GAGNON SECURITIES LLC

Holdings History for ASPEN AEROGELS INC - Common Stock, par value $0.00001 per share (ASPN)

Symbol: ASPN on NYSE
Investment type: Equity / Common Stock, par value $0.00001 per share

Shares, Excluding Options vs Price

Value, Excluding Options

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
31 Dec 2025	0.65%	-0.36%	$3,207,092	1,133,248	-621,585	-35%	$2.83	Q4 2025
30 Sep 2025	2.5%	-0.2%	$12,213,638	1,754,833	-144,275	-7.6%	$6.96	Q3 2025
30 Jun 2025	2.3%	+2.3%	$11,242,719	1,899,108	+1,899,108	NEW	$5.92	Q2 2025
31 Dec 2018		-0.04%	$0	0	-39,240	-100%	$3.51	Q4 2018
30 Sep 2018	0.04%	-0%	$179,000	39,240	-109	-0.28%	$4.56	Q3 2018
30 Jun 2018	0.06%	-0%	$193,000	39,349	-369	-0.93%	$4.90	Q2 2018
31 Mar 2018	0.06%	+0.06%	$170,000	39,718	+39,718	NEW	$4.28	Q1 2018

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.