Founded in late 2020, Acelyrin has closed a $250 million Series B financing led by AyurMaya, an affiliated fund of Matrix Capital Management, Surveyor Capital and Westlake Village BioPartners. Other investors joining the funding round included Cowen Healthcare Investments, Decheng Capital, Marshall Wace, OrbiMed, RTW Investments, LP, Samsara BioCapital, Tybourne Capital Management and venBio Partners.…