Nkarta (NKTX) CEO reports 1,776-share tax-related sale, holds 390,247 shares

Rhea-AI Filing Summary

Nkarta, Inc. Chief Executive Officer Paul J. Hastings reported an open-market sale of 1,776 shares of common stock at $2.71 per share. According to the disclosure, these shares were sold to satisfy tax withholding obligations tied to vesting and settlement of Restricted Stock Units and were not a discretionary trade. After this transaction, Hastings directly holds 390,247 shares of Nkarta common stock, which includes 2,000 shares acquired under the company’s 2020 Employee Stock Purchase Plan on May 31, 2026.

Insights

Equity compensation and insider-trading analyst

CEO’s reported sale is small, tax-driven, and routine in nature.

The CEO of Nkarta, Inc., Paul J. Hastings, reported selling 1,776 shares of common stock at $2.71 per share. A footnote explains the sale was solely to cover tax withholding obligations from Restricted Stock Unit vesting, indicating a mechanical transaction rather than an active portfolio decision.

The filing shows Hastings still directly holds 390,247 shares, including 2,000 shares acquired through the 2020 Employee Stock Purchase Plan on May 31, 2026. Given the small number of shares involved relative to his holdings and the tax-driven nature, this event is typically viewed as routine and carries limited informational value about his view of the stock.

Insider Trade Summary

Net Seller: 1,776 shares ($4,813)

Net Sell 1 txn

Insider HASTINGS PAUL J

Role Chief Executive Officer

Sold 1,776 shs ($5K)

Type	Security	Shares	Price	Value
Sale	Common Stock	1,776	$2.71	$5K

Holdings After Transaction: Common Stock — 390,247 shares (Direct, null)

Footnotes (1)

1. Represents shares sold to satisfy tax withholding obligations in connection with the vesting and settlement of Restricted Stock Units and does not represent a discretionary transaction by the Reporting Person. Includes 2,000 shares acquired under the Issuer's 2020 Employee Stock Purchase Plan on May 31, 2026.

Key Figures

Shares sold: 1,776 shares Sale price: $2.71 per share Shares held after transaction: 390,247 shares +1 more

4 metrics

Shares sold 1,776 shares Open-market sale on June 18, 2026

Sale price $2.71 per share Price for 1,776 shares sold

Shares held after transaction 390,247 shares Direct holdings following June 18, 2026 sale

ESPP shares included 2,000 shares Acquired under 2020 Employee Stock Purchase Plan on May 31, 2026

Key Terms

Restricted Stock Units, tax withholding obligations, 2020 Employee Stock Purchase Plan

3 terms

Restricted Stock Units financial

"in connection with the vesting and settlement of Restricted Stock Units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax withholding obligations financial

"shares sold to satisfy tax withholding obligations in connection with the vesting"

2020 Employee Stock Purchase Plan financial

"Includes 2,000 shares acquired under the Issuer's 2020 Employee Stock Purchase Plan"

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/22/2026 - 04:05 PM Accepted by SEC EDGAR 06/22/2026 - 04:05 PM Learn about SEC filing dates

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

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

HASTINGS PAUL J

(Last) (First) (Middle)

C/O NKARTA, INC.

1150 VETERANS BOULEVARD

(Street)

SOUTH SAN FRANCISCO CALIFORNIA 94080

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Nkarta, Inc. [ NKTX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/18/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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	06/18/2026		S		1,776(1)	D	$2.71	390,247(2)	D

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

Explanation of Responses:

1. Represents shares sold to satisfy tax withholding obligations in connection with the vesting and settlement of Restricted Stock Units and does not represent a discretionary transaction by the Reporting Person.

2. Includes 2,000 shares acquired under the Issuer's 2020 Employee Stock Purchase Plan on May 31, 2026.

	/s/ Bridgette Housley, as Attorney-in-Fact	06/22/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did Nkarta (NKTX) CEO Paul J. Hastings report in this Form 4?

Nkarta CEO Paul J. Hastings reported selling 1,776 shares of common stock at $2.71 per share. The filing states these shares were sold to satisfy tax withholding obligations from Restricted Stock Unit vesting, rather than as a discretionary decision to reduce his ownership stake.

Why did the Nkarta (NKTX) CEO sell 1,776 shares of common stock?

The 1,776 shares were sold to cover tax withholding obligations tied to the vesting and settlement of Restricted Stock Units. The disclosure explicitly notes this was not a discretionary trade by Paul J. Hastings, indicating a routine, compensation-related tax event rather than an active share-sale decision.

How many Nkarta (NKTX) shares does the CEO hold after this transaction?

Following the reported sale, Paul J. Hastings directly holds 390,247 shares of Nkarta common stock. This total includes 2,000 shares that were acquired under Nkarta’s 2020 Employee Stock Purchase Plan on May 31, 2026, as specified in the footnotes to the filing.

Was the Nkarta (NKTX) CEO’s share sale a discretionary insider trade?

The filing states the sale was not discretionary. It explains the 1,776 shares were sold specifically to satisfy tax withholding obligations associated with Restricted Stock Unit vesting and settlement, which is a common, mechanical step in equity compensation rather than an optional sale decision.

What role do Restricted Stock Units play in this Nkarta (NKTX) Form 4?

Restricted Stock Units triggered the tax event underlying this Form 4. When the RSUs vested and settled, taxes became due, and 1,776 shares were sold to satisfy withholding obligations. This connects the reported sale directly to routine equity compensation mechanics rather than a change in investment stance.

What is noted about Nkarta’s 2020 Employee Stock Purchase Plan in the filing?

The disclosure notes that Paul J. Hastings’ holdings include 2,000 shares acquired under Nkarta’s 2020 Employee Stock Purchase Plan on May 31, 2026. This indicates he participates in the company’s employee stock purchase program in addition to receiving equity compensation like Restricted Stock Units.