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