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 2023
Institutional positions in Aspen Aerogels Inc as of Dec 31, 2023. 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
- 170
- +14 vs. Q3 2023
- Shares held
- 75.0M
- +10.4M (+16.2%) vs. Q3 2023
- Total value
- $1.18B
- +$627.7M (+113.1%) vs. Q3 2023
- New holders
- 33
- 51 more added
- Sold out
- 19
- 52 more reduced
3 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2023: 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 2023
Shares, value and share of portfolio for each institution holding Aspen Aerogels Inc; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Allspring Global Investments Holdings, LLC | 84,758 | $1.34M | 0.00% | −11,276−11.7% | Reduced |
| SEI Investments Co | 86,714 | $1.37M | 0.00% | +58,631+208.8% | Added |
| Davy Global Fund Management Ltd | 86,852 | $1.37M | 0.16% | +86,852 | New |
| Advisory Research Inc | 87,936 | $1.39M | 0.21% | +62,112+240.5% | Added |
| Bouvel Investment Partners, LLC | 94,318 | $1.49M | 0.70% | +3,929+4.3% | Added |
| Advisor Group Holdings, Inc. | 98,216 | $1.55M | 0.00% | +45,408+86.0% | Added |
| Credit Suisse AG | 100,220 | $1.58M | 0.00% | 00.0% | Unchanged |
| Jackson Creek Investment Advisors LLC | 101,245 | $1.60M | 0.61% | +101,245 | New |
| Swiss National Bank | 103,700 | $1.64M | 0.00% | −11,900−10.3% | Reduced |
| CastleKnight Management LP | 105,400 | $1.66M | 0.27% | −204,800−66.0% | Reduced |
| Legato Capital Management LLC | 107,252 | $1.69M | 0.22% | 00.0% | Unchanged |
| Potomac Capital Management, Inc. | 117,226 | $1.85M | 2.65% | 00.0% | Unchanged |
| Redwood Grove Capital, LLC | 133,210 | $2.10M | 0.78% | 00.0% | Unchanged |
| Clear Sky Advisers, LLC | 139,343 | $2.20M | 1.03% | +139,343 | New |
| Greenwood Capital Associates LLC | 144,984 | $2.29M | 0.30% | −10,531−6.8% | Reduced |
| Charles Schwab Investment Management Inc | 146,742 | $2.32M | 0.00% | −2,416−1.6% | Reduced |
| Point72 Asset Management, L.P. | 163,411 | $2.58M | 0.01% | −411,822−71.6% | Reduced |
| Jane Street Group, LLC | 174,831 | $2.76M | 0.00% | +174,831 | New |
| Masters Capital Management LLC | 200,000 | $3.16M | 0.55% | −298,500−59.9% | Reduced |
| Palogic Value Management, L.P. | 200,000 | $3.16M | 1.40% | −100,000−33.3% | Reduced |
| Deutsche Bank AG | 200,793 | $3.17M | 0.00% | +137,663+218.1% | Added |
| EAM Investors, LLC | 201,498 | $3.18M | 0.57% | +201,498 | New |
| UBS Group AG | 205,817 | $3.25M | 0.00% | +24,413+13.5% | Added |
| Susquehanna International Group, LLP | 212,774 | $3.36M | 0.01% | +129,717+156.2% | Added |
| Invesco Ltd. | 216,123 | $3.41M | 0.00% | +216,123 | New |
| Bank of New York Mellon Corp | 218,168 | $3.44M | 0.00% | +10,106+4.9% | Added |
| Kennedy Capital Management, Inc. | 220,268 | $3.48M | 0.08% | −347−0.2% | Reduced |
| Goldman Sachs Group Inc | 222,407 | $3.51M | 0.00% | −143,129−39.2% | Reduced |
| Redwood Investments, LLC | 226,299 | $3.57M | 0.93% | −503,124−69.0% | Reduced |
| Castleark Management LLC | 250,060 | $3.95M | 0.17% | +250,060 | New |
| State of Wisconsin Investment Board | 255,700 | $4.03M | 0.01% | +160,334+168.1% | Added |
| Fuller & Thaler Asset Management, Inc. | 272,580 | $4.30M | 0.02% | +196,000+255.9% | Added |
| Citadel Advisors LLC | 275,053 | $4.34M | 0.00% | −392,776−58.8% | Reduced |
| Zevenbergen Capital Investments LLC | 280,802 | $4.43M | 0.10% | +6,575+2.4% | Added |
| Harvey Partners, LLC | 302,500 | $4.77M | 0.56% | 00.0% | Unchanged |
| Silvercrest Asset Management Group LLC | 323,083 | $5.10M | 0.04% | +1160.0% | Added |
| Sargent Investment Group, LLC | 337,281 | $5.32M | 1.17% | +65,571+24.1% | Added |
| Essex Investment Management Co LLC | 433,150 | $6.84M | 1.35% | −161,987−27.2% | Reduced |
| Baird Financial Group, Inc. | 434,938 | $6.86M | 0.02% | −43,233−9.0% | Reduced |
| Worth Venture Partners, LLC | 440,988 | $6.96M | 3.78% | +12,621+2.9% | Added |
| New York State Common Retirement Fund | 508,077 | $8.02M | 0.01% | −46,621−8.4% | Reduced |
| Northern Trust Corp | 521,136 | $8.22M | 0.00% | −7,263−1.4% | Reduced |
| Rice Hall James & Associates, LLC | 580,491 | $9.16M | 0.53% | −42,644−6.8% | Reduced |
| Morgan Stanley | 665,203 | $10.5M | 0.00% | +316,208+90.6% | Added |
| Penn Capital Management Co Inc | 719,681 | $11.4M | 1.04% | −70,255−8.9% | Reduced |
| Mesirow Institutional Investment Management, Inc. | 761,414 | $12.0M | 1.12% | +761,414 | New |
| Dimensional Fund Advisors LP | 815,769 | $12.9M | 0.00% | +576,006+240.2% | Added |
| Driehaus Capital Management LLC | 996,043 | $15.7M | 0.19% | +996,043 | New |
| Ardsley Advisory Partners LP | 1,046,000 | $16.5M | 3.55% | −499,000−32.3% | Reduced |
| UniSuper Management Pty Ltd | 1,083,836 | $17.1M | 0.19% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 1,112,657 | $17.6M | 0.00% | +37,381+3.5% | Added |
| Nuveen Asset Management, LLC | 1,125,380 | $17.8M | 0.01% | +107,288+10.5% | Added |
| Federated Hermes, Inc. | 1,154,042 | $18.2M | 0.05% | +404,042+53.9% | Added |
| State Street Corp | 1,285,042 | $20.3M | 0.00% | +99,226+8.4% | Added |
| Frontier Capital Management Co LLC | 1,451,757 | $22.9M | 0.23% | +488,170+50.7% | Added |
| Telemark Asset Management, LLC | 1,492,424 | $23.6M | 3.51% | +242,424+19.4% | Added |
| Royce & Associates LP | 1,719,083 | $27.1M | 0.25% | +259,734+17.8% | Added |
| AIGH Capital Management LLC | 1,804,484 | $28.5M | 11.26% | +52,462+3.0% | Added |
| Ameriprise Financial Inc | 1,848,520 | $29.2M | 0.01% | +969,028+110.2% | Added |
| Encompass Capital Advisors LLC | 2,027,532 | $32.0M | 1.87% | +2,027,532 | New |
| AWM Investment Company, Inc. | 2,146,428 | $33.9M | 4.46% | +484,848+29.2% | Added |
| Samjo Management, LLC | 2,276,150 | $35.9M | 12.72% | +2,276,150 | New |
| FMR LLC | 2,328,137 | $36.7M | 0.00% | +48,960+2.1% | Added |
| Hood River Capital Management LLC | 2,942,548 | $46.4M | 1.28% | +2,942,548 | New |
| Needham Investment Management LLC | 2,967,400 | $46.8M | 5.91% | +439,100+17.4% | Added |
| George Kaiser Family Foundation | 3,167,322 | $50.0M | 10.21% | 00.0% | Unchanged |
| Oaktop Capital Management II, L.P. | 3,194,758 | $50.4M | 6.68% | 00.0% | Unchanged |
| Vanguard Group Inc | 3,443,796 | $54.3M | 0.00% | −2,091−0.1% | Reduced |
| BlackRock Inc. | 4,054,986 | $64.0M | 0.00% | +181,279+4.7% | Added |
| Kim, LLC | 15,780,426 | $249.0M | 25.48% | 00.0% | Unchanged |
| AMH Equity Ltd | 0 | $0 | 0.00% | −362,970−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −277,967−100.0% | Sold out |
| Sora Investors LLC | 0 | $0 | 0.00% | −250,000−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −193,020−100.0% | Sold out |
| Maven Securities LTD | 0 | $0 | 0.00% | −100,000−100.0% | Sold out |
| Bridgewater Advisors Inc. | 0 | $0 | 0.00% | −76,000−100.0% | Sold out |
| Levin Capital Strategies, L.P. | 0 | $0 | 0.00% | −70,613−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −20,513−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −19,159−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −18,703−100.0% | Sold out |
| Pinebridge Investments, L.P. | 0 | $0 | 0.00% | −18,220−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −14,600−100.0% | Sold out |
| Regions Financial Corp | 0 | $0 | 0.00% | −14,000−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −12,061−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −2,693−100.0% | Sold out |
| Performa Ltd (US), LLC | 0 | $0 | 0.00% | −273−100.0% | Sold out |
| Toronto Dominion Bank | 0 | $0 | 0.00% | −158−100.0% | Sold out |
| Mendota Financial Group, LLC | 0 | $0 | 0.00% | −47−100.0% | Sold out |
| Allworth Financial LP | 0 | $0 | 0.00% | −46−100.0% | Sold out |
| Samjo Capital LLC | – | – | – | – | Not filed |
| Trellus Management Company, LLC | – | – | – | – | Not filed |
| Quantamental Technologies LLC | – | – | – | – | Not filed |