Company: LBRX
Filing Date: 2025-07-23
Form Type: DRS/A
Source: 0000950123-25-006557
Chunk: 311

Company: LB PHARMACEUTICALS INC
Filing Date: 2025-07-23
Form: DRS/A
Chunk 311
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 a majority of holders of registrable securities to be
registered, unless holders of a majority of the registrable securities agree to forfeit their right to one demand registration.

The
investors’ rights agreement contains customary cross-indemnification provisions, pursuant to which we are obligated to indemnify the selling stockholders in the event of material misstatements or omissions in the applicable registration
statement attributable to us, and the selling stockholders are obligated to indemnify us for material misstatements or omissions in the registration statement attributable to them, subject to certain limitations.

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Anti-Takeover Effects of Provisions of Our Amended and Restated Certificate of Incorporation, Our Amended and Restated Bylaws, and Delaware Law Section 203 of the Delaware General Corporation Law We are subject to Section 203 of the DGCL. Section 203 generally prohibits a public Delaware corporation from engaging in a “business combination” with an “interested stockholder” for a period of three years following the time that such stockholder became an interested stockholder, unless:

| • |     | prior to such time the board of directors of the corporation approved either the business combination or the 
 transaction which resulted in the stockholder becoming an interested stockholder;                            |

| • |     | upon consummation of the transaction which resulted in the stockholder becoming an interested stockholder, the                                                                                                                                            
 interested stockholder owned at least 85% of the voting stock of the corporation outstanding at the time the transaction commenced, excluding for purposes of determining the voting stock outstanding (but not the outstanding voting stock owned by the 
 interested stockholder) those shares owned (1) by persons who are directors and also officers and (2) employee stock plans in which employee participants do not have the right to determine confidentially whether shares held subject to the            
 plan will be tendered in a tender or exchange offer; or                                                                                                                                                                                                   |

| • |     | at or subsequent to such time, the business combination is approved by the board of directors and authorized at                                                                                         
 an annual or special meeting of stockholders, and not by written consent, by the affirmative vote of at least 66 2/3% of the outstanding voting stock which is not owned by the interested stockholder. |

Section 203 defines a business combination to include:

| • |     | any merger or consolidation involving the corporation or any direct or indirect majority-owned subsidiary of the 
 corporation and the interested stockholder;                                                                      |

| • |     | any sale, transfer, pledge or other