8-K current report · filed Jun 15, 2026

Inhibrx Biosciences, Inc. (INBX) 8-K Current Report: June 15, 2026

Item 7.01Item 8.01Item EX-99.1INBX overview

Short answer

Inhibrx Biosciences, Inc. (INBX) filed an 8-K current report with the SEC on June 15, 2026 reporting Item 7.01 (Regulation FD Disclosure), Item 8.01 (Other Events), Item EX-99.1 (Exhibit EX-99.1). FDA accepted ozekibart BLA for unresectable or metastatic conventional chondrosarcoma.

Inhibrx Biosciences, Inc. 8-K event analysis

AI summary of each reported item and its exhibits

Item 7.01 · Regulation FD Disclosure

  • FDA accepted ozekibart BLA for unresectable or metastatic conventional chondrosarcoma
  • No filing review issues identified, reducing near-term regulatory uncertainty
  • PDUFA decision target set for April 14, 2027
  • Potential approval milestone for INBRX-109 and validation of Inhibrx’s oncology pipeline

Item 8.01 · Other Events

  • FDA accepted Inhibrx’s ozekibart BLA for unresectable or metastatic conventional chondrosarcoma
  • No filing review issues identified, reducing near-term regulatory uncertainty
  • PDUFA decision target set for April 14, 2027
  • Regulatory milestone advances ozekibart toward potential commercialization in a serious cancer indication

Item EX-99.1 · Exhibit EX-99.1

  • FDA accepted ozekibart’s BLA without filing review issues, setting an April 14, 2027 PDUFA decision date
  • Registrational trial showed 52% lower progression-or-death risk, with median PFS 5.52 months versus 2.66 months for placebo
  • Disease control rate reached 54% versus 27.5%, supporting potential approval in a disease with no approved systemic therapy
  • Ozekibart could become Inhibrx’s first commercial product and the first FDA-approved systemic treatment for advanced chondrosarcoma
  • Hepatic adverse events occurred in 11.8% versus 4.5% for placebo, highlighting a key approval and commercialization risk

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