Chuck Royce's position in Aspen Aerogels is currently worth $44 Million. That's 0.40% of their equity portfolio (63rd largest holding). The investor owns 2.19% of the outstanding Aspen Aerogels stock. The first Aspen Aerogels trade was made in Q4 2015. Since then Chuck Royce bought shares 24 more times and sold shares on nine occasions. The stake costed the investor $14.9 Million, netting the investor a gain of 194% so far.