Company: PTY
Filing Date: 2025-09-25
Form Type: 40-17G
Source: 0001193125-25-217116
Chunk: 46

Company: PIMCO CORPORATE & INCOME OPPORTUNITY FUND
Filing Date: 2025-09-25
Form: 40-17G
Chunk 46
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 or policy numbers: |
|        |     | Not Applicable                                                                                                                              |

|        |     | such cancellation or termination to be effective as of the time this bond becomes effective. |
| ITEM 8 |     | FORMS AND ENDORSEMENTS ATTACHED AT ISSUANCE:                                                 |
|        |     | XSB-3001-0112; XSB-19001-0315                                                                |

| XSB-2001 Ed. 01-12                                           |     | Page 2 of 3 |
| © 2012 The Travelers Indemnity Company. All rights reserved. |     |             |

PRODUCER INFORMATION: AON RISK SERVICES NE INC 53 STATE ST 22ND FL BOSTON, MA 02109

| Countersigned By |

IN WITNESS WHEREOF, the Company has caused this policy/bond to be signed by its authorized officers.

| President |     | Corporate Secretary |

| XSB-2001 Ed. 01-12                                           |     | Page 3 of 3 |
| © 2012 The Travelers Indemnity Company. All rights reserved. |     |             |

| Excess Bond 
 Coverage    |

INSURING AGREEMENT IN CONSIDERATIONof the payment of an agreed premium, and in reliance upon completeness and accuracy of the statements and disclosures made to the Company and any issuer of Underlying Insurance by application, including all attachments, subject to the Declarations, Insuring Agreements, Terms, Conditions And Limitations, and Endorsements of this Excess Bond Coverage, this Excess Bond Coverage is subject to the same Insuring Agreements, Terms, Conditions And Limitations, and Endorsements as provided by the Bond or Policy identified in ITEM 6 of the Declarations of this Excess Bond Coverage. In no event shall this Excess Bond Coverage provide broader coverage than would be provided by the most restrictive Underlying Insurance. This Excess Bond Coverage is not subject to the same premium or the Limit of Insurance of the Bond or Policy identified in ITEM 6 of the Declarations. TERMS, CONDITIONS AND LIMITATIONS

| SECTION 1. | UNDERLYING COVERAGE |

| A. | The Insured(s) shall notify the Company in writing, as soon as practicable, of a failure to maintain in full force and                    
 effect, without alteration, the coverage and provisions of the Bond(s) or Policy(ies) identified in ITEM 5 A. and B.