SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
 Â	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* GLAXOSMITHKLINE PLC (Last) (First) (Middle) 980 GREAT WEST ROAD (Street) BRENTFORD MIDDLESEX X0 TW8 9GS (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol Nkarta, Inc. [ NKTX ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director X 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 07/14/2020
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	07/14/2020		C		79,090	A	(1)	79,090	I	See Footnote(2)
Common Stock	07/14/2020		C		525,499	A	(1)	604,589	I	See Footnote(3)
Common Stock	07/14/2020		C		1,712,810	A	(4)	2,317,399	I	See Footnote(3)
Common Stock	07/14/2020		P		833,333(5)	A	$18	3,150,732	I	See Footnote(3)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Series A Preferred Stock	(1)	07/14/2020		C			292,663	(1)	(1)	Common Stock	79,090	(1)	0	I	See Footnote(2)
Series A Preferred Stock	(1)	07/14/2020		C			1,994,348	(1)	(1)	Common Stock	525,499	(1)	0	I	See Footnote(3)
Series B Preferred Stock	(4)	07/14/2020		C			6,337,403	(4)	(4)	Common Stock	1,712,810	(1)	0	I	See Footnote(3)
Stock Option (right to buy)	$18	07/14/2020		A		10,700		(6)(7)	07/08/2030	Common Stock	10,700	$0	10,700	I	See Footnote(3)

Explanation of Responses:

1. The Series A Preferred Stock were convertible at a conversion rate equal to one share of Common Stock per 3.7 shares of Series A Preferred Stock at any time at the option of the holder and were automatically converted upon the closing of the Issuer's initial public offering. The shares had no expiration date.

2. The shares reported herein are held by Glaxo Group Limited, an indirect, wholly-owned subsidiary of GlaxoSmithKline plc.

3. The shares reported herein are held by S.R. One, Limited, an indirect, wholly-owned subsidiary of GlaxoSmithKline plc.

4. The Series B Preferred Stock were convertible at a conversion rate equal to one share of Common Stock per 3.7 shares of Series B Preferred Stock at any time at the option of the holder and were automatically converted upon the closing of the Issuer's initial public offering. The shares had no expiration date.

5. S.R. One, Limited purchased 833,333 shares of Common Stock of Nkarta, Inc. (the "Issuer") in connection with the Issuer's public offering.

6. The stock option was granted to Simeon J. George as director's compensation and it vests 100% on the first anniversary of July 9, 2020, or, if earlier, on the day immediately preceding the first annual meeting of the Issuer's stockholders in 2021 at which one or more members of the Issuer's board of directors are to be elected. Each grant, to the extent outstanding and otherwise unvested, will become fully vested should a "change in control" of the Issuer occur (as described in the applicable award agreement) or upon the Simeon George's separation from service with the Issuer due to death or "disability" (as described in the applicable award agreement).

7. (continued from footnote 6) As Chief Executive Officer, President and a Member of the Board of Trustees at S.R. One, Limited and an employee of GlaxoSmithKline LLC, an indirect, wholly-owned subsidiary of GlaxoSmithKline plc, Simeon J. George is obligated to transfer any shares issued under the stock option to S.R. One, Limited, an indirect, wholly-owned subsidiary of GlaxoSmithKline plc. Mr. George disclaims beneficial ownership of all the shares held by S.R. One, Limited and this report shall not be deemed an admission of beneficial ownership of such shares for the purposes of Section 16 or for any other purpose except to the extent of his pecuniary interest therein.

	/s/ Victoria Whyte	07/16/2020
	** Signature of Reporting Person	Date
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