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 |
|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | 21,163 | $59.9K | 0.00% | −1,555−6.8% | Reduced |
| Schonfeld Strategic Advisors LLC | 20,350 | $57.6K | 0.00% | +20,350 | New |
| Voleon Capital Management LP | 19,675 | $55.7K | 0.00% | −118,863−85.8% | Reduced |
| Arizona State Retirement System | 19,323 | $54.7K | 0.00% | −1,345−6.5% | Reduced |
| Quest Partners LLC | 18,154 | $51.4K | 0.00% | 00.0% | Unchanged |
| RSM US Wealth Management LLC | 16,828 | $49.6K | 0.00% | +16,828 | New |
| Police & Firemen's Retirement System of New Jersey | 16,663 | $47.2K | 0.00% | −4,446−21.1% | Reduced |
| New York State Common Retirement Fund | 16,231 | $45.9K | 0.00% | −703,793−97.7% | Reduced |
| Two Sigma Securities, LLC | 16,005 | $45.3K | 0.01% | +16,005 | New |
| Legato Capital Management LLC | 15,562 | $44.0K | 0.00% | −78,244−83.4% | Reduced |
| State Board of Administration of Florida Retirement System | 14,618 | $41.4K | 0.00% | 00.0% | Unchanged |
| Woodmont Investment Counsel LLC | 14,603 | $41.3K | 0.00% | 00.0% | Unchanged |
| StoneX Group Inc. | 14,474 | $41.0K | 0.00% | +14,474 | New |
| Group One Trading, L.P. | 14,257 | $40.3K | 0.00% | +14,257 | New |
| Winton Group Ltd | 14,200 | $40.2K | 0.00% | +14,200 | New |
| Janney Montgomery Scott LLC | 14,093 | $40.0K | 0.00% | −6,950−33.0% | Reduced |
| KLP Kapitalforvaltning AS | 13,800 | $39.1K | 0.00% | 00.0% | Unchanged |
| Voya Investment Management LLC | 12,359 | $35.0K | 0.00% | 00.0% | Unchanged |
| ProShare Advisors LLC | 12,118 | $34.3K | 0.00% | +780+6.9% | Added |
| Canada Pension Plan Investment Board | 11,900 | $33.7K | 0.00% | +11,900 | New |
| Jefferson Bridge Capital, LLC | 11,450 | $32.4K | 0.03% | +11,450 | New |
| Baird Financial Group, Inc. | 11,344 | $32.1K | 0.00% | −353,079−96.9% | Reduced |
| IFP Advisors, Inc | 11,291 | $32.0K | 0.00% | −741−6.2% | Reduced |
| Advisor Group Holdings, Inc. | 10,799 | $30.6K | 0.00% | −2,728−20.2% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 10,703 | $30.3K | 0.00% | 00.0% | Unchanged |
| Drive Wealth Management, LLC | 10,655 | $30.2K | 0.01% | +10,655 | New |
| Caitong International Asset Management Co., Ltd | 10,586 | $30.0K | 0.01% | +10,586 | New |
| Balance Wealth, LLC | 10,297 | $29.1K | 0.01% | +10,297 | 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 |
| Quaker Wealth Management, LLC | 8,472 | $24.0K | 0.01% | +8,472 | New |
| SBI Securities Co., Ltd. | 7,671 | $21.7K | 0.00% | +696+10.0% | Added |
| Strategic Investment Solutions, Inc. | 7,010 | $19.8K | 0.00% | +7,010 | New |
| Banque Cantonale Vaudoise | 6,358 | $18.0K | 0.00% | −2,991−32.0% | Reduced |
| Optiver Holding B.V. | 6,046 | $17.1K | 0.00% | +5,198+613.0% | Added |
| Public Employees Retirement Association of Colorado | 6,088 | $17.0K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 5,769 | $16.3K | 0.00% | −894−13.4% | Reduced |
| Ameritas Investment Partners, Inc. | 5,708 | $16.2K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 4,832 | $13.7K | 0.00% | −11,419−70.3% | Reduced |
| Tower Research Capital LLC (TRC) | 4,733 | $13.4K | 0.00% | +868+22.5% | Added |
| Royal Bank of Canada | 4,354 | $13.0K | 0.00% | −382,680−98.9% | Reduced |
| First PREMIER Bank | 4,000 | $11.0K | 0.00% | 00.0% | Unchanged |
| Gunpowder Capital Management, LLC dba Oliver Wealth Management | 3,863 | $10.9K | 0.01% | +3,863 | New |
| MAI Capital Management | 3,651 | $10.3K | 0.00% | +1,000+37.7% | Added |
| Sterling Capital Management LLC | 3,533 | $10.0K | 0.00% | −1,042−22.8% | Reduced |
| Performa Ltd (US), LLC | 3,250 | $9.20K | 0.00% | +3,250 | New |
| State of Alaska, Department of Revenue | 3,385 | $9.00K | 0.00% | 00.0% | Unchanged |
| Quarry LP | 2,670 | $7.56K | 0.00% | +1,521+132.4% | Added |
| Covestor Ltd | 2,460 | $7.00K | 0.00% | +2,446+17,471.4% | Added |
| Amalgamated Bank | 2,083 | $6.00K | 0.00% | −47−2.2% | Reduced |
| Bokf, NA | 2,000 | $5.66K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 1,764 | $5.00K | 0.00% | −5,733−76.5% | Reduced |
| Jones Financial Companies LLLP | 1,745 | $4.94K | 0.00% | −800−31.4% | Reduced |
| Larson Financial Group LLC | 1,064 | $3.01K | 0.00% | +689+183.7% | Added |
| GGM Financials LLC | 1,010 | $2.86K | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 936 | $2.65K | 0.00% | −553−37.1% | Reduced |
| Cornerstone Planning Group LLC | 750 | $2.57K | 0.00% | +675+900.0% | Added |
| Walleye Capital LLC | 834 | $2.36K | 0.00% | +834 | New |
| US Bancorp | 739 | $2.09K | 0.00% | −2,599−77.9% | Reduced |
| Bessemer Group Inc | 730 | $2.00K | 0.00% | +730 | New |
| Rachor Investment Advisory Services, LLC | 690 | $1.95K | 0.00% | +690 | New |
| Quantbot Technologies LP | 595 | $1.68K | 0.00% | −157,988−99.6% | Reduced |
| Allworth Financial LP | 419 | $1.19K | 0.00% | −430−50.6% | Reduced |
| Stone House Investment Management, LLC | 405 | $1.15K | 0.00% | +405 | New |
| Minot DeBlois Advisors LLC | 300 | $849 | 0.00% | 00.0% | Unchanged |
| HighMark Wealth Management LLC | 250 | $707 | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 234 | $662 | 0.00% | −1,103−82.5% | 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 |
| Morse Asset Management, Inc | 175 | $495 | 0.00% | −500−74.1% | Reduced |
| Strategic Wealth Partners, Ltd. | 156 | $441 | 0.00% | −438−73.7% | Reduced |
| Basecamp Wealth Advisors LLC | 108 | $306 | 0.00% | +108 | New |
| Smartleaf Asset Management LLC | 85 | $251 | 0.00% | 00.0% | Unchanged |
| Parkside Financial Bank & Trust | 80 | $227 | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 80 | $226 | 0.00% | +79+7,900.0% | Added |
| Sunbelt Securities, Inc. | 63 | $178 | 0.00% | +63 | New |
| 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 |
| Rothschild Investment LLC | 55 | $156 | 0.00% | −150−73.2% | Reduced |
| Colonial Trust Advisors | 50 | $142 | 0.00% | 00.0% | Unchanged |
| Comerica Bank | 28 | $78 | 0.00% | −65−69.9% | Reduced |
| Asset Planning,Inc | 25 | $71 | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 18 | $51 | 0.00% | +18 | New |
| Penn Capital Management Co Inc | 0 | $0 | 0.00% | −1,036,995−100.0% | Sold out |
| Peregrine Investment Management Inc | 0 | $0 | 0.00% | −600,000−100.0% | Sold out |
| Gagnon Advisors, LLC | 0 | $0 | 0.00% | −565,570−100.0% | Sold out |
| Essex Investment Management Co LLC | 0 | $0 | 0.00% | −390,033−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −260,157−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −246,900−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −184,300−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −167,423−100.0% | Sold out |
| CastleKnight Management LP | 0 | $0 | 0.00% | −162,599−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −126,275−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −90,850−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −82,648−100.0% | Sold out |
| Man Group plc | 0 | $0 | 0.00% | −80,197−100.0% | Sold out |
| Counterpoint Mutual Funds LLC | 0 | $0 | 0.00% | −71,595−100.0% | Sold out |
| Harbour Capital Advisors, LLC | 0 | $0 | 0.00% | −58,675−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −55,400−100.0% | Sold out |
| Capital Fund Management S.A. | 0 | $0 | 0.00% | −49,750−100.0% | Sold out |