08:51 AM EDT, 03/21/2025 (MT Newswires) -- Health care stocks were flat premarket Friday as the iShares Biotechnology ETF (IBB) and the Health Care Select Sector SPDR Fund (XLV) were inactive recently.

Alnylam Pharmaceuticals ( ALNY ) shares rose past 4% after the company said the US Food and Drug Administration has approved the supplemental new drug application for its heart drug Amvuttra.