ASPEN AEROGELS INC (ASPN) Insider Trading & SEC Filings

Updated Jul 16, 2026 · Last SEC filing 2026-06-26

ASPEN AEROGELS INC (ASPN) has filed 6 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-26. 3 Form 8-K material event filings were reported by ASPN in the last 90 days. InsiderAlpha tracks every ASPN SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About ASPEN AEROGELS INC (ASPN)

SIC classificationWholesale-Lumber & Other Construction Materials (SIC 5030)
SEC CIK0001145986

90-Day SEC Filing Activity

Form 4 filings (90d)6
Form 8-K filings (90d)3
Latest Form 4 filing2026-06-26

Recent ASPN Insider Transactions (Form 4)

DateInsiderRoleTransactionSharesPriceValueFiling
NOGLOWS WILLIAM PDirectorM — Option exercise14.8K$4.75$70KSEC
Robinson CariInsiderA — Grant or award10.4K$0.00—SEC
Mitchell Steven RInsiderA — Grant or award10.4K$0.00—SEC
SWEETNAM JAMES EInsiderA — Grant or award10.4K$0.00—SEC
NOGLOWS WILLIAM PInsiderA — Grant or award10.4K$0.00—SEC
Kool KathleenInsiderA — Grant or award10.4K$0.00—SEC
Whitaker Corby CChief Commercial OfficerF — Tax withholding / forfeiture1.9K$3.22$6KSEC
Landes GreggChief Operating OfficerF — Tax withholding / forfeiture1.9K$3.22$6KSEC
Thoele Grant DouglasCFO & TreasurerF — Tax withholding / forfeiture590$3.22$2KSEC
Young Donald RPresident and CEOF — Tax withholding / forfeiture4.3K$3.22$14KSEC
Whitaker Corby CSVP, Sales and MarketingF — Tax withholding / forfeiture3.9K$3.27$13KSEC
Young Donald RPresident and CEOF — Tax withholding / forfeiture8.6K$3.27$28KSEC
Landes GreggSVP, Operations and Strat DeveF — Tax withholding / forfeiture3.8K$3.27$12KSEC
Daniel Santhosh PChief Accounting OfficerF — Tax withholding / forfeiture986$3.27$3KSEC
Thoele Grant DouglasCFO & TreasurerF — Tax withholding / forfeiture2.4K$3.27$8KSEC

All transactions sourced from SEC EDGAR Form 4 filings for ASPEN AEROGELS INC (ASPN). Updated in real time as new filings are submitted to the SEC.

Most-Active ASPN Insiders — Last 90 Days

InsiderForm 4 filingsTotal transaction value
NOGLOWS WILLIAM P4$70K
Mitchell Steven R2—
Kool Kathleen2—
Robinson Cari2—
SWEETNAM JAMES E2—

Recent ASPN Form 8-K Material Events

Recent Insider Filings

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in ASPN insider filings:

POpen-market purchase by the insider
SOpen-market sale by the insider
AGrant, award, or other acquisition from the issuer
MExercise or conversion of derivative security (e.g. options)
FPayment of exercise price or tax liability via share withholding
GBona-fide gift of securities
DDisposition to the issuer (e.g. share buyback participation)
JOther acquisition or disposition
XExercise of in-the-money or at-the-money derivative security
CConversion of derivative security
VTransaction voluntarily reported earlier than required

ASPN Insider Trading — FAQ

What is the latest insider trade for ASPN?
ASPEN AEROGELS INC (ASPN) had 6 insider filings in the last 90 days, with the most recent on 2026-06-26. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying ASPN stock?
0 insider purchases of ASPN were filed in the last 90 days.
How many insiders are selling ASPN stock?
0 insider sales of ASPN were filed in the last 90 days.
Where can I see ASPN SEC filings (Form 4, 10-K, 10-Q, 8-K)?
InsiderAlpha aggregates every ASPN SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

Learn More

Open the live ASPN dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.