<SEC-DOCUMENT>0001193125-23-105036-index.html : 20230418
<SEC-HEADER>0001193125-23-105036.hdr.sgml : 20230418
<ACCEPTANCE-DATETIME>20230418162551
ACCESSION NUMBER:		0001193125-23-105036
CONFORMED SUBMISSION TYPE:	ARS
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20221231
FILED AS OF DATE:		20230418
DATE AS OF CHANGE:		20230418
EFFECTIVENESS DATE:		20230418

FILER:

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

	FILING VALUES:
		FORM TYPE:		ARS
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36481
		FILM NUMBER:		23827153

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>ARS
<SEQUENCE>1
<FILENAME>d641006dars.pdf
<DESCRIPTION>ARS
<TEXT>
Document 1 - file: d641006dars.pdf

</DOCUMENT>
</SEC-DOCUMENT>