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 2021
Institutional positions in Aspen Aerogels Inc as of Jun 30, 2021. 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
- 115
- +30 vs. Q1 2021
- Shares held
- 28.4M
- +4.71M (+19.9%) vs. Q1 2021
- Total value
- $849.9M
- +$367.7M (+76.3%) vs. Q1 2021
- New holders
- 36
- 34 more added
- Sold out
- 6
- 29 more reduced
Compare with Q1 2021: 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 2021
Shares, value and share of portfolio for each institution holding Aspen Aerogels Inc; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 520,410 | $15.6M | 0.00% | +100,110+23.8% | Added |
| Essex Investment Management Co LLC | 564,607 | $16.9M | 1.96% | +24,154+4.5% | Added |
| Royce & Associates LP | 585,185 | $17.5M | 0.12% | +98,413+20.2% | Added |
| Next Century Growth Investors LLC | 597,873 | $17.9M | 1.40% | −75,539−11.2% | Reduced |
| AIGH Capital Management LLC | 655,819 | $19.6M | 5.32% | 00.0% | Unchanged |
| G2 Investment Partners Management LLC | 686,932 | $20.6M | 3.39% | +130,028+23.3% | Added |
| State Street Corp | 737,774 | $22.1M | 0.00% | +213,577+40.7% | Added |
| Driehaus Capital Management LLC | 855,902 | $25.6M | 0.34% | −14,008−1.6% | Reduced |
| Needham Investment Management LLC | 1,120,500 | $33.5M | 4.90% | +17,500+1.6% | Added |
| Vanguard Group Inc | 1,304,463 | $39.0M | 0.00% | +104,143+8.7% | Added |
| BlackRock Inc. | 1,574,572 | $47.1M | 0.00% | −282,176−15.2% | Reduced |
| Telemark Asset Management, LLC | 2,025,000 | $60.6M | 4.84% | 00.0% | Unchanged |
| Oaktop Capital Management II, L.P. | 2,939,758 | $88.0M | 12.59% | 00.0% | Unchanged |
| George Kaiser Family Foundation | 3,167,322 | $94.8M | 15.33% | 00.0% | Unchanged |
| Spring Creek Capital LLC | 3,462,124 | $103.6M | 5.14% | +3,462,124 | New |
| IFP Advisors, Inc | 0 | $0 | 0.00% | −800−100.0% | Sold out |
| Calamos Advisors LLC | 0 | $0 | 0.00% | −124,368−100.0% | Sold out |
| Russell Investments Group, Ltd. | 0 | $0 | 0.00% | −89,512−100.0% | Sold out |
| California Public Employees Retirement System | 0 | $0 | 0.00% | −41,582−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −8,012−100.0% | Sold out |
| Meeder Asset Management Inc | 0 | $0 | 0.00% | −4,834−100.0% | Sold out |