Healthcare stocks declined late Wednesday afternoon, with the NYSE Healthcare Index falling 1.3% and the State Street Health Care Select Sector SPDR ETF (XLV) shedding 1.8%.
The iShares Biotechnology ETF (IBB) rose 0.7%.
In corporate news, ResMed (RMD) shares fell 4.5% after Morgan Stanley downgraded the company to equalweight from overweight and cut its price target to $230 from $286.
UniQure (QURE) shares surged 76% after the company said that it intends to submit a Biologics License Application for the accelerated approval of AMT-130 to treat Huntington's disease in Q3.
Novo Nordisk (NVO) said it is aware of claims by cyber extortion group FulcrumSec that it stole company data and sought a $25 million payment, Reuters reported. Novo shares were up 0.2%.
Moderna (MRNA) plans to invest in production sites in Germany and is interested in the plants that BioNTech (BNTX) has slated for closure, according to a Google translation of a Wednesday report from German news outlet Handelsblatt. Moderna shares jumped almost 11%, and BioNTech was up 2.3%.