<SEC-DOCUMENT>0001172661-25-002177-index.html : 20250515
<SEC-HEADER>0001172661-25-002177.hdr.sgml : 20250515
<ACCEPTANCE-DATETIME>20250515141056
ACCESSION NUMBER:		0001172661-25-002177
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250515
DATE AS OF CHANGE:		20250515

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ASPEN AEROGELS INC
		CENTRAL INDEX KEY:			0001145986
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-LUMBER & OTHER CONSTRUCTION MATERIALS [5030]
		ORGANIZATION NAME:           	07 Trade & Services
		EIN:				043559972
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-88226
		FILM NUMBER:		25951354

	BUSINESS ADDRESS:	
		STREET 1:		30 FORBES ROAD
		STREET 2:		BUILDING B
		CITY:			NORTHBOROUGH
		STATE:			MA
		ZIP:			01532
		BUSINESS PHONE:		5086911111

	MAIL ADDRESS:	
		STREET 1:		30 FORBES ROAD
		STREET 2:		BUILDING B
		CITY:			NORTHBOROUGH
		STATE:			MA
		ZIP:			01532

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			OAKTOP CAPITAL MANAGEMENT II, L.P.
		CENTRAL INDEX KEY:			0001550660
		ORGANIZATION NAME:           	
		EIN:				272166726
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		ONE MAIN STREET, SUITE 202
		CITY:			CHATHAM
		STATE:			NJ
		ZIP:			07928
		BUSINESS PHONE:		973-635-3854

	MAIL ADDRESS:	
		STREET 1:		ONE MAIN STREET, SUITE 202
		CITY:			CHATHAM
		STATE:			NJ
		ZIP:			07928
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
</SEC-DOCUMENT>