[Form 4] Artiva Biotherapeutics, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Artiva Biotherapeutics, Inc. (ARTV) reported an insider equity transaction by its Chief Tech Operations Officer. On 11/15/2025, 1,899 shares of common stock were withheld by the company at a price of $3.25 per share to cover income tax obligations tied to the vesting of restricted stock unit awards. After this tax withholding, the officer beneficially owns 78,183 shares of Artiva common stock in direct ownership. This filing is an administrative Form 4 disclosure of equity compensation and related tax settlement rather than an open-market buy or sell.

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

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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^*

Horan Christopher

(Last) (First) (Middle)

C/O ARTIVA BIOTHERAPEUTICS, INC.

5505 MOREHOUSE DRIVE, SUITE 100

(Street)

SAN DIEGO CA 92121

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Artiva Biotherapeutics, Inc. [ ARTV ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
11/15/2025

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	11/15/2025		F		1,899(1)	D	$3.25	78,183	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 withheld by the Issuer to satisfy income tax obligations associated with the vesting of restricted stock unit awards.

	/s/ Neha Krishnamohan, Attorney-in-Fact	11/17/2025
	** 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.

FAQ

What insider transaction did Artiva Biotherapeutics (ARTV) report on this Form 4?

The filing reports that Artiva Biotherapeutics' Chief Tech Operations Officer had 1,899 shares of common stock withheld by the company on 11/15/2025 to satisfy income tax obligations from the vesting of restricted stock unit awards.

At what price were the Artiva Biotherapeutics (ARTV) shares withheld for taxes?

The 1,899 shares of Artiva Biotherapeutics common stock were withheld at a price of $3.25 per share in connection with the RSU vesting tax settlement.

How many Artiva Biotherapeutics (ARTV) shares does the insider own after this transaction?

Following the reported tax withholding transaction, the Chief Tech Operations Officer beneficially owns 78,183 shares of Artiva Biotherapeutics common stock in direct ownership.

Was the Artiva Biotherapeutics (ARTV) insider transaction an open-market trade?

No. The filing explains that the 1,899 shares represent stock withheld by Artiva Biotherapeutics to cover income tax obligations associated with the vesting of restricted stock unit awards, rather than an open-market purchase or sale.

Who is the reporting person in this Artiva Biotherapeutics (ARTV) Form 4 filing?

The reporting person is an officer of Artiva Biotherapeutics, serving as the company's Chief Tech Operations Officer, and is filing individually as indicated on the form.

Does this Artiva Biotherapeutics (ARTV) Form 4 involve derivative securities or options?

The provided excerpt includes a table for derivative securities but does not show any completed entries for options, warrants, or other derivative transactions, while the reported activity relates to non-derivative common stock withheld for taxes.