# EDGAR Filing Document

**Accession Number:** 0001691082
**File Stem:** 0001193125-26-263724
**Filing Date:** 2026-6
**Character Count:** 5595
**Document Hash:** 8b53dcf7fb34acd4ac32f3b8e369e4d3
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-263724.hdr.sgml**: 20260609

**ACCESSION NUMBER**: 0001193125-26-263724

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 11

**CONFORMED PERIOD OF REPORT**: 20260603

**ITEM INFORMATION**: Submission of Matters to a Vote of Security Holders

**FILED AS OF DATE**: 20260609

**DATE AS OF CHANGE**: 20260609

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** LB PHARMACEUTICALS INC
- **CENTRAL INDEX KEY:** 0001691082
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42831
- **FILM NUMBER:** 261076079

**BUSINESS ADDRESS:**
- **STREET 1:** 575 MADISON AVENUE
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
- **BUSINESS PHONE:** 917-450-6581

**MAIL ADDRESS:**
- **STREET 1:** 575 MADISON AVENUE
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** LB PHARMACEUTICALS INC.
- **DATE OF NAME CHANGE:** 20161129

?xml version='1.0' encoding='ASCII'? 8-K

### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

### FORM 8-K

#### CURRENT REPORT

#### Pursuant to Section 13 or 15(d)

#### of the Securities Exchange Act of 1934

#### Date of Report (Date of earliest event reported): June 3, 2026

## LB Pharmaceuticals Inc

#### (Exact name of registrant as specified in its charter)

---

| | | |
|:---|:---|:---|
| **Delaware** | **001-42831** | **81-1854347** |
| **(state or other jurisdiction**<br> **of incorporation)** | **(Commission**<br> **File Number)** | **(I.R.S. Employer**<br> **Identification No.)** |

---

---

| | |
|:---|:---|
| **One Pennsylvania Plaza, Suite 1025**<br> **New York, NY** | **10119** |
| **(Address of principal executive offices)** | **(Zip Code)** |

---

#### Registrant's telephone number, including area code: (212) 605-0300

#### Not applicable

#### (Former name or former address, if changed since last report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

---

| | | |
|:---|:---|:---|
| **Title of each class** | **Trading**<br> **Symbol** | **Name of each exchange**<br> **on which registered** |
| Common Stock, $0.0001 par value per share | LBRX | The Nasdaq Stock Market LLC |

---

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

------

#### Item 5.07. Submission of Matters to a Vote of Security Holders.
LB Pharmaceuticals Inc (the "Company") held its 2026 Annual Meeting of Stockholders (the "Annual Meeting") on June 3, 2026, at which a quorum was present. The final results for each of the proposals submitted to a vote of the Company's stockholders at the Annual Meeting are set forth below. These proposals are described in the Company's definitive proxy statement filed with the Securities and Exchange Commission on April 23, 2026.

#### Proposal 1 – Election of Directors
The Company's stockholders elected the three persons listed below as Class I directors, each to serve a three-year term until the Company's 2029 Annual Meeting of Stockholders and until their successors are duly elected and qualified, or until their earlier death, resignation or removal. The final voting results were as follows:

---

| | | | |
|:---|:---|:---|:---|
|  | **For** | **Withheld** | **Broker Non-Votes** |
|  Robert A. Lenz, M.D., Ph.D. | 20059577 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8,004 | 3216636 |
|  Rebecca Luse | 18530680 | 1536901 | 3216636 |
|  Ran Nussbaum | 18748511 | 1319070 | 3216636 |

---

#### Proposal 2 – Ratification of the Appointment of Independent Registered Public Accounting Firm
The Company's stockholders ratified the appointment of BDO USA, P.C. as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2026. The final voting results were as follows:

---

| | | | |
|:---|:---|:---|:---|
| **For** | **Against** | **Abstain** | **Broker Non-Votes** |
| 23,275,974 | 5,490 | 2,753 |  |

---

------

#### SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

---

| | |
|:---|:---|
| **LB PHARMACEUTICALS INC** | **LB PHARMACEUTICALS INC** |
| By: | /s/ Heather Turner |
|  | Heather Turner<br> Chief Executive Officer |

---

Dated: June 9, 2026