Aspen Aerogels Ownership | Who Owns Aspen Aerogels?
Aspen Aerogels Ownership Summary
Aspen Aerogels is owned by 89.27% institutional investors, 16.20% insiders. Kim is the largest institutional shareholder, holding 14.86% of ASPN shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 3.19% of its assets in Aspen Aerogels shares.
ASPN Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Aspen Aerogels | 89.27% | 16.20% | -5.47% |
| Sector | Basic Materials Stocks | 58.82% | 12.62% | 28.56% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Kim | 12.28M | 14.86% | $42.00M |
| Oaktop capital management ii | 5.17M | 6.25% | $17.68M |
| Blackrock funding, inc. /de | 4.74M | 5.74% | $16.22M |
| Vanguard group | 4.69M | 5.69% | $13.26M |
| Needham investment management | 4.52M | 5.47% | $15.45M |
| George kaiser family foundation | 3.17M | 3.83% | $10.83M |
| State street | 2.32M | 2.81% | $7.94M |
| Invesco | 2.30M | 2.78% | $7.86M |
| Gagnon securities | 1.86M | 2.25% | $6.37M |
| Rice hall james & associates | 1.55M | 1.88% | $5.31M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Kim | 12.28M | 4.30% | $42.00M |
| Gagnon securities | 1.86M | 1.47% | $6.37M |
| Oaktop capital management ii | 5.17M | 1.32% | $17.68M |
| George kaiser family foundation | 3.17M | 1.23% | $10.83M |
| Firsthand capital management | 125.00K | 0.91% | $427.50K |
| Needham investment management | 4.52M | 0.79% | $15.45M |
| Palogic value management | 450.00K | 0.65% | $1.54M |
| Mesirow institutional investment management | 488.60K | 0.45% | $5.80M |
| Telemark asset management | 1.00M | 0.32% | $3.42M |
| Rice hall james & associates | 1.55M | 0.30% | $5.31M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Jacobs levy equity management | 1.22M | 0.02% | 1.08M |
| Royce & associates lp | 986.51K | 0.03% | 986.51K |
| D. e. shaw | 833.57K | 0.00% | 810.36K |
| Oaktop capital management ii | 5.17M | 1.32% | 774.15K |
| Gagnon securities | 1.86M | 1.47% | 728.60K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Driehaus capital management | - | - | -2.55M |
| Invesco | 2.30M | 0.00% | -1.83M |
| Encompass capital advisors | - | - | -1.70M |
| Loomis sayles & co l p | - | - | -1.62M |
| Penn capital management company | - | - | -1.04M |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Royce & associates lp | 986.51K | 0.03% | 986.51K | $3.37M |
| Vanguard fiduciary trust | 454.40K | 0.00% | 454.40K | $1.55M |
| Balyasny asset management | 149.37K | 0.00% | 149.37K | $510.86K |
| Atom investors lp | 82.65K | 0.04% | 82.65K | $575.23K |
| Bridgeway capital management | 75.00K | 0.01% | 75.00K | $256.50K |
Sold Out
| Holder | Change |
|---|---|
| Tfc financial management | -2.00 |
| Creekmur asset management | -3.00 |
| Skopos labs | -5.00 |
| Federation des caisses desjardins du quebec | -15.00 |
| Capital performance advisors llp | -15.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | 189 | 8.00% | 73,997,615 | 6.77% | 89 | 1.27% | 102 | 29.11% | 46 | -20.69% |
| Mar 31, 2026 | 170 | -11.46% | 69,055,768 | -1.49% | 83 | 1.15% | 77 | -12.50% | 55 | -14.06% |
| Dec 31, 2025 | 47 | -78.14% | 20,590,202 | -71.17% | 24 | 0.33% | 22 | -80.70% | 15 | -72.73% |
| Sep 30, 2025 | 73 | -62.94% | 15,786,490 | -77.92% | 19 | 0.25% | 39 | -60.20% | 15 | -74.58% |
| Jun 30, 2025 | 196 | -15.88% | 71,447,619 | 0.55% | 86 | 1.16% | 98 | -20.97% | 59 | -14.49% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 2.64M | 3.19% | 76.70K |
| Vanguard Morn Total Stk Mkt Idx Investor | 2.64M | 3.19% | 76.70K |
| Vanguard MStar Total Stk Mkt Idx Invest | 2.64M | 3.18% | - |
| Avantis US Small Cap Value ETF | 2.62M | 3.16% | 23.65K |
| Vanguard US Total Market Shares ETF | 2.41M | 2.94% | 2.16K |
| Needham Aggressive Growth Retail | 2.08M | 2.51% | -765.00K |
| iShares Russell 2000 ETF | 1.73M | 2.08% | -30.62K |
| Invesco WilderHill Clean Energy ETF | 1.15M | 1.39% | 46.70K |
| Columbia Small Cap Value Discv A | 1.10M | 1.33% | 35.80K |
| Stt Strt®SPDR®S&PKenshoNwEcosComposETF | 1.08M | 1.30% | 816.00 |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Nov 13, 2025 | Young Donald R | President and CEO | Sell | $183.61K |
| Aug 12, 2025 | Daniel Santhosh P | Chief Accounting Officer | Sell | $32.24K |
| Aug 13, 2025 | Daniel Santhosh P | Chief Accounting Officer | Sell | $15.08K |
| May 12, 2025 | Young Donald R | President and CEO | Buy | $107.00K |
| Sep 30, 2024 | Young Donald R | President and CEO | Sell | $1.90M |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2028 Q1 | - | - |
| 2025 Q4 | - | - |
| 2025 Q3 | - | 2 |
| 2025 Q2 | 1 | - |
| 2025 Q1 | - | - |
ASPN Ownership FAQ
Try Tickergate Pro Free
Customize Everything. 100% Flexibility. Fast and Easy to Use (No code or Excel Needed)
Customize your own personal stocks lists, views and charts
Choose from hundreds of fields, up to 15 years of history
Conduct deep comparison analysis
Discover trending investment themes
Find your next best investment
Research stocks using tools