Cartesian Therapeutics Announces New Employment Inducement Grant

Cartesian Therapeutics, Inc. (NASDAQ: RNAC) (the “Company”), a late clinical-stage biotechnology company pioneering cell therapy for autoimmune diseases, today announced the granting of an inducement award to one new employee. On June 8, 2026, the Company issued to this employee an option to purchase an aggregate of 6,100 shares of the Company’s common stock with an exercise price of $5.86, the closing trading price of the Company’s common stock on the Nasdaq Global Market on the date of grant. The option was granted pursuant to the Company’s Amended and Restated 2018 Employment Inducement Incentive Award Plan and was approved by the Company’s board of directors. The option vests as to 25% on June 8, 2027, and then in thirty-six substantially equal monthly installments thereafter such that the option will be fully vested on June 8, 2030. The option has a ten-year term. The option was granted under Rule 5635(c)(4) of the Nasdaq Listing Rules as an inducement material to the employee’s entry into employment with the Company.

About Cartesian Therapeutics

Cartesian Therapeutics is a late clinical-stage company pioneering cell therapy for the treatment of autoimmune diseases. The Company’s lead asset, Descartes-08, is a CAR-T in Phase 3 clinical development for patients with generalized myasthenia gravis, Phase 2 clinical development in myositis, specifically dermatomyositis and antisynthetase syndrome, and in Phase 1/2 clinical development for pediatric autoimmune diseases, including juvenile dermatomyositis. For more information, please visit www.cartesiantherapeutics.com or follow the Company on LinkedIn or X .

Contact Information: Investor Contact: Megan LeDuc Associate Director, Investor Relations [email protected]

Media Contact: David Rosen Argot Partners [email protected]