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  4. [Form 4] Nkarta, Inc. Insider Trading Activity

Routine tax-related insider sale disclosed by Nkarta CEO Paul Hastings

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Nkarta, Inc. (NKTX) – Form 4 Insider Transaction Overview

CEO and Director Paul J. Hastings disclosed the sale of 1,790 common shares on 06/18/2025 at a weighted-average price of $1.79. The transaction was automatically executed to satisfy tax-withholding obligations triggered by the vesting and settlement of Restricted Stock Units and therefore was not a discretionary sale. Following the sale, Hastings continues to beneficially own 320,069 shares, which includes 2,000 shares purchased under Nkarta’s 2020 Employee Stock Purchase Plan on 05/31/2025.

No derivative securities were acquired or disposed of, and no additional transactions were reported. Given the small size of the sale—roughly 0.56% of the executive’s total holdings—the filing appears routine and does not signal any change in corporate strategy, financial position, or insider sentiment.

Positive

  • None.

Negative

  • None.

Insights

TL;DR: Routine, tax-driven insider sale; negligible market impact.

The 1,790-share sale equates to about 0.56% of Paul Hastings’ post-transaction stake and was executed solely to cover tax obligations on vested RSUs. Such Rule 10b5-1(c)-compliant, non-discretionary sales carry limited signaling value. With 320,069 shares still held, the CEO maintains significant equity alignment with shareholders. No derivatives or options were involved, and there is no evidence of broader insider selling pressure. Overall, the disclosure is informational with minimal influence on Nkarta’s valuation or risk profile.

Insider HASTINGS PAUL J
Role Chief Executive Officer
Sold 1,790 shs ($3K)
Type Security Shares Price Value
Sale Common Stock 1,790 $1.79 $3K
Holdings After Transaction: Common Stock — 320,069 shares (Direct)
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. This transaction was executed in multiple trades at prices ranging from $1.76 to $1.79. The price reported above reflects the weighted average price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected. Includes 2,000 shares acquired under the Issuer's 2020 Employee Stock Purchase Plan on May 31, 2025.
Form 4 Insider Transactions: What Each Field Means →
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 CA 94080
(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 10% Owner
X Officer (give title below) Other (specify below)
Chief Executive Officer
3. Date of Earliest Transaction (Month/Day/Year)
06/18/2025
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 06/18/2025 S 1,790(1) D $1.79(2) 320,069(3) 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. This transaction was executed in multiple trades at prices ranging from $1.76 to $1.79. The price reported above reflects the weighted average price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.
3. Includes 2,000 shares acquired under the Issuer's 2020 Employee Stock Purchase Plan on May 31, 2025.
/s/ Bridgette Housley, as Attorney-in-Fact 06/20/2025
** 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.

Source: View Original Filing on SEC EDGAR

FAQ

How many Nkarta (NKTX) shares did CEO Paul Hastings sell on 06/18/2025?

The Form 4 reports a sale of 1,790 common shares.

What was the average sale price for the shares sold by Nkarta's CEO?

The weighted-average sale price was $1.79 per share.

Why were the shares sold according to the Form 4 filing?

The shares were sold to cover tax-withholding obligations from RSU vesting, not as a discretionary transaction.

How many Nkarta shares does Paul Hastings own after the transaction?

He beneficially owns 320,069 shares following the sale.

Were any derivative securities involved in this Nkarta Form 4 filing?

No, no derivative securities were acquired or disposed of.