| Date | Time | Source | Headline | Symbol | Company |
| 02/02/2023 | 10:38AM | Edgar (US Regulatory) | Initial Statement of Beneficial Ownership (3) | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 02/01/2023 | 4:25PM | PR Newswire (US) | Calamos Investments Closed-End Funds (NASDAQ: CHI, CHY, CSQ, CGO, CHW, CCD and CPZ) Announce Monthly Distributions and Required Notifications of Sources of Distribution | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 01/17/2023 | 1:09PM | Edgar (US Regulatory) | Annual Report for Registered Investment Companies (n-cen) | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 12/19/2022 | 4:05PM | PR Newswire (US) | Calamos Investments Closed-End Funds (NASDAQ: CHI, CHY, CSQ, CGO, CHW, CCD and CPZ) Announce Monthly Distributions and Required Notifications of Sources of Distribution | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 12/01/2022 | 4:05PM | PR Newswire (US) | Calamos Investments Closed-End Funds (NASDAQ: CHI, CHY, CSQ, CGO, CHW, CCD and CPZ) Announce Monthly Distributions and Required Notifications of Sources of Distribution | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 11/01/2022 | 4:05PM | PR Newswire (US) | Calamos Investments Closed-End Funds (NASDAQ: CHI, CHY, CSQ, CGO, CHW, CCD and CPZ) Announce Monthly Distributions and Required Notifications of Sources of Distribution | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 10/03/2022 | 4:05PM | PR Newswire (US) | Calamos Investments Closed-End Funds (NASDAQ: CHI, CHY, CSQ, CGO, CHW, CCD and CPZ) Announce Monthly Distributions and Required Notifications of Sources of Distribution | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 10/03/2022 | 7:16AM | Edgar (US Regulatory) | Prospectus Filed Pursuant to Rule 424(b)(3) (424b3) | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 09/01/2022 | 4:05PM | PR Newswire (US) | Calamos Investments Closed-End Funds (NASDAQ: CHI, CHY, CSQ, CGO, CHW, CCD and CPZ) Announce Monthly Distributions and Required Notifications of Sources of Distribution | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 08/22/2022 | 5:04PM | Edgar (US Regulatory) | Annual Report of Proxy Voting Record for Management Investment Companies (n-px) | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 08/01/2022 | 4:05PM | PR Newswire (US) | Calamos Investments Closed-End Funds (NASDAQ: CHI, CHY, CSQ, CGO, CHW, CCD and CPZ) Announce Monthly Distributions and Required Notifications of Sources of Distribution | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 07/01/2022 | 4:05PM | PR Newswire (US) | Calamos Investments Closed-End Funds (NASDAQ: CHI, CHY, CSQ, CGO, CHW, CCD and CPZ) Announce Monthly Distributions and Required Notifications of Sources of Distribution | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 06/24/2022 | 4:29PM | Edgar (US Regulatory) | Certified Semi-annual Shareholder Report for Management Investment Companies (n-csrs) | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 06/10/2022 | 4:17PM | Edgar (US Regulatory) | Statement of Ownership (sc 13g) | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 06/10/2022 | 4:16PM | Edgar (US Regulatory) | Statement of Ownership (sc 13g) | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 06/02/2022 | 6:02AM | Edgar (US Regulatory) | Prospectus Filed Pursuant to Rule 424(b)(3) (424b3) | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 06/01/2022 | 4:05PM | PR Newswire (US) | Calamos Investments Closed-End Funds (NASDAQ: CHI, CHY, CSQ, CGO, CHW, CCD and CPZ) Announce Monthly Distributions and Required Notifications of Sources of Distribution | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 05/26/2022 | 6:41PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 05/26/2022 | 6:19PM | Edgar (US Regulatory) | Initial Statement of Beneficial Ownership (3) | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 05/11/2022 | 3:10PM | Edgar (US Regulatory) | Proxy Statement (definitive) (def 14a) | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 05/02/2022 | 4:05PM | PR Newswire (US) | Calamos Investments Closed-End Funds (NASDAQ: CHI, CHY, CSQ, CGO, CHW, CCD and CPZ) Announce Monthly Distributions and Required Notifications of Sources of Distribution | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 04/01/2022 | 4:05PM | PR Newswire (US) | Calamos Investments Closed-End Funds (NASDAQ: CHI, CHY, CSQ, CGO, CHW, CCD and CPZ) Announce Monthly Distributions and Required Notifications of Sources of Distribution | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 03/03/2022 | 5:14PM | Edgar (US Regulatory) | Prospectus Filed Pursuant to Rule 424(b)(5) (424b5) | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 03/01/2022 | 4:05PM | PR Newswire (US) | Calamos Investments Closed-End Funds (NASDAQ: CHI, CHY, CSQ, CGO, CHW, CCD and CPZ) Announce Monthly Distributions and Required Notifications of Sources of Distribution | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 02/24/2022 | 4:43PM | Edgar (US Regulatory) | Automatic Shelf Registration Statement on Form N-2 for Well-known Seasoned Issuers (n-2asr) | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 02/01/2022 | 4:05PM | PR Newswire (US) | Calamos Investments Closed-End Funds (NASDAQ: CHI, CHY, CSQ, CGO, CHW, CCD and CPZ) Announce Monthly Distributions and Required Notifications of Sources of Distribution | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 01/03/2022 | 8:13AM | Edgar (US Regulatory) | Prospectus Filed Pursuant to Rule 424(b)(3) (424b3) | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 12/29/2021 | 10:27AM | Edgar (US Regulatory) | Certified Annual Shareholder Report for Management Investment Companies (n-csr) | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 12/23/2021 | 10:09AM | Edgar (US Regulatory) | Monthly Portfolio Investments Report on Form N-port (public) (nport-p) | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |
| 12/20/2021 | 5:23PM | Edgar (US Regulatory) | Prospectus Filed Pursuant to Rule 424(b)(3) (424b3) | NASDAQ:CHI | Calamos Convertible Opportunities and Income Fund |