SAN DIEGO, Aug. 13, 2026 /PRNewswire/ -- Atrium Therapeutics, Inc. (Nasdaq: RNA) ("Atrium," "Atrium Therapeutics" or the "Company"), a biopharmaceutical company dedicated to delivering RNA therapeutics to the heart, today announced it has earned another $15 million milestone payment from Bristol Myers Squibb (NYSE: BMY) based on the successful delivery of a lead compound targeting an undisclosed cardiology indication under the Company's ongoing collaboration.