X0206 3 2021-06-10 0 0001817713 Janux Therapeutics, Inc. JANX 0001864159 Meyer Andrew Hollman C/O JANUX THERAPEUTICS, INC. 11099 N. TORREY PINES ROAD, SUITE 290 LA JOLLA CA 92037 0 1 0 0 Chief Business Officer Common Stock 59416 D Stock Option (right to buy) 4.208 2031-03-09 Common Stock 150667 D Stock Option (right to buy) 10.586 2031-05-13 Common Stock 128100 D 1/4th of the shares vest one year after March 10,2021 (the "Vesting Commencement Date"); the balance of the shares vest in a series of 36 successive equal monthly installments measured from the first anniversary of the Vesting Commencement Date. The shares subject to this option are early exercisable, subject to the Issuer's right of repurchase. 1/4th of the shares vest one year after May 14, 2021 (the "Vesting Commencement Date"); the balance of the shares vest in a series of 36 successive equal monthly installments measured from the first anniversary of the Vesting Commencement Date. The shares subject to this option are early exercisable, subject to the Issuer's right of repurchase. /s/ Tighe Reardon, Attorney-in-Fact 2021-06-10