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 $464.9M in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in Aspen Aerogels Inc as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 204
- +23 vs. Q2 2025
- Shares held
- 71.4M
- −59.8K (−0.1%) vs. Q2 2025
- Total value
- $496.8M
- +$73.5M (+17.4%) vs. Q2 2025
- New holders
- 51
- 63 more added
- Sold out
- 28
- 55 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ASPN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 179 | $464.9M |
| Q1 2026 | 166 | $236.7M |
| Q4 2025 | 183 | $199.0M |
| Q3 2025 | 204 | $496.8M |
| Q2 2025 | 182 | $423.4M |
| Q1 2025 | 221 | $455.4M |
| Q4 2024 | 231 | $868.2M |
| Q3 2024 | 243 | $1.93B |
| Q2 2024 | 222 | $1.69B |
| Q1 2024 | 167 | $1.31B |
| Q4 2023 | 170 | $1.18B |
| Q3 2023 | 159 | $582.9M |
| Q2 2023 | 159 | $524.6M |
| Q1 2023 | 156 | $498.6M |
| Q4 2022 | 164 | $793.4M |
| Q3 2022 | 140 | $344.0M |
| Q2 2022 | 148 | $366.3M |
| Q1 2022 | 145 | $1.09B |
| Q4 2021 | 159 | $1.42B |
| Q3 2021 | 130 | $1.27B |
| Q2 2021 | 115 | $849.9M |
| Q1 2021 | 85 | $482.2M |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Aspen Aerogels Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Kim, LLC | 12,280,426 | $85.5M | 9.62% | 00.0% | Unchanged |
| BlackRock, Inc. | 4,977,558 | $34.6M | 0.00% | +3720.0% | Added |
| Vanguard Group Inc | 4,510,370 | $31.4M | 0.00% | +22,686+0.5% | Added |
| Oaktop Capital Management II, L.P. | 4,394,525 | $30.6M | 2.77% | 00.0% | Unchanged |
| Needham Investment Management LLC | 3,439,700 | $23.9M | 1.67% | +425,500+14.1% | Added |
| George Kaiser Family Foundation | 3,167,322 | $22.0M | 3.09% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 2,252,013 | $15.7M | 0.00% | −197,090−8.0% | Reduced |
| State Street Corp | 1,944,636 | $13.5M | 0.00% | +23,639+1.2% | Added |
| Telemark Asset Management, LLC | 1,792,424 | $12.5M | 1.18% | 00.0% | Unchanged |
| Gagnon Securities LLC | 1,754,833 | $12.2M | 2.45% | −144,275−7.6% | Reduced |
| Geode Capital Management, LLC | 1,584,871 | $11.0M | 0.00% | +2,129+0.1% | Added |
| AWM Investment Company, Inc. | 1,555,477 | $10.8M | 1.01% | +120,000+8.4% | Added |
| Millennium Management LLC | 1,447,517 | $10.1M | 0.01% | +540,772+59.6% | Added |
| Goldman Sachs Group Inc | 1,419,804 | $9.88M | 0.00% | −782,096−35.5% | Reduced |
| Rice Hall James & Associates, LLC | 1,407,726 | $9.80M | 0.53% | −136,689−8.9% | Reduced |
| JPMorgan Chase & Co | 1,349,749 | $9.39M | 0.00% | +103,243+8.3% | Added |
| Invesco Ltd. | 1,222,376 | $8.51M | 0.00% | +390,385+46.9% | Added |
| Citadel Advisors LLC | 1,114,590 | $7.76M | 0.01% | +951,558+583.7% | Added |
| Penn Capital Management Co Inc | 1,036,995 | $7.23M | 0.56% | +291,118+39.0% | Added |
| Bank of America Corp | 814,849 | $5.67M | 0.00% | −3,363−0.4% | Reduced |
| Two Sigma Investments, LP | 811,528 | $5.65M | 0.01% | +40,221+5.2% | Added |
| New York State Common Retirement Fund | 720,024 | $5.01M | 0.01% | +225,562+45.6% | Added |
| Morgan Stanley | 694,488 | $4.83M | 0.00% | −11,511−1.6% | Reduced |
| BNP Paribas Arbitrage, SA | 692,148 | $4.82M | 0.00% | +281,082+68.4% | Added |
| Northern Trust Corp | 613,598 | $4.27M | 0.00% | +9,938+1.6% | Added |
| Peregrine Investment Management Inc | 600,000 | $4.18M | 2.05% | +600,000 | New |
| Charles Schwab Investment Management Inc | 572,588 | $3.99M | 0.00% | +26,745+4.9% | Added |
| Gagnon Advisors, LLC | 565,570 | $3.94M | 2.43% | 00.0% | Unchanged |
| Jump Financial, LLC | 538,300 | $3.75M | 0.05% | +421,900+362.5% | Added |
| First Eagle Investment Management, LLC | 517,323 | $3.60M | 0.01% | +517,323 | New |
| Tudor Investment Corp Et Al | 486,596 | $3.39M | 0.02% | +486,596 | New |
| American Century Companies Inc | 471,312 | $3.28M | 0.00% | +456,268+3,032.9% | Added |
| UBS Group AG | 396,809 | $2.76M | 0.00% | +123,980+45.4% | Added |
| Essex Investment Management Co LLC | 390,033 | $2.71M | 0.42% | −36,495−8.6% | Reduced |
| Royal Bank of Canada | 387,034 | $2.69M | 0.00% | +8,518+2.3% | Added |
| Baird Financial Group, Inc. | 364,423 | $2.54M | 0.00% | −35,317−8.8% | Reduced |
| Samjo Management, LLC | 340,825 | $2.37M | 0.91% | −2,800−0.8% | Reduced |
| Marshall Wace, LLP | 312,190 | $2.17M | 0.00% | −91,816−22.7% | Reduced |
| Federated Hermes, Inc. | 289,931 | $2.02M | 0.00% | −1,476,802−83.6% | Reduced |
| Trexquant Investment LP | 260,157 | $1.81M | 0.02% | −388,881−59.9% | Reduced |
| State of Wisconsin Investment Board | 256,790 | $1.79M | 0.00% | −25,833−9.1% | Reduced |
| Renaissance Technologies LLC | 246,900 | $1.72M | 0.00% | −432,300−63.6% | Reduced |
| Deutsche Bank AG | 220,213 | $1.53M | 0.00% | +5,195+2.4% | Added |
| Bank of New York Mellon Corp | 214,948 | $1.50M | 0.00% | +13,958+6.9% | Added |
| Citigroup Inc | 210,545 | $1.47M | 0.00% | −92,272−30.5% | Reduced |
| Palogic Value Management, L.P. | 200,000 | $1.39M | 0.59% | −410,000−67.2% | Reduced |
| First Trust Advisors LP | 195,968 | $1.36M | 0.00% | −9,595−4.7% | Reduced |
| Sargent Investment Group, LLC | 189,227 | $1.32M | 0.19% | −16,470−8.0% | Reduced |
| Point72 Asset Management, L.P. | 184,300 | $1.28M | 0.00% | +184,300 | New |
| AQR Capital Management LLC | 177,805 | $1.24M | 0.00% | −12,026−6.3% | Reduced |
| Cubist Systematic Strategies, LLC | 176,010 | $1.23M | 0.02% | +80,252+83.8% | Added |
| Susquehanna International Group, LLP | 168,847 | $1.18M | 0.00% | −110,140−39.5% | Reduced |
| HRT Financial LP | 167,423 | $1.17M | 0.00% | −428,319−71.9% | Reduced |
| CastleKnight Management LP | 162,599 | $1.13M | 0.06% | −192,800−54.2% | Reduced |
| Jane Street Group, LLC | 161,125 | $1.12M | 0.00% | +76,245+89.8% | Added |
| Quantbot Technologies LP | 158,583 | $1.10M | 0.03% | +158,583 | New |
| Los Angeles Capital Management LLC | 139,213 | $968.9K | 0.00% | +139,213 | New |
| Voleon Capital Management LP | 138,538 | $964.2K | 0.02% | −110,301−44.3% | Reduced |
| Swiss National Bank | 135,200 | $941.0K | 0.00% | 00.0% | Unchanged |
| Ironwood Investment Management LLC | 134,362 | $935.2K | 0.41% | +10,038+8.1% | Added |
| Russell Investments Group, Ltd. | 134,247 | $934.4K | 0.00% | +57,297+74.5% | Added |
| Nuveen, LLC | 133,867 | $931.7K | 0.00% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 126,275 | $878.9K | 0.00% | −129,319−50.6% | Reduced |
| Firsthand Capital Management, Inc. | 125,000 | $870.0K | 1.46% | 00.0% | Unchanged |
| Alps Advisors Inc | 123,677 | $860.8K | 0.00% | −15,485−11.1% | Reduced |
| Oppenheimer & Co Inc | 121,826 | $847.9K | 0.01% | +102,047+515.9% | Added |
| ExodusPoint Capital Management, LP | 116,422 | $810.3K | 0.01% | +116,422 | New |
| LPL Financial LLC | 110,857 | $771.6K | 0.00% | +67,073+153.2% | Added |
| Rhumbline Advisers | 110,732 | $770.7K | 0.00% | −2,774−2.4% | Reduced |
| Graham Capital Management, L.P. | 105,880 | $736.9K | 0.03% | +93,257+738.8% | Added |
| Two Sigma Advisers, LP | 104,500 | $727.3K | 0.00% | +64,600+161.9% | Added |
| IMC-Chicago, LLC | 103,197 | $718.3K | 0.01% | +16,016+18.4% | Added |
| Barclays PLC | 99,365 | $691.6K | 0.00% | −30,502−23.5% | Reduced |
| Algert Global LLC | 94,655 | $658.8K | 0.01% | −95,670−50.3% | Reduced |
| UBS Asset Management Americas Inc | 94,589 | $658.3K | 0.00% | −88,720−48.4% | Reduced |
| Legato Capital Management LLC | 93,806 | $652.9K | 0.07% | +191+0.2% | Added |
| Squarepoint Ops LLC | 90,850 | $632.3K | 0.00% | +22,683+33.3% | Added |
| Atom Investors LP | 82,648 | $575.2K | 0.04% | +82,648 | New |
| SG Americas Securities, LLC | 80,423 | $560.0K | 0.00% | −53,398−39.9% | Reduced |
| Man Group plc | 80,197 | $558.2K | 0.00% | +80,197 | New |
| Price T Rowe Associates Inc | 76,626 | $534.0K | 0.00% | +5,749+8.1% | Added |
| Counterpoint Mutual Funds LLC | 71,595 | $498.3K | 0.04% | +71,595 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 70,177 | $488.4K | 0.00% | −9,001−11.4% | Reduced |
| Harbour Capital Advisors, LLC | 58,675 | $472.9K | 0.10% | +58,675 | New |
| Legal & General Group Plc | 67,130 | $467.2K | 0.00% | 00.0% | Unchanged |
| CWM Advisors, LLC | 66,115 | $460.2K | 0.04% | +66,115 | New |
| Verition Fund Management LLC | 65,962 | $459.1K | 0.00% | −29,169−30.7% | Reduced |
| EntryPoint Capital, LLC | 65,173 | $453.6K | 0.18% | −40,606−38.4% | Reduced |
| Alliancebernstein L.P. | 64,090 | $446.1K | 0.00% | −22,950−26.4% | Reduced |
| California State Teachers Retirement System | 60,670 | $422.3K | 0.00% | +4,151+7.3% | Added |
| ARS Investment Partners, LLC | 60,007 | $417.6K | 0.03% | +3,500+6.2% | Added |
| Brevan Howard Capital Management LP | 55,400 | $385.6K | 0.01% | +55,400 | New |
| Wells Fargo & Company | 53,769 | $374.2K | 0.00% | +2,412+4.7% | Added |
| Wolverine Trading, LLC | 49,356 | $349.4K | 0.01% | +49,356 | New |
| Capital Fund Management S.A. | 49,750 | $346.3K | 0.00% | −20,298−29.0% | Reduced |
| Perigon Wealth Management, LLC | 49,321 | $343.3K | 0.01% | +11,455+30.3% | Added |
| Franklin Resources Inc | 46,754 | $325.4K | 0.00% | +6,341+15.7% | Added |
| Intech Investment Management LLC | 44,964 | $312.9K | 0.00% | +6,241+16.1% | Added |
| Connors Investor Services Inc | 40,167 | $279.6K | 0.02% | +5,000+14.2% | Added |
| Sanders Morris Harris LLC | 40,000 | $278.4K | 0.04% | 00.0% | Unchanged |