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

Nkarta (NKTX) President awarded 80,000 RSUs and 160,000 options in equity grant

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

Rhea-AI Filing Summary

Nkarta, Inc. reported an equity award to its President, Mahmood Nadir, in the form of both restricted stock units and stock options. On 01/06/2026, he received 80,000 shares of Common Stock as Restricted Stock Units, which are scheduled to vest in four equal annual installments beginning on January 14, 2027. Each RSU represents a contingent right to receive one share of Common Stock.

On the same date, he was also granted a stock option covering 160,000 shares of Common Stock at an exercise price of $ 1.93 per share, expiring on 01/05/2036. This option is scheduled to vest in 48 equal monthly installments following January 14, 2026, contingent on continued service. After these transactions, he directly beneficially owned 173,376 shares of Common Stock and 160,000 derivative securities.

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Insider Mahmood Nadir
Role President
Type Security Shares Price Value
Grant/Award Stock Option (right to buy) 160,000 $0.00 --
Grant/Award Common Stock 80,000 $0.00 --
Holdings After Transaction: Stock Option (right to buy) — 160,000 shares (Direct); Common Stock — 173,376 shares (Direct)
Footnotes (1)
  1. Represents Restricted Stock Units ("RSUs") which vest in four equal annual installments beginning on January 14, 2027. Each RSU represents a contingent right to receive one share of Common Stock of the Issuer. This option is scheduled to vest and become exercisable in 48 equal monthly installments occurring on the completion of each successive month of the Reporting Person's service to the Issuer following January 14, 2026.
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*
Mahmood Nadir
(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)
Director 10% Owner
X Officer (give title below) Other (specify below)
President
3. Date of Earliest Transaction (Month/Day/Year)
01/06/2026
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 01/06/2026 A 80,000(1) A $0 173,376 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
Stock Option (right to buy) $1.93 01/06/2026 A 160,000 (2) 01/05/2036 Common Stock 160,000 $0 160,000 D
Explanation of Responses:
1. Represents Restricted Stock Units ("RSUs") which vest in four equal annual installments beginning on January 14, 2027. Each RSU represents a contingent right to receive one share of Common Stock of the Issuer.
2. This option is scheduled to vest and become exercisable in 48 equal monthly installments occurring on the completion of each successive month of the Reporting Person's service to the Issuer following January 14, 2026.
/s/ Bridgette Housley, as Attorney-in-Fact 01/08/2026
** 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.

Source: View Original Filing on SEC EDGAR

FAQ

What insider transactions did NKTX President Mahmood Nadir report on this Form 4?

Mahmood Nadir reported receiving 80,000 Restricted Stock Units of Nkarta, Inc. Common Stock and a stock option for 160,000 shares with an exercise price of $ 1.93 per share, both dated 01/06/2026.

How do the 80,000 Nkarta (NKTX) RSUs granted to Mahmood Nadir vest?

The 80,000 Restricted Stock Units vest in four equal annual installments beginning on January 14, 2027, with each RSU representing a right to receive one share of Common Stock.

What are the key terms of the 160,000 share stock option granted to the NKTX President?

The stock option covers 160,000 shares of Nkarta Common Stock at an exercise price of $ 1.93 per share, is scheduled to vest in 48 equal monthly installments after January 14, 2026, and has an expiration date of 01/05/2036.

How many Nkarta (NKTX) shares does Mahmood Nadir own after these Form 4 transactions?

Following the reported transactions, Mahmood Nadir beneficially owned 173,376 shares of Nkarta Common Stock directly, along with 160,000 derivative securities in the form of a stock option.

Were the equity awards to the NKTX President reported as direct or indirect ownership?

Both the 80,000 RSUs in Common Stock and the 160,000 share stock option were reported as direct (D) ownership by Mahmood Nadir, with no indirect ownership entity noted.

Does this NKTX Form 4 indicate the use of a Rule 10b5-1 trading plan?

The document includes a checkbox for indicating transactions under a Rule 10b5-1(c) trading plan, but the provided content does not show it marked for these awards.