Siren Biotechnology filed an Intent-to-Use trademark application with USPTO for its stylized company name covering Class 5 pharmaceutical preparations for gene therapy targeting cancer treatment, as well as research and development services in the pharmaceutical and biotechnology fields. The application (TM99737013) was filed on March 31, 2026.

Trademark applicants and competitors in the gene therapy and oncology pharmaceutical space should review the application to identify potential conflicts with existing marks. No immediate compliance actions are required from most regulated entities. This filing does not create new regulatory obligations but serves as public notice of Siren Biotechnology's intent to use this mark.