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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, Q2 2023

Institutional positions in Aspen Aerogels Inc as of Jun 30, 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
159
+4 vs. Q1 2023
Shares held
66.5M
−676.1K (−1.0%) vs. Q1 2023
Total value
$524.6M
+$26.0M (+5.2%) vs. Q1 2023
New holders
29
69 more added
Sold out
25
39 more reduced

1 institution that held it in Q1 2023 haven't filed for Q2 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2023: 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 holdersQ2 2023: 159 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 heldQ2 2023: $524.6M
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, Q2 2023

Shares, value and share of portfolio for each institution holding Aspen Aerogels Inc; share changes are against Q1 2023.

Institutions holding ASPN in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Kim, LLC15,780,426$124.5M10.65%00.0%Unchanged
BlackRock Inc.3,852,411$30.4M0.00%+364,579+10.5%Added
Vanguard Group Inc3,431,874$27.1M0.00%−3,989−0.1%Reduced
Oaktop Capital Management II, L.P.3,194,758$25.2M3.83%00.0%Unchanged
George Kaiser Family Foundation3,167,322$25.0M4.28%00.0%Unchanged
FMR LLC2,318,811$18.3M0.00%−15,726−0.7%Reduced
Needham Investment Management LLC2,268,300$17.9M2.95%+160,750+7.6%Added
Cowen Prime Advisors LLC1,911,500$15.1M5.19%+244,700+14.7%Added
Samjo Capital LLC1,740,000$13.7M11.51%+420,000+31.8%Added
AWM Investment Company, Inc.1,661,580$13.1M1.78%+40,724+2.5%Added
Telemark Asset Management, LLC1,555,000$12.3M1.66%−135,000−8.0%Reduced
Ardsley Advisory Partners LP1,511,678$11.9M2.69%+765,678+102.6%Added
State Street Corp1,193,127$9.41M0.00%+5,432+0.5%Added
Nuveen Asset Management, LLC1,154,431$9.11M0.00%+165,255+16.7%Added
Royce & Associates LP1,102,883$8.70M0.08%+130,500+13.4%Added
Geode Capital Management, LLC1,066,685$8.42M0.00%+89,261+9.1%Added
Essex Investment Management Co LLC1,011,471$7.98M1.11%+300,464+42.3%Added
AMH Equity Ltd1,000,000$7.89M9.02%+1,000,000New
Ameriprise Financial Inc976,534$7.70M0.00%+119,671+14.0%Added
UniSuper Management Pty Ltd954,862$7.53M0.09%+954,862New
Redwood Investments, LLC784,545$6.19M0.76%+181,809+30.2%Added
Penn Capital Management Co Inc765,021$6.04M0.59%−128,546−14.4%Reduced
Federated Hermes, Inc.750,000$5.92M0.01%00.0%Unchanged
Algert Global LLC630,594$4.98M0.22%+263,330+71.7%Added
Driehaus Capital Management LLC613,233$4.84M0.06%−10,612−1.7%Reduced
Caption Management, LLC602,948$4.76M0.84%+528,948+714.8%Added
ExodusPoint Capital Management, LP569,985$4.50M0.05%+154,574+37.2%Added
New York State Common Retirement Fund554,796$4.38M0.01%+55,127+11.0%Added
Northern Trust Corp534,436$4.22M0.00%+16,918+3.3%Added
Baird Financial Group, Inc.496,539$3.92M0.01%+39,525+8.6%Added
Citadel Advisors LLC429,658$3.39M0.00%−255,861−37.3%Reduced
Millennium Management LLC417,708$3.30M0.00%−853,032−67.1%Reduced
Goldman Sachs Group Inc362,334$2.86M0.00%+9,733+2.8%Added
Deutsche Bank AG338,491$2.67M0.00%−14,237−4.0%Reduced
Silvercrest Asset Management Group LLC323,802$2.55M0.02%+38,986+13.7%Added
UBS Asset Management Americas Inc339,741$2.53M0.00%00.0%Unchanged
Point72 Asset Management, L.P.314,032$2.48M0.01%−74,743−19.2%Reduced
CastleKnight Management LP310,200$2.45M0.50%−41,400−11.8%Reduced
Zevenbergen Capital Investments LLC275,562$2.17M0.05%+46,615+20.4%Added
Sargent Investment Group, LLC257,855$2.03M0.49%+71,090+38.1%Added
Palogic Value Management, L.P.250,000$1.97M0.93%+56,400+29.1%Added
Marshall Wace, LLP232,641$1.84M0.00%−685,964−74.7%Reduced
Renaissance Technologies LLC227,400$1.79M0.00%+193,900+578.8%Added
Voloridge Investment Management, LLC225,665$1.78M0.01%+178+0.1%Added
Kennedy Capital Management, Inc.221,710$1.75M0.04%+44,264+24.9%Added
Trellus Management Company, LLC220,000$1.74M2.67%+38,137+21.0%Added
Bank of New York Mellon Corp212,251$1.67M0.00%+27,112+14.6%Added
UBS Group AG178,454$1.41M0.00%+15,834+9.7%Added
Morgan Stanley168,508$1.33M0.00%−250,125−59.7%Reduced
Yaupon Capital Management LP167,078$1.32M0.18%−182,414−52.2%Reduced
Greenwood Capital Associates LLC157,492$1.24M0.17%+35,712+29.3%Added
Charles Schwab Investment Management Inc144,904$1.14M0.00%+8,070+5.9%Added
Swiss National Bank137,300$1.08M0.00%+8,800+6.8%Added
Redwood Grove Capital, LLC133,210$1.05M0.44%00.0%Unchanged
Susquehanna International Group, LLP129,891$1.02M0.00%−27,285−17.4%Reduced
Rice Hall James & Associates, LLC128,473$1.01M0.06%+128,473New
Bank of America Corp124,617$983.2K0.00%+15,373+14.1%Added
Potomac Capital Management, Inc.117,226$924.9K1.28%+12,226+11.6%Added
State of Wisconsin Investment Board116,830$921.8K0.00%+7,496+6.9%Added
Legato Capital Management LLC112,348$886.4K0.12%+60,899+118.4%Added
Hartree Partners, LP110,000$867.9K0.44%+110,000New
Allspring Global Investments Holdings, LLC100,291$791.3K0.00%+239+0.2%Added
Credit Suisse AG96,446$761.0K0.00%+23,738+32.6%Added
Bridgewater Advisors Inc.94,000$741.7K0.15%00.0%Unchanged
Bouvel Investment Partners, LLC89,400$705.4K0.39%+89,400New
Russell Investments Group, Ltd.82,581$651.6K0.00%+23,599+40.0%Added
Sora Investors LLC80,000$631.2K0.28%+80,000New
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.78,646$620.5K0.00%+17,707+29.1%Added
Rhumbline Advisers74,256$585.9K0.00%+25,479+52.2%Added
California State Teachers Retirement System72,472$571.8K0.00%+1,465+2.1%Added
Squarepoint Ops LLC66,725$526.5K0.00%−21,823−24.6%Reduced
HRT Financial LP61,456$484.0K0.00%+61,456New
Wolverine Trading, LLC61,597$461.4K0.01%+61,597New
Two Sigma Advisers, LP57,900$456.8K0.00%−377,800−86.7%Reduced
BNP Paribas Arbitrage, SA55,313$436.4K0.00%−14,410−20.7%Reduced
ARS Investment Partners, LLC55,216$435.7K0.05%+6,112+12.4%Added
Legal & General Group Plc51,787$408.6K0.00%+28,559+123.0%Added
Woodmont Investment Counsel LLC50,085$395.2K0.04%−9,200−15.5%Reduced
Jane Street Group, LLC49,135$387.7K0.00%+33,957+223.7%Added
Strategic Wealth Partners, Ltd.49,109$387.5K0.05%+1,379+2.9%Added
Advisor Group Holdings, Inc.49,055$387.0K0.00%−229−0.5%Reduced
Levin Capital Strategies, L.P.47,613$375.7K0.04%+17,000+55.5%Added
TownSquare Capital, LLC46,381$365.9K0.01%+46,381New
Nebula Research & Development LLC46,046$363.3K0.28%+12,412+36.9%Added
JPMorgan Chase & Co45,427$358.4K0.00%−21,379−32.0%Reduced
Alliancebernstein L.P.45,410$358.3K0.00%+34,510+316.6%Added
Diametric Capital, LP41,841$330.1K0.15%−11,814−22.0%Reduced
Firsthand Capital Management, Inc.35,000$276.1K0.33%00.0%Unchanged
Los Angeles Capital Management LLC32,900$259.6K0.00%−26,471−44.6%Reduced
Janus Henderson Group PLC30,856$243.3K0.00%−120.0%Reduced
Abbot Financial Management, Inc.28,104$221.7K0.14%−2,568−8.4%Reduced
MetLife Investment Management26,511$209.2K0.00%00.0%Unchanged
SEI Investments Co24,918$196.6K0.00%+1,020+4.3%Added
Highland Capital Management Fund Advisors, L.P.24,650$194.5K0.03%−3,400−12.1%Reduced
American International Group, Inc.24,599$194.1K0.00%+340+1.4%Added
Franklin Resources Inc24,538$193.6K0.00%+24,538New
Citigroup Inc22,904$180.7K0.00%+16,079+235.6%Added
Barclays PLC21,528$169.9K0.00%−3,898−15.3%Reduced
Manufacturers Life Insurance Company, The20,865$164.6K0.00%+8,540+69.3%Added
Voya Investment Management LLC20,437$161.2K0.00%+2,875+16.4%Added