PRECISION BIOSCIENCES INC — Director's Dealing 2020

May 19, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PRECISION BIOSCIENCES INC (DTIL)
CIK: 0001357874
Period of Report: 2020-05-15

Reporting Person: ANSARI ABID (Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-05-15	Common Stock	M	8783	$1.20	Acquired	134740	Direct
2020-05-15	Common Stock	M	878	$1.18	Acquired	135618	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-05-15	Employee Stock Options (Right to Buy)	$1.20	M	8783	Disposed	2026-08-10	Common Stock (8783)	Direct
2020-05-15	Employee Stock Options (Right to Buy)	$1.18	M	878	Disposed	2027-03-23	Common Stock (878)	Direct

Footnotes

F1: Includes 2,112 additional shares acquired under the Company's 2019 Employee Stock Purchase Plan since the Reporting Person's ownership report filed on January 8, 2020.

F2: The option vested as to 25% of the underlying shares on August 11, 2017 and vests in equal installments at the end of each successive three month
period over the 36 months following such date.

F3: The option vested as to 25% of the underlying shares on March 24, 2018 and vests in equal installments at the end of each successive three month
period over the 36 months following such date.