August 29, 2019
VIA EDGAR
Division of Corporation Finance
U.S. Securities & Exchange Commission
100 F Street, N.E.
Washington, D.C. 20549
Attention: Tonya K. Aldave
| Re: | NantKwest, Inc. |
| Registration Statement on Form S-3 |
| Filed August 23, 2019 |
| File No. 333-233434 |
Acceleration Request
Requested Date: September 3, 2019
Requested Time: 4:00 P.M. Eastern Time
Ladies and Gentlemen:
Pursuant to Rule 461 under the Securities Act of 1933, as amended, NantKwest, Inc. (the “Company”) hereby requests that the above-referenced Registration Statement on Form S-3 (File No. 333-233434) (the “Registration Statement”) be declared effective at the “Requested Date” and “Requested Time” set forth above or at such later time as the Company or its counsel may orally request via telephone call to the staff of the Division of Corporation Finance of the Securities and Exchange Commission. Once the Registration Statement has been declared effective, please orally confirm that event with our counsel, Wilson Sonsini Goodrich & Rosati, Professional Corporation, by calling Thomas E. Hornish at (858) 350-2392.
* * * *
| Sincerely, |
| NANTKWEST, INC. |
| /s/ Sonja Nelson |
| Sonja Nelson |
| Chief Financial Officer |
| cc: | Steven C. Yang, NantKwest, Inc. |
Martin J. Waters, Wilson Sonsini Goodrich & Rosati, P.C.
Thomas E. Hornish, Wilson Sonsini Goodrich & Rosati, P.C.