X0306 4 2019-07-01 0 0001602584 Calamos Dynamic Convertible & Income Fund CCD 0001248580 CALAMOS JOHN P SR 2020 CALAMOS COURT NAPERVILLE IL 60563 1 1 0 0 President and Chairman 0001316507 Calamos Advisors LLC 2020 CALAMOS COURT NAPERVILLE IL 60563 0 0 0 1 Investment Adviser Common Stock 2019-07-01 4 J 0 77581.1531 A 1113376 I By Calamos Family Partners, Inc. Common Stock 0.9479 I By Calamos Advisors LLC On July 1, 2019, an aggregate 1,113,376 shares of the Issuer (the "Shares") which the Reporting Person previously reported as indirectly beneficially owned through Calamos Advisors LLC ("CAL") were distributed from CAL to CAL's parent, Calamos Investments LLC ("CILLC") and, ultimately, to Calamos Family Partners, Inc. ("CFP"), of which John P. Calamos, Sr. owns a controlling interest. The distribution of the Shares to CFP resulted in an increase in the Reporting Person's pecuniary interest in the Shares now held by CFP, which the Reporting Person reports in the aggregate. The Reporting Person disclaims beneficial ownership of the Shares except to the extent of his pecuniary interest therein. Total includes 36,984.358 common shares received as a result of monthly dividend reinvestments. The average price of dividend reinvestment shares was $17.45. /s/ John P. Calamos, Sr. 2019-07-03