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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, Q4 2024

Institutional positions in Aspen Aerogels Inc as of Dec 31, 2024. 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
231
−6 vs. Q3 2024
Shares held
73.0M
+3.12M (+4.5%) vs. Q3 2024
Total value
$868.2M
−$1.05B (−54.8%) vs. Q3 2024
New holders
64
99 more added
Sold out
70
42 more reduced

6 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2024: 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 holdersQ4 2024: 231 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 heldQ4 2024: $868.2M
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, Q4 2024

Shares, value and share of portfolio for each institution holding Aspen Aerogels Inc; share changes are against Q3 2024.

Institutions holding ASPN in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Alliancebernstein L.P.57,610$684.4K0.00%00.0%Unchanged
Bayesian Capital Management, LP53,909$640.4K0.08%+53,909New
Invesco Ltd.50,871$604.3K0.00%+1,724+3.5%Added
Lombard Odier Asset Management (USA) Corp49,398$586.8K0.23%+19,870+67.3%Added
Verition Fund Management LLC47,330$562.3K0.00%+21,377+82.4%Added
Envestnet Asset Management Inc47,262$561.5K0.00%+25,620+118.4%Added
Promethium Advisors,llc46,880$556.9K0.38%+13,815+41.8%Added
Nebula Research & Development LLC46,787$555.8K0.07%+30,352+184.7%Added
Yorktown Management & Research Co Inc44,100$523.9K0.50%+22,600+105.1%Added
Qsemble Capital Management, LP44,031$523.1K0.07%+44,031New
Gsa Capital Partners LLP43,899$522.0K0.04%+19,039+76.6%Added
Price T Rowe Associates Inc42,451$505.0K0.00%+11,688+38.0%Added
Legato Capital Management LLC40,770$484.3K0.06%−12,187−23.0%Reduced
Point72 (DIFC) Ltd39,237$466.1K0.04%+39,237New
Fuller & Thaler Asset Management, Inc.38,200$453.8K0.00%+30+0.1%Added
Greenwood Capital Associates LLC36,938$438.8K0.06%+1,749+5.0%Added
Alpha DNA Investment Management LLC36,860$437.9K0.24%+36,860New
Sanders Morris Harris LLC35,000$436.4K0.07%+27,000+337.5%Added
Connective Capital Management, LLC36,475$433.3K0.50%+36,475New
Perigon Wealth Management, LLC34,451$432.7K0.01%+13,796+66.8%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.33,043$430.2K0.00%+8,688+35.7%Added
MetLife Investment Management35,782$425.1K0.00%+2,118+6.3%Added
Mirae Asset Global ETFs Holdings Ltd.35,040$416.3K0.00%+3,041+9.5%Added
Kovitz Investment Group Partners, LLC34,240$406.8K0.00%+24,740+260.4%Added
Manufacturers Life Insurance Company, The30,997$368.2K0.00%−4,124−11.7%Reduced
Corebridge Financial, Inc.30,691$364.6K0.00%−462−1.5%Reduced
Royal Bank of Canada30,539$362.0K0.00%−1,586−4.9%Reduced
Janus Henderson Group PLC30,455$361.3K0.00%00.0%Unchanged
Abbot Financial Management, Inc.30,255$359.4K0.18%+1,146+3.9%Added
Maven Securities LTD30,000$356.4K0.06%+15,000+100.0%Added
Franklin Resources Inc29,435$349.7K0.00%+17+0.1%Added
Corton Capital Inc.29,277$347.8K0.20%+29,277New
EntryPoint Capital, LLC28,811$342.3K0.14%+20,670+253.9%Added
Intech Investment Management LLC28,267$335.8K0.00%+10,311+57.4%Added
SEI Investments Co28,193$334.9K0.00%−18,279−39.3%Reduced
Woodmont Investment Counsel LLC25,350$301.2K0.02%00.0%Unchanged
Russell Investments Group, Ltd.25,237$299.8K0.00%+21,894+654.9%Added
Marshall Wace, LLP24,530$291.4K0.00%−6,570−21.1%Reduced
Tower Research Capital LLC (TRC)24,365$289.5K0.01%+17,012+231.4%Added
ARS Investment Partners, LLC24,341$289.2K0.03%−246−1.0%Reduced
Wolverine Trading, LLC23,871$286.9K0.01%+2,013+9.2%Added
Keebeck Alpha, LP24,007$285.2K0.30%+24,007New
DnB Asset Management AS23,126$274.7K0.00%+23,126New
Toronto Dominion Bank22,388$266.0K0.00%+22,388New
Commonwealth Equity Services, LLC22,192$264.0K0.00%+6,982+45.9%Added
Talbot Financial, LLC21,130$251.0K0.03%+21,130New
IFP Advisors, Inc20,719$246.2K0.01%+20,424+6,923.4%Added
Bridgefront Capital, LLC20,427$242.7K0.08%+20,427New
Allianz Asset Management GmbH20,289$241.0K0.00%00.0%Unchanged
New York State Common Retirement Fund20,131$239.2K0.00%00.0%Unchanged
Prelude Capital Management, LLC19,205$228.2K0.02%+19,205New
Arizona State Retirement System19,015$225.9K0.00%+375+2.0%Added
Aigen Investment Management, LP18,445$219.1K0.04%+18,445New
Zurcher Kantonalbank (Zurich Cantonalbank)17,784$211.3K0.00%+3,474+24.3%Added
Capula Management Ltd17,523$208.2K0.00%+17,523New
Voya Investment Management LLC17,454$207.4K0.00%−1,444−7.6%Reduced
ProShare Advisors LLC17,386$206.5K0.00%+6,376+57.9%Added
Sherbrooke Park Advisers LLC17,018$202.2K0.06%+17,018New
Cim, LLC16,263$193.2K0.03%+1,298+8.7%Added
Ballentine Partners, LLC15,914$189.1K0.00%+2,565+19.2%Added
Cambridge Investment Research Advisors, Inc.15,792$188.0K0.00%−484−3.0%Reduced
Quadrature Capital Ltd15,286$181.4K0.00%+15,286New
LPL Financial LLC15,238$181.0K0.00%−6,825−30.9%Reduced
Journey Strategic Wealth LLC15,000$178.2K0.01%+15,000New
State Board of Administration of Florida Retirement System14,618$173.7K0.00%00.0%Unchanged
Connors Investor Services Inc14,167$168.3K0.02%+14,167New
KLP Kapitalforvaltning AS13,800$163.9K0.00%+13,800New
HB Wealth Management, LLC12,974$154.1K0.00%−8,389−39.3%Reduced
Bank of Montreal12,953$153.9K0.00%−146−1.1%Reduced
Police & Firemen's Retirement System of New Jersey12,912$153.4K0.00%+12,912New
Quest Partners LLC11,395$135.4K0.02%+3,998+54.0%Added
Icapital Wealth LLC11,202$133.1K0.08%+3,177+39.6%Added
Wealth Enhancement Advisory Services, LLC10,843$128.8K0.00%+10,843New
Advisor Group Holdings, Inc.10,121$120.2K0.00%+818+8.8%Added
Choate Investment Advisors10,000$118.8K0.00%00.0%Unchanged
Sandia Investment Management LP7,500$89.1K0.17%+7,500New
Morse Asset Management, Inc7,169$85.2K0.02%−2,374−24.9%Reduced
Public Employees Retirement Association of Colorado6,088$72.0K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.5,708$67.8K0.00%00.0%Unchanged
Bryn Mawr Trust Co4,500$53.5K0.00%−13,500−75.0%Reduced
First PREMIER Bank4,000$48.0K0.01%00.0%Unchanged
Simplex Trading, LLC3,666$43.0K0.00%−22,815−86.2%Reduced
Caitong International Asset Management Co., Ltd3,190$37.9K0.04%+3,190New
Leonteq Securities AG2,948$35.0K0.00%+2,948New
Stance Capital LLC2,889$34.3K0.02%+2,889New
Northwestern Mutual Wealth Management Co2,779$33.0K0.00%+2,719+4,531.7%Added
Bokf, NA2,000$25.1K0.00%00.0%Unchanged
R Squared Ltd2,050$24.4K0.02%+2,050New
SBI Securities Co., Ltd.2,004$23.8K0.00%+2,004New
Larson Financial Group LLC2,000$23.8K0.00%+1,986+14,185.7%Added
US Bancorp1,894$22.5K0.00%+604+46.8%Added
Coppell Advisory Solutions LLC1,869$22.5K0.00%+1,869New
Amalgamated Bank1,744$21.0K0.00%00.0%Unchanged
Harel Insurance Investments & Financial Services Ltd.1,597$19.0K0.00%+193+13.7%Added
Kestra Investment Management, LLC1,504$17.9K0.00%+1,504New
Sterling Capital Management LLC1,469$17.5K0.00%+1,299+764.1%Added
Exchange Traded Concepts, LLC1,327$15.8K0.00%+672+102.6%Added
Point72 Asia (Singapore) Pte. Ltd.998$11.9K0.00%+998New
Aster Capital Management (DIFC) Ltd941$11.2K0.00%+941New
Federation des caisses Desjardins du Quebec815$9.68K0.00%+800+5,333.3%Added