ISSUER PROFILE · CIK 0001145986 · CUSIP 04523Y105
ASPEN AEROGELS, INC.ASPN
3 13D/G filings
2 distinct filers
1 insider transactions (365d)
Cross-Reference Snapshot
Activist filings
3
1 SCHEDULE 13G · 1 SCHEDULE 13D/A · 1 SC
Distinct filers
2
multi-activist cluster
Insiders (365d)
1
0 buys · 1 sales
Latest short DTC
7.64
as of 2026-10-15
13D/G Filings Timeline · 3 total
Form 4 Insider Transactions · last 365d
| Date | Insider | Role | Type | Shares | Price | Value |
|---|
| 2026-09-23 |
Wood River Capital, LLC |
10%+ |
Sale |
12,280,426 |
$4.73 |
$58.09M |
FINRA Short Interest History
| Settlement | Short Interest | Days to Cover | % Δ vs prior |
|---|
| 2026-10-15 |
6,145,901 |
7.64 |
+0.7% |
| 2026-09-30 |
6,101,632 |
5.24 |
-32.7% |
| 2026-09-15 |
9,064,528 |
13.93 |
+7.9% |
| 2026-08-31 |
8,403,741 |
10.89 |
+3.9% |
| 2026-08-14 |
8,084,832 |
3.22 |
-8.6% |
| 2026-07-31 |
8,849,264 |
8.96 |
+7.6% |
| 2026-07-15 |
8,223,398 |
8.41 |
+15.8% |
| 2026-06-30 |
7,102,074 |
3.76 |
-0.1% |
| 2026-06-15 |
7,110,861 |
5.78 |
+0.3% |
| 2026-05-29 |
7,089,306 |
4.62 |
-8.4% |
| 2026-05-15 |
7,736,011 |
3.12 |
-3.3% |
| 2026-04-30 |
7,999,553 |
5.02 |
+14.0% |
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