BlackRock reports 6.3% stake in LB Pharmaceuticals

BlackRock, Inc. filed Amendment No. 1 reporting beneficial ownership of 1,796,543 shares of LB Pharmaceuticals Inc. common stock, representing 6.3% of the class as of June 30, 2026.

Rhea-AI Filing Summary

BlackRock, Inc. filed Amendment No. 1 reporting beneficial ownership of 1,796,543 shares of LB Pharmaceuticals Inc. common stock, representing 6.3% of the class as of June 30, 2026. BlackRock reports sole voting power over 1,771,160 shares and sole dispositive power over 1,796,543 shares, with no shared voting or dispositive power. Various underlying clients have rights to dividends or sale proceeds, but no individual client holds more than five percent of LB Pharmaceuticals’ outstanding common shares.

Key Figures

Beneficially owned shares: 1,796,543 shares Ownership percentage: 6.3% Sole voting power: 1,771,160 shares +3 more

6 metrics

Beneficially owned shares 1,796,543 shares LB Pharmaceuticals Inc. common stock beneficially owned by BlackRock as of June 30, 2026

Ownership percentage 6.3% Percent of LB Pharmaceuticals common stock class beneficially owned by BlackRock

Sole voting power 1,771,160 shares Shares of LB Pharmaceuticals over which BlackRock has sole power to vote or direct the vote

Sole dispositive power 1,796,543 shares Shares of LB Pharmaceuticals over which BlackRock has sole power to dispose or direct disposition

Form date 06/30/2026 Date as of which the beneficial ownership information is reported

Amendment number Amendment No. 1 This Schedule 13G filing is the first amendment to a prior report

Key Terms

Schedule 13G/A, beneficially owned, sole voting power, sole dispositive power, +1 more

5 terms

Schedule 13G/A regulatory

"BlackRock, Inc. filed Amendment No. 1 on Schedule 13G/A reporting beneficial ownership"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

beneficially owned financial

"this reflects the securities beneficially owned, or deemed to be beneficially owned, by certain business units"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

sole voting power financial

"Sole Voting Power 1,771,160.00"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

sole dispositive power financial

"Sole Dispositive Power 1,796,543.00"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

parent holding company regulatory

"Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What percentage of LB PHARMACEUTICALS INC (LBRX) shares does BlackRock currently report owning?

BlackRock reports beneficial ownership of 6.3% of LB Pharmaceuticals Inc. common stock. This corresponds to 1,796,543 shares as of June 30, 2026, making BlackRock a significant institutional holder above the five percent reporting threshold.

How many LBRX shares does BlackRock have sole voting power over?

BlackRock has sole voting power over 1,771,160 shares of LB Pharmaceuticals common stock. It reports no shared voting power, indicating voting authority resides exclusively with BlackRock’s reporting business units for these shares.

How many LB PHARMACEUTICALS INC shares does BlackRock beneficially own in total?

BlackRock beneficially owns 1,796,543 shares of LB Pharmaceuticals Inc. common stock. It also has sole dispositive power over all 1,796,543 shares, with no shared dispositive power reported in this Schedule 13G/A amendment.

Do any BlackRock clients hold more than 5% of LBRX through this stake?

No individual client holds more than five percent of LB Pharmaceuticals’ outstanding common shares. BlackRock states that various persons have rights to dividends or sale proceeds, but none exceed the five percent threshold individually.

What type of filing did BlackRock submit for its LBRX position?

BlackRock submitted an amended Schedule 13G/A (Amendment No. 1) for its LB Pharmaceuticals position. This passive ownership report covers 1,796,543 shares, or 6.3% of the company’s common stock, as of June 30, 2026.

Where is BlackRock’s principal business office for this LBRX 13G/A filing?

BlackRock’s principal business office for this filing is 50 Hudson Yards, New York, NY 10001. LB Pharmaceuticals’ principal executive offices are listed as One Pennsylvania Plaza, Suite 1025, New York, NY 10119 in the same report.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 07/29/2026 - 03:21 PM Accepted by SEC EDGAR 07/29/2026 - 03:19 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

LB PHARMACEUTICALS INC

(Name of Issuer)

Common Stock

(Title of Class of Securities)

50180M108

(CUSIP Number)

06/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 50180M108

1

Names of Reporting Persons

BlackRock, Inc.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 1,771,160.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 1,796,543.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,796,543.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.3 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: LB PHARMACEUTICALS INC
(b)	Address of issuer's principal executive offices: One Pennsylvania Plaza, Suite 1025 NEW YORK NY 10119
Item 2.
(a)	Name of person filing: BlackRock, Inc. In accordance with SEC Release No. 34-39538 (January 12, 1998), this Schedule 13G reflects the securities beneficially owned, or deemed to be beneficially owned, by certain business units (collectively, the "Reporting Business Units") of BlackRock, Inc. and its subsidiaries and affiliates. It does not include securities, if any, beneficially owned by other business units whose beneficial ownership of securities are disaggregated from that of the Reporting Business Units in accordance with such release.
(b)	Address or principal business office or, if none, residence: BlackRock, Inc., 50 Hudson Yards New York, NY 10001
(c)	Citizenship: See Item 4 of Cover Page
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 50180M108
Item 4.	Ownership
(a)	Amount beneficially owned: 1796543
(b)	Percent of class: 6.3 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 1771160
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 1796543
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. Various persons have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of the common stock of LB PHARMACEUTICALS INC. No one person's interest in the common stock of LB PHARMACEUTICALS INC is more than five percent of the total outstanding common shares.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See Exhibit 99
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

BlackRock, Inc.

Signature:	Spencer Fleming
Name/Title:	Managing Director
Date:	07/29/2026

Exhibit Information

Exhibit 24: Power of Attorney Exhibit 99: Item 7