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, Q4 2025
Institutional positions in Aspen Aerogels Inc as of Dec 31, 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
- 183
- −16 vs. Q3 2025
- Shares held
- 70.1M
- −1.02M (−1.4%) vs. Q3 2025
- Total value
- $199.0M
- −$296.1M (−59.8%) vs. Q3 2025
- New holders
- 42
- 46 more added
- Sold out
- 58
- 64 more reduced
5 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Aspen Aerogels Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| True Wealth Design, LLC | 18 | $51 | 0.00% | +18 | New |
| Asset Planning,Inc | 25 | $71 | 0.00% | 00.0% | Unchanged |
| Comerica Bank | 28 | $78 | 0.00% | −65−69.9% | Reduced |
| Colonial Trust Advisors | 50 | $142 | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 55 | $156 | 0.00% | −150−73.2% | Reduced |
| Essential Partners LLC | 56 | $158 | 0.00% | −154−73.3% | Reduced |
| The PNC Financial Services Group, Inc. | 56 | $158 | 0.00% | −101−64.3% | Reduced |
| Sunbelt Securities, Inc. | 63 | $178 | 0.00% | +63 | New |
| Farther Finance Advisors, LLC | 80 | $226 | 0.00% | +79+7,900.0% | Added |
| Parkside Financial Bank & Trust | 80 | $227 | 0.00% | 00.0% | Unchanged |
| Smartleaf Asset Management LLC | 85 | $251 | 0.00% | 00.0% | Unchanged |
| Basecamp Wealth Advisors LLC | 108 | $306 | 0.00% | +108 | New |
| Strategic Wealth Partners, Ltd. | 156 | $441 | 0.00% | −438−73.7% | Reduced |
| Morse Asset Management, Inc | 175 | $495 | 0.00% | −500−74.1% | Reduced |
| National Bank of Canada | 200 | $566 | 0.00% | −327−62.0% | Reduced |
| Rockefeller Capital Management L.P. | 200 | $566 | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 234 | $662 | 0.00% | −1,103−82.5% | Reduced |
| HighMark Wealth Management LLC | 250 | $707 | 0.00% | 00.0% | Unchanged |
| Minot DeBlois Advisors LLC | 300 | $849 | 0.00% | 00.0% | Unchanged |
| Stone House Investment Management, LLC | 405 | $1.15K | 0.00% | +405 | New |
| Allworth Financial LP | 419 | $1.19K | 0.00% | −430−50.6% | Reduced |
| Quantbot Technologies LP | 595 | $1.68K | 0.00% | −157,988−99.6% | Reduced |
| Rachor Investment Advisory Services, LLC | 690 | $1.95K | 0.00% | +690 | New |
| Bessemer Group Inc | 730 | $2.00K | 0.00% | +730 | New |
| US Bancorp | 739 | $2.09K | 0.00% | −2,599−77.9% | Reduced |
| Walleye Capital LLC | 834 | $2.36K | 0.00% | +834 | New |
| Cornerstone Planning Group LLC | 750 | $2.57K | 0.00% | +675+900.0% | Added |
| GAMMA Investing LLC | 936 | $2.65K | 0.00% | −553−37.1% | Reduced |
| GGM Financials LLC | 1,010 | $2.86K | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 1,064 | $3.01K | 0.00% | +689+183.7% | Added |
| Jones Financial Companies LLLP | 1,745 | $4.94K | 0.00% | −800−31.4% | Reduced |
| CWM, LLC | 1,764 | $5.00K | 0.00% | −5,733−76.5% | Reduced |
| Bokf, NA | 2,000 | $5.66K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 2,083 | $6.00K | 0.00% | −47−2.2% | Reduced |
| Covestor Ltd | 2,460 | $7.00K | 0.00% | +2,446+17,471.4% | Added |
| Quarry LP | 2,670 | $7.56K | 0.00% | +1,521+132.4% | Added |
| State of Alaska, Department of Revenue | 3,385 | $9.00K | 0.00% | 00.0% | Unchanged |
| Performa Ltd (US), LLC | 3,250 | $9.20K | 0.00% | +3,250 | New |
| Sterling Capital Management LLC | 3,533 | $10.0K | 0.00% | −1,042−22.8% | Reduced |
| MAI Capital Management | 3,651 | $10.3K | 0.00% | +1,000+37.7% | Added |
| Gunpowder Capital Management, LLC dba Oliver Wealth Management | 3,863 | $10.9K | 0.01% | +3,863 | New |
| First PREMIER Bank | 4,000 | $11.0K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 4,354 | $13.0K | 0.00% | −382,680−98.9% | Reduced |
| Tower Research Capital LLC (TRC) | 4,733 | $13.4K | 0.00% | +868+22.5% | Added |
| Simplex Trading, LLC | 4,832 | $13.7K | 0.00% | −11,419−70.3% | Reduced |
| Ameritas Investment Partners, Inc. | 5,708 | $16.2K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 5,769 | $16.3K | 0.00% | −894−13.4% | Reduced |
| Public Employees Retirement Association of Colorado | 6,088 | $17.0K | 0.00% | 00.0% | Unchanged |
| Optiver Holding B.V. | 6,046 | $17.1K | 0.00% | +5,198+613.0% | Added |
| Banque Cantonale Vaudoise | 6,358 | $18.0K | 0.00% | −2,991−32.0% | Reduced |
| Strategic Investment Solutions, Inc. | 7,010 | $19.8K | 0.00% | +7,010 | New |
| SBI Securities Co., Ltd. | 7,671 | $21.7K | 0.00% | +696+10.0% | Added |
| Quaker Wealth Management, LLC | 8,472 | $24.0K | 0.01% | +8,472 | New |
| Choate Investment Advisors | 10,000 | $28.3K | 0.00% | 00.0% | Unchanged |
| Spears Abacus Advisors LLC | 10,000 | $28.3K | 0.00% | 00.0% | Unchanged |
| Balance Wealth, LLC | 10,297 | $29.1K | 0.01% | +10,297 | New |
| Caitong International Asset Management Co., Ltd | 10,586 | $30.0K | 0.01% | +10,586 | New |
| Drive Wealth Management, LLC | 10,655 | $30.2K | 0.01% | +10,655 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 10,703 | $30.3K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 10,799 | $30.6K | 0.00% | −2,728−20.2% | Reduced |
| IFP Advisors, Inc | 11,291 | $32.0K | 0.00% | −741−6.2% | Reduced |
| Baird Financial Group, Inc. | 11,344 | $32.1K | 0.00% | −353,079−96.9% | Reduced |
| Jefferson Bridge Capital, LLC | 11,450 | $32.4K | 0.03% | +11,450 | New |
| Canada Pension Plan Investment Board | 11,900 | $33.7K | 0.00% | +11,900 | New |
| ProShare Advisors LLC | 12,118 | $34.3K | 0.00% | +780+6.9% | Added |
| Voya Investment Management LLC | 12,359 | $35.0K | 0.00% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 13,800 | $39.1K | 0.00% | 00.0% | Unchanged |
| Janney Montgomery Scott LLC | 14,093 | $40.0K | 0.00% | −6,950−33.0% | Reduced |
| Winton Group Ltd | 14,200 | $40.2K | 0.00% | +14,200 | New |
| Group One Trading, L.P. | 14,257 | $40.3K | 0.00% | +14,257 | New |
| StoneX Group Inc. | 14,474 | $41.0K | 0.00% | +14,474 | New |
| Woodmont Investment Counsel LLC | 14,603 | $41.3K | 0.00% | 00.0% | Unchanged |
| State Board of Administration of Florida Retirement System | 14,618 | $41.4K | 0.00% | 00.0% | Unchanged |
| Legato Capital Management LLC | 15,562 | $44.0K | 0.00% | −78,244−83.4% | Reduced |
| Two Sigma Securities, LLC | 16,005 | $45.3K | 0.01% | +16,005 | New |
| New York State Common Retirement Fund | 16,231 | $45.9K | 0.00% | −703,793−97.7% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 16,663 | $47.2K | 0.00% | −4,446−21.1% | Reduced |
| RSM US Wealth Management LLC | 16,828 | $49.6K | 0.00% | +16,828 | New |
| Quest Partners LLC | 18,154 | $51.4K | 0.00% | 00.0% | Unchanged |
| Arizona State Retirement System | 19,323 | $54.7K | 0.00% | −1,345−6.5% | Reduced |
| Voleon Capital Management LP | 19,675 | $55.7K | 0.00% | −118,863−85.8% | Reduced |
| Schonfeld Strategic Advisors LLC | 20,350 | $57.6K | 0.00% | +20,350 | New |
| Manufacturers Life Insurance Company, The | 21,163 | $59.9K | 0.00% | −1,555−6.8% | Reduced |
| Centiva Capital, LP | 21,247 | $60.1K | 0.00% | +21,247 | New |
| D. E. Shaw & Co., Inc. | 23,217 | $65.7K | 0.00% | +9,995+75.6% | Added |
| HSBC Holdings PLC | 23,326 | $66.0K | 0.00% | +23,326 | New |
| Oxford Asset Management LLP | 24,083 | $68.2K | 0.02% | +24,083 | New |
| Journey Strategic Wealth LLC | 25,157 | $71.2K | 0.00% | +25,157 | New |
| Intech Investment Management LLC | 25,382 | $71.8K | 0.00% | −19,582−43.6% | Reduced |
| MetLife Investment Management | 27,154 | $76.8K | 0.00% | −3,289−10.8% | Reduced |
| Lighthouse Investment Partners, LLC | 30,000 | $84.9K | 0.00% | +30,000 | New |
| Concurrent Investment Advisors, LLC | 30,000 | $84.9K | 0.00% | +30,000 | New |
| Janus Henderson Group PLC | 30,455 | $86.3K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 30,799 | $87.2K | 0.00% | −360−1.2% | Reduced |
| PharVision Advisers, LLC | 33,808 | $95.7K | 0.05% | +33,808 | New |
| Quadrature Capital Ltd | 35,583 | $100.7K | 0.00% | +25,373+248.5% | Added |
| Caption Management, LLC | 36,100 | $102.2K | 0.00% | +6,100+20.3% | Added |
| ARS Investment Partners, LLC | 40,765 | $115.4K | 0.01% | −19,242−32.1% | Reduced |
| AWM Investment Company, Inc. | 41,092 | $116.3K | 0.01% | −1,514,385−97.4% | Reduced |
| Odyssean, LLC | 41,759 | $118.2K | 0.08% | +41,759 | New |