SCHEDULE 13G Filing for CERUS CORPORATION

Soleus Capital Master Fund, L.P. and its related entities, including Soleus Capital, LLC, Soleus Capital Group, LLC, Soleus Capital Management, L.P., Soleus GP, LLC, and Guy Levy, have reported acquiring a 5.1% ownership stake in CERUS CORPORATION. This amounts to 9,828,700 shares, with a total value of $17,888,234.00. The acquisition occurred on March 23, 2026, and was reported on March 24, 2026. The filing, designated as a SCHEDULE 13G, indicates that the securities were not acquired for the purpose of influencing the control of the issuer. The reporting entities have entered into a joint filing agreement, with Guy Levy acting as the primary signatory for all involved parties. The ownership percentage is calculated based on 192,171,776 shares outstanding as of February 5, 2026.