Nkarta (NKTX) director awarded stock options for 37,000 shares at $2.46

Rhea-AI Filing Summary

Nkarta, Inc. director Michael Dybbs received a stock option grant covering 37,000 shares of common stock. The option has an exercise price of $2.46 per share and expires on June 9, 2036.

All 37,000 shares vest 100% on the earlier of June 10, 2027 or the day before the first annual stockholder meeting after the grant date, and become fully vested sooner if there is a change in control of Nkarta, or if Dybbs separates from service due to death or disability.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Dybbs Michael

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 Expiration date: June 9, 2036 +1 more

4 metrics

Option grant size 37,000 shares Stock option covering common stock

Exercise price $2.46 per share Stock option strike price

Expiration date June 9, 2036 Option term end date

Vesting date June 10, 2027 100% vesting on earlier of this date or pre‑meeting date

Key Terms

Stock Option (right to buy), change in control, vest, expiration date

4 terms

Stock Option (right to buy) financial

"security_title": "Stock Option (right to buy)"

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.

vest financial

"All shares subject to the option vest 100% on the first to occur"

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

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.

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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^*

Dybbs Michael

(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 did Nkarta (NKTX) director Michael Dybbs report in this Form 4?

Director Michael Dybbs reported receiving a stock option grant for 37,000 Nkarta shares. The option was awarded at a $2.46 exercise price and represents compensation rather than an open-market purchase or sale, with vesting tied to future service and potential corporate events.

How many Nkarta (NKTX) shares are covered by Michael Dybbs’ new option?

The new option grant covers 37,000 shares of Nkarta common stock. These shares are not owned outright today; they become exercisable only after the vesting schedule is met and must be purchased at the $2.46 per share exercise price to become common stock.

What is the exercise price and expiration date of Michael Dybbs’ Nkarta option?

The stock option has an exercise price of $2.46 per share and expires on June 9, 2036. This means Dybbs can buy up to 37,000 shares at $2.46, once vested, any time before the June 9, 2036 expiration date.

When do Michael Dybbs’ Nkarta (NKTX) stock options vest?

All shares under the option vest 100% on the earlier of June 10, 2027 or the day immediately before Nkarta’s first annual stockholder meeting after the grant date. Vesting concentrates on a single future date instead of gradually over multiple years.

Under what conditions do Michael Dybbs’ Nkarta options vest early?

The option becomes fully vested earlier if Nkarta undergoes a change in control, or if Dybbs’ service ends because of death or disability. These provisions accelerate vesting so the option is not forfeited in those specific circumstances described in the award agreement.

Is this Nkarta (NKTX) Form 4 a market buy or sell by Michael Dybbs?

No, this Form 4 reports a grant of stock options as compensation, not a market buy or sell. The transaction code is “A”, indicating an award, and Dybbs must later exercise the option at $2.46 per share for actual share purchases.