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LB PHARMACEUTICALS INC

For the period ended Jun 3, 2026. Filed Apr 23, 2026.

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What shareholders are asked to vote on at a company's meeting. It is where to find what directors and top executives are paid, and who owns the most shares.

Jun 3, 2026 · Filed Apr 23, 2026

LBRX$42.01+10.3%Stored close · as of Nov 6, 2026
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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No. )

Filed by the Registrant ☒

Filed by a party other than the Registrant ☐

Check the appropriate box:

☐Preliminary Proxy Statement
☐Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
☒Definitive Proxy Statement
☐Definitive Additional Materials
☐Soliciting Material under § 240.14a-12

LB PHARMACEUTICALS INC

(Name of Registrant as Specified in Its Charter)

(Name of Person(s) Filing Proxy Statement if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

☒No fee required
☐Fee paid previously with preliminary materials
☐Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11

LB Pharmaceuticals Inc

One Pennsylvania Plaza, Suite 1025

New York, NY 10119

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

To Be Held on June 3, 2026 at 9:30 a.m. Eastern Time

Dear Stockholder:

You are cordially invited to attend the Annual Meeting of Stockholders (the “Annual Meeting”) of LB Pharmaceuticals Inc, a Delaware corporation (the “Company”). The meeting will be held on Wednesday, June 3, 2026 at 9:30 a.m. Eastern Time. The Annual Meeting will be a virtual meeting of stockholders, which will be conducted only via a live audio webcast. You will be able to attend the Annual Meeting, submit your questions and vote online during the meeting by visiting www.virtualshareholdermeeting.com/LBRX2026. A complete list of record stockholders will be available at our corporate headquarters, located at One Pennsylvania Plaza, Suite 1025, New York, NY 10119, upon request by emailing IR@lbpharma.us, for examination by any stockholder for any purpose germane to the Annual Meeting for a period of ten days ending on the day before the Annual Meeting date. The meeting will be held for the following purposes:

1.To elect three (3) nominees for Class I directors, Robert A. Lenz, M.D., Ph.D., Rebecca Luse and Ran Nussbaum, each to hold office until the 2029 Annual Meeting of Stockholders and until their successors are duly elected and qualified, or until their earlier death, resignation or removal.
2.To ratify the appointment by the Audit Committee of the Board of Directors of BDO USA, P.C. as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026.
3.To conduct any other business properly brought before the Annual Meeting or any adjournment or postponement thereof.

These items of business are more fully described in the Proxy Statement accompanying this Notice.

The Annual Meeting will be held virtually through a live webcast. Stockholders of record at the close of business on April 7, 2026 and their proxy holders will be able to attend the Annual Meeting, submit questions and vote during the live webcast by visiting www.virtualshareholdermeeting.com/LBRX2026 and entering the 16-digit Control Number included in your Notice of Internet Availability or in the instructions that you received via email. Please refer to the additional logistical details and recommendations in the accompanying Proxy Statement.

Only stockholders of record at the close of business on April 7, 2026 and their proxy holders may vote at the Annual Meeting or any adjournment or postponement thereof.

By Order of the Board of Directors

/s/ Heather Turner

Heather Turner

President and Chief Executive Officer

New York

April 23, 2026

Important Notice Regarding the Availability of Proxy Materials for the Stockholders’ Meeting to Be Held on Wednesday, June 3, 2026 at 9:30 a.m. Eastern Time at www.virtualshareholdermeeting.com/LBRX2026.

The proxy statement and annual report to stockholders are available at

www.virtualshareholdermeeting.com/LBRX2026 and www.proxyvote.com.

You are cordially invited to attend the meeting online. Whether or not you expect to attend the meeting, please vote over the telephone or the internet as instructed in these materials, or, if you receive a paper proxy card by mail, by completing and returning the proxy mailed to you, as promptly as possible in order to ensure your representation at the meeting. Even if you have voted by proxy, you may still vote online if you attend the meeting.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.