SCHEDULE 13G

CUSIP No. 384747101

EXHIBIT INDEX TO SCHEDULE 13G

EXHIBIT 1

Joint Filing Agreement, dated as of November 14, 2024, by and between Sessa Capital (Master), L.P., Sessa Capital GP, LLC, Sessa Capital IM, L.P., Sessa Capital IM GP, LLC, and John Petry.

SCHEDULE 13G

CUSIP No. 384747101

Exhibit 1

JOINT FILING AGREEMENT

Pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, the undersigned agree, as of November 14, 2024, that only one statement containing the information required by Schedule 13G, and each amendment thereto, need be filed with respect to the ownership by each of the undersigned of shares of Common Stock of GRAIL, Inc. and such statement to which this Joint Filing Agreement is attached as Exhibit 1 is filed on behalf of each of the undersigned.