Company: RPTX
Filing Date: 2025-11-17
Form Type: DEFA14A
Source: 0001193125-25-284040
Chunk: 169

Company: Repare Therapeutics Inc.
Filing Date: 2025-11-17
Form: DEFA14A
Chunk 169
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 The parties hereby confirm their express wish that this Agreement and all ancillary and related documents                                                                                              
 thereto be drafted in the English language. Les parties aux présentes confirment leur volonté expresse que la présente entente et tous les documents qui y sont accessoires soient rédigés en anglais. |

[Remainder of page left intentionally blank. Signature page follows.]

Yours truly,

| By: |     |                     |
|     |     | -Signature          |
|     |     | -Print Name         |
|     |     | -Place of Residency |
|     |     | -Name and Title     |
|     |     | Address:            |

Quantity and type of Subject Securities owned (beneficially or otherwise) as of the date hereof:

| Shares:  |
| Options: |
| RSUs:    |

Accepted and agreed on this _____ day of __________________, 2025.

| XENO ACQUISITION CORP. |     |        |
| By:                    |     |        |
|                        |     | Name:  |
|                        |     | Title: |