Company: PTY
Filing Date: 2025-09-25
Form Type: 40-17G
Source: 0001193125-25-217116
Chunk: 42

Company: PIMCO CORPORATE & INCOME OPPORTUNITY FUND
Filing Date: 2025-09-25
Form: 40-17G
Chunk 42
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 OFAC. When an insurance policy is considered to be such a blocked or frozen contract, no payments nor premium refunds may be made without authorization from OFAC. Other limitations on the premiums and payments also apply.

| IL P 001 01 04 |     | © ISO Properties, Inc., 2004 |     | Page 1 of 1 |

RIDER 1 To be attached to and form part of Financial Institution Bond, Excess Follow Form, No. 626-041080-9in favor of PIMCO Funds

| Newport Beach, CA |

NON-FOLLOWFORM EXCESS ENDORESMENT It is agreed that: In no event does this policy follow the terms and conditions of, or provide any coverage provided by, the following coverage sections of the policy listed in Item (G) of the Declarations of this policy: Coverage Section Endorsement 5 – Fraudulent Transfer Instruction Endorsement ALL OTHER TERMS AND CONDITIONS REMAIN UNCHANGED.

### ELECTRONIC SIGNATURE PAGE
The purpose of the electronic signature is to assure you and us that the attached policy has not been altered since we issued it. Once the signature is affixed, any change invalidates the signature.

The origin of the signature, itself, can be verified by use of the appropriate public key encryption file. You can either request that file from the underwriter or, once you are satisfied as to the source of this document, you can import the electronic identity directly into your pdf reader from this file.

125 Broad Street, New York, NY 10004 August 6, 2025 Cara A. LaTorre Senior Vice President AON RISK SERVICES NORTHEAST, INC. 165 BROADWAY STE 3201 ONE LIBERTY PLAZA NEW YORK, NY 10006-1404

| Re: | PIMCO Funds |

Mutual Fund Bond Policy Number 267860356 Expiration Date: 07/01/2026 Dear Ms. LaTorre, We are pleased to enclose Policy Number 267860356 for PIMCO Funds. We trust that this policy meets with the specifications outlined in our quotation (number 6348690801). Please review it carefully to confirm this. Should you detect any problem, please contact me as soon as possible. If commissions or other compensation are payable hereunder, Insurance Producer will comply with all applicable federal and state laws, rules, regulations and/or orders governing disclosure by an agent, broker or producer to an insured or prospective insured