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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
Susquehanna International Group, LLP157,176$1.17M0.00%+91,213+138.3%Added
UBS Group AG162,620$1.21M0.00%+47,096+40.8%Added
Tudor Investment Corp Et Al174,584$1.30M0.02%+174,584New
Kennedy Capital Management, Inc.177,446$1.32M0.04%−1,751−1.0%Reduced
Trellus Management Company, LLC181,863$1.35M2.18%+35,400+24.2%Added
Bank of New York Mellon Corp185,139$1.38M0.00%+41,184+28.6%Added
Sargent Investment Group, LLC186,765$1.39M0.37%+38,305+25.8%Added
Palogic Value Management, L.P.193,600$1.44M0.71%+43,600+29.1%Added
Voloridge Investment Management, LLC225,487$1.68M0.01%+204,927+996.7%Added
Zevenbergen Capital Investments LLC228,947$1.71M0.05%−34,550−13.1%Reduced
Cubist Systematic Strategies, LLC255,019$1.90M0.02%+194,304+320.0%Added
Prescott Group Capital Management, L.L.C.260,766$1.94M0.45%−528,708−67.0%Reduced
Silvercrest Asset Management Group LLC284,816$2.12M0.02%+73,640+34.9%Added
Two Sigma Investments, LP310,291$2.31M0.01%−204,479−39.7%Reduced
UBS Asset Management Americas Inc339,741$2.53M0.00%+12,693+3.9%Added
Yaupon Capital Management LP349,492$2.60M0.41%−320,446−47.8%Reduced
CastleKnight Management LP351,600$2.62M0.67%+108,700+44.8%Added
Goldman Sachs Group Inc352,601$2.63M0.00%+95,051+36.9%Added
Deutsche Bank AG352,728$2.63M0.00%+14,277+4.2%Added
Clear Sky Advisers, LLC358,700$2.67M0.68%+125,700+53.9%Added
Algert Global LLC367,264$2.74M0.13%+329,731+878.5%Added
Point72 Asset Management, L.P.388,775$2.90M0.01%−438,069−53.0%Reduced
ExodusPoint Capital Management, LP415,411$3.10M0.04%−194,127−31.8%Reduced
Morgan Stanley418,633$3.12M0.00%+87,766+26.5%Added
Assenagon Asset Management S.A.429,352$3.20M0.01%+125,513+41.3%Added
Two Sigma Advisers, LP435,700$3.25M0.01%−46,100−9.6%Reduced
Baird Financial Group, Inc.457,014$3.40M0.01%−21,655−4.5%Reduced
New York State Common Retirement Fund499,669$3.72M0.00%+115,973+30.2%Added
Northern Trust Corp517,518$3.86M0.00%+135,398+35.4%Added
J. Goldman & Co LP534,665$3.98M0.23%−439,801−45.1%Reduced
Redwood Investments, LLC602,736$4.49M0.57%+8,313+1.4%Added
Driehaus Capital Management LLC623,845$4.65M0.07%−1,197,535−65.7%Reduced
Citadel Advisors LLC685,519$5.11M0.01%+447,452+188.0%Added
Essex Investment Management Co LLC711,007$5.30M0.77%+16,378+2.4%Added
Ardsley Advisory Partners LP746,000$5.56M1.22%+437,500+141.8%Added
Federated Hermes, Inc.750,000$5.59M0.01%00.0%Unchanged
Ameriprise Financial Inc856,863$6.38M0.00%+276,345+47.6%Added
Penn Capital Management Co Inc893,567$6.69M0.67%+203,086+29.4%Added
Marshall Wace, LLP918,605$6.84M0.02%+918,605New
Royce & Associates LP972,383$7.24M0.07%+231,100+31.2%Added
Geode Capital Management, LLC977,424$7.28M0.00%+204,828+26.5%Added
Nuveen Asset Management, LLC989,176$7.37M0.00%+683,098+223.2%Added
State Street Corp1,187,695$8.85M0.00%+378,251+46.7%Added
Millennium Management LLC1,270,740$9.47M0.01%+231,770+22.3%Added
Samjo Capital LLC1,320,000$9.83M8.92%+415,000+45.9%Added
Cowen Prime Advisors LLC1,666,800$10.4M4.18%+614,875+58.5%Added
AWM Investment Company, Inc.1,620,856$12.1M1.63%+320,856+24.7%Added
Telemark Asset Management, LLC1,690,000$12.6M1.87%−280,000−14.2%Reduced
Encompass Capital Advisors LLC1,935,757$14.4M0.88%−1,038,992−34.9%Reduced
Needham Investment Management LLC2,107,550$15.7M2.71%+574,716+37.5%Added
FMR LLC2,334,537$17.4M0.00%+52,898+2.3%Added
George Kaiser Family Foundation3,167,322$23.6M3.81%00.0%Unchanged
Oaktop Capital Management II, L.P.3,194,758$23.8M4.00%00.0%Unchanged
Vanguard Group Inc3,435,863$25.6M0.00%+274,413+8.7%Added
BlackRock Inc.3,487,832$26.0M0.00%+1,086,394+45.2%Added
Kim, LLC15,780,426$117.6M8.19%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