X0609 4 2026-10-06 0001817241 Artiva Biotherapeutics, Inc. ARTV 0001909362 Aslan Fred false C/O ARTIVA BIOTHERAPEUTICS, INC. 5505 MOREHOUSE DRIVE, SUITE 100 SAN DIEGO CA 92121 true true false false Chief Executive Officer true Common Stock 2026-10-06 4 S false 23463 7.1977 D 1519606 D The reported transactions occurred pursuant to a Rule 10b5-1 Plan adopted by the reporting person on May 13, 2026. The weighted average sale price for the transaction reported was $7.1977, and the range of prices were between $6.92 and $7.36. Upon request by the SEC staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price will be provided. /s/ Jennifer Bush, Attorney-in-Fact 2026-10-07