15. Subsequent Events

Corporate Rebrand

Effective August 3, 2026, the Company filed a Certificate of Amendment of the Amended and Restated Certificate of Incorporation with the Secretary of State of the State of Delaware to change the Company’s name from Plus Therapeutics, Inc. to Cerenome, Inc. In addition, on August 3, 2026, shares of the Company’s Common Stock began trading on The Nasdaq Capital Market under the symbol “CNSY”.

Houston Lease

On August 10, 2026, the Company entered into an amendment (the “Amendment”) to its lease (the “Lease”) with LG 1 Property Owner LP, pursuant to which the Company agreed to lease approximately 25,103 rentable square feet of additional space located at 6420 Levit Green Boulevard, Houston, Texas 77021 (the “Building”) such that, pursuant to the Lease as amended by the Amendment, the Company will rent a total of approximately 36,473 rentable square feet in the Building (the “Premises”).

The Amendment also provides for an increased monthly base rent of $188,443.83, which increases annually by approximately 3.0%, plus the Company's share of the Building’s direct expenses. Furthermore, the Amendment provides for a rent abatement (the “Rent Abatement”) for the first seven (7) months of the term of the Lease and a right of first offer, which gives the Company the one-time right to rent additional space on the same floor as the original Lease, subject to certain conditions, and an increase to the tenant improvement allowance for the design, permitting and construction of the Premises.

The Amendment changed the deemed commencement of the Lease from November 1, 2026, to on or about November 1, 2027. With the Rent Abatement, the first month’s rent will be due on or around June 1, 2028. The Lease, as amended, continues to have an initial term of 120 calendar months.