Company: RPTX
Filing Date: 2025-12-03
Form Type: PREM14A
Source: 0001193125-25-306948
Chunk: 93

Company: Repare Therapeutics Inc.
Filing Date: 2025-12-03
Form: PREM14A
Chunk 93
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 a CVR, such non-U.S.Holder may be subject to withholding at a rate of 30% (or a lower rate under an applicable income tax treaty) of the portion of any such payments treated as imputed interest (as discussed above), unless such non-U.S.Holder establishes its entitlement to exemption from or a reduced rate of withholding under an applicable tax treaty by providing the appropriate documentation (generally, IRS Form W-8BENor W-8BEN-Eor other applicable IRS Form W-8)to the applicable withholding agents. In addition, a payment to a non-U.S.Holder with respect to a CVR may be subject to U.S. backup withholding and FATCA withholding, each as discussed below. Non-U.S.Holders are urged to consult their tax advisors to determine the U.S. federal, state, local and other tax considerations that may be relevant to them in light of their particular circumstances and as to any applicable tax treaties that might provide for different rules. There is no assurance that the IRS will agree with our conclusion that the Distribution will be treated as described above. If the Distribution is treated as an ordinary distribution from the Company to Shareholders, U.S. Holders may be subject to tax consequences different than discussed herein, including significant adverse tax consequences to the extent that the Company is classified as a PFIC for the taxable year that includes the Distribution or a prior year in which the U.S. Holder held Common Shares in the Company. Such adverse tax consequences could include a U.S. Holder recognizing income with respect to the full amount of the Distribution 54

received (without reference to the U.S. Holder’s adjusted basis in its Common Shares or the current and accumulated earnings and profits of the Company), and any such income being taxed as
ordinary income, and an additional interest charge applying with respect to a portion of the tax due thereon (as further described in the discussion below under “Passive Foreign Investment Company Considerations).

Information Reporting and Backup Withholding

Payments made to holders in exchange for Common Shares pursuant to the Arrangement may be subject, under certain circumstances, to information
reporting and backup withholding (currently at a rate of 24%). To avoid backup withholding, a U.S. Holder that does not otherwise establish an exemption should complete and return IRS Form W-9,
certifying that such U.S. Holder is a U.S. person, the taxpayer identification number (generally, an employer identification number or social security number) provided is correct and such U.S