As of the latest Form 4 filed Jun 26, 2026.
What Aspen Aerogels Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Newest filing first — the 20 most recent filings for ASPN.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-26 | 2026-06-23 | NOGLOWS WILLIAM P Director | MExercise | +14.8K | $4.75 | $70.3K | No | Form 4 ↗ |
| 2026-05-14 | 2026-05-13 | Mitchell Steven R Director | AAward | +10.4K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-14 | 2026-05-13 | SWEETNAM JAMES E Director | AAward | +10.4K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-14 | 2026-05-13 | NOGLOWS WILLIAM P Director | AAward | +10.4K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-14 | 2026-05-13 | Kool Kathleen Director | AAward | +10.4K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-14 | 2026-05-13 | Robinson Cari Director | AAward | +10.4K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-10 | 2026-03-08 | Young Donald R President and CEO | FTax | −4.28K | $3.22 | $13.8K | No | Form 4 ↗ |
| 2026-03-10 | 2026-03-08 | Whitaker Corby C Chief Commercial Officer | FTax | −1.92K | $3.22 | $6.20K | No | Form 4 ↗ |
| 2026-03-10 | 2026-03-08 | Thoele Grant Douglas CFO & Treasurer | FTax | −590.00 | $3.22 | $1.90K | No | Form 4 ↗ |
| 2026-03-10 | 2026-03-08 | Landes Gregg Chief Operating Officer | FTax | −1.92K | $3.22 | $6.20K | No | Form 4 ↗ |
| 2026-03-06 | 2026-03-05 | Young Donald R President and CEO | FTax | −8.62K | $3.27 | $28.2K | No | Form 4 ↗ |
| 2026-03-06 | 2026-03-05 | Landes Gregg SVP, Operations and Strat Deve | FTax | −3.81K | $3.27 | $12.5K | No | Form 4 ↗ |
| 2026-03-06 | 2026-03-05 | Whitaker Corby C SVP, Sales and Marketing | FTax | −3.91K | $3.27 | $12.8K | No | Form 4 ↗ |
| 2026-03-06 | 2026-03-05 | Daniel Santhosh P Chief Accounting Officer | FTax | −986.00 | $3.27 | $3.22K | No | Form 4 ↗ |
| 2026-03-06 | 2026-03-05 | Thoele Grant Douglas CFO & Treasurer | FTax | −2.37K | $3.27 | $7.74K | No | Form 4 ↗ |
| 2026-03-06 | 2026-03-04 | Young Donald R President and CEO | AAward | +157K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-06 | 2026-03-04 | Landes Gregg SVP, Operations and Strat Deve | AAward | +57.5K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-06 | 2026-03-04 | DEEGAN GLENN E. CAO, GC & Corp Secretary | AAward | +55.5K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-06 | 2026-03-04 | Whitaker Corby C SVP, Sales and Marketing | AAward | +57.5K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-06 | 2026-03-04 | Thoele Grant Douglas CFO & Treasurer | AAward | +55.3K | $0.00 | $0.00 | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also ASPN’s full analysis or the market-wide insider trading feed. The tabs above jump to ASPN’s other SEC data.
Source: SEC Form 4 filings for ASPN, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
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