active managers · excl. 24 index-like or broadCompare › PeerLargest in commonManagers in common
% of peer’s 13F baseLead holder
% of peer
EWTXRA Capital ManagementPerceptiveBaker Bros.+8 more18.89%7.01% ASNDRA Capital ManagementWestfieldPerceptive+9 more18.42%15.20% SLDBRA Capital ManagementPerceptiveSiren+6 more17.25%10.49% PRLDRA Capital ManagementBaker Bros.Adage Capital Partners GP+1 more16.77%12.98% MNPRRA Capital ManagementPolar CapitalSiren+5 more15.54%10.72% SIONRA Capital ManagementPerceptiveSiren+7 more15.28%20.52% Lead holder = first named, largest shared stakeSource: 13F · Jun 30 '26Compare ›