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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, Q1 2021

Institutional positions in Aspen Aerogels Inc as of Mar 31, 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
85
No complete 13F data for Q4 2020
Shares held
23.7M
No complete 13F data for Q4 2020
Total value
$482.2M
No complete 13F data for Q4 2020

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.

Institutional holdersQ1 2021: 85 institutions
Q1 2021: 85 institutionsQ2 2021: 115 institutionsQ3 2021: 130 institutionsQ4 2021: 159 institutionsQ1 2022: 145 institutionsQ2 2022: 148 institutionsQ3 2022: 140 institutionsQ4 2022: 164 institutionsQ1 2023: 156 institutionsQ2 2023: 159 institutionsQ3 2023: 159 institutionsQ4 2023: 170 institutionsQ1 2024: 167 institutionsQ2 2024: 222 institutionsQ3 2024: 243 institutionsQ4 2024: 231 institutionsQ1 2025: 221 institutionsQ2 2025: 182 institutionsQ3 2025: 204 institutionsQ4 2025: 183 institutionsQ1 2026: 166 institutionsQ2 2026: 179 institutions
Value heldQ1 2021: $482.2M
Q1 2021: $482.2MQ2 2021: $849.9MQ3 2021: $1.27BQ4 2021: $1.42BQ1 2022: $1.09BQ2 2022: $366.3MQ3 2022: $344.0MQ4 2022: $793.4MQ1 2023: $498.6MQ2 2023: $524.6MQ3 2023: $582.9MQ4 2023: $1.18BQ1 2024: $1.31BQ2 2024: $1.69BQ3 2024: $1.93BQ4 2024: $868.2MQ1 2025: $455.4MQ2 2025: $423.4MQ3 2025: $496.8MQ4 2025: $199.0MQ1 2026: $236.7MQ2 2026: $464.9M
Institutions holding ASPN and their total value by quarter
QuarterHoldersValue
Q2 2026179$464.9M
Q1 2026166$236.7M
Q4 2025183$199.0M
Q3 2025204$496.8M
Q2 2025182$423.4M
Q1 2025221$455.4M
Q4 2024231$868.2M
Q3 2024243$1.93B
Q2 2024222$1.69B
Q1 2024167$1.31B
Q4 2023170$1.18B
Q3 2023159$582.9M
Q2 2023159$524.6M
Q1 2023156$498.6M
Q4 2022164$793.4M
Q3 2022140$344.0M
Q2 2022148$366.3M
Q1 2022145$1.09B
Q4 2021159$1.42B
Q3 2021130$1.27B
Q2 2021115$849.9M
Q1 202185$482.2M

Institutions, Q1 2021

Shares, value and share of portfolio for each institution holding Aspen Aerogels Inc.

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding ASPN in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
George Kaiser Family Foundation3,167,322$64.4M13.43%––
Oaktop Capital Management II, L.P.2,939,758$59.8M9.22%––
Telemark Asset Management, LLC2,025,000$41.2M3.49%––
BlackRock Inc.1,856,748$37.8M0.00%––
Vanguard Group Inc1,200,320$24.4M0.00%––
Needham Investment Management LLC1,103,000$22.4M3.07%––
Driehaus Capital Management LLC869,910$17.7M0.26%––
Next Century Growth Investors LLC673,412$13.7M1.04%––
AIGH Capital Management LLC655,819$13.3M4.59%––
Price T Rowe Associates Inc596,767$12.1M0.00%––
G2 Investment Partners Management LLC556,904$11.3M1.82%––
Essex Investment Management Co LLC540,453$11.0M1.34%––
State Street Corp524,197$10.7M0.00%––
Royce & Associates LP486,772$9.90M0.07%––
FMR LLC420,300$8.55M0.00%––
Renaissance Technologies LLC414,951$8.44M0.01%––
Dimensional Fund Advisors LP407,158$8.28M0.00%––
Cowen Prime Services LLC389,500$7.92M3.00%––
Geode Capital Management, LLC382,455$7.78M0.00%––
Samjo Capital LLC345,000$7.02M5.21%––
Baird Financial Group, Inc.337,806$6.87M0.02%––
Granite Point Capital Management, L.P.304,076$6.18M1.81%––
Harvey Partners, LLC275,000$5.59M4.13%––
Morgan Stanley247,805$5.04M0.00%––
Silvercrest Asset Management Group LLC244,070$4.96M0.03%––
Northern Trust Corp219,155$4.46M0.00%––
Roubaix Capital, LLC190,840$3.88M2.62%––
Worth Venture Partners, LLC146,687$2.98M1.46%––
Kennedy Capital Management, Inc.139,734$2.84M0.06%––
EAM Investors, LLC129,245$2.63M0.40%––
Susquehanna International Group, LLP125,643$2.56M0.00%––
Calamos Advisors LLC124,368$2.53M0.01%––
Trellus Management Company, LLC105,563$2.15M2.47%––
EAM Global Investors LLC92,644$1.88M0.52%––
Nuveen Asset Management, LLC90,152$1.83M0.00%––
Russell Investments Group, Ltd.89,512$1.82M0.00%––
Deutsche Bank AG88,990$1.81M0.00%––
Millennium Management LLC87,484$1.78M0.00%––
Bank of New York Mellon Corp77,260$1.57M0.00%––
Greenwood Capital Associates LLC73,230$1.49M0.23%––
Jefferies Group LLC68,550$1.39M0.03%––
Panagora Asset Management Inc67,201$1.37M0.01%––
JPMorgan Chase & Co66,321$1.35M0.00%––
Goldman Sachs Group Inc63,668$1.29M0.00%––
Shay Capital LLC59,500$1.21M0.34%––
Charles Schwab Investment Management Inc54,232$1.10M0.00%––
Citadel Advisors LLC49,199$1.00M0.00%––
Alpha Paradigm Partners, LLC45,015$916.0K0.36%––
California Public Employees Retirement System41,582$846.0K0.00%––
Nomura Holdings Inc40,000$809.0K0.01%––
Firsthand Capital Management, Inc.35,000$712.0K0.20%––
Bank of America Corp31,526$642.0K0.00%––
California State Teachers Retirement System31,148$634.0K0.00%––
Simplex Trading, LLC29,904$608.0K0.03%––
UBS Group AG26,173$532.0K0.00%––
Rhumbline Advisers25,176$512.0K0.00%––
Bank of Montreal25,619$503.0K0.00%––
AQR Capital Management LLC23,442$477.0K0.00%––
Wells Fargo & Company23,007$468.0K0.00%––
Millrace Asset Group, Inc.22,045$448.0K0.24%––
New York State Common Retirement Fund18,700$380.0K0.00%––
Barclays PLC17,268$352.0K0.00%––
Woodmont Investment Counsel LLC12,185$248.0K0.04%––
Manufacturers Life Insurance Company, The12,163$247.0K0.00%––
American International Group, Inc.12,039$245.0K0.00%––
MetLife Investment Management9,340$190.0K0.00%––
BNP Paribas Arbitrage, SA8,320$169.2K0.00%––
Group One Trading, L.P.8,012$163.0K0.00%––
HighMark Wealth Management LLC8,000$163.0K0.13%––
Metropolitan Life Insurance Co6,129$124.7K0.00%––
SG3 Management, LLC6,000$122.0K0.04%––
Meeder Asset Management Inc4,834$100.0K0.01%––
Dorsey Wright & Associates2,115$43.0K0.51%––
Legal & General Group Plc1,863$38.0K0.00%––
Ameritas Investment Partners, Inc.1,806$37.0K0.00%––
Royal Bank of Canada1,512$31.0K0.00%––
Citigroup Inc1,368$28.0K0.00%––
Macquarie Group Ltd1,052$21.0K0.00%––
Tower Research Capital LLC (TRC)818$17.0K0.00%––
IFP Advisors, Inc800$16.0K0.00%––
Reilly Financial Advisors, LLC400$8.00K0.00%––
Kelly Financial Services LLC140$2.85K0.00%––
Advisor Group Holdings, Inc.115$2.00K0.00%––
Geneos Wealth Management Inc.101$1.00K0.00%––
TFC Financial Management2$00.00%––