NRX Pharmaceuticals, Inc. filed an 8-K on March 22, 2021, under the ticker BRPA — the Nasdaq listing of Big Rock Partners Acquisition Corp., a blank-check company sponsored by Big Rock Partners, LLC that completed its IPO in 2019 targeting the healthcare and life-sciences sector. The filing reflects activity during the de-SPAC process in which Big Rock Partners Acquisition Corp. announced a business combination with NRX Pharmaceuticals, a clinical-stage biopharmaceutical company focused on central nervous system disorders and pulmonary conditions. The transaction ultimately brought NRX Pharmaceuticals into the public markets through the BRPA vehicle, with the combined entity operating in the pharmaceutical development space. Sign up for SpacDesk to access the full filing history, deal timeline, and sponsor profile for BRPA and thousands of other SPAC transactions.