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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
Kim, LLC15,780,426$117.6M8.19%00.0%Unchanged
BlackRock Inc.3,487,832$26.0M0.00%+1,086,394+45.2%Added
Vanguard Group Inc3,435,863$25.6M0.00%+274,413+8.7%Added
Oaktop Capital Management II, L.P.3,194,758$23.8M4.00%00.0%Unchanged
George Kaiser Family Foundation3,167,322$23.6M3.81%00.0%Unchanged
FMR LLC2,334,537$17.4M0.00%+52,898+2.3%Added
Needham Investment Management LLC2,107,550$15.7M2.71%+574,716+37.5%Added
Encompass Capital Advisors LLC1,935,757$14.4M0.88%−1,038,992−34.9%Reduced
Telemark Asset Management, LLC1,690,000$12.6M1.87%−280,000−14.2%Reduced
AWM Investment Company, Inc.1,620,856$12.1M1.63%+320,856+24.7%Added
Cowen Prime Advisors LLC1,666,800$10.4M4.18%+614,875+58.5%Added
Samjo Capital LLC1,320,000$9.83M8.92%+415,000+45.9%Added
Millennium Management LLC1,270,740$9.47M0.01%+231,770+22.3%Added
State Street Corp1,187,695$8.85M0.00%+378,251+46.7%Added
Nuveen Asset Management, LLC989,176$7.37M0.00%+683,098+223.2%Added
Geode Capital Management, LLC977,424$7.28M0.00%+204,828+26.5%Added
Royce & Associates LP972,383$7.24M0.07%+231,100+31.2%Added
Marshall Wace, LLP918,605$6.84M0.02%+918,605New
Penn Capital Management Co Inc893,567$6.69M0.67%+203,086+29.4%Added
Ameriprise Financial Inc856,863$6.38M0.00%+276,345+47.6%Added
Federated Hermes, Inc.750,000$5.59M0.01%00.0%Unchanged
Ardsley Advisory Partners LP746,000$5.56M1.22%+437,500+141.8%Added
Essex Investment Management Co LLC711,007$5.30M0.77%+16,378+2.4%Added
Citadel Advisors LLC685,519$5.11M0.01%+447,452+188.0%Added
Driehaus Capital Management LLC623,845$4.65M0.07%−1,197,535−65.7%Reduced
Redwood Investments, LLC602,736$4.49M0.57%+8,313+1.4%Added
J. Goldman & Co LP534,665$3.98M0.23%−439,801−45.1%Reduced
Northern Trust Corp517,518$3.86M0.00%+135,398+35.4%Added
New York State Common Retirement Fund499,669$3.72M0.00%+115,973+30.2%Added
Baird Financial Group, Inc.457,014$3.40M0.01%−21,655−4.5%Reduced
Two Sigma Advisers, LP435,700$3.25M0.01%−46,100−9.6%Reduced
Assenagon Asset Management S.A.429,352$3.20M0.01%+125,513+41.3%Added
Morgan Stanley418,633$3.12M0.00%+87,766+26.5%Added
ExodusPoint Capital Management, LP415,411$3.10M0.04%−194,127−31.8%Reduced
Point72 Asset Management, L.P.388,775$2.90M0.01%−438,069−53.0%Reduced
Algert Global LLC367,264$2.74M0.13%+329,731+878.5%Added
Clear Sky Advisers, LLC358,700$2.67M0.68%+125,700+53.9%Added
Deutsche Bank AG352,728$2.63M0.00%+14,277+4.2%Added
Goldman Sachs Group Inc352,601$2.63M0.00%+95,051+36.9%Added
CastleKnight Management LP351,600$2.62M0.67%+108,700+44.8%Added
Yaupon Capital Management LP349,492$2.60M0.41%−320,446−47.8%Reduced
UBS Asset Management Americas Inc339,741$2.53M0.00%+12,693+3.9%Added
Two Sigma Investments, LP310,291$2.31M0.01%−204,479−39.7%Reduced
Silvercrest Asset Management Group LLC284,816$2.12M0.02%+73,640+34.9%Added
Prescott Group Capital Management, L.L.C.260,766$1.94M0.45%−528,708−67.0%Reduced
Cubist Systematic Strategies, LLC255,019$1.90M0.02%+194,304+320.0%Added
Zevenbergen Capital Investments LLC228,947$1.71M0.05%−34,550−13.1%Reduced
Voloridge Investment Management, LLC225,487$1.68M0.01%+204,927+996.7%Added
Palogic Value Management, L.P.193,600$1.44M0.71%+43,600+29.1%Added
Sargent Investment Group, LLC186,765$1.39M0.37%+38,305+25.8%Added
Bank of New York Mellon Corp185,139$1.38M0.00%+41,184+28.6%Added
Trellus Management Company, LLC181,863$1.35M2.18%+35,400+24.2%Added
Kennedy Capital Management, Inc.177,446$1.32M0.04%−1,751−1.0%Reduced
Tudor Investment Corp Et Al174,584$1.30M0.02%+174,584New
UBS Group AG162,620$1.21M0.00%+47,096+40.8%Added
Susquehanna International Group, LLP157,176$1.17M0.00%+91,213+138.3%Added
Charles Schwab Investment Management Inc136,834$1.02M0.00%+43,288+46.3%Added
Redwood Grove Capital, LLC133,210$992.4K0.47%00.0%Unchanged
Dimensional Fund Advisors LP130,805$974.5K0.00%−491−0.4%Reduced
Swiss National Bank128,500$957.3K0.00%−7,400−5.4%Reduced
Greenwood Capital Associates LLC121,780$907.3K0.13%+20,214+19.9%Added
Dynamic Technology Lab Private Ltd118,462$883.0K0.08%+118,462New
Boothbay Fund Management, LLC110,074$820.1K0.02%+12,202+12.5%Added
State of Wisconsin Investment Board109,334$814.5K0.00%+6,962+6.8%Added
Bank of America Corp109,244$813.9K0.00%+100,232+1,112.2%Added
Potomac Capital Management, Inc.105,000$782.3K0.95%00.0%Unchanged
Allspring Global Investments Holdings, LLC100,052$745.4K0.00%+22,643+29.3%Added
Trexquant Investment LP96,920$722.1K0.02%+96,920New
Bridgewater Advisors Inc.94,000$700.3K0.15%+5,000+5.6%Added
Squarepoint Ops LLC88,548$659.7K0.00%+88,548New
Walleye Capital LLC79,912$595.3K0.01%+79,912New
D. E. Shaw & Co., Inc.77,788$579.5K0.00%−141,488−64.5%Reduced
Caption Management, LLC74,000$551.3K0.12%00.0%Unchanged
Credit Suisse AG72,708$541.7K0.00%+9,452+14.9%Added
California State Teachers Retirement System71,007$529.0K0.00%+7,178+11.2%Added
BNP Paribas Arbitrage, SA69,723$519.4K0.00%+67,951+3,834.7%Added
Journey Strategic Wealth LLC67,000$499.1K0.05%+67,000New
JPMorgan Chase & Co66,806$498.0K0.00%+23,672+54.9%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.60,939$454.0K0.00%+2,836+4.9%Added
Los Angeles Capital Management LLC59,371$442.3K0.00%−42,784−41.9%Reduced
Woodmont Investment Counsel LLC59,285$441.7K0.05%+21,266+55.9%Added
Russell Investments Group, Ltd.58,982$439.4K0.00%+29,292+98.7%Added
Diametric Capital, LP53,655$399.7K0.19%+3,957+8.0%Added
Simplex Trading, LLC53,586$399.0K0.02%+36,667+216.7%Added
Legato Capital Management LLC51,449$383.3K0.07%00.0%Unchanged
Advisor Group Holdings, Inc.49,284$367.2K0.00%+17,032+52.8%Added
ARS Investment Partners, LLC49,104$365.8K0.04%+11,642+31.1%Added
Rhumbline Advisers48,777$363.0K0.00%+10,344+26.9%Added
Strategic Wealth Partners, Ltd.47,730$355.6K0.05%+19,803+70.9%Added
Qube Research & Technologies Ltd46,642$347.5K0.00%+46,642New
Quantbot Technologies LP38,080$283.7K0.02%+5,709+17.6%Added
Axq Capital, LP35,997$268.2K0.11%+35,997New
Firsthand Capital Management, Inc.35,000$260.8K0.28%00.0%Unchanged
Bayesian Capital Management, LP33,700$251.1K0.03%+33,700New
Nebula Research & Development LLC33,634$250.6K0.44%+33,634New
Renaissance Technologies LLC33,500$250.0K0.00%−89,200−72.7%Reduced
Prelude Capital Management, LLC33,155$247.0K0.02%+5,700+20.8%Added
Gsa Capital Partners LLP33,015$246.0K0.02%+33,015New
Janus Henderson Group PLC30,868$229.8K0.00%+30,868New
Abbot Financial Management, Inc.30,672$228.5K0.15%+19,660+178.5%Added