Aspen Aerogels Inc
ASPN- Exchange
- NYSE
- Industry
- Wholesale-Lumber & Other Construction Materials
- SEC CIK
- 0001145986
In the last 90 days, Aspen Aerogels Inc insiders filed 0 open-market purchases and 1 sale; 179 institutions reported holding it in 13F filings for Q2 2026, worth $466.0M in total; no superinvestor holds it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $58.1M in total
- 1
- 13F holdersQ2 2026, +15 vs. previous quarter
- 179
- 13F valueReported value at the end of Q2 2026
- $466.0M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding ASPN, Q2 2026
No superinvestor reported holding ASPN at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Aspen Aerogels Inc insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 24, 2026 (view filing)8:59 PM ET | Sep 23 | 1 day | Wood River Capital, LLC and 1 otherOther: Former 10% Owner | SSale | −12.3M | $4.73 | −$58.1M | −100.0%0 after | |
| Nov 14, 2025 (view filing) | Nov 13 | 1 day | Young Donald RPresident and CEO | SSale | −56.8K | $3.23 | −$183.6K | −10.3%494.0K after | 10b5-1 |
| Aug 13, 2025 (view filing) | Aug 12-13 | 1 day | Daniel Santhosh PChief Accounting Officer | SSale | −6.41K | $7.38 | −$47.3K | −26.4%17.9K after | 2 lots |
| May 12, 2025 (view filing) | May 12 | Same day | Young Donald RPresident and CEO | PPurchase | +20.0K | $5.35 | +$107.0K | +3.8%550.9K after | |
| Oct 1, 2024 (view filing) | Sep 30 | 1 day | Young Donald RPresident and CEO | SSale | −63.4K | $30.03 | −$1.90M | −11.6%483.6K after | 10b5-1 |
| Aug 28, 2024 (view filing) | Aug 26 | 2 days | Rodriguez Ricardo C.CFO & Treasurer | SSale | −32.5K | $30.14 | −$978.4K | −61.0%20.8K after | 4 lots10b5-1 |
| Aug 19, 2024 (view filing)5:34 PM ET | Aug 19 | Same day | Wood River Capital, LLC and 1 other10% Owner | SSale | −4.14M | $4,491,358,877.56 | −$18,594T | –0 after | DerivativePrice outlier |
| May 29, 2024 (view filing) | May 28-29 | 1 day | Young Donald RPresident and CEO | SSale | −433.7K | $29.29 | −$12.7M | −41.0%622.9K after | 3 lots10b5-1 |
| May 23, 2024 (view filing) | May 22 | 1 day | Kool KathleenDirector | SSale | −4.47K | $27.30 | −$122.0K | −27.7%11.7K after | |
| May 15, 2024 (view filing)6:00 PM ET | May 14 | 1 day | Koch Industries Inc and 1 other10% Owner | SSale | −3.50M | $23.50 | −$82.3M | −22.2%12.3M after |
Top 10 13F holders, Q2 2026
The largest institutional positions in Aspen Aerogels Inc at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Kim, LLC | 12,280,426 | $77.9M | 10.59% | 00.0% | Unchanged |
| BlackRock, Inc. | 5,277,148 | $33.5M | 0.00% | +534,072+11.3% | Added |
| Oaktop Capital Management II, L.P. | 5,168,674 | $32.8M | 1.39% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 3,539,271 | $22.4M | 0.00% | +103,115+3.0% | Added |
| Needham Investment Management LLC | 3,260,800 | $20.7M | 0.62% | −1,257,975−27.8% | Reduced |
| George Kaiser Family Foundation | 3,167,322 | $20.1M | 1.93% | 00.0% | Unchanged |
| State Street Corp | 2,559,495 | $16.2M | 0.00% | +238,768+10.3% | Added |
| American Century Companies Inc | 2,510,042 | $15.9M | 0.01% | +1,262,259+101.2% | Added |
| Jacobs Levy Equity Management, Inc | 2,058,083 | $13.0M | 0.05% | +839,304+68.9% | Added |
| Ameriprise Financial Inc | 1,821,295 | $11.5M | 0.00% | +314,916+20.9% | Added |