Aspen Aerogels Inc (ASPN)

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Hedge Fund Holdings
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No. Hedge Fund Shares Value Activity % Port
1.
Driehaus Capital

Richard Driehaus

2,550,857 $70,633,230 +19% 0.6%
2. 1,703,151 $47,160,251 -13% 2.29%
3. 1,212,097 $33,562,966 -3% 0.3%
4.
Samjo Capital

Andrew N. Wiener

895,775 $24,804,010 -14% 8.55%
5.
Ardsley PartnersCALL

Philip Hempleman

400,000 $11,076,000 1.82%