ARTV ▼ -3.6% - Artiva Biotherapeutics, Inc. $ARTV - Artiva Biotherapeutics Announces Oral Presentation of AlloNK® Clinical Data at the 17th International Symposium on Sjögren’s Disease Artiva Biotherapeutics fell 3.6% today despite announcing an oral presentation of clinical data for its AlloNK® program at the 17th International Symposium on Sjögren's Disease. The decline suggests investors may have been disappointed by the timing or scope of the data presentation, or the market may have already priced in expectations for this conference update. 23-SEP-2026 07:30 AM ET