PERRITT CAPITAL MANAGEMENT INC

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 Mar 2019		-0.16%	$0	0	-200,000	-100%	$3.51	Q1 2019
31 Dec 2018	0.16%	0%	$426,000	200,000	0		$2.13	Q4 2018
30 Sep 2018	0.27%	0%	$914,000	200,000	0		$4.57	Q3 2018
30 Jun 2018	0.28%	0%	$980,000	200,000	0		$4.90	Q2 2018
31 Mar 2018	0.34%	0%	$994,000	200,000	0		$4.97	Q1 2018
31 Dec 2017	0.27%	-0.3%	$976,000	200,000	-218,663	-52%	$4.88	Q4 2017
30 Sep 2017	0.48%	0%	$1,821,000	418,663	0		$4.35	Q3 2017
30 Jun 2017	0.49%	0%	$1,863,000	418,663	0		$4.45	Q2 2017
31 Mar 2017	0.44%	+0.31%	$1,737,000	418,663	+292,494	+232%	$4.15	Q1 2017
31 Dec 2016	0.13%	+0.13%	$521,000	126,169	+126,169	NEW	$4.13	Q4 2016

* 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.