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 |
|---|---|---|---|---|---|
| Kim, LLC | 15,780,426 | $249.0M | 25.48% | 00.0% | Unchanged |
| BlackRock Inc. | 4,054,986 | $64.0M | 0.00% | +181,279+4.7% | Added |
| Vanguard Group Inc | 3,443,796 | $54.3M | 0.00% | −2,091−0.1% | Reduced |
| Oaktop Capital Management II, L.P. | 3,194,758 | $50.4M | 6.68% | 00.0% | Unchanged |
| George Kaiser Family Foundation | 3,167,322 | $50.0M | 10.21% | 00.0% | Unchanged |
| Needham Investment Management LLC | 2,967,400 | $46.8M | 5.91% | +439,100+17.4% | Added |
| Hood River Capital Management LLC | 2,942,548 | $46.4M | 1.28% | +2,942,548 | New |
| FMR LLC | 2,328,137 | $36.7M | 0.00% | +48,960+2.1% | Added |
| Samjo Management, LLC | 2,276,150 | $35.9M | 12.72% | +2,276,150 | New |
| AWM Investment Company, Inc. | 2,146,428 | $33.9M | 4.46% | +484,848+29.2% | Added |
| Encompass Capital Advisors LLC | 2,027,532 | $32.0M | 1.87% | +2,027,532 | New |
| Ameriprise Financial Inc | 1,848,520 | $29.2M | 0.01% | +969,028+110.2% | Added |
| AIGH Capital Management LLC | 1,804,484 | $28.5M | 11.26% | +52,462+3.0% | Added |
| Royce & Associates LP | 1,719,083 | $27.1M | 0.25% | +259,734+17.8% | Added |
| Telemark Asset Management, LLC | 1,492,424 | $23.6M | 3.51% | +242,424+19.4% | Added |
| Frontier Capital Management Co LLC | 1,451,757 | $22.9M | 0.23% | +488,170+50.7% | Added |
| State Street Corp | 1,285,042 | $20.3M | 0.00% | +99,226+8.4% | Added |
| Federated Hermes, Inc. | 1,154,042 | $18.2M | 0.05% | +404,042+53.9% | Added |
| Nuveen Asset Management, LLC | 1,125,380 | $17.8M | 0.01% | +107,288+10.5% | Added |
| Geode Capital Management, LLC | 1,112,657 | $17.6M | 0.00% | +37,381+3.5% | Added |
| UniSuper Management Pty Ltd | 1,083,836 | $17.1M | 0.19% | 00.0% | Unchanged |
| Ardsley Advisory Partners LP | 1,046,000 | $16.5M | 3.55% | −499,000−32.3% | Reduced |
| Driehaus Capital Management LLC | 996,043 | $15.7M | 0.19% | +996,043 | New |
| Dimensional Fund Advisors LP | 815,769 | $12.9M | 0.00% | +576,006+240.2% | Added |
| Mesirow Institutional Investment Management, Inc. | 761,414 | $12.0M | 1.12% | +761,414 | New |
| Penn Capital Management Co Inc | 719,681 | $11.4M | 1.04% | −70,255−8.9% | Reduced |
| Morgan Stanley | 665,203 | $10.5M | 0.00% | +316,208+90.6% | Added |
| Rice Hall James & Associates, LLC | 580,491 | $9.16M | 0.53% | −42,644−6.8% | Reduced |
| Northern Trust Corp | 521,136 | $8.22M | 0.00% | −7,263−1.4% | Reduced |
| New York State Common Retirement Fund | 508,077 | $8.02M | 0.01% | −46,621−8.4% | Reduced |
| Worth Venture Partners, LLC | 440,988 | $6.96M | 3.78% | +12,621+2.9% | Added |
| Baird Financial Group, Inc. | 434,938 | $6.86M | 0.02% | −43,233−9.0% | Reduced |
| Essex Investment Management Co LLC | 433,150 | $6.84M | 1.35% | −161,987−27.2% | Reduced |
| Sargent Investment Group, LLC | 337,281 | $5.32M | 1.17% | +65,571+24.1% | Added |
| Silvercrest Asset Management Group LLC | 323,083 | $5.10M | 0.04% | +1160.0% | Added |
| Harvey Partners, LLC | 302,500 | $4.77M | 0.56% | 00.0% | Unchanged |
| Zevenbergen Capital Investments LLC | 280,802 | $4.43M | 0.10% | +6,575+2.4% | Added |
| Citadel Advisors LLC | 275,053 | $4.34M | 0.00% | −392,776−58.8% | Reduced |
| Fuller & Thaler Asset Management, Inc. | 272,580 | $4.30M | 0.02% | +196,000+255.9% | Added |
| State of Wisconsin Investment Board | 255,700 | $4.03M | 0.01% | +160,334+168.1% | Added |
| Castleark Management LLC | 250,060 | $3.95M | 0.17% | +250,060 | New |
| Redwood Investments, LLC | 226,299 | $3.57M | 0.93% | −503,124−69.0% | Reduced |
| Goldman Sachs Group Inc | 222,407 | $3.51M | 0.00% | −143,129−39.2% | Reduced |
| Kennedy Capital Management, Inc. | 220,268 | $3.48M | 0.08% | −347−0.2% | Reduced |
| Bank of New York Mellon Corp | 218,168 | $3.44M | 0.00% | +10,106+4.9% | Added |
| Invesco Ltd. | 216,123 | $3.41M | 0.00% | +216,123 | New |
| Susquehanna International Group, LLP | 212,774 | $3.36M | 0.01% | +129,717+156.2% | Added |
| UBS Group AG | 205,817 | $3.25M | 0.00% | +24,413+13.5% | Added |
| EAM Investors, LLC | 201,498 | $3.18M | 0.57% | +201,498 | New |
| Deutsche Bank AG | 200,793 | $3.17M | 0.00% | +137,663+218.1% | Added |
| 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 |
| Jane Street Group, LLC | 174,831 | $2.76M | 0.00% | +174,831 | New |
| Point72 Asset Management, L.P. | 163,411 | $2.58M | 0.01% | −411,822−71.6% | Reduced |
| Charles Schwab Investment Management Inc | 146,742 | $2.32M | 0.00% | −2,416−1.6% | Reduced |
| Greenwood Capital Associates LLC | 144,984 | $2.29M | 0.30% | −10,531−6.8% | Reduced |
| Clear Sky Advisers, LLC | 139,343 | $2.20M | 1.03% | +139,343 | New |
| Redwood Grove Capital, LLC | 133,210 | $2.10M | 0.78% | 00.0% | Unchanged |
| Potomac Capital Management, Inc. | 117,226 | $1.85M | 2.65% | 00.0% | Unchanged |
| Legato Capital Management LLC | 107,252 | $1.69M | 0.22% | 00.0% | Unchanged |
| CastleKnight Management LP | 105,400 | $1.66M | 0.27% | −204,800−66.0% | Reduced |
| Swiss National Bank | 103,700 | $1.64M | 0.00% | −11,900−10.3% | Reduced |
| Jackson Creek Investment Advisors LLC | 101,245 | $1.60M | 0.61% | +101,245 | New |
| Credit Suisse AG | 100,220 | $1.58M | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 98,216 | $1.55M | 0.00% | +45,408+86.0% | Added |
| Bouvel Investment Partners, LLC | 94,318 | $1.49M | 0.70% | +3,929+4.3% | Added |
| Advisory Research Inc | 87,936 | $1.39M | 0.21% | +62,112+240.5% | Added |
| Davy Global Fund Management Ltd | 86,852 | $1.37M | 0.16% | +86,852 | New |
| SEI Investments Co | 86,714 | $1.37M | 0.00% | +58,631+208.8% | Added |
| Allspring Global Investments Holdings, LLC | 84,758 | $1.34M | 0.00% | −11,276−11.7% | Reduced |
| Barclays PLC | 80,603 | $1.27M | 0.00% | +62,120+336.1% | Added |
| Rhumbline Advisers | 79,782 | $1.26M | 0.00% | +3,665+4.8% | Added |
| Semanteon Capital Management, LP | 76,761 | $1.21M | 0.82% | +76,761 | New |
| Hartree Partners, LP | 75,001 | $1.18M | 0.43% | −125,000−62.5% | Reduced |
| American Century Companies Inc | 73,285 | $1.16M | 0.00% | +40,921+126.4% | Added |
| Marex Group plc | 65,000 | $1.03M | 0.04% | +65,000 | New |
| Strategic Wealth Partners, Ltd. | 63,675 | $1.00M | 0.12% | −4,663−6.8% | Reduced |
| Algert Global LLC | 61,234 | $966.3K | 0.04% | −447,560−88.0% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 64,749 | $958.3K | 0.00% | −19,508−23.2% | Reduced |
| UBS Asset Management Americas Inc | 57,840 | $912.7K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 55,305 | $872.7K | 0.00% | −2,401−4.2% | Reduced |
| Raymond James & Associates | 52,399 | $826.9K | 0.00% | +52,399 | New |
| Alliancebernstein L.P. | 50,890 | $803.0K | 0.00% | +5,480+12.1% | Added |
| Principal Financial Group Inc | 48,232 | $761.1K | 0.00% | −3,924−7.5% | Reduced |
| Legal & General Group Plc | 44,779 | $706.6K | 0.00% | −6,538−12.7% | Reduced |
| Woodmont Investment Counsel LLC | 41,600 | $656.5K | 0.06% | −5,500−11.7% | Reduced |
| ARS Investment Partners, LLC | 41,479 | $654.5K | 0.07% | +5,083+14.0% | Added |
| Russell Investments Group, Ltd. | 37,773 | $596.1K | 0.00% | −43,837−53.7% | Reduced |
| JPMorgan Chase & Co | 34,332 | $541.8K | 0.00% | −626−1.8% | Reduced |
| Bank of America Corp | 31,654 | $499.5K | 0.00% | −30,682−49.2% | Reduced |
| Janus Henderson Group PLC | 30,805 | $486.3K | 0.00% | −54−0.2% | Reduced |
| Los Angeles Capital Management LLC | 28,626 | $451.7K | 0.00% | +28,626 | New |
| Abbot Financial Management, Inc. | 28,104 | $443.5K | 0.27% | 00.0% | Unchanged |
| MetLife Investment Management | 26,511 | $418.3K | 0.00% | 00.0% | Unchanged |
| American International Group, Inc. | 25,403 | $400.9K | 0.00% | −103−0.4% | Reduced |
| Franklin Resources Inc | 24,697 | $389.7K | 0.00% | +124+0.5% | Added |
| Royal Bank of Canada | 24,175 | $382.0K | 0.00% | +13,935+136.1% | Added |
| Diametric Capital, LP | 24,193 | $381.8K | 0.23% | −70,856−74.5% | Reduced |
| Thompson Davis & Co., Inc. | 24,150 | $381.1K | 0.32% | +3,100+14.7% | Added |
| Mesirow Financial Investment Management, Inc. | 27,125 | $370.5K | 0.01% | −11,666−30.1% | Reduced |