# NOTICE OF OCCURRENCE OR CLAIM

| Named Insured | International Business Machines Corporation |
|---------------|-------------------------------------------|
| Endorsement Number | 017 |

| Policy Symbol | XEU |
|---------------|-----|
| Policy Number | G27983212 006 |
| Policy Period | 05/21/2021 to 05/21/2022 |
| Effective Date of Endorsement | 05/21/2021 |

Issued By (Name of Insurance Company) | ACE Property and Casualty Insurance Company |

**THIS ENDORSEMENT CHANGES THE POLICY. PLEASE READ IT CAREFULLY.**

This endorsement modifies insurance provided under the following:
ENHANCED COMMERCIAL UMBRELLA LIABILITY POLICY

The policy is amended as follows:

Section VI. CONDITIONS, Duties in the Event of "Occurrence", Claim or "Suit" is amended to add the following sub-paragraph:

Your failure to provide notice of an "occurrence" or claim to us shall not invalidate coverage under this policy if the "occurrence" or claim was inadvertently reported to another insurer. However, you shall report any such "occurrence" or claim to us within a reasonable time once you become aware of such error.

All other terms and conditions of this policy remain unchanged.

Authorized Representative

XSE-50748 (07/18)
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