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, Q1 2026
Institutional positions in Aspen Aerogels Inc as of Mar 31, 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
- 166
- −15 vs. Q4 2025
- Shares held
- 69.3M
- +3.89M (+5.9%) vs. Q4 2025
- Total value
- $236.7M
- +$51.0M (+27.5%) vs. Q4 2025
- New holders
- 34
- 44 more added
- Sold out
- 49
- 57 more reduced
2 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Aspen Aerogels Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Brevan Howard Capital Management LP | 11,619 | $39.7K | 0.00% | +11,619 | New |
| Voya Investment Management LLC | 11,613 | $39.7K | 0.00% | −746−6.0% | Reduced |
| Aptus Capital Advisors, LLC | 10,537 | $36.0K | 0.00% | +10,537 | New |
| Clarus Group, Inc. | 10,504 | $35.9K | 0.01% | +10,504 | New |
| Prudential Financial Inc | 10,155 | $34.7K | 0.00% | +10,155 | New |
| Cerity Partners LLC | 10,151 | $34.7K | 0.00% | +10,151 | New |
| Choate Investment Advisors | 10,000 | $34.2K | 0.00% | 00.0% | Unchanged |
| Spears Abacus Advisors LLC | 10,000 | $34.2K | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 8,897 | $30.4K | 0.00% | −2,394−21.2% | Reduced |
| Royal Bank of Canada | 8,523 | $29.0K | 0.00% | +4,169+95.8% | Added |
| Essential Partners LLC | 6,722 | $23.0K | 0.01% | +6,666+11,903.6% | Added |
| Legal & General Group Plc | 6,035 | $20.6K | 0.00% | −61,095−91.0% | Reduced |
| Strategic Investment Solutions, Inc. | 6,010 | $20.6K | 0.00% | −1,000−14.3% | Reduced |
| Ameritas Investment Partners, Inc. | 5,708 | $19.5K | 0.00% | 00.0% | Unchanged |
| MAI Capital Management | 4,843 | $16.6K | 0.00% | +1,192+32.6% | Added |
| Quantbot Technologies LP | 4,523 | $15.5K | 0.00% | +3,928+660.2% | Added |
| FMR LLC | 4,479 | $15.3K | 0.00% | −1,290−22.4% | Reduced |
| SBI Securities Co., Ltd. | 4,360 | $14.8K | 0.00% | −3,311−43.2% | Reduced |
| Optiver Holding B.V. | 4,207 | $14.4K | 0.00% | −1,839−30.4% | Reduced |
| Banque Cantonale Vaudoise | 4,154 | $14.0K | 0.00% | −2,204−34.7% | Reduced |
| First PREMIER Bank | 4,000 | $14.0K | 0.00% | 00.0% | Unchanged |
| Gunpowder Capital Management, LLC dba Oliver Wealth Management | 3,863 | $13.2K | 0.01% | 00.0% | Unchanged |
| California State Teachers Retirement System | 3,588 | $12.3K | 0.00% | −74,866−95.4% | Reduced |
| Tower Research Capital LLC (TRC) | 3,356 | $11.5K | 0.00% | −1,377−29.1% | Reduced |
| State of Alaska, Department of Revenue | 3,385 | $11.0K | 0.00% | 00.0% | Unchanged |
| Aquatic Capital Management LLC | 3,097 | $10.6K | 0.00% | +3,097 | New |
| Simplex Trading, LLC | 2,374 | $8.12K | 0.00% | −2,458−50.9% | Reduced |
| Covestor Ltd | 2,469 | $8.00K | 0.01% | +9+0.4% | Added |
| Sterling Capital Management LLC | 2,195 | $7.51K | 0.00% | −1,338−37.9% | Reduced |
| Bokf, NA | 2,000 | $6.84K | 0.00% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 1,620 | $5.35K | 0.00% | −125−7.2% | Reduced |
| EverSource Wealth Advisors, LLC | 1,464 | $5.01K | 0.00% | +1,464 | New |
| Rachor Investment Advisory Services, LLC | 1,177 | $4.03K | 0.00% | +487+70.6% | Added |
| Allworth Financial LP | 1,115 | $3.81K | 0.00% | +696+166.1% | Added |
| GGM Financials LLC | 1,010 | $3.45K | 0.00% | 00.0% | Unchanged |
| National Bank of Canada | 1,000 | $3.42K | 0.00% | +800+400.0% | Added |
| Cornerstone Planning Group LLC | 750 | $3.10K | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 904 | $3.09K | 0.00% | −160−15.0% | Reduced |
| PlanVest Financial, Inc | 886 | $3.03K | 0.00% | +886 | New |
| Stance Capital LLC | 811 | $2.77K | 0.00% | +811 | New |
| US Bancorp | 690 | $2.36K | 0.00% | −49−6.6% | Reduced |
| GAMMA Investing LLC | 519 | $1.77K | 0.00% | −417−44.6% | Reduced |
| Nisa Investment Advisors, LLC | 450 | $1.54K | 0.00% | +450 | New |
| Stone House Investment Management, LLC | 405 | $1.39K | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 323 | $1.10K | 0.00% | −10,263−96.9% | Reduced |
| Minot DeBlois Advisors LLC | 300 | $1.03K | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 275 | $941 | 0.00% | +220+400.0% | Added |
| HighMark Wealth Management LLC | 250 | $855 | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 200 | $684 | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 178 | $609 | 0.00% | +122+217.9% | Added |
| Morse Asset Management, Inc | 175 | $599 | 0.00% | 00.0% | Unchanged |
| Strategic Wealth Partners, Ltd. | 156 | $534 | 0.00% | 00.0% | Unchanged |
| Wealth Preservation Advisors, LLC | 127 | $434 | 0.00% | +127 | New |
| Sunbelt Securities, Inc. | 119 | $407 | 0.00% | +56+88.9% | Added |
| Basecamp Wealth Advisors LLC | 90 | $308 | 0.00% | −18−16.7% | Reduced |
| Parkside Financial Bank & Trust | 80 | $274 | 0.00% | 00.0% | Unchanged |
| Smartleaf Asset Management LLC | 85 | $269 | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 61 | $212 | 0.00% | −19−23.8% | Reduced |
| Pinnacle Wealth Planning Services, Inc. | 57 | $195 | 0.00% | +57 | New |
| Fifth Third Bancorp | 56 | $190 | 0.00% | +56 | New |
| Colonial Trust Advisors | 50 | $171 | 0.00% | 00.0% | Unchanged |
| Quaker Wealth Management, LLC | 33 | $113 | 0.00% | −8,439−99.6% | Reduced |
| Asset Planning,Inc | 25 | $86 | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 20 | $69 | 0.00% | +2+11.1% | Added |
| TD Waterhouse Canada Inc. | 15 | $52 | 0.00% | +15 | New |
| Harbour Investments, Inc. | 4 | $14 | 0.00% | +4 | New |
| First Eagle Investment Management, LLC | 0 | $0 | 0.00% | −622,487−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −551,071−100.0% | Sold out |
| FirstWave Capital Management LLC | 0 | $0 | 0.00% | −372,001−100.0% | Sold out |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −118,664−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −263,354−100.0% | Sold out |
| Swiss National Bank | 0 | $0 | 0.00% | −135,200−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −104,300−100.0% | Sold out |
| Assenagon Asset Management S.A. | 0 | $0 | 0.00% | −97,002−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −96,973−100.0% | Sold out |
| UBS Asset Management Americas Inc | 0 | $0 | 0.00% | −94,589−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −87,835−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −65,470−100.0% | Sold out |
| Aristides Capital LLC | 0 | $0 | 0.00% | −62,400−100.0% | Sold out |
| Connors Investor Services Inc | 0 | $0 | 0.00% | −55,167−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −43,842−100.0% | Sold out |
| AWM Investment Company, Inc. | 0 | $0 | 0.00% | −41,092−100.0% | Sold out |
| ARS Investment Partners, LLC | 0 | $0 | 0.00% | −40,765−100.0% | Sold out |
| Caption Management, LLC | 0 | $0 | 0.00% | −36,100−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −35,583−100.0% | Sold out |
| PharVision Advisers, LLC | 0 | $0 | 0.00% | −33,808−100.0% | Sold out |
| Janus Henderson Group PLC | 0 | $0 | 0.00% | −30,455−100.0% | Sold out |
| Lighthouse Investment Partners, LLC | 0 | $0 | 0.00% | −30,000−100.0% | Sold out |
| Journey Strategic Wealth LLC | 0 | $0 | 0.00% | −25,157−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −24,083−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −21,247−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −20,350−100.0% | Sold out |
| Voleon Capital Management LP | 0 | $0 | 0.00% | −19,675−100.0% | Sold out |
| Arizona State Retirement System | 0 | $0 | 0.00% | −19,323−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −18,154−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −16,005−100.0% | Sold out |
| Woodmont Investment Counsel LLC | 0 | $0 | 0.00% | −14,603−100.0% | Sold out |
| StoneX Group Inc. | 0 | $0 | 0.00% | −14,474−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −14,257−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −14,200−100.0% | Sold out |