09:14 AM EDT, 05/14/2026 (MT Newswires) -- Healthcare stocks were mixed premarket Thursday, with the State Street Health Care Select Sector SPDR ETF ( XLV ) 0.2% higher and the iShares Biotechnology ETF (IBB) declining by 0.1%.

Aveanna Healthcare ( AVAH ) stock was up more than 9% after the company reported higher fiscal Q1 adjusted earnings and revenue, and raised its fiscal 2026 revenue guidance.

Biogen (BIIB) shares were up more than 1% after the company said a phase 2 study evaluating diranersen in patients with early Alzheimer's disease did not meet its primary endpoint evaluating dose response for change from baseline on the Clinical Dementia Rating-Sum of Boxes at week 76.

MeiraGTx ( MGTX ) stock was down 1% after the company posted a wider Q1 adjusted loss as revenue fell during the period.