ASPN
ASPEN AEROGELS INC · Wholesale Trade · Market cap $447.3M
Insiders sold $58.1M net in the last 90 days ·1 seller, 0 buyers· latest Form 4 filed Sep 25, 2026
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$58.3M
reported sales (SEC code S)
Unique Insiders
2
in the rolling window
Latest filing
Oct 1, 2026
Wood River Capital, LLC
ASPEN AEROGELS INC (ASPN) has 20 SEC Form 4 filings (24 transaction rows) in the rolling window, disclosed by 2 distinct insiders. Most recent filing: Oct 1, 2026.
Inside the rolling window, 2 insiders at ASPEN AEROGELS INC reported no open-market purchases and 2 open-market sales totaling $58.3M. Insiders have net sold $58.1M over the trailing 6 months. The most recent open-market filing is a sale of 12,280,426 shares by Insider Wood River Capital, LLC, dated Sep 23, 2026, worth $58.1M.
- Industry:Chemicals - Specialty
- CEO:Donald R. Young
- Employees:854
- HQ:Northborough, MA, US
- IPO:2014-06-13
| Source | |||||||
|---|---|---|---|---|---|---|---|
Wood River Capital, LLCFirst filing | Former 10% Owner | Sale | 12,280,426 | $58.1M | Sep 25 | +3.3% | SEC ↗ |
Young Donald RFirst filing | President and CEO | Sale | 56,845 | $184K | Nov 14 | +75.0% | SEC ↗ |
Frequently asked questions
How many SEC Form 4 insider filings does ASPN have?
ASPEN AEROGELS INC (ASPN) has 20 SEC Form 4 filings (24 transaction rows) in the rolling 365-day window, disclosed by 2 distinct insiders. Most recent filing: Oct 1, 2026.
When was the most recent SEC Form 4 filing for ASPN?
The most recent Form 4 filing for ASPN on Tracefour is dated Oct 1, 2026.
What is the net insider flow at ASPN over the last 6 months?
Over the trailing 180 days, insiders at ASPN have net sold $58.1M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at ASPN in the current window?
Inside the rolling window, insiders at ASPN bought $0 and sold $58.3M based on SEC Form 4 filings.
Can I get alerts for ASPN insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at ASPEN AEROGELS INC (ASPN). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
ASPEN AEROGELS INC is in the Wholesale Trade sector.