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PUMA BIOTECHNOLOGY INC (PBYI)

Health Care · Oncology biotech - HER2-targeted breast cancer therapeutics · NASDAQ

Biopharmaceutical company commercializing NERLYNX (neratinib), an irreversible HER2 tyrosine kinase inhibitor for HER2-positive breast cancer, and developing alisertib for multiple cancer indications.

What PUMA BIOTECHNOLOGY INC does

Puma Biotechnology is a biopharmaceutical company that develops and commercializes innovative products for cancer care. The company commercially markets NERLYNX (neratinib), an oral tyrosine kinase inhibitor approved for extended adjuvant treatment of early-stage HER2-positive breast cancer and for combination use in advanced/metastatic HER2-positive breast cancer. The company has in-licensed alisertib, an Aurora Kinase A inhibitor, and is pursuing global development and commercialization across multiple cancer indications including small cell lung cancer and hormone receptor-positive breast cancer.

Themes: ["HER2-positive breast cancer","Early-stage breast cancer (adjuvant treatment)","Metastatic breast cancer","Aurora Kinase A inhibition","Small cell lung cancer","Hormone receptor-positive breast cancer"]

Fundamentals

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Key risks (from latest filing)

["Revenue declining year-over-year (-2.38% YoY) despite profitability, indicating competitive pressure or market saturation in core breast cancer indications","Significant R&D spending increase (Q1 2026: $19.8M vs Q1 2025: $13.9M) to support alisertib development across multiple cancer types, creating cash burn risk","Dependency on NERLYNX commercialization and alisertib development success; competition from established HER2-targeting therapies (trastuzumab, pertuzumab, T-DM1, fam-trastuzumab deruxtecan, tucatinib)"]

See PBYI's biggest risks from its latest 10-Q →

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Fundamentals: Finnhub, as of 2026-07-10. Filings: SEC EDGAR. Prices are delayed daily-close data.

Last updated 2026-07-09.

Informational only — NOT financial advice. All figures are delayed daily-close data from SEC EDGAR & Finnhub, shown with their as-of date.