Management Change/Compensation (Form 8-K)

On February 18, 2026, the Board of Directors (the "Board") of Artiva Biotherapeutics, Inc. (the "Company"), upon recommendation of the Nominating and Corporate Governance Committee of the Board, appointed Elaine Sorg as a Class I director of the Company, with a term of office expiring at the Company's 2028 annual meeting of stockholders. There are no arrangements or understandings between Ms. Sorg and any other person pursuant to which she was selected as a director. In addition, there are no transactions in which Ms. Sorg has an interest that would require disclosure under Item 404(a) of Regulation S-K.

Ms. Sorg has more than 35 years' experience as a senior executive with leading pharmaceutical companies including AbbVie and Eli Lilly. Ms. Sorg previously served as Senior Vice President for AbbVie and President of AbbVie's U.S. commercial operations, the company's largest commercial business, from November 2020 until her retirement in January 2024. She was a key leader in bringing a number of groundbreaking medicines to patients across Immunology, Oncology, Neuroscience and Eye Care. Ms. Sorg has been a director of CSL Limited, a global biopharmaceutical company headquartered in Melbourne, Australia, since September 2024. She is currently on the Dean's Advisory Council at Purdue University School of Pharmacy and Pharmaceutical Science and has been a Senior Advisor at the Boston Consulting Group, a global consulting firm, since May 2024, where she advises global health care clients on business-critical strategies and decisions. Ms. Sorg has been a member of the Scientific Strategy Board of Galapagos since October 2025. She holds a Bachelor of Science (Pharmacy) from Purdue University, as well as postgraduate certifications from the University of Chicago Booth School of Management and Harvard Business School.

Pursuant to the Company's Non-Employee Director Compensation Policy (the "Compensation Policy"), Ms. Sorg (i) will receive an annual cash retainer of $40,000 for service on the Board and (ii) was granted on the date of her appointment an option to purchase 27,500 shares of the Company's common stock, of which one-third of the shares vested following the grant date, with the remaining shares vesting monthly over an additional two years following the grant date, subject to Ms. Sorg's continuous service (as defined in the Company's 2024 Equity Incentive Plan (the "Plan")) through each such vesting date. The Compensation Policy also provides for further automatic annual option grants to purchase 13,750 shares of the Company's common stock on the date of each annual meeting of stockholders, which vest in full on either the one-year anniversary of the date of grant or the next annual stockholder meeting, subject to Ms. Sorg's continuous service through such vesting date. Each of the option grants described above will vest in full upon a change in control (as defined in the Plan). The above referenced compensation is subject to the annual compensation limits for non-employee directors set forth in the Compensation Policy. Ms. Sorg has also entered into the Company's standard form of Indemnity Agreement for directors of the Company, a copy of which is filed as Exhibit 10.1 to the Company's Registration Statement on Form S-1, filed with the Securities and Exchange Commission on June 28, 2024.