Company: CHY
Filing Date: 2025-12-29
Form Type: N-CSR
Source: 0001104659-25-124662
Chunk: 210

Company: CALAMOS CONVERTIBLE & HIGH INCOME FUND
Filing Date: 2025-12-29
Form: N-CSR
Chunk 210
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 obtain the securities loaned at any time. Item 18. Recovery of Erroneously Awarded Compensation Not applicable. Item 19. Exhibits (a)(1) See Code of Ethics attachment (a)(2) Not applicable (a)(3) Certifications pursuant to Rule 30a-2(a) under the 1940 Act and Section 302 of the Sarbanes-Oxley Act of 2002 are attached hereto. (a)(3)(iii) Proxy Voting Policies and Procedures (a)(3)(iv) Consent of Independent Registered Public Accounting Firm (a)(4) Not applicable (a)(5) Not applicable (b) Certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. Calamos Convertible and High Income Fund

| By:    | /s/ John P. Calamos, Sr.    |
| Name:  | John P. Calamos, Sr.        |
| Title: | Principal Executive Officer |
| Date:  | December 29, 2025           |
| By:    | /s/ Thomas E. Herman        |
| Name:  | Thomas E. Herman            |
| Title: | Principal Financial Officer |
| Date:  | December 29, 2025           |

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

| By:    | /s/ John P. Calamos, Sr.    |
| Name:  | John P. Calamos, Sr.        |
| Title: | Principal Executive Officer |
| Date:  | December 29, 2025           |
| By:    | /s/ Thomas E. Herman        |
| Name:  | Thomas E. Herman            |
| Title: | Principal Financial Officer |
| Date:  | December 29, 2025           |