting rights for shares acquired in Control Share Acquisitions, but rather, they entrust the Fund’s other “non-interested” shareholders with determining whether to approve the authorization of voting rights for such shares.

Subject to various conditions and exceptions, the Amended and Restated By-Laws define a “Control Share Acquisition” to include an acquisition of Fund shares that, but for the Control Share Provisions, would give the beneficial owner, upon the acquisition of such shares, the ability to exercise voting power in the election of Fund Trustees in any of the following ranges:

(i) One-tenth or more, but less than one-fifth of all voting power;

(ii) One-fifth or more, but less than one-third of all voting power;

(iii) One-third or more, but less than a majority of all voting power; or

(iv) A majority or more of all voting power.

Share acquisitions prior to August 13, 2020 are excluded from the definition of Control Share Acquisition, though such shares are included in assessing whether any subsequent share acquisition exceeds one of the enumerated thresholds. Subject to various conditions and procedural requirements set forth in the Amended and Restated By-Laws, including the delivery of a “Control Share Acquisition Statement” to the Fund’s secretary setting forth certain required information, a shareholder who obtains beneficial ownership of shares in a Control Share Acquisition generally may request a vote of Fund shareholders (excluding such acquiring shareholder and certain other interested shareholders) to approve the authorization of voting rights for such shares at the next annual meeting of Fund shareholders following the Control Share Acquisition.

The above discussion is only a high-level summary of certain aspects of the Control Share Provisions, and is qualified in its entirety by reference to the full Amended and Restated By-Laws. Investors should refer to the Amended and Restated By-Laws for more information.

The Amended and Restated Bylaws were effective as of August 13, 2020 and are attached as an Exhibit and are incorporated herein by reference.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.	Description
5.03	Amended and Restated By-Laws of Eaton Vance Municipal Bond Fund dated August 13, 2020

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	Eaton Vance Municipal Bond Fund
	By:	/s/ Maureen A. Gemma
		Maureen A. Gemma
Date: August 13, 2020		Vice President, Secretary & Chief Legal Officer