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ASPEN AEROGELS INC
Wholesale-Lumber & Other Construction Materials · DE · CIK 1145986
Aspen Aerogels designs, develops, and manufactures high-performance aerogel insulation for industrial and sustainable markets
red 8-K · 90d
$491M
Market cap
$5.98
Last close
+6.2%
1D
-6.1%
5D
2.0M
Volume
Price · last 39 sessions+54.1%
May 4L $3.88 · H $6.40Jun 29
262
Total filings
May 18, 2026
Last filing
12/31
Fiscal year end
8-KExecutive Change · Shareholder VoteMay 18, 202610-Q10-QMay 8, 20268-KResults of Operations · Reg FD DisclosureMay 7, 20268-KReg FD Disclosure · Company UpdateApr 21, 2026DEFA14ADEFA14AMar 27, 2026DEF 14ADEF 14AMar 27, 202610-K/A10-K/AMar 23, 202610-K10-KMar 13, 20268-KResults of Operations · Reg FD DisclosureFeb 25, 20268-KMaterial Agreement · Reg FD DisclosureDec 18, 202510-Q10-QNov 6, 20258-KResults of Operations · Reg FD DisclosureNov 6, 20258-KExecutive ChangeSep 11, 202510-Q10-QAug 7, 20258-KResults of Operations · Reg FD DisclosureAug 7, 202510-Q10-QMay 8, 20258-KResults of Operations · Reg FD DisclosureMay 8, 20258-KExecutive Change · Shareholder VoteMay 1, 2025DEFA14ADEFA14AMar 17, 2025DEF 14ADEF 14AMar 17, 20258-KExecutive ChangeMar 7, 20258-KExecutive ChangeMar 6, 202510-K10-KFeb 27, 20258-KResults of Operations · Reg FD DisclosureFeb 12, 20258-KCode of EthicsNov 19, 2024SC 13GSC 13GNov 12, 202410-Q10-QNov 7, 20248-KResults of Operations · Reg FD DisclosureNov 6, 20248-KMaterial Agreement · Company UpdateOct 22, 2024424B5424B5Oct 22, 2024424B5424B5Oct 21, 20248-KResults of Operations · Reg FD DisclosureOct 16, 20248-KExecutive ChangeSep 3, 20248-KMaterial Agreement · Agreement TerminatedAug 19, 20248-KExecutive ChangeAug 15, 202410-Q10-QAug 8, 20248-KResults of Operations · Reg FD DisclosureAug 7, 20248-KReg FD DisclosureJun 13, 20248-KShareholder VoteMay 31, 2024DEFA14ADEFA14AMay 13, 2024DEFA14ADEFA14AMay 6, 202410-Q10-QMay 2, 20248-KResults of Operations · Reg FD DisclosureMay 1, 2024DEFA14ADEFA14AApr 10, 2024DEF 14ADEF 14AApr 10, 202410-K10-KMar 7, 20248-KExecutive ChangeMar 7, 20248-KResults of Operations · Reg FD DisclosureFeb 12, 2024SC 13GSC 13GJan 31, 20248-KResults of Operations · Reg FD DisclosureJan 11, 2024424B5424B5Dec 21, 20238-KMaterial Agreement · Company UpdateDec 20, 20238-KReg FD DisclosureDec 5, 20238-KBylaw AmendmentNov 9, 202310-Q10-QNov 2, 20238-KResults of Operations · Reg FD DisclosureNov 1, 20238-KReg FD DisclosureOct 23, 20238-KMaterial AgreementOct 2, 20238-KExecutive ChangeSep 14, 20238-KExecutive ChangeSep 8, 20238-KReg FD Disclosure · Company UpdateSep 5, 202310-Q10-QAug 3, 20238-KResults of Operations · Reg FD DisclosureAug 2, 20238-KAgreement TerminatedJun 15, 20238-KExecutive Change · Bylaw AmendmentJun 1, 202310-Q10-QMay 4, 20238-KResults of Operations · Reg FD DisclosureMay 3, 20238-KReg FD DisclosureApr 20, 2023DEFA14ADEFA14AApr 18, 2023DEF 14ADEF 14AApr 18, 202310-K10-KMar 16, 20238-KResults of Operations · Reg FD DisclosureFeb 15, 20238-KExecutive ChangeJan 5, 20238-KMaterial Agreement · Company UpdateNov 30, 2022424B5424B5Nov 30, 2022424B5424B5Nov 29, 20228-KMaterial Agreement · Agreement TerminatedNov 29, 202210-Q10-QNov 7, 20228-KExecutive ChangeNov 2, 20228-KResults of Operations · Reg FD DisclosureOct 27, 2022
Insider Activity
In the 90 days to Nov 13, 2025: 1 sold $184K.
| Date | Insider | Action | Shares | Price | Value |
|---|---|---|---|---|---|
| Nov 13, 2025 | Young Donald RPresident and CEO | Sell | 56,845 | $3.23 | $184K |
Open-market buys & sells (Form 4, transaction codes P/S). Source: SEC structured insider data.
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