Thoele Grant Douglas (CIK 2089743) reported 5 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-10). Recent activity: Sell ASPN (590 shares), Buy ASPN (55,298 shares), Sell ASPN (2,368 shares), Buy ASPN (10,273 shares), Buy ASPN (10,273 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-10 | ASPEN AEROGELS INC (ASPN) | CFO & Treasurer | Sell | 590 | $1,900 |
| 2026-03-06 | ASPEN AEROGELS INC (ASPN) | CFO & Treasurer | Buy | 55,298 | $0 |
| 2026-03-06 | ASPEN AEROGELS INC (ASPN) | CFO & Treasurer | Sell | 2,368 | $7,743 |
| 2025-12-19 | ASPEN AEROGELS INC (ASPN) | CFO & Treasurer | Buy | 10,273 | $0 |
| 2025-10-03 | ASPEN AEROGELS INC (ASPN) | CFO & Treasurer | Buy | 10,273 | $0 |
Source: SEC Form 4 filings · as of 2026-03-10