Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0000950170-25-040278
Filing Date
2025-03-17
Accepted
2025-03-17 16:15:06
Documents
3

Document Format Files

Seq Description Document Type Size
1 DEFA14A aspen_defa14a_2025.htm DEFA14A 20907
2 GRAPHIC img157914262_0.jpg GRAPHIC 1162648
3 GRAPHIC img157914262_1.jpg GRAPHIC 790934
  Complete submission text file 0000950170-25-040278.txt   2712398
Mailing Address 30 FORBES ROAD BUILDING B NORTHBOROUGH MA 01532
Business Address 30 FORBES ROAD BUILDING B NORTHBOROUGH MA 01532 5086911111
ASPEN AEROGELS INC (Filer) CIK: 0001145986 (see all company filings)

EIN.: 043559972 | State of Incorp.: DE | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 001-36481 | Film No.: 25744595
SIC: 5030 Wholesale-Lumber & Other Construction Materials
(CF Office: 07 Trade & Services)