X0306 4 2020-07-14 0 0001787400 Nkarta, Inc. NKTK 0001237289 SANDELL SCOTT D 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 0 0 1 0 Common Stock 2020-07-14 4 C 0 522639 A 522639 I See Note 2 Common Stock 2020-07-14 4 C 0 1712810 A 2235449 I See Note 2 Common Stock 2020-07-14 4 P 0 666666 18.00 A 2902115 I See Note 2 Series A Preferred Stock 2020-07-14 4 C 0 522639 0.00 D Common Stock 522639 0 I See Note 2 Series B Preferred Stock 2020-07-14 4 C 0 1712810 0.00 D Common Stock 1712810 0 I See Note 2 On July 14, 2020, the Series A Preferred Stock converted into Common Stock on a 3.7-for-1 basis upon the closing of the Issuer's initial public offering without payment of consideration. The Series A Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date. The Reporting Person is a manager of NEA 15 GP, LLC, which is the sole general partner of NEA Partners 15, L.P. ("NEA Partners 15"). NEA Partners 15 is the sole general partner of New Enterprise Associates 15, L.P. ("NEA 15"), which is the direct beneficial owner of the shares. The Reporting Person disclaims beneficial ownership within the meaning of Section 16 of the Securities Exchange Act of 1934, as amended, or otherwise of such portion of the shares held by NEA 15 in which the Reporting Person has no pecuniary interest. On July 14, 2020, the Series B Preferred Stock converted into Common Stock on a 3.7-for-1 basis upon the closing of the Issuer's initial public offering without payment of consideration. The Series B Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date. /s/ Sasha Keough, attorney-in-fact 2020-07-16