Nkarta (NKTX) director granted stock options on 37,000 shares

Rhea-AI Filing Summary

Nkarta, Inc. director Patterson Leone D received a grant of stock options covering 37,000 shares of common stock at an exercise price of $2.46 per share. The options vest 100% on the earlier of June 10, 2027 or the day before the first annual stockholder meeting after the grant date.

These options expire on June 9, 2036 and will fully vest if there is a qualifying change in control, or if the director’s service ends due to death or disability. This filing reflects a compensation-related award rather than open-market buying or selling.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider PATTERSON LEONE D

Role null

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (right to buy)	37,000	$0.00	--

Holdings After Transaction: Stock Option (right to buy) — 37,000 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Option grant size: 37,000 shares Exercise price: $2.46 per share Post-grant derivative holdings: 37,000 options +2 more

5 metrics

Option grant size 37,000 shares Stock Option (right to buy) underlying common stock shares

Exercise price $2.46 per share Conversion or exercise price of the stock option grant

Post-grant derivative holdings 37,000 options Total derivative shares following the transaction

Option expiration date June 9, 2036 Expiration date of the granted stock options

Cliff vesting date June 10, 2027 Scheduled 100% vesting date absent earlier events

Key Terms

Stock Option (right to buy), exercise price, expiration date, change in control, +1 more

5 terms

Stock Option (right to buy) financial

"security_title: Stock Option (right to buy)"

exercise price financial

"conversion_or_exercise_price: 2.4600"

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

expiration date financial

"expiration_date: 2036-06-09T00:00:00.000Z"

The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised. It matters to investors because it determines the timeframe during which they can take action or benefit from the contract, similar to how a coupon or a food item has a limited period of usefulness. Once the expiration date passes, the contract loses its value or ability to be used.

change in control financial

"will become fully vested should a "change in control" of the Issuer occur"

A "change in control" occurs when the ownership or management of a company shifts significantly, such as through a merger, acquisition, or sale of a large part of its assets. This change can impact how the company is run and may influence its future direction. For investors, it matters because it can affect the company's stability, strategy, and value, often signaling potential changes in investment risk or opportunity.

disability financial

"separation from service with the Issuer due to the Reporting Person's death or "disability""

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/11/2026 - 04:08 PM Accepted by SEC EDGAR 06/11/2026 - 04:07 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^*

PATTERSON LEONE D

(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
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/10/2026

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

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)	$2.46	06/10/2026		A		37,000		(1)	06/09/2036	Common Stock	37,000	$0	37,000	D

Explanation of Responses:

1. All shares subject to the option vest 100% on the first to occur of (i) June 10, 2027 or (ii) the day immediately preceding the first annual meeting of the Issuer's stockholders to occur after the date of grant of the award. 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 Reporting Person's separation from service with the Issuer due to the Reporting Person's death or "disability" (as described in the applicable award agreement).

	/s/ Bridgette Housley, as Attorney-in-Fact	06/11/2026
	** 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 insider transaction did Nkarta (NKTX) report in this Form 4?

Nkarta reported a director receiving a stock option grant for 37,000 shares of common stock. The award is a compensation-related grant, not an open-market purchase or sale, and gives the right to buy shares at a fixed exercise price.

What are the key terms of the Nkarta (NKTX) director stock option grant?

The director received options on 37,000 shares at an exercise price of $2.46 per share. All options vest 100% based on future service or events and expire on June 9, 2036 if not exercised under the plan’s terms.

When do the newly granted Nkarta (NKTX) options vest for the director?

All shares under the option vest 100% on the earlier of June 10, 2027 or the day immediately before the first annual stockholder meeting following the grant date, assuming continued service and no earlier acceleration events occur.

Can the Nkarta (NKTX) director’s options vest earlier than 2027?

Yes. The grant becomes fully vested if a qualifying change in control occurs, or if the director’s service ends due to death or disability, as described in the applicable award agreement’s definitions and conditions.

Does this Nkarta (NKTX) Form 4 show any stock being bought or sold on the market?

No. The Form 4 reflects a grant of stock options with an exercise price of $2.46, not an open-market purchase or sale of common shares. It records a compensation award rather than trading activity.