ASPEN AEROGELS INC Insider Trading Activity
Every SEC Form 4 insider transaction reported for ASPEN AEROGELS INC (ASPN), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are ASPN insiders buying or selling?
In the last 12 months, ASPEN AEROGELS INC insiders reported 0 open-market purchases ($0) and 2 sales ($58.3M) — net selling of $58.3M. Since May 2019, Trabud has recorded 46 Form 4 filings for ASPN: 17 buys ($155.3M) and 29 sells ($174.2M).
Source: SEC EDGAR Form 4
Key Statistics (May 2019 – Sep 25, 2026)
Total Form 4 filings
46
SEC EDGAR
Insider filers
14
Insider buys (17)
$155.3M
Insider sells (29)
$174.2M
Insider sentiment
Net sellingNet insider flow of $18.8M in net selling since May 2019, and $58.3M in net selling over the last 12 months.
Recent ASPN insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Sep 25, 2026 | Wood River Capital, LLC | Other | Sale | 12.3M | $4.73 | $58.1M | SEC ↗ |
| Nov 14, 2025 | Donald R Young | President and CEO | Sale | 56.8K | $3.23 | $183.6K | SEC ↗ |
| Aug 13, 2025 | Santhosh P Daniel | Chief Accounting Officer | Sale | 6.4K | $7.38 | $47.3K | SEC ↗ |
| May 13, 2025 | Donald R Young | President and CEO | Purchase | 20.0K | $5.35 | $107.0K | SEC ↗ |
| Oct 1, 2024 | Donald R Young | President and CEO | Sale | 63.4K | $30.03 | $1.9M | SEC ↗ |
| Aug 28, 2024 | Ricardo C. Rodriguez | CFO & Treasurer | Sale | 32.5K | $30.14 | $978.4K | SEC ↗ |
| May 30, 2024 | Donald R Young | President and CEO | Sale | 433.7K | $29.29 | $12.7M | SEC ↗ |
| May 23, 2024 | Kathleen Kool | Director | Sale | 4.5K | $27.30 | $122.0K | SEC ↗ |
| May 15, 2024 | Wood River Capital, LLC | 10% Owner | Sale | 3.5M | $23.50 | $82.3M | SEC ↗ |
| May 14, 2024 | Keith L Schilling | SVP, Technology | Sale | 20.0K | $26.84 | $536.9K | SEC ↗ |
| May 8, 2024 | Corby C Whitaker | SVP, Sales and Marketing | Sale | 55.2K | $25.01 | $1.4M | SEC ↗ |
| May 8, 2024 | Gregg Landes | SVP, Operations and Strat Deve | Sale | 48.4K | $25.39 | $1.2M | SEC ↗ |
| Nov 20, 2023 | Gregg Landes | SVP, Operations and Strat Deve | Sale | 155 | $11.01 | $1.7K | SEC ↗ |
| Sep 8, 2023 | Steven R Mitchell | Director | Purchase | 7.5K | $6.50 | $49.0K | SEC ↗ |
| Sep 6, 2023 | Steven R Mitchell | Director | Purchase | 50.0K | $6.17 | $308.5K | SEC ↗ |
| Aug 22, 2023 | Mark L Noetzel | Director | Purchase | 4.0K | $5.65 | $22.6K | SEC ↗ |
| Aug 8, 2023 | Donald R Young | President and CEO | Purchase | 25.0K | $6.83 | $170.7K | SEC ↗ |
| Dec 7, 2022 | James E Sweetnam | Director | Purchase | 2.7K | $11.30 | $30.5K | SEC ↗ |
| Dec 7, 2022 | Wood River Capital, LLC | 10% Owner | Purchase | 10.5M | $9.50 | $100.0M | SEC ↗ |
| May 12, 2022 | Donald R Young | President and CEO | Purchase | 5.0K | $14.63 | $73.2K | SEC ↗ |
| Mar 30, 2022 | KOCH INDUSTRIES INC | 10% Owner | Purchase | 1.8M | $27.90 | $50.0M | SEC ↗ |
| Mar 23, 2022 | Robert M. Gervis | Director | Purchase | 135.9K | $33.12 | $4.5M | SEC ↗ |
| Dec 1, 2021 | Kelley Conte | Vice President,Human Resources | Sale | 20.0K | $56.02 | $1.1M | SEC ↗ |
| Nov 10, 2021 | Corby C Whitaker | SVP, Sales and Marketing | Sale | 24.7K | $57.73 | $1.4M | SEC ↗ |
| Nov 4, 2021 | Donald R Young | President and CEO | Sale | 108.3K | $52.37 | $5.7M | SEC ↗ |
Showing the 25 most recent of 46 Form 4 filings for ASPEN AEROGELS INC.
Most active ASPN insiders
- Donald R Young14 filings
- Corby C Whitaker9 filings
- Gregg Landes5 filings
- Kelley Conte5 filings
- Wood River Capital, LLC3 filings
Ask anything about ASPN insider activity
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Open the AI agentASPN insider trading FAQ
Are ASPEN AEROGELS INC insiders buying or selling?
In the last 12 months, ASPEN AEROGELS INC insiders reported 0 open-market purchases ($0) and 2 sales ($58.3M) — net selling of $58.3M. Since May 2019, Trabud has recorded 46 Form 4 filings for ASPN: 17 buys ($155.3M) and 29 sells ($174.2M). Over the full record that is net selling of $18.8M.
How many insiders trade ASPN stock?
14 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for ASPEN AEROGELS INC. The most recent filing was accepted on Sep 25, 2026.
Where does Trabud get ASPN insider trading data?
All ASPN insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.