- EXCLUSIVE OFFER: Jim Cramer's Protégé, Dave Peltier, only buys Stocks Under $10 that he thinks could potentially double. See what he's trading today with a 14-day FREE pass.
It's unclear how much of the hefty $4,500 price pharmacy benefit managers or insurers will agree to pay to keep Auvi-Q free for most patients.
Other movers included Mannkind, Perrigo and Bristol-Myers Squibb.
Regeneron has faced a lower stock price and patent wrangling. But the stock could be ready to rise again.