Company: PTY
Filing Date: 2025-09-25
Form Type: 40-17G
Source: 0001193125-25-217116
Chunk: 70

Company: PIMCO CORPORATE & INCOME OPPORTUNITY FUND
Filing Date: 2025-09-25
Form: 40-17G
Chunk 70
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 BELOW APPLY TO AND ARE MADE PART OF THIS POLICY AT TIME OF ISSUE.

| ILF 0001 (04/22) |     | Signature Page                                                                |
| FICP 605 (03/23) |     | Amend Excess Policy - Non-Follow Form Endorsement                             |
| FI 628           |     | OFAC Rider                                                                    |
| FICP 604 (06/14) |     | Amend Excess Declarations Page - Add Additional Underlying Policy Information |
| SR 5862          |     | California Premium Rider                                                      |

ALL OTHER TERMS AND CONDITIONS OF THIS POLICY REMAIN UNCHANGED.

| RIL 2150 (08/08) |     | Page 1 of 1 |

THIS ENDORSEMENT CHANGES THE POLICY. PLEASE READ IT CAREFULLY. AMEND EXCESS POLICY – NON-FOLLOWFORM ENDORSEMENT To be attached to and form part of Policy No. BND0103383 issued by RLI Insurance Company in favor of PIMCO Funds. It is agreed that the following paragraph is added at the end of Section I. Insuring Agreement: This policy shall not afford coverage in accordance with the following coverages or endorsements of the policies identified in Item 3. Underlying Insuranceof the Declarations: Fraudulent Transfer Instruction Insuring Clause This endorsement shall become effective as of 12:01 a.m. on 07/01/2025. ALL OTHER TERMS AND CONDITIONS OF THIS POLICY REMAIN UNCHANGED. AMEND EXCESS POLICY – NON-FOLLOWFORM ENDORSEMENT For use with FICP 100 (08/08)

| FICP 605 (03/23) |     | Page 1 of 1 |

OFAC RIDER To be attached to and form part of Bond/Policy No. BND0103383 in favor of PIMCO Funds. It is agreed that: In consideration of the premium charged, it is hereby understood and agreed that payment of loss under this policy shall only be made in full compliance with all United States of America economic or trade sanction law or regulation, including, but not limited to, sanction laws and regulations administered and enforced by the U.S. Treasury Department’s Office of Foreign Assets Control (OFAC) All other terms, conditions and exclusions remain unchanged. This rider shall become effective as of 12:01 a.m. on 07/01/2025. OFAC RIDER FOR USE WITH ALL FINANCIAL