ASPEN AEROGELS INC's ticker is ASPN and the CUSIP is 04523Y105. A total of 44 filers reported holding ASPEN AEROGELS INC in Q1 2017. The put-call ratio across all filers is - and the average weighting 0.4%.
Quarter-by-quarter ownership
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| GEORGE KAISER FAMILY FOUNDATION | 3,167,322 | $52,863,000 | 13.99% |
| OAKTOP CAPITAL MANAGEMENT II, L.P. | 2,939,758 | $49,065,000 | 8.64% |
| Samjo Capital LLC | 432,657 | $7,221,000 | 6.16% |
| AIGH Capital Management LLC | 655,819 | $10,945,000 | 4.45% |
| Harvey Partners, LLC | 347,500 | $5,799,000 | 4.03% |
| Telemark Asset Management, LLC | 2,250,000 | $37,553,000 | 3.89% |
| Cowen Prime Services LLC | 467,614 | $7,804,000 | 3.46% |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 931,400 | $15,545,000 | 2.61% |
| Worth Venture Partners, LLC | 169,041 | $2,821,000 | 2.23% |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 585,148 | $9,766,000 | 1.21% |