Company: LBRX
Filing Date: 2025-08-22
Form Type: S-1
Source: 0001193125-25-186467
Chunk: 326

Company: LB PHARMACEUTICALS INC
Filing Date: 2025-08-22
Form: S-1
Chunk 326
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 FEDERAL INCOME TAX CONSEQUENCES TO THEM OF ACQUIRING, OWNING AND DISPOSING OF OUR COMMON STOCK, AS WELL AS ANY TAX CONSEQUENCES ARISING UNDER ANY STATE, LOCAL OR NON-U.S.TAX LAWS AND ANY U.S. FEDERAL NON-INCOMETAX LAWS, OR UNDER ANY APPLICABLE INCOME TAX TREATY. Definition of Non-U.S.Holder For purposes of this discussion, a non-U.S.holder is any beneficial owner of our common stock that is neither a “U.S. holder” nor a partnership (including any entity or arrangement treated as a partnership or that is disregarded from its owner) for U.S. federal income tax purposes. A U.S. holder is any beneficial owner of our common stock that, for U.S. federal income tax purposes, is or is treated as any of the following:

| • |     | an individual who is a citizen or resident of the United States; |

| • |     | a corporation (or any entity treated as a corporation for U.S. federal income tax purposes) created or organized 
 in or under the laws of the United States, any state thereof or the District of Columbia;                        |

| • |     | an estate, the income of which is subject to U.S. federal income tax regardless of its source; or |

| • |     | a trust (i) whose administration is subject to the primary supervision of a U.S. court, and which has one or                                                                                                                 
 more “United States persons” (within the meaning of Section 7701(a)(30) of the Code) that have the authority to control all substantial decisions of the trust, or (ii) that has a valid election in effect under applicable 
 Treasury Regulations to be treated as a United States person.                                                                                                                                                                |

Distributions on Our Common Stock As discussed under the “Dividend Policy” section of this prospectus, we have never declared or paid any cash dividends on our common stock, and we do not intend to pay cash dividends on our common stock for the foreseeable future. However, if we make cash or other property distributions on our common stock (other than certain pro rata distributions of our stock), such distributions will constitute dividends for U.S. federal income tax purposes to the extent paid from our current or accumulated earnings and profits, as determined under U.S. federal income tax principles. Any portion of a distribution that exceeds our current and accumulated earnings and profits will constitute a return of capital and will first