Company: CHY
Filing Date: 2025-08-29
Form Type: 424B3
Source: 0001104659-25-085285
Chunk: 3

Company: CALAMOS CONVERTIBLE & HIGH INCOME FUND
Filing Date: 2025-08-29
Form: 424B3
Chunk 3
---
. Breen and Stuckey and Messrs. Armstrong, Calamos, Koudounis, Neal, Phlegar, Rybak, Toub, and Wennlund has more than 25 years of experience in the financial services industry. Each of Mses. Breen and Stuckey and Messrs. Calamos, Koudounis, Neal, Phlegar, Rybak, Toub, and Wennlund has experience serving on boards of other entities, including other investment companies. Each of Ms. Breen and Messrs. Calamos, Neal, Phlegar, Rybak, Toub, and Wennlund has earned a Masters of Business Administration degree.

| (6) | Effective September 1, 2025, the                                                       
 section titled “Compensation of Officers and Trustees” under the “Management           
 of the Fund” section beginning on page S-36 of the Statement of Additional Information 
 is amended and restated as follows:                                                    |

TRUSTEE AND OFFICER COMPENSATION. The Fund does not compensate any of the trustees who are affiliated persons of Calamos Advisors. Although they are compensated, the non-interested trustees do not receive any pension or retirement benefits from the Trust. Mr. Mickey is the only Fund officer who receives compensation from the Fund. The following table sets forth information with respect to the compensation paid by the Fund and the Fund Complex during the fiscal year ended October 31, 2024 to each of the trustees then serving.

| Name             |     | Aggregate          
 Compensation       
 from the Fund      
 11/1/23 – 10/31/24 |       |     | Total              
 Compensation       
 from Calamos Funds 
 Complex (1)        
 11/1/23 – 10/31/24 |          |
|:-----------------|:----|:-------------------|------:|:----|:-------------------|---------:|
| John             
 P. Calamos, Sr.  |     | $                  |     0 |     | $                  |        0 |
| John             
 S. Koudounis (2) |     | $                  |     0 |     | $                  |        0 |
| Hugh             
 P. Armstrong (2) |     | $                  |     0 |     | $                  |        0 |
| Virginia         
 G. Breen         |     | $                  | 9,244 |     | $                  |  261,250 |
| John