Aspen AerogelsASPN
13F holders, Q4 2024 (December 31)231holders −12
51new positions
69sold out
5famous investors
$11.89avg. 13F price*
At the end of Q4 2024, 231 institutions reported holding Aspen Aerogels Inc. (ASPN) in their 13F filings, down 12 from Q3 2024. 51 opened new positions and 69 sold out. The largest holders were Kim, LLC ($145.9M), BlackRock, Inc. ($59.4M) and Vanguard Group Inc. ($51.8M). 5 famous investors held it, including Steve Cohen (0.0% of Point72 Asset Management's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Aspen Aerogels Inc.
- CUSIP
- 04523Y105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 51 | $92.5M |
| Exits | 69 | $248.4M |
All 13F filers, Q3 2024 → Q4 2024: 17,576,138 shares bought and 14,762,620 shares sold, net +2,813,518 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 231 holders
| Kim, LLC | 25.43% | No change | 12,280,426 | $145.9M |
| BlackRock, Inc. | 0.00% | Add +7.2% | 5,001,205 | $59.4M |
| Vanguard Group Inc. | 0.00% | Add +5.5% | 4,360,246 | $51.8M |
| Oaktop Capital Management Ii, L.P. | 5.55% | Add +5.7% | 3,740,525 | $44.4M |
| George Kaiser Family Foundation | 5.54% | No change | 3,167,322 | $37.6M |
| Needham Investment Management LLC | 2.19% | Add +5.2% | 2,389,700 | $28.4M |
| Dimensional Fund Advisors LP | 0.01% | Add +25.5% | 2,018,631 | $24.0M |
| Telemark Asset Management, LLC | 2.24% | Add +26.8% | 1,892,424 | $22.5M |
| Millennium Management | 0.02% | Add +4757.8% | 1,622,022 | $19.3M |
| State Street Corp. | 0.00% | Add +5.5% | 1,487,462 | $17.7M |
| Geode Capital Management, LLC | 0.00% | Add +5.6% | 1,464,163 | $17.4M |
| Cubist Systematic Strategies, LLC | 0.27% | New | 1,393,213 | $16.6M |
| FMR LLC | 0.00% | Reduce -69.7% | 1,226,073 | $14.6M |
| AWM Investment Company, Inc. | 1.75% | Add +2.9% | 1,208,686 | $14.4M |
| Point72 Asset Management | 0.04% | New | 1,104,549 | $13.1M |
| American Century Companies Inc. | 0.01% | Reduce -32.7% | 1,003,184 | $11.9M |
| Royce & Associates LP | 0.10% | Reduce -21.9% | 946,623 | $11.2M |
| Samjo Management, LLC | 3.92% | Reduce -2.4% | 874,650 | $10.4M |
| UniSuper Management Pty Ltd | 0.07% | Reduce -11.2% | 848,287 | $10.1M |
| Alyeska Investment Group, L.P. | 0.04% | New | 800,000 | $9.5M |
| Qube Research & Technologies Ltd | 0.02% | Add +5551.9% | 783,235 | $9.3M |
| Morgan Stanley | 0.00% | Reduce -6.1% | 775,331 | $9.2M |
| Dendur Capital LP | 1.05% | New | 775,000 | $9.2M |
| Renaissance Technologies | 0.01% | Add +472.4% | 766,400 | $9.1M |
| Goldman Sachs Group Inc. | 0.00% | Add +71.9% | 671,770 | $8.0M |
| Northern Trust Corp. | 0.00% | Add +13.7% | 641,050 | $7.6M |
| Federated Hermes, Inc. | 0.02% | Reduce -36.9% | 630,500 | $7.5M |
| Citadel Advisors | 0.01% | Add +56.9% | 624,230 | $7.4M |
| Two Sigma Investments, LP | 0.02% | Add +638.0% | 592,765 | $7.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +47.3% | 588,395 | $7.0M |
| Nuveen Asset Management, LLC | 0.00% | Reduce -24.1% | 562,303 | $6.7M |
| Rice Hall James & Associates, LLC | 0.36% | Add +3.6% | 554,202 | $6.6M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +7.9% | 549,709 | $6.5M |
| Frontier Capital Management Co. LLC | 0.06% | Reduce -25.8% | 525,738 | $6.2M |
| Ameriprise Financial Inc. | 0.00% | Add +17.8% | 524,501 | $6.2M |
| M&G PLC | 0.04% | New | 511,314 | $6.1M |
| First Trust Advisors LP | 0.01% | Add +78.4% | 492,507 | $5.9M |
| Mesirow Institutional Investment Management, Inc. | 0.45% | Add +2.4% | 488,595 | $5.8M |
| Sora Investors LLC | 0.64% | Add +289.8% | 487,245 | $5.8M |
| CastleKnight Management LP | 0.62% | New | 445,599 | $5.3M |
| Algert Global LLC | 0.12% | Add +244.8% | 440,471 | $5.2M |
| UBS Group AG | 0.00% | Add +232.1% | 435,843 | $5.2M |
| Prescott Group Capital Management, L.L.C. | 0.70% | New | 431,500 | $5.1M |
| Deutsche Bank AG | 0.00% | Add +37.0% | 415,391 | $4.9M |
| Squarepoint Ops LLC | 0.01% | Add +41.6% | 402,446 | $4.8M |
| Baird Financial Group, Inc. | 0.01% | Add +16.6% | 401,131 | $4.8M |
| Trexquant Investment LP | 0.06% | New | 400,664 | $4.8M |
| Sargent Investment Group, LLC | 0.77% | Add +14.7% | 371,049 | $4.7M |
| State of Wisconsin Investment Board | 0.01% | Add +21.9% | 284,408 | $3.4M |
| Caption Management, LLC | 0.13% | Add +333.7% | 262,610 | $3.1M |
| Ardsley Advisory Partners LP | 0.60% | Add +108.9% | 261,100 | $3.1M |
| Voloridge Investment Management, LLC | 0.01% | New | 260,027 | $3.1M |
| Essex Investment Management Co. LLC | 0.53% | Add +15.1% | 248,243 | $2.9M |
| Raymond James Financial Inc. | 0.00% | — | 244,854 | $2.9M |
| Jump Financial, LLC | 0.06% | Add +144.5% | 239,895 | $2.8M |
| Kennedy Capital Management LLC | 0.06% | Add +21.7% | 224,475 | $2.7M |
| Wells Fargo & Company | 0.00% | Add +158.6% | 216,049 | $2.6M |
| Bank of New York Mellon Corp | 0.00% | Add +9.3% | 189,884 | $2.3M |
| Oppenheimer & Co. Inc. | 0.03% | Add +77.0% | 181,528 | $2.2M |
| Susquehanna International Group, LLP | 0.00% | Reduce -67.3% | 167,209 | $2.0M |
| Engineers Gate Manager LP | 0.03% | New | 155,087 | $1.8M |
| Allspring Global Investments Holdings, LLC | 0.00% | Reduce -36.1% | 152,517 | $1.8M |
| Capital Fund Management S.A. | 0.02% | Add +100.4% | 151,404 | $1.8M |
| Redwood Grove Capital, LLC | 0.54% | No change | 147,705 | $1.8M |
| LMR Partners LLP | 0.04% | New | 141,785 | $1.7M |
| Schonfeld Strategic Advisors LLC | 0.01% | New | 138,700 | $1.6M |
| BNP Paribas Financial Markets | 0.00% | Add +645.4% | 135,584 | $1.6M |
| Graham Capital Management, L.P. | 0.08% | Add +107.7% | 131,475 | $1.6M |
| Palogic Value Management, L.P. | 0.63% | New | 130,000 | $1.5M |
| Swiss National Bank | 0.00% | Add +1.9% | 128,800 | $1.5M |
| Alps Advisors Inc. | 0.01% | Reduce -22.6% | 124,233 | $1.5M |
| IMC-Chicago, LLC | 0.04% | Add +310.9% | 121,667 | $1.4M |
| Bryce Point Capital, LLC | 0.41% | — | 120,173 | $1.4M |
| Bank of America Corp. | 0.00% | Reduce -4.1% | 119,873 | $1.4M |
| Aquatic Capital Management LLC | 0.04% | Add +67.0% | 117,212 | $1.4M |
| Barclays PLC | 0.00% | Add +16.8% | 107,764 | $1.3M |
| JPMorgan Chase & Co. | 0.00% | Add +311.0% | 105,591 | $1.3M |
| Firsthand Capital Management, Inc. | 2.60% | No change | 105,000 | $1.2M |
| DLD Asset Management, LP | 1.61% | Reduce -84.2% | 104,253 | $1.2M |
| Tudor Investment Corporation | 0.01% | New | 101,479 | $1.2M |
| Rhumbline Advisers | 0.00% | Add +2.8% | 93,044 | $1.1M |
| Group One Trading LLC | 0.04% | Add +148.3% | 87,832 | $1.0M |
| Fox Run Management, L.L.C. | 0.19% | New | 87,573 | $1.0M |
| Citigroup Inc. | 0.00% | Add +35.5% | 87,559 | $1.0M |
| Bridgewater Advisors Inc. | 0.11% | Add +6.5% | 82,352 | $1.0M |
| XTX Topco Ltd | 0.09% | New | 85,747 | $1.0M |
| Jane Street Group, LLC | 0.00% | Add +62.8% | 85,462 | $1.0M |
| HRT Financial LP | 0.01% | Reduce -2.4% | 81,702 | $970K |
| Walleye Capital LLC | 0.01% | Add +597.8% | 80,805 | $960K |
| Storebrand Asset Management As | 0.00% | New | 68,846 | $818K |
| Dynamic Technology Lab Private Ltd | 0.13% | New | 65,471 | $778K |
| Wellington Management Group LLP | 0.00% | Reduce -57.0% | 64,700 | $769K |
| Quantbot Technologies LP | 0.03% | New | 64,672 | $768K |
| Bouvel Investment Partners, LLC | 0.28% | Reduce -29.3% | 64,363 | $765K |
| Legal & General Group Plc | 0.00% | Add +0.6% | 63,538 | $755K |
| Cannell & Spears LLC | 0.02% | Add +529.3% | 62,930 | $748K |
| NewEdge Advisors, LLC | 0.00% | Reduce -6.3% | 61,088 | $726K |
| California State Teachers Retirement System | 0.00% | Add +0.4% | 61,045 | $725K |
| Two Sigma Advisers, LP | 0.00% | New | 61,000 | $725K |
| Campbell & CO Investment Adviser LLC | 0.06% | New | 60,649 | $721K |
"% of holder's portfolio" is ASPN's weight in each manager's 13F, not the share of Aspen Aerogels Inc. the manager owns.