X0306 4 2022-03-03 0 0001357874 PRECISION BIOSCIENCES INC DTIL 0001858530 List Alan C/O PRECISION BIOSCIENCES, INC. 302 EAST PETTIGREW ST. SUITE A-100 DURHAM NC 27701 0 1 0 0 Chief Medical Officer Employee Stock Option (Right to Buy) 4.08 2022-03-03 4 A 0 140299 0.00 A 2032-03-02 Common Stock 140299 140299 D Restricted Stock Units 2022-03-03 4 A 0 88343 0.00 A Common Stock 88343 88343 D The option vests as to 25% of the underlying shares on March 3, 2023 and thereafter in twelve substantially equal installments at the end of each three-month period over the 36 months following such date, subject to the Reporting Person's continued service to the Company through the applicable vesting dates. The Reporting Person was granted restricted stock units ("RSUs"), which each represent a contingent right to receive one share of the Company's Common Stock. The RSUs shall vest in three substantially equal annual installments on the anniversary of the grant date of such RSUs, subject to the Reporting Person's continued service to the Company through the applicable vesting dates. /s/ Dario Scimeca, Attorney-in-Fact for Alan List 2022-03-07