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Livermore
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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 2023

Institutional positions in Aspen Aerogels Inc as of Mar 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
156
−7 vs. Q4 2022
Shares held
67.2M
−29.3K (0.0%) vs. Q4 2022
Total value
$498.6M
−$293.8M (−37.1%) vs. Q4 2022
New holders
24
81 more added
Sold out
31
28 more reduced

1 institution that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2022: 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.

Institutional holdersQ1 2023: 156 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 2023: $498.6M
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 2023

Shares, value and share of portfolio for each institution holding Aspen Aerogels Inc; share changes are against Q4 2022.

Institutions holding ASPN in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Levin Capital Strategies, L.P.30,613$228.1K0.03%−4,387−12.5%Reduced
Versor Investments LP28,200$210.1K0.03%+28,200New
Highland Capital Management Fund Advisors, L.P.28,050$209.0K0.02%+11,000+64.5%Added
MetLife Investment Management26,511$197.5K0.00%+9,939+60.0%Added
Barclays PLC25,426$189.4K0.00%+17,073+204.4%Added
XTX Topco Ltd24,415$181.9K0.04%+24,415New
American International Group, Inc.24,259$180.7K0.00%+9,546+64.9%Added
SEI Investments Co23,898$178.0K0.00%+23,898New
Legal & General Group Plc23,228$173.0K0.00%+3,631+18.5%Added
Tilt Investment Management Holdings, PBC22,413$161.6K0.12%00.0%Unchanged
Invesco Ltd.18,142$135.2K0.00%+3,949+27.8%Added
Voya Investment Management LLC17,562$130.8K0.00%+5,937+51.1%Added
Arizona State Retirement System17,256$128.6K0.00%+6,986+68.0%Added
Thompson Davis & Co., Inc.16,350$121.8K0.16%+16,350New
Flputnam Investment Management Co16,161$120.4K0.00%00.0%Unchanged
Jane Street Group, LLC15,178$113.1K0.00%−6,274−29.2%Reduced
Innovis Asset Management LLC14,413$107.4K0.04%+62+0.4%Added
State Board of Administration of Florida Retirement System14,118$105.2K0.00%00.0%Unchanged
Mirae Asset Global Investments Co., Ltd.13,451$100.2K0.00%00.0%Unchanged
Connor, Clark & Lunn Investment Management Ltd.13,394$99.8K0.00%+13,394New
Royal Bank of Canada12,530$93.0K0.00%−432−3.3%Reduced
Aquatic Capital Management LLC12,300$92.0K0.01%+12,300New
Manufacturers Life Insurance Company, The12,325$91.8K0.00%00.0%Unchanged
Envestnet Asset Management Inc11,040$82.2K0.00%+618+5.9%Added
Alliancebernstein L.P.10,900$81.2K0.00%−6,200−36.3%Reduced
Mariner, LLC10,793$80.0K0.00%−2,469−18.6%Reduced
Wells Fargo & Company10,348$77.1K0.00%+9,748+1,624.7%Added
Choate Investment Advisors10,000$74.5K0.00%00.0%Unchanged
Zurcher Kantonalbank (Zurich Cantonalbank)9,364$69.8K0.00%+4,716+101.5%Added
Quent Capital, LLC8,000$57.9K0.01%00.0%Unchanged
Tower Research Capital LLC (TRC)7,360$54.0K0.00%+6,041+458.0%Added
Harel Insurance Investments & Financial Services Ltd.7,070$53.0K0.00%−56−0.8%Reduced
Citigroup Inc6,825$50.8K0.00%−428−5.9%Reduced
Amalgamated Bank5,995$45.0K0.00%+1,200+25.0%Added
Ameritas Investment Partners, Inc.4,036$30.1K0.00%+2,230+123.5%Added
First PREMIER Bank4,000$30.0K0.01%00.0%Unchanged
Group One Trading, L.P.4,019$29.9K0.00%−6,164−60.5%Reduced
Banque Cantonale Vaudoise3,341$25.0K0.00%+3,341New
Metropolitan Life Insurance Co2,728$20.3K0.00%+793+41.0%Added
Performa Ltd (US), LLC850$6.33K0.00%+850New
US Bancorp637$4.75K0.00%+224+54.2%Added
The PNC Financial Services Group, Inc.600$4.47K0.00%00.0%Unchanged
Colonial Trust Co517$3.85K0.00%+96+22.8%Added
IFP Advisors, Inc495$2.50K0.00%00.0%Unchanged
First Horizon Advisors, Inc.276$2.06K0.00%+1+0.4%Added
HighMark Wealth Management LLC250$1.86K0.00%−9,500−97.4%Reduced
HHM Wealth Advisors, LLC200$1.49K0.00%00.0%Unchanged
GWM Advisors LLC113$8430.00%+15+15.3%Added
Parallel Advisors, LLC78$5810.00%−219−73.7%Reduced
Creative Planning72$5370.00%+72New
Signaturefd, LLC64$4770.00%00.0%Unchanged
Colonial Trust Advisors50$3730.00%+25+100.0%Added
Ahrens Investment Partners LLC50$3730.00%+50New
WealthPLAN Partners, LLC10$750.00%+10New
TFC Financial Management2$150.00%00.0%Unchanged
Covestor Ltd9$00.00%00.0%Unchanged
Hood River Capital Management LLC0$00.00%−1,052,013−100.0%Sold out
AIGH Capital Management LLC0$00.00%−1,000,000−100.0%Sold out
Arosa Capital Management LP0$00.00%−586,715−100.0%Sold out
G2 Investment Partners Management LLC0$00.00%−571,000−100.0%Sold out
Monashee Investment Management LLC0$00.00%−505,000−100.0%Sold out
Jetstream Capital LLC0$00.00%−430,000−100.0%Sold out
Balyasny Asset Management LLC0$00.00%−429,901−100.0%Sold out
Ghisallo Capital Management LLC0$00.00%−300,000−100.0%Sold out
EVR Research LP0$00.00%−275,000−100.0%Sold out
Worth Venture Partners, LLC0$00.00%−250,250−100.0%Sold out
Gilder Gagnon Howe & Co LLC0$00.00%−100,828−100.0%Sold out
Manatuck Hill Partners, LLC0$00.00%−75,000−100.0%Sold out
Adage Capital Partners GP, L.L.C.0$00.00%−64,218−100.0%Sold out
Occudo Quantitative Strategies LP0$00.00%−47,369−100.0%Sold out
Guggenheim Capital LLC0$00.00%−36,468−100.0%Sold out
Advisory Research Inc0$00.00%−23,500−100.0%Sold out
Schonfeld Strategic Advisors LLC0$00.00%−21,800−100.0%Sold out
Quadrature Capital Ltd0$00.00%−16,782−100.0%Sold out
Fox Run Management, L.L.C.0$00.00%−14,304−100.0%Sold out
Quantamental Technologies LLC0$00.00%−11,044−100.0%Sold out
Cutler Group LP0$00.00%−3,615−100.0%Sold out
Clear Street Markets LLC0$00.00%−3,387−100.0%Sold out
Picton Mahoney Asset Management0$00.00%−1,590−100.0%Sold out
Rockefeller Capital Management L.P.0$00.00%−436−100.0%Sold out
West Financial Advisors, LLC0$00.00%−100−100.0%Sold out
Manchester Capital Management LLC0$00.00%−69−100.0%Sold out
Quadrant Capital Group LLC0$00.00%−62−100.0%Sold out
Mendota Financial Group, LLC0$00.00%−47−100.0%Sold out
Lindbrook Capital, LLC0$00.00%−17−100.0%Sold out
Nisa Investment Advisors, LLC0$00.00%−39−100.0%Sold out
CWM, LLC0$00.00%−39−100.0%Sold out
Alpha Paradigm Partners, LLC––––Not filed