ImmunityBio, Inc. — Director's Dealing 2015

Aug 5, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: NantKwest, Inc. (NK)
CIK: 0001326110
Period of Report: 2015-07-27

Reporting Person: Simon Barry J. (Director, President and COO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-07-27	Common Stock	M	185150	$0.00	Acquired	3355690	Direct
2015-07-27	Common Stock	F	96612	$25.00	Disposed	3259078	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-07-27	Restricted Stock Units	$	A	370300	Acquired		Common Stock (370300)	Direct
2015-07-27	Restricted Stock Units	$	M	185150	Disposed		Common Stock (185150)	Direct
2015-07-27	Stock Option (right to buy)	$25.00	A	555450	Acquired	2025-07-27	Common Stock (555450)	Direct

Footnotes

F1: Each restricted stock unit ("RSU") represents a contingent right to receive one share of NantKwest, Inc. common stock.

F2: Subject to the reporting person's continuing to be a Service Provider (as defined in the 2015 Equity Incentive Plan) through each applicable vesting date, the restricted stock units ("RSUs") will vest as follows: 50% of the RSUs vested on July 27, 2015, and 50% of the RSUs will vest on July 27, 2016.

F3: Subject to the award recipient's continuing to be a Service Provider (as defined in the 2015 Equity Incentive Plan) through each applicable vesting date, the option will vest as follows: 50% of the shares subject to the option vested and became exercisable on July 27, 2015, and 50% of the shares subject to the option shall vest and become exercisable on July 27, 2016.