X0206 3 2020-07-09 0 0001787400 Nkarta, Inc. NKTK 0001237289 SANDELL SCOTT D 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 0 0 1 0 Series A Preferred Stock Common Stock 522639 I See Note 2 Series B Preferred Stock Common Stock 1712810 I See Note 2 The Series A Preferred Stock is convertible into Common Stock on a 3.7-for-1 basis into the number of shares of Common Stock as shown in Column 3 without payment of further consideration, at any time at the holder's election or upon closing of the initial public offering of the Issuer's Common Stock. The shares have 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. The Series B Preferred Stock is convertible into Common Stock on a 3.7-for-1 basis into the number of shares of Common Stock as shown in Column 3 without payment of further consideration, at any time at the holder's election or upon closing of the initial public offering of the Issuer's Common Stock. The shares have no expiration date. /s/ Sasha Keough, attorney-in-fact 2020-07-09