15 insiders reported 63 Form 4 transactions for ASPEN AEROGELS INC (ASPN) over the past 18 months (most recent 2026-06-26). Recent activity: NOGLOWS WILLIAM P (Director) Buy 14,799 shares, SWEETNAM JAMES E (Director) Buy 10,370 shares, NOGLOWS WILLIAM P (Director) Buy 10,370 shares, Mitchell Steven R (Director) Buy 10,370 shares, Kool Kathleen (Director) Buy 10,370 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-26 | NOGLOWS WILLIAM P | Director | Buy | 14,799 | $70,295 |
| 2026-05-14 | SWEETNAM JAMES E | Director | Buy | 10,370 | $0 |
| 2026-05-14 | NOGLOWS WILLIAM P | Director | Buy | 10,370 | $0 |
| 2026-05-14 | Mitchell Steven R | Director | Buy | 10,370 | $0 |
| 2026-05-14 | Kool Kathleen | Director | Buy | 10,370 | $0 |
| 2026-05-14 | Robinson Cari | Director | Buy | 10,370 | $0 |
| 2026-03-10 | Young Donald R | President and CEO | Sell | 4,275 | $13,766 |
| 2026-03-10 | Landes Gregg | Chief Operating Officer | Sell | 1,924 | $6,195 |
| 2026-03-10 | Whitaker Corby C | Chief Commercial Officer | Sell | 1,924 | $6,195 |
| 2026-03-10 | Thoele Grant Douglas | CFO & Treasurer | Sell | 590 | $1,900 |
| 2026-03-06 | Young Donald R | President and CEO | Sell | 8,618 | $28,181 |
| 2026-03-06 | Young Donald R | President and CEO | Buy | 156,716 | $0 |
| 2026-03-06 | Daniel Santhosh P | Chief Accounting Officer | Sell | 986 | $3,224 |
| 2026-03-06 | Thoele Grant Douglas | CFO & Treasurer | Buy | 55,298 | $0 |
| 2026-03-06 | Thoele Grant Douglas | CFO & Treasurer | Sell | 2,368 | $7,743 |
| 2026-03-06 | DEEGAN GLENN E. | CAO, GC & Corp Secretary | Buy | 55,503 | $0 |
| 2026-03-06 | Whitaker Corby C | SVP, Sales and Marketing | Buy | 57,462 | $0 |
| 2026-03-06 | Whitaker Corby C | SVP, Sales and Marketing | Sell | 3,907 | $12,776 |
| 2026-03-06 | Landes Gregg | SVP, Operations and Strat Deve | Buy | 57,462 | $0 |
| 2026-03-06 | Landes Gregg | SVP, Operations and Strat Deve | Sell | 3,814 | $12,472 |
| 2025-12-19 | Thoele Grant Douglas | CFO & Treasurer | Buy | 10,273 | $0 |
| 2025-11-14 | Young Donald R | President and CEO | Sell | 56,845 | $183,609 |
| 2025-10-03 | Thoele Grant Douglas | CFO & Treasurer | Buy | 10,273 | $0 |
| 2025-10-02 | DEEGAN GLENN E. | CAO, GC & Corp Secretary | Buy | 11,673 | $0 |
| 2025-09-15 | Daniel Santhosh P | Chief Accounting Officer | Sell | 1,563 | $10,300 |
Source: SEC Form 4 filings · as of 2026-06-26