Aspen Aerogels (ASPN)
Makes aerogel materials for EV battery barriers and energy-industrial insulation.
$4.92
Pre-market0.00 (0.00%)
At close$4.92(+1.65%)
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Breakdown13F · 13D/G · Form 4
| Institutions175 holders · as of Mar 31, 2026 | 83.62% | 69.30M shares | |
| Insiders15 holders · as of Jun 26, 2026 | 2.01% | 1.66M shares | |
| Strategic holders1 holder · as of Feb 13, 2026 | 5.25% | 4.35M shares | |
| Otherremainder | 9.12% | 7.56M shares |
82.88M company shares as of Sep 3, 2026 · institutions as of Mar 31, 2026 · holders as of their latest filing
Institutions13F, as of Mar 31, 2026
175 holders · 69.30M shares · 34 new positions · 79 increased · 58 reduced · 51 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Kim, LLC | 12.28M | 14.82% | 0 | May 12, 2026 |
| Oaktop Capital Management Ii, L.P. | 5.17M | 6.24% | +774.1K | May 14, 2026 |
| BlackRock, Inc. | 4.74M | 5.72% | −186.2K | May 13, 2026 |
| Needham Investment Management LLC | 4.52M | 5.45% | +167.1K | May 15, 2026 |
| Vanguard Capital Management LLC | 3.44M | 4.15% | +3.44Mnew | May 15, 2026 |
| George Kaiser Family Foundation | 3.17M | 3.82% | 0 | May 14, 2026 |
| State Street Corp | 2.32M | 2.80% | −180.7K | May 15, 2026 |
| Invesco Ltd. | 2.30M | 2.77% | −1.83M | May 12, 2026 |
Ownership statements13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Oaktop Capital Management II, L.P. | 5.35% | 4.39M | 13G | May 15, 2025 ↗ |
| Needham Investment Management L.L.C. | 5.30% | 4.35M | 13G | Feb 13, 2026 ↗ |
Insider tradesForm 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Nov 13, 2025 | Donald R. Youngdirector, officer: President and CEO | Sale | 56,845 | $3.23 | 494,011 |
CongressHouse and Senate disclosures
Not reported.