BlackRock Portfolio Management LLC
Holdings History for Calamos Convertible Opportunities and Income Fund - Series H Mandatory Redeemable Preferred Shares
- Latest disclosed shares
- 345,000 shares
- Security ownership percentage
- 50%
- Investment type
- Equity / Series H Mandatory Redeemable Preferred Shares
BlackRock Portfolio Management LLC ownership in Calamos Convertible Opportunities and Income Fund Series H Mandatory Redeemable Preferred Shares
On 08 Sep 2026, BlackRock Portfolio Management LLC filed SCHEDULE 13G with the Securities and Exchange Commission (SEC), disclosing ownership of 345,000 shares of Calamos Convertible Opportunities and Income Fund Series H Mandatory Redeemable Preferred Shares.
This represents 50% ownership of the company.
This appears to be the first parsed Schedule 13D/G filing by BlackRock Portfolio Management LLC disclosing ownership of Calamos Convertible Opportunities and Income Fund Series H Mandatory Redeemable Preferred Shares.
Schedule rows show beneficial ownership disclosures and amendments for this filer/security pair. Use the SEC filing link to verify source details.
| Reporting owner | Ownership | Ownership change | SEC-reported value | Shares | Share change | Share activity | Price | Form | Report date | SEC filing |
|---|---|---|---|---|---|---|---|---|---|---|
| BlackRock Portfolio Management LLC | 50% | 345,000 | 13G | 31 Aug 2026 | 08 Sep 2026, 16:30 |