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, Q2 2026
Institutional positions in Aspen Aerogels Inc as of Jun 30, 2026. 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
- 179
- +15 vs. Q1 2026
- Shares held
- 73.4M
- +4.14M (+6.0%) vs. Q1 2026
- Total value
- $464.9M
- +$228.2M (+96.4%) vs. Q1 2026
- New holders
- 37
- 61 more added
- Sold out
- 22
- 46 more reduced
2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Aspen Aerogels Inc; 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 |
| Geode Capital Management, LLC | 1,770,425 | $11.2M | 0.00% | +229,654+14.9% | Added |
| Rice Hall James & Associates, LLC | 1,635,259 | $10.4M | 0.50% | +82,631+5.3% | Added |
| Invesco Ltd. | 1,619,972 | $10.3M | 0.00% | −678,211−29.5% | Reduced |
| Gagnon Securities LLC | 1,535,812 | $9.74M | 1.88% | −326,039−17.5% | Reduced |
| Dimensional Fund Advisors LP | 1,447,333 | $9.17M | 0.00% | +190,853+15.2% | Added |
| Goldman Sachs Group Inc | 1,372,300 | $8.70M | 0.00% | +472,787+52.6% | Added |
| Royce & Associates LP | 1,323,218 | $8.39M | 0.07% | +336,705+34.1% | Added |
| AQR Capital Management LLC | 1,276,346 | $8.09M | 0.00% | +750,227+142.6% | Added |
| Millennium Management LLC | 1,190,616 | $7.55M | 0.01% | −214,059−15.2% | Reduced |
| Marshall Wace, LLP | 1,146,707 | $7.27M | 0.01% | −116,395−9.2% | Reduced |
| D. E. Shaw & Co., Inc. | 1,066,501 | $6.76M | 0.00% | +232,929+27.9% | Added |
| Telemark Asset Management, LLC | 1,000,000 | $6.34M | 0.46% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 1,004,383 | $6.01M | 0.00% | +38,891+4.0% | Added |
| BNP Paribas Arbitrage, SA | 867,199 | $5.50M | 0.00% | +169,267+24.3% | Added |
| Two Sigma Investments, LP | 779,468 | $4.94M | 0.00% | +338,032+76.6% | Added |
| Vanguard Portfolio Management LLC | 698,983 | $4.43M | 0.00% | −17,749−2.5% | Reduced |
| Acadian Asset Management LLC | 684,915 | $4.34M | 0.01% | +684,915 | New |
| Federated Hermes, Inc. | 596,883 | $3.78M | 0.01% | +146,847+32.6% | Added |
| Charles Schwab Investment Management Inc | 570,712 | $3.62M | 0.00% | +13,987+2.5% | Added |
| Tudor Investment Corp Et Al | 567,384 | $3.60M | 0.01% | +416,291+275.5% | Added |
| Northern Trust Corp | 565,569 | $3.59M | 0.00% | +42,147+8.1% | Added |
| Vanguard Fiduciary Trust Co | 474,393 | $3.01M | 0.00% | +19,991+4.4% | Added |
| Panagora Asset Management Inc | 442,448 | $2.81M | 0.01% | +414,545+1,485.7% | Added |
| Morgan Stanley | 397,075 | $2.52M | 0.00% | +208,769+110.9% | Added |
| Deutsche Bank AG | 372,077 | $2.36M | 0.00% | +12,542+3.5% | Added |
| Baird Financial Group, Inc. | 345,193 | $2.19M | 0.00% | +345,193 | New |
| Algert Global LLC | 302,582 | $1.92M | 0.02% | −23,828−7.3% | Reduced |
| Trexquant Investment LP | 302,439 | $1.92M | 0.01% | +302,439 | New |
| Renaissance Technologies LLC | 274,392 | $1.74M | 0.00% | +274,392 | New |
| Bank of America Corp | 252,746 | $1.60M | 0.00% | +11,726+4.9% | Added |
| Citadel Advisors LLC | 238,731 | $1.51M | 0.00% | −342,456−58.9% | Reduced |
| Prudential Financial Inc | 229,935 | $1.46M | 0.00% | +219,780+2,164.3% | Added |
| XTX Topco Ltd | 227,977 | $1.45M | 0.02% | +26,610+13.2% | Added |
| First Trust Advisors LP | 222,352 | $1.41M | 0.00% | +41,118+22.7% | Added |
| Bank of New York Mellon Corp | 195,389 | $1.24M | 0.00% | +9,716+5.2% | Added |
| Palogic Value Management, L.P. | 185,589 | $1.18M | 0.42% | −264,411−58.8% | Reduced |
| Citigroup Inc | 181,651 | $1.15M | 0.00% | −52,014−22.3% | Reduced |
| Ironwood Investment Management LLC | 179,301 | $1.14M | 0.39% | +12,655+7.6% | Added |
| Susquehanna International Group, LLP | 177,419 | $1.12M | 0.00% | −96,898−35.3% | Reduced |
| Arrowstreet Capital, Limited Partnership | 171,150 | $1.09M | 0.00% | +171,150 | New |
| Jump Financial, LLC | 168,865 | $1.07M | 0.01% | +168,865 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 157,400 | $997.9K | 0.00% | 00.0% | Unchanged |
| Nuveen, LLC | 145,324 | $921.4K | 0.00% | +10,657+7.9% | Added |
| Price T Rowe Associates Inc | 130,300 | $827.0K | 0.00% | +23,000+21.4% | Added |
| Public Employees Retirement System of Ohio | 128,107 | $812.2K | 0.00% | +65,407+104.3% | Added |
| Jefferies Financial Group Inc. | 126,303 | $800.8K | 0.01% | +126,303 | New |
| Firsthand Capital Management, Inc. | 125,000 | $792.5K | 1.27% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 120,306 | $762.7K | 0.00% | +5,920+5.2% | Added |
| Bridgeway Capital Management, LLC | 110,000 | $697.4K | 0.01% | +35,000+46.7% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 107,505 | $681.6K | 0.00% | −19,975−15.7% | Reduced |
| Sargent Investment Group, LLC | 106,432 | $674.8K | 0.08% | −10,025−8.6% | Reduced |
| CWM Advisors, LLC | 106,330 | $674.1K | 0.03% | −44,674−29.6% | Reduced |
| Ieq Capital, LLC | 103,313 | $655.0K | 0.00% | +103,313 | New |
| RBF Capital, LLC | 100,000 | $634.0K | 0.03% | 00.0% | Unchanged |
| Man Group plc | 90,259 | $572.2K | 0.00% | −53,063−37.0% | Reduced |
| Rhumbline Advisers | 83,335 | $528.3K | 0.00% | −664−0.8% | Reduced |
| LPL Financial LLC | 69,365 | $439.8K | 0.00% | +30,516+78.6% | Added |
| FMR LLC | 68,476 | $434.1K | 0.00% | +63,997+1,428.8% | Added |
| EntryPoint Capital, LLC | 67,794 | $429.8K | 0.10% | −78,879−53.8% | Reduced |
| UBS Group AG | 66,671 | $422.7K | 0.00% | −122,558−64.8% | Reduced |
| Oppenheimer & Co Inc | 64,430 | $408.5K | 0.00% | −11,854−15.5% | Reduced |
| Winton Group Ltd | 61,200 | $388.0K | 0.01% | +61,200 | New |
| Wells Fargo & Company | 59,370 | $376.4K | 0.00% | +30,787+107.7% | Added |
| Centiva Capital, LP | 56,459 | $357.9K | 0.01% | +56,459 | New |
| Franklin Resources Inc | 47,907 | $303.7K | 0.00% | −15,130−24.0% | Reduced |
| Graham Capital Management, L.P. | 46,267 | $293.3K | 0.01% | −6,160−11.7% | Reduced |
| SRS Capital Advisors, Inc. | 46,153 | $292.6K | 0.00% | +46,153 | New |
| Quantbot Technologies LP | 45,432 | $288.0K | 0.01% | +40,909+904.5% | Added |
| Balyasny Asset Management LLC | 43,717 | $277.2K | 0.00% | −105,656−70.7% | Reduced |
| Mariner, LLC | 42,652 | $270.4K | 0.00% | +42,652 | New |
| Odyssean, LLC | 41,759 | $264.8K | 0.04% | 00.0% | Unchanged |
| MetLife Investment Management | 40,269 | $255.3K | 0.00% | +25,151+166.4% | Added |
| Alliancebernstein L.P. | 74,130 | $253.5K | 0.00% | +10,040+15.7% | Added |
| Mercer Global Advisors Inc | 38,679 | $245.2K | 0.00% | +38,679 | New |
| State of Wyoming | 38,000 | $240.9K | 0.02% | +38,000 | New |
| Fox Run Management, L.L.C. | 37,919 | $240.4K | 0.04% | +37,919 | New |
| Y-Intercept (Hong Kong) Ltd | 36,820 | $233.4K | 0.00% | +36,820 | New |
| Dynamic Technology Lab Private Ltd | 35,103 | $223.0K | 0.05% | −86,591−71.2% | Reduced |
| SG Americas Securities, LLC | 34,349 | $218.0K | 0.00% | +34,349 | New |
| State of Wisconsin Investment Board | 33,247 | $210.8K | 0.00% | −69,429−67.6% | Reduced |
| Diversified Trust Co | 33,047 | $209.5K | 0.00% | +33,047 | New |
| Concurrent Investment Advisors, LLC | 32,050 | $203.2K | 0.00% | +2,000+6.7% | Added |
| Creative Planning | 31,432 | $199.3K | 0.00% | +31,432 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 31,271 | $198.3K | 0.00% | −276−0.9% | Reduced |
| Bailard, Inc. | 29,508 | $187.1K | 0.00% | +29,508 | New |
| Vanguard Global Advisers, LLC | 28,581 | $181.2K | 0.00% | 00.0% | Unchanged |
| Cerity Partners LLC | 28,365 | $179.8K | 0.00% | +18,214+179.4% | Added |
| Headlands Technologies LLC | 27,413 | $173.8K | 0.02% | +27,413 | New |
| nVerses Capital, LLC | 25,234 | $160.0K | 0.25% | −15,312−37.8% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 30,386 | $156.8K | 0.00% | +19,360+175.6% | Added |