ImmunityBio, Inc. — Director's Dealing 2016

Jul 12, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: NantKwest, Inc. (NK)
CIK: 0001326110
Period of Report: 2016-07-07

Reporting Person: SOON-SHIONG PATRICK (Director, Chairman and CEO, 10% Owner)
Reporting Person: Chan Soon-Shiong Family Foundation (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-07-07	Common Stock	P	5618326	—	Acquired	5618326	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	41016557	Indirect
Common Stock	600000	Direct

Footnotes

F1: The Chan Soon-Shiong Family Foundation (the "Foundation") entered into to a letter agreement (the "Letter Agreement") with Sorrento Therapeutics, Inc. ("Sorrento"), pursuant to which (a) Sorrento agreed to sell to the Foundation, and the Foundation agreed to purchase from Sorrento, 5,618,326 shares of Common Stock of NantKwest, Inc., (b) the Foundation agreed to sell to Sorrento, and Sorrento agreed to purchase from the Foundation, 7,878,098 shares of Sorrento common stock, and (c) Sorrento agreed to pay to Foundation an aggregate of $15,639,071.95.

F2: Shares held by the Chan Soon-Shiong Family Foundation, an exempt corporation organized under the laws of the State of Delaware (the "Foundation"). The Foundation has the sole power to vote and direct the disposition of all shares directly owned by the Foundation, except to the extent it may be deemed to share such power with the reporting person by virtue of the reporting person's control over the Foundation. The reporting person serves as Chairman of the Foundation.

F3: Shares held by Cambridge Equities, LP ("Cambridge Equities"). MP 13 Ventures, LLC ("MP 13 Ventures") is the general partner of Cambridge Equities and may be deemed to have beneficial ownership of the shares held by Cambridge Equities. The reporting person is the sole member of MP 13 Ventures and has voting and dispositive power over the shares held by Cambridge Equities.

F4: Each restricted stock unit ("RSU") represents a contingent right to receive one share of NantKwest, Inc. common stock. 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 RSUs will vest as follows: 50% of the RSUs vested on the July 27, 2015, and 50% of the RSUs will vest on July 27, 2016.