KALA ▲ +3.8% - KALA BIO, Inc. $KALA - Kala Bio and Virotek Finalize Definitive Agreement Establishing Exclusive U.S. Distribution Partnership for Ophthalmology Genetic Testing Program Kala Bio shares rose 3.8% following the company's announcement of a finalized exclusive U.S. distribution partnership with Virotek for its ophthalmology genetic testing program. The deal expands Kala's commercial reach in the genetic testing space by leveraging Virotek's distribution capabilities in the ophthalmology market. 03-SEP-2026 08:31 AM ET