GRAIL, Inc. GRAL Number of financial institutions

The Company is subject to credit risk from its portfolio of cash, cash equivalents and short-term marketable securities held at three accredited financial institutions. As of June 30, 2026, the Company had $55.6 million of cash and cash equivalents, and short-term marketable securities of $806.0 million. The Company limits its exposure to credit losses by investing in money market funds and United States (“U.S.”) government treasury securities through U.S. banks with high credit ratings. The Company’s cash consists of deposits held with banks that may at times exceed federally insured limits, however, its exposure to credit risk in the event of default by the financial institution is limited to the extent of amounts recorded on the condensed consolidated balance sheets. The Company performs evaluations of the relative credit standing of these financial institutions to limit the amount of credit exposure. The Company has not experienced any losses in such accounts.