Company: SMNR
Filing Date: 2025-08-13
Form Type: 424B3
Source: 0001193125-25-179226
Chunk: 435

Company: Semnur Pharmaceuticals, Inc.
Filing Date: 2025-08-13
Form: 424B3
Chunk 435
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.S. Holder) generally are not subject to such withholding tax, provided certain certification and disclosure requirements are satisfied (generally by providing an IRS Form W–8ECI). Instead, such dividends generally are subject to United States federal income tax on a net income basis in the same manner as if the Non–U.S. Holder were a United States person as defined under the Code. Any such effectively connected dividends received by a foreign corporation may be subject to an additional “branch profits tax” at a 30% rate or such lower rate as may be specified by an applicable income tax treaty. A Non–U.S. Holder of New Semnur Common Stock who wishes to claim the benefit of an applicable treaty rate and avoid backup withholding, as discussed below, for dividends generally will be required (a) to complete the applicable IRS Form W–8 and certify under penalty of perjury that such holder is not a United States person as defined under the Code and is eligible for treaty benefits or (b) if the shares of New Semnur Common Stock are held through certain foreign intermediaries, to satisfy the relevant certification requirements of applicable United States Treasury regulations. Special certification and other requirements apply to certain Non–U.S. Holders that are pass–through entities rather than corporations or individuals. A Non–U.S. Holder of New Semnur Common Stock eligible for a reduced rate of U.S. withholding tax pursuant to an income tax treaty may obtain a refund of any excess amounts withheld by timely filing an appropriate claim for refund with the IRS. Non–U.S. Holders are urged to consult their own tax advisors regarding their entitlement to the benefits under any applicable income tax treaty. Sale, Exchange, or Other Taxable Disposition of New Semnur Common Stock Subject to the discussion of backup withholding and FATCA (as defined below), any gain realized by a Non–U.S. Holder on the taxable disposition of New Semnur Common Stock, including on a redemption that is treated as a sale or exchange under Section 302 of the Code, generally will not be subject to U.S. federal income tax unless:

| • |     | the gain is effectively connected with a trade or business of the Non–U.S. Holder in the United States                                                  
 (and, if required by an applicable income tax treaty, is attributable to a United States permanent establishment or fixed base of the Non–U.S. Holder); |

| • |     | the Non–U.S. Holder is an individual who is present in the United