X0306 4 2019-03-13 0 0001737287 Allogene Therapeutics, Inc. ALLO 0001296549 Belldegrun Arie 210 EAST GRAND AVENUE SOUTH SAN FRANCISCO CA 94080 1 0 0 0 Common Stock 2019-03-13 4 A 0 115333 0.00 A 150333 D Common Stock 3710006 I See footnote Common Stock 5989352 I See footnote Common Stock 1691781 I See footnote Common Stock 488250 I See footnote Stock Option (Right to Buy) 26.89 2019-03-13 4 A 0 195133 0.00 A 2029-03-12 Common Stock 195133 195133 D The securities are held in the name of the Belldegrun Family Trust. The securities are held by VVAG Special Fund LLC (VVAG), of which VVAG LLC is the manager. The reporting person is a Senior Managing Director of VVAG LLC and may therefore be deemed to be the beneficial owner of the common shares held by VVAG. The reporting person disclaims beneficial ownership of such shares, except to the extent of any pecuniary interest therein. The securities are held by Vida Ventures LLC (Vida), of which VV Manager LLC is the manager. The reporting person is a Senior Managing Director of VV Manager LLC and may therefore be deemed to be the beneficial owner of the common shares held by Vida. The reporting person disclaims beneficial ownership of such shares, except to the extent of any pecuniary interest therein. The securities are held in the name of Bellco Capital, LLC, of which the reporting person is the manager. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose. 25% of the shares subject to the stock option shall vest on the first anniversary of the grant date, and the remaining shares shall vest in 36 equal monthly installments thereafter. /s/ Veer Bhavnagri, Attorney-in-Fact 2019-03-15