October 4, 2018

Via EDGAR Submission

Securities and Exchange Commission

Division of Corporation Finance

100 F Street N.E.

Washington, DC 20549-7010

Dear Ladies and Gentlemen:

In accordance with Rule 461 under the Securities Act of 1933, as amended (the “Act”), we, as the representatives of the several underwriters, hereby join in the request of Allogene Therapeutics, Inc. (the “Company”) for acceleration of the effective date of the above-named Registration Statement so that it becomes effective at 4:30 p.m. Eastern Time on October 9, 2018, or as soon thereafter as practicable.

Pursuant to Rule 460 under the Act, we, as the representatives of the several underwriters, wish to advise you that between October 2, 2018 through the date hereof we have distributed approximately 2,300 copies of the Company’s Preliminary Prospectus dated October 2, 2018 to prospective underwriters, dealers, institutional investors and others.

We, the undersigned, as the representatives of the several underwriters, have complied and will comply, and we have been informed by the participating underwriters that they have complied and will comply, with the requirements of Rule 15c2-8 under the Securities Exchange Act of 1934, as amended.

(signature page follows)

(Signature Page to Acceleration Request Letter)