LB Pharmaceuticals Raises $285M in First Major Biotech IPO Since February

Friday, Sep 12, 2025 4:37 am ET1min read

LB Pharmaceuticals raised $285M in its initial public offering (IPO), marking the first significant biotech IPO since February. The company priced 19 million shares at $15 apiece and will trade on Nasdaq under the ticker symbol "LBRX." LB aims to advance its oral drug LB-102 for schizophrenia using the proceeds. The offering breaks a half-year drought for large biotech IPOs.

Argenx SE (NASDAQ: ARGX), a Dutch biotechnology company specializing in therapeutic antibodies, has shown strong growth in recent years, driven by its blockbuster drug Vyvgart. The company's focus on research and development (R&D) and its proprietary SIMPLE Antibody Platform have been key drivers of its success. Argenx's portfolio consists of seven pipeline drugs and one marketed drug, Vyvgart (efgartigimod alfa), with empasiprubart and ARGX-119 in phase 1-3 trials for various indications argenx: Bullish On This R&D Focused Biotech Stock[1].

Vyvgart, approved in 2021, generated revenues of $2.2 billion in 2024, up 84% from $1.2 billion in 2023. Sales rose from $21 million in Q1 2022 to $737 million in Q4 2024, displaying a 3-year CAGR of 134%. The market size for Vyvgart is forecasted to reach $5.5 billion by 2030, growing at a 13.6% CAGR, with some analysts expecting peak sales of up to $14 billion by 2035 argenx: Bullish On This R&D Focused Biotech Stock[1].

Empasiprubart, another antibody at the clinical stage, showed meaningful improvements in muscle strength and quality of life in phase 2 trials for multifocal motor neuropathy (MMN). The drug is now in late-stage trials for both MMN and chronic inflammatory demyelinating polyneuropathy (CIDP), with further readouts expected between 2025 and 2026. If successful, empasiprubart could become Argenx's second commercial product, diversifying revenues and positioning the company as a leader in autoimmune therapies argenx: Bullish On This R&D Focused Biotech Stock[1].

Argenx aims to spend at least 25% of revenue on R&D, achieving 45% in 2024, down from 72% in 2023. The company's R&D spend is largely treated as a high-risk expenditure, with $983 million expensed and $66.5 million capitalized as intangible assets in 2024. Argenx's Immunology Innovation Program (IIP) reduces upfront R&D costs and shares risk by partnering with leading academic immunologists argenx: Bullish On This R&D Focused Biotech Stock[1].

While Argenx's R&D-intensive growth strategy presents significant risks, such as competition in the autoimmune field and the loss of regulatory exclusivity for Vyvgart, the company's strong pipeline and commercial execution of Vyvgart offer compelling long-term prospects. Argenx ended 2024 with approximately $4.9 billion in current assets, providing several years of operational capacity and reducing dilution risk argenx: Bullish On This R&D Focused Biotech Stock[1].

Argenx's stock price has risen 34% in the last six months, driven by market recognition of its value and recent sponsorship of the US Open tennis tournament. The company has strong Seeking Alpha Factor Grades for Growth, Profitability, and Momentum, with a less favorable Valuation grade due to its high GAAP trailing P/E ratio argenx: Bullish On This R&D Focused Biotech Stock[1].

LB Pharmaceuticals Raises $285M in First Major Biotech IPO Since February

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