Company: CHY
Filing Date: 2025-05-12
Form Type: DEF 14A
Source: 0001104659-25-047185
Chunk: 4

Company: CALAMOS CONVERTIBLE & HIGH INCOME FUND
Filing Date: 2025-05-12
Form: DEF 14A
Chunk 4
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 INCOME FUND

CALAMOS ®CONVERTIBLE AND HIGH INCOME FUND

CALAMOS ®STRATEGIC TOTAL RETURN FUND

CALAMOS ®GLOBAL TOTAL RETURN FUND

CALAMOS ®GLOBAL DYNAMIC INCOME FUND

CALAMOS ®DYNAMIC CONVERTIBLE AND INCOME FUND

CALAMOS ®LONG/SHORT EQUITY & DYNAMIC INCOME TRUST</div>

(3) To elect five trustees of CPZ, to be elected by the holders of common shares, voting as a single class, one such trustee to serve until the annual meeting of shareholders in 2026, one such trustee to serve until the annual meeting of shareholders in 2027, and three such trustees to serve until the annual meeting of shareholders in 2028, or, for each such trustee, until his or her successor is elected and qualified.

(4) To consider and act upon any other matters that may properly come before the meeting and at any adjournment or postponement thereof.

Shareholders of record as of the close of business on May 5, 2025, are entitled to notice of, and to vote at, the meeting (or any postponement or adjournment of the meeting).

Whether or not you plan to attend the annual meeting, it is important that your shares be represented and voted. Please complete, sign, date and return the enclosed proxy card promptly using the enclosed postage-paid envelope. The enclosed proxy card, when returned properly executed, will be voted in the manner directed in the proxy statement. You may also vote by phone or Internet by following the instructions on the enclosed proxy card.

Important Notice Regarding the Availability of Proxy Materials for the Meeting to be Held on June 23, 2025:This Notice and the Proxy Statement are available on the Internet atwww.Calamos.com/fundproxy.

By Order of the Board of Trustees of each Fund,

Erik D. Ojala
Secretary

May 13, 2025
Naperville, Illinois

<div align='center'>PLEASE COMPLETE AND RETURN THE ENCLOSED PROXY CARD(S) OR REGISTER YOUR VOTE ONLINE OR BY TELEPHONE WHETHER OR NOT YOU EXPECT TO BE PRESENT AT THE MEETING. YOU MAY STILL VOTE AT THE MEETING IF YOU ATTEND THE MEETING.

CALAMOS ®CONVERTIBLE OPPORTUNITIES AND INCOME FUND ("CHI")

CALAMOS ®CONVERTIBLE AND HIGH INCOME FUND ("CHY")

CAL