ASPEN AEROGELS INC ASPN
$5.58
-5.9% 52w: $2.57 – $8.82
Latest 13F among current holders filed 11 days ago (Jun 24, 2026)
Price — last 12 months
research preview data2.575.708.82
Jun 20, 2025 Jul 2, 2026
Institutional holders
166
-17 QoQ
13F value
$236.7M
+18.8% QoQ
Smart-money holders
6
signal tier ≥ 2
New smart buyers
0
Q1 2026
Options barometer
3.3×
$2.7M calls / $815K puts
Institutional value by quarter
Number of holders
Who owns ASPN?
Q1 2026 filings| Fund | Type | Shares | Value | % of fund | Change |
|---|---|---|---|---|---|
| KIM, LLC | Other | 12.3M | $42.0M | 13.1% | Held |
| OAKTOP CAPITAL MANAGEMENT II, L.P. ★3 | Fundamental concentrated | 5.2M | $17.7M | 1.3% | +17.6% |
| BlackRock, Inc. | Index provider | 4.7M | $16.2M | 0.0% | -3.8% |
| NEEDHAM INVESTMENT MANAGEMENT LLC | Other | 4.5M | $15.5M | 0.8% | +3.8% |
| VANGUARD CAPITAL MANAGEMENT LLC | Diversified mechanical | 3.4M | $11.8M | 0.0% | — |
| George Kaiser Family Foundation ★3 | Fundamental concentrated | 3.2M | $10.8M | 1.2% | Held |
| STATE STREET CORP | Index provider | 2.3M | $7.9M | 0.0% | -7.2% |
| Invesco Ltd. | Index provider | 2.3M | $7.9M | 0.0% | -44.4% |
| GAGNON SECURITIES LLC ★2 | Fundamental diversified | 1.9M | $6.4M | 1.5% | +64.3% |
| RICE HALL JAMES & ASSOCIATES, LLC | Other | 1.6M | $5.3M | 0.3% | +9.2% |
| GEODE CAPITAL MANAGEMENT, LLC | Index provider | 1.5M | $5.3M | 0.0% | -3.8% |
| AMERIPRISE FINANCIAL INC | Bank broker | 1.5M | $5.2M | 0.0% | +9.3% |
| MILLENNIUM MANAGEMENT LLC | Multistrat pod | 1.4M | $4.8M | 0.0% | +61.3% |
| MARSHALL WACE, LLP | Quant stat arb | 1.3M | $4.3M | 0.0% | +127.9% |
| DIMENSIONAL FUND ADVISORS LP | Quant stat arb | 1.3M | $4.3M | 0.0% | -37.3% |
| AMERICAN CENTURY COMPANIES INC | Diversified mechanical | 1.2M | $4.3M | 0.0% | +7.8% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Other | 1.2M | $4.2M | 0.0% | +769.9% |
| Telemark Asset Management, LLC ★2 | Fundamental diversified | 1.0M | $3.4M | 0.3% | Held |
| ROYCE & ASSOCIATES LP | Other | 986.5K | $3.4M | 0.0% | New |
| GOLDMAN SACHS GROUP INC | Bank broker | 899.5K | $3.1M | 0.0% | -30.5% |
| JPMORGAN CHASE & CO | Bank broker | 965.5K | $3.1M | 0.0% | -34.9% |
| HRT FINANCIAL LP | Diversified mechanical | 870.4K | $3.0M | 0.0% | New |
| D. E. Shaw & Co., Inc. | Quant stat arb | 833.6K | $2.9M | 0.0% | +3490.4% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Diversified mechanical | 716.7K | $2.5M | 0.0% | — |
| BNP PARIBAS FINANCIAL MARKETS | Bank broker | 697.9K | $2.4M | 0.0% | +1.0% |
| Samjo Management, LLC ★3 | Fundamental concentrated | 645.6K | $2.2M | 1.0% | -19.1% |
| CITADEL ADVISORS LLC | Multistrat pod | 581.2K | $2.0M | 0.0% | -32.9% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Index provider | 556.7K | $1.9M | 0.0% | +3.0% |
| AQR CAPITAL MANAGEMENT LLC | Quant stat arb | 526.1K | $1.8M | 0.0% | +42.2% |
| NORTHERN TRUST CORP | Index provider | 523.4K | $1.8M | 0.0% | -2.9% |
| VANGUARD FIDUCIARY TRUST CO | Diversified mechanical | 454.4K | $1.6M | 0.0% | — |
| FEDERATED HERMES, INC. | Diversified mechanical | 450.0K | $1.5M | 0.0% | -20.3% |
| Palogic Value Management, L.P. | Other | 450.0K | $1.5M | 0.7% | -14.3% |
| TWO SIGMA INVESTMENTS, LP | Quant stat arb | 441.4K | $1.5M | 0.0% | -41.7% |
| DEUTSCHE BANK AG\ | Bank broker | 359.5K | $1.2M | 0.0% | +61.2% |
| ALGERT GLOBAL LLC | Diversified mechanical | 326.4K | $1.1M | 0.0% | +484.6% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Market maker | 274.3K | $938K | 0.0% | +43.5% |
| Point72 Asset Management, L.P. | Multistrat pod | 256.6K | $878K | 0.0% | New |
| BANK OF AMERICA CORP /DE/ | Bank broker | 241.0K | $824K | 0.0% | -68.0% |
| CITIGROUP INC | Bank broker | 233.7K | $799K | 0.0% | -2.1% |
| XTX Topco Ltd | Market maker | 201.4K | $689K | 0.0% | -0.3% |
| UBS Group AG | Bank broker | 189.2K | $647K | 0.0% | -40.0% |
| MORGAN STANLEY | Bank broker | 188.3K | $644K | 0.0% | -45.8% |
| JANE STREET GROUP, LLC | Market maker | 187.9K | $642K | 0.0% | -35.9% |
| Bank of New York Mellon Corp | Diversified mechanical | 185.7K | $635K | 0.0% | -5.7% |
| FIRST TRUST ADVISORS LP | Index provider | 181.2K | $620K | 0.0% | -7.8% |
| IRONWOOD INVESTMENT MANAGEMENT LLC | Other | 166.6K | $570K | 0.2% | +30.7% |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | Diversified mechanical | 157.4K | $538K | 0.0% | Held |
| TUDOR INVESTMENT CORP ET AL | Quant stat arb | 151.1K | $517K | 0.0% | +90.8% |
| Inspire Investing, LLC | Other | 151.0K | $516K | 0.0% | -9.5% |
Exits are not a bearish signal: our backtest shows stocks specialists exit keep outperforming for 3+ quarters — selling usually means profit-taking, not a forecast.
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