What happened Shares of Novavax (NASDAQ: NVAX) were jumping 5.8% at 11:46 a.m. EDT on Wednesday. This marked the second consecutive day of solid gains for the biotech for the same reason: anticipation that problems related to Johnson & Johnson's (NYSE: JNJ) COVID-19 vaccine could bode well for Novavax's prospects. Novavax also announced some management changes after the market closed on Tuesday. So what Novavax has already committed to supplying 100 million doses of COVID-19 vaccine NVX-CoV2373 to the U.S. The biotech also has supply deals in place with other countries for around 200 million doses. It's possible that Novavax could receive more orders if governments are concerned about the safety of J&J's vaccine. Image source: Getty Images. Whether that happens, though, remains to be seen. The U.S. Centers for Disease Control and Prevention (CDC) and Food and Drug Administration (FDA) called for a pause on the use of J&J's COVID-19 vaccine due to reports of blood clotting problems in some who received it. However, these cases were very rare (fewer than 1 in 1 million). The pause is likely to be only temporary. The management changes announced by Novavax probably didn't affect the biotech stock very much, if at all. Novavax reported that it had promoted Gale Smith to senior vice president, discovery and pre-clinical research and chief scientist. It named Troy Morgan senior vice president and chief compliance officer. The company also said that Greg Covino will step down as CFO for personal reasons but will serve as an executive advisor. Now what The main thing to look for with Novavax over the near term is the company's progress toward securing Emergency Use Authorization for NVX-CoV2373. Novavax has already reported positive results from a late-stage study of the vaccine conducted in the U.K. and should soon wrap up a phase 3 study in the U.S. and Mexico. 10 stocks we like better than NovavaxWhen investing geniuses David and Tom Gardner have a stock tip, it can pay to listen. After all, the newsletter they have run for over a decade, Motley Fool Stock Advisor, has tripled the market.* David and Tom just revealed what they believe are the ten best stocks for investors to buy right now... and Novavax wasn't one of them! That's right -- they think these 10 stocks are even better buys. See the 10 stocks *Stock Advisor returns as of February 24, 2021 Keith Speights has no position in any of the stocks mentioned. The Motley Fool recommends Johnson & Johnson. The Motley Fool has a disclosure policy.Source