UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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) January 12, 2021

Calamos Dynamic Convertible and Income Fund

(Exact Name of Registrant as Specified in Its Charter)

Delaware

(State or Other Jurisdiction of Incorporation)

(630) 245-7200

(Registrant’s Telephone Number, Including Area Code)

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):

Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Name of each exchange on which registered Symbol(s)

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

Emerging growth company o

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. o

Item 5.03.     Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.

On January 11, 2021, the Board of Trustees of Calamos Dynamic Convertible and Income Fund (the “Trust”) amended and restated in the entirety the Trust’s Declaration of Trust (the “Amended and Restated Declaration of Trust”) and the Trust’s By-Laws (the “Amended and Restated Bylaws”). The amendments provide for, among other things: (i) the election of Trustees by a majority of the Fund’s outstanding voting securities entitled to vote; (ii) certain Trustee qualifications; and (iii) certain advance notice requirements for a shareholder to properly bring a matter before a shareholder meeting.

The foregoing description of the Amended and Restated Declaration of Trust and the Amended and Restated Bylaws does not purport to be complete and is qualified in its entirety by reference to the full text of the Amended and Restated Declaration of Trust and the Amended and Restated Bylaws, which are attached hereto as Exhibit 3.1 and Exhibit 3.2, respectively, and are incorporated herein by reference.

Item 9.01.     Financial Statements and Exhibits.

(d)   Exhibits

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SIGNATURE

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

Date: January 12, 2021

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