Kiniksa Pharmaceuticals International plc (KNSA), which reported second-quarter results last week, is one of the top gainers in premarket trading today. The company demonstrated robust commercial performance, driven by expanding penetration of its flagship product, Arcalyst, in the recurrent pericarditis population, supported by growth among both new and repeat prescribers.
The following is the list of biotech stocks making big moves in premarket hours.
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May 22, 2026 14:46 ET Minutes of the latest Fed policy session was the highlight of the week along with survey data on the U.S. housing market. In Europe, survey data signaled the trends in the euro area private sector. Further, consumer price inflation data from the U.K. was in focus. In Asia, various economic indicators from China drew attention to the health of the economy.