Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0000834237-21-007023
Filing Date
2021-02-02
Accepted
2021-02-02 15:13:42
Documents
1

Document Format Files

Seq Description Document Type Size
1 us04523y1055_020221.txt SC 13G 11367
  Complete submission text file 0000834237-21-007023.txt   13087
Mailing Address 30 FORBES ROAD BUILDING B NORTHBOROUGH MA 01532
Business Address 30 FORBES ROAD BUILDING B NORTHBOROUGH MA 01532 5086911111
ASPEN AEROGELS INC (Subject) CIK: 0001145986 (see all company filings)

EIN.: 043559972 | Fiscal Year End: 1231
Type: SC 13G | Act: 34 | File No.: 005-88226 | Film No.: 21580862
SIC: 5030 Wholesale-Lumber & Other Construction Materials

Mailing Address 55 EAST 52ND STREET NEW YORK NY 10055
Business Address 55 EAST 52ND STREET NEW YORK NY 10055 212-810-5300
BlackRock Inc. (Filed by) CIK: 0001364742 (see all company filings)

EIN.: 320174431 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G
SIC: 6211 Security Brokers, Dealers & Flotation Companies