shares of aspen aerogels inc were trading lower in tuesdays afterhours market following news the company is planning public offerings of 225 million of common stock and 150 million of green convertible senior notes due 2027 at 528 pm et shares were trading 248 lower at 1107 the stock finished the days regular session with a 341 loss closing at 1471 the stock touched a 52week low of 1354 on june 16 aspen aerogels has a market capitalization of 54951 million 361 million shares outstanding and a public float of 286 million shares