NVAX - hesse, I'm not sure if you saw this or not, so just in case:
Excerpt: One of our favorite insider buying markers is cluster buying. That's when multiple executives and directors at the company decide to buy at the same time. Last week four members of the NVAX team bought a total of 90,000 shares valued at $392,199, which puts the dollar cost average of the purchases at $4.36; slightly lower than today's price.