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 |
|---|---|---|---|---|---|
| Balyasny Asset Management LLC | 43,717 | $277.2K | 0.00% | −105,656−70.7% | Reduced |
| Quantbot Technologies LP | 45,432 | $288.0K | 0.01% | +40,909+904.5% | Added |
| SRS Capital Advisors, Inc. | 46,153 | $292.6K | 0.00% | +46,153 | New |
| Graham Capital Management, L.P. | 46,267 | $293.3K | 0.01% | −6,160−11.7% | Reduced |
| Franklin Resources Inc | 47,907 | $303.7K | 0.00% | −15,130−24.0% | Reduced |
| Centiva Capital, LP | 56,459 | $357.9K | 0.01% | +56,459 | New |
| Wells Fargo & Company | 59,370 | $376.4K | 0.00% | +30,787+107.7% | Added |
| Winton Group Ltd | 61,200 | $388.0K | 0.01% | +61,200 | New |
| Oppenheimer & Co Inc | 64,430 | $408.5K | 0.00% | −11,854−15.5% | Reduced |
| UBS Group AG | 66,671 | $422.7K | 0.00% | −122,558−64.8% | Reduced |
| EntryPoint Capital, LLC | 67,794 | $429.8K | 0.10% | −78,879−53.8% | Reduced |
| FMR LLC | 68,476 | $434.1K | 0.00% | +63,997+1,428.8% | Added |
| LPL Financial LLC | 69,365 | $439.8K | 0.00% | +30,516+78.6% | Added |
| Rhumbline Advisers | 83,335 | $528.3K | 0.00% | −664−0.8% | Reduced |
| Man Group plc | 90,259 | $572.2K | 0.00% | −53,063−37.0% | Reduced |
| RBF Capital, LLC | 100,000 | $634.0K | 0.03% | 00.0% | Unchanged |
| Ieq Capital, LLC | 103,313 | $655.0K | 0.00% | +103,313 | New |
| CWM Advisors, LLC | 106,330 | $674.1K | 0.03% | −44,674−29.6% | Reduced |
| Sargent Investment Group, LLC | 106,432 | $674.8K | 0.08% | −10,025−8.6% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 107,505 | $681.6K | 0.00% | −19,975−15.7% | Reduced |
| Bridgeway Capital Management, LLC | 110,000 | $697.4K | 0.01% | +35,000+46.7% | Added |
| Russell Investments Group, Ltd. | 120,306 | $762.7K | 0.00% | +5,920+5.2% | Added |
| Firsthand Capital Management, Inc. | 125,000 | $792.5K | 1.27% | 00.0% | Unchanged |
| Jefferies Financial Group Inc. | 126,303 | $800.8K | 0.01% | +126,303 | New |
| Public Employees Retirement System of Ohio | 128,107 | $812.2K | 0.00% | +65,407+104.3% | Added |
| Price T Rowe Associates Inc | 130,300 | $827.0K | 0.00% | +23,000+21.4% | Added |
| Nuveen, LLC | 145,324 | $921.4K | 0.00% | +10,657+7.9% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 157,400 | $997.9K | 0.00% | 00.0% | Unchanged |
| Jump Financial, LLC | 168,865 | $1.07M | 0.01% | +168,865 | New |
| Arrowstreet Capital, Limited Partnership | 171,150 | $1.09M | 0.00% | +171,150 | New |
| Susquehanna International Group, LLP | 177,419 | $1.12M | 0.00% | −96,898−35.3% | Reduced |
| Ironwood Investment Management LLC | 179,301 | $1.14M | 0.39% | +12,655+7.6% | Added |
| Citigroup Inc | 181,651 | $1.15M | 0.00% | −52,014−22.3% | Reduced |
| Palogic Value Management, L.P. | 185,589 | $1.18M | 0.42% | −264,411−58.8% | Reduced |
| Bank of New York Mellon Corp | 195,389 | $1.24M | 0.00% | +9,716+5.2% | Added |
| First Trust Advisors LP | 222,352 | $1.41M | 0.00% | +41,118+22.7% | Added |
| XTX Topco Ltd | 227,977 | $1.45M | 0.02% | +26,610+13.2% | Added |
| Prudential Financial Inc | 229,935 | $1.46M | 0.00% | +219,780+2,164.3% | Added |
| Citadel Advisors LLC | 238,731 | $1.51M | 0.00% | −342,456−58.9% | Reduced |
| Bank of America Corp | 252,746 | $1.60M | 0.00% | +11,726+4.9% | Added |
| Renaissance Technologies LLC | 274,392 | $1.74M | 0.00% | +274,392 | New |
| Trexquant Investment LP | 302,439 | $1.92M | 0.01% | +302,439 | New |
| Algert Global LLC | 302,582 | $1.92M | 0.02% | −23,828−7.3% | Reduced |
| Baird Financial Group, Inc. | 345,193 | $2.19M | 0.00% | +345,193 | New |
| Deutsche Bank AG | 372,077 | $2.36M | 0.00% | +12,542+3.5% | Added |
| Morgan Stanley | 397,075 | $2.52M | 0.00% | +208,769+110.9% | Added |
| Panagora Asset Management Inc | 442,448 | $2.81M | 0.01% | +414,545+1,485.7% | Added |
| Vanguard Fiduciary Trust Co | 474,393 | $3.01M | 0.00% | +19,991+4.4% | Added |
| Northern Trust Corp | 565,569 | $3.59M | 0.00% | +42,147+8.1% | Added |
| Tudor Investment Corp Et Al | 567,384 | $3.60M | 0.01% | +416,291+275.5% | Added |
| Charles Schwab Investment Management Inc | 570,712 | $3.62M | 0.00% | +13,987+2.5% | Added |
| Federated Hermes, Inc. | 596,883 | $3.78M | 0.01% | +146,847+32.6% | Added |
| Acadian Asset Management LLC | 684,915 | $4.34M | 0.01% | +684,915 | New |
| Vanguard Portfolio Management LLC | 698,983 | $4.43M | 0.00% | −17,749−2.5% | Reduced |
| Two Sigma Investments, LP | 779,468 | $4.94M | 0.00% | +338,032+76.6% | Added |
| BNP Paribas Arbitrage, SA | 867,199 | $5.50M | 0.00% | +169,267+24.3% | Added |
| JPMorgan Chase & Co | 1,004,383 | $6.01M | 0.00% | +38,891+4.0% | Added |
| Telemark Asset Management, LLC | 1,000,000 | $6.34M | 0.46% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 1,066,501 | $6.76M | 0.00% | +232,929+27.9% | Added |
| Marshall Wace, LLP | 1,146,707 | $7.27M | 0.01% | −116,395−9.2% | Reduced |
| Millennium Management LLC | 1,190,616 | $7.55M | 0.01% | −214,059−15.2% | Reduced |
| AQR Capital Management LLC | 1,276,346 | $8.09M | 0.00% | +750,227+142.6% | Added |
| Royce & Associates LP | 1,323,218 | $8.39M | 0.07% | +336,705+34.1% | Added |
| Goldman Sachs Group Inc | 1,372,300 | $8.70M | 0.00% | +472,787+52.6% | Added |
| Dimensional Fund Advisors LP | 1,447,333 | $9.17M | 0.00% | +190,853+15.2% | Added |
| Gagnon Securities LLC | 1,535,812 | $9.74M | 1.88% | −326,039−17.5% | Reduced |
| Invesco Ltd. | 1,619,972 | $10.3M | 0.00% | −678,211−29.5% | Reduced |
| Rice Hall James & Associates, LLC | 1,635,259 | $10.4M | 0.50% | +82,631+5.3% | Added |
| Geode Capital Management, LLC | 1,770,425 | $11.2M | 0.00% | +229,654+14.9% | Added |
| Ameriprise Financial Inc | 1,821,295 | $11.5M | 0.00% | +314,916+20.9% | Added |
| Jacobs Levy Equity Management, Inc | 2,058,083 | $13.0M | 0.05% | +839,304+68.9% | Added |
| American Century Companies Inc | 2,510,042 | $15.9M | 0.01% | +1,262,259+101.2% | Added |
| State Street Corp | 2,559,495 | $16.2M | 0.00% | +238,768+10.3% | Added |
| George Kaiser Family Foundation | 3,167,322 | $20.1M | 1.93% | 00.0% | Unchanged |
| Needham Investment Management LLC | 3,260,800 | $20.7M | 0.62% | −1,257,975−27.8% | Reduced |
| Vanguard Capital Management LLC | 3,539,271 | $22.4M | 0.00% | +103,115+3.0% | Added |
| Oaktop Capital Management II, L.P. | 5,168,674 | $32.8M | 1.39% | 00.0% | Unchanged |
| BlackRock, Inc. | 5,277,148 | $33.5M | 0.00% | +534,072+11.3% | Added |
| Kim, LLC | 12,280,426 | $77.9M | 10.59% | 00.0% | Unchanged |
| HRT Financial LP | 0 | $0 | 0.00% | −870,435−100.0% | Sold out |
| Samjo Management, LLC | 0 | $0 | 0.00% | −645,625−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −187,860−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −148,159−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −141,745−100.0% | Sold out |
| Alps Advisors Inc | 0 | $0 | 0.00% | −124,353−100.0% | Sold out |
| Numerai GP LLC | 0 | $0 | 0.00% | −95,900−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −26,624−100.0% | Sold out |
| IMC-Chicago, LLC | 0 | $0 | 0.00% | −22,470−100.0% | Sold out |
| RSM US Wealth Management LLC | 0 | $0 | 0.00% | −17,250−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −11,619−100.0% | Sold out |
| Aptus Capital Advisors, LLC | 0 | $0 | 0.00% | −10,537−100.0% | Sold out |
| Clarus Group, Inc. | 0 | $0 | 0.00% | −10,504−100.0% | Sold out |
| Spears Abacus Advisors LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −4,843−100.0% | Sold out |
| Banque Cantonale Vaudoise | 0 | $0 | 0.00% | −4,154−100.0% | Sold out |
| Gunpowder Capital Management, LLC dba Oliver Wealth Management | 0 | $0 | 0.00% | −3,863−100.0% | Sold out |
| Rachor Investment Advisory Services, LLC | 0 | $0 | 0.00% | −1,177−100.0% | Sold out |
| National Bank of Canada | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Wealth Preservation Advisors, LLC | 0 | $0 | 0.00% | −127−100.0% | Sold out |
| Parkside Financial Bank & Trust | 0 | $0 | 0.00% | −80−100.0% | Sold out |