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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 2022

Institutional positions in Aspen Aerogels Inc as of Mar 31, 2022. 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
145
−11 vs. Q4 2021
Shares held
31.7M
+3.38M (+11.9%) vs. Q4 2021
Total value
$1.09B
−$317.5M (−22.5%) vs. Q4 2021
New holders
28
59 more added
Sold out
39
42 more reduced

3 institutions that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2021: 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 2022: 145 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 2022: $1.09B
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 2022

Shares, value and share of portfolio for each institution holding Aspen Aerogels Inc; share changes are against Q4 2021.

Institutions holding ASPN in Q1 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Calamos Advisors LLC106,504$3.67M0.01%−66,713−38.5%Reduced
Gilder Gagnon Howe & Co LLC108,930$3.76M0.03%+23,845+28.0%Added
RK Capital Management, LLC123,600$4.26M0.85%−42,300−25.5%Reduced
Peregrine Capital Management LLC123,847$4.27M0.10%+123,847New
Two Sigma Advisers, LP124,500$4.29M0.01%+119,900+2,606.5%Added
Afton Capital Management LLC127,343$4.39M9.34%−10,357−7.5%Reduced
Granite Point Capital Management, L.P.128,822$4.44M2.25%−68,391−34.7%Reduced
Morgan Stanley139,532$4.81M0.00%+83,807+150.4%Added
Jetstream Capital LLC156,000$5.38M7.90%+96,000+160.0%Added
Silvercrest Asset Management Group LLC158,060$5.45M0.04%+1,177+0.8%Added
Two Sigma Investments, LP161,539$5.57M0.02%+161,539New
Kennedy Capital Management, Inc.165,740$5.71M0.14%+17,000+11.4%Added
Goldman Sachs Group Inc174,617$6.02M0.00%+132,232+312.0%Added
Zevenbergen Capital Investments LLC179,022$6.17M0.17%+22,045+14.0%Added
Citadel Advisors LLC191,838$6.61M0.01%+69,155+56.4%Added
Northern Trust Corp206,442$7.12M0.00%−11,558−5.3%Reduced
Millennium Management LLC212,293$7.32M0.01%+173,755+450.9%Added
Redwood Investments, LLC269,769$9.30M0.88%+269,769New
ExodusPoint Capital Management, LP283,893$9.79M0.14%+140,743+98.3%Added
AMH Equity Ltd321,414$11.1M13.29%+178,714+125.2%Added
Deutsche Bank AG325,329$11.2M0.01%+311,200+2,202.6%Added
Samjo Capital LLC345,000$11.9M10.17%+15,000+4.5%Added
UBS Asset Management Americas Inc348,879$12.0M0.01%−23,512−6.3%Reduced
Cowen Prime Advisors LLC367,280$12.7M5.33%+53,380+17.0%Added
G2 Investment Partners Management LLC391,153$13.5M3.21%−24,624−5.9%Reduced
Baird Financial Group, Inc.405,119$14.0M0.03%+33,356+9.0%Added
Geode Capital Management, LLC405,507$14.0M0.00%+17,863+4.6%Added
Next Century Growth Investors LLC411,043$14.2M1.42%−5,566−1.3%Reduced
Dimensional Fund Advisors LP441,247$15.2M0.00%+21,112+5.0%Added
Voya Investment Management LLC446,177$15.4M0.03%+437,611+5,108.7%Added
Royce & Associates LP491,832$17.0M0.14%+69,550+16.5%Added
State Street Corp507,825$17.5M0.00%−70,745−12.2%Reduced
Essex Investment Management Co LLC510,488$17.6M2.19%+133,618+35.5%Added
FMR LLC536,167$18.5M0.00%−196,589−26.8%Reduced
Needham Investment Management LLC661,500$22.8M3.30%−32,500−4.7%Reduced
Invesco Ltd.728,826$25.1M0.01%−68,606−8.6%Reduced
Encompass Capital Advisors LLC910,780$31.4M2.30%+510,592+127.6%Added
Driehaus Capital Management LLC1,350,570$46.6M0.57%−24,521−1.8%Reduced
BlackRock Inc.1,531,582$52.8M0.00%−21,008−1.4%Reduced
Vanguard Group Inc1,533,291$52.9M0.00%−22,999−1.5%Reduced
Koch Industries Inc1,791,986$61.8M4.33%+1,791,986New
Telemark Asset Management, LLC1,820,000$62.8M5.54%−20,000−1.1%Reduced
Oaktop Capital Management II, L.P.2,939,758$101.4M14.47%00.0%Unchanged
George Kaiser Family Foundation3,167,322$109.2M17.83%00.0%Unchanged
Spring Creek Capital LLC3,462,124$119.4M4.72%00.0%Unchanged
Price T Rowe Associates Inc0$00.00%−375,968−100.0%Sold out
Collaborative Holdings Management LP0$00.00%−320,700−100.0%Sold out
HAP Trading, LLC0$00.00%−90,145−100.0%Sold out
Balyasny Asset Management LLC0$00.00%−83,568−100.0%Sold out
EAM Investors, LLC0$00.00%−73,008−100.0%Sold out
EAM Global Investors LLC0$00.00%−55,297−100.0%Sold out
Alyeska Investment Group, L.P.0$00.00%−51,062−100.0%Sold out
Federated Hermes, Inc.0$00.00%−46,727−100.0%Sold out
Parametric Portfolio Associates LLC0$00.00%−32,526−100.0%Sold out
Polarity Investment Partners LP0$00.00%−28,614−100.0%Sold out
American Century Companies Inc0$00.00%−28,528−100.0%Sold out
Voloridge Investment Management, LLC0$00.00%−28,425−100.0%Sold out
HRT Financial LP0$00.00%−20,867−100.0%Sold out
Manatuck Hill Partners, LLC0$00.00%−20,300−100.0%Sold out
Luminus Management LLC0$00.00%−17,300−100.0%Sold out
Walleye Capital LLC0$00.00%−13,949−100.0%Sold out
Prudential Financial Inc0$00.00%−12,800−100.0%Sold out
Bradley Foster & Sargent Inc0$00.00%−12,362−100.0%Sold out
Engineers Gate Manager LP0$00.00%−11,415−100.0%Sold out
Wolverine Trading, LLC0$00.00%−11,409−100.0%Sold out
Thompson Davis & Co., Inc.0$00.00%−10,200−100.0%Sold out
Caption Management, LLC0$00.00%−10,100−100.0%Sold out
Brookfield Asset Management Inc.0$00.00%−10,020−100.0%Sold out
Brown Advisory Inc0$00.00%−10,031−100.0%Sold out
Occudo Quantitative Strategies LP0$00.00%−9,404−100.0%Sold out
National Bank of Canada0$00.00%−8,982−100.0%Sold out
Andrew Hill Investment Advisors, Inc.0$00.00%−5,745−100.0%Sold out
Janus Henderson Group PLC0$00.00%−5,296−100.0%Sold out
Teacher Retirement System of Texas0$00.00%−5,177−100.0%Sold out
RBF Capital, LLC0$00.00%−5,000−100.0%Sold out
ProShare Advisors LLC0$00.00%−4,819−100.0%Sold out
Taylor, Cottrill, Erickson & Associates, Inc.0$00.00%−4,500−100.0%Sold out
Marshall Wace, LLP0$00.00%−2,846−100.0%Sold out
KRS Capital Management, LLC0$00.00%−2,700−100.0%Sold out
Dorsey Wright & Associates0$00.00%−2,655−100.0%Sold out
SG Americas Securities, LLC0$00.00%−2,429−100.0%Sold out
Banque Cantonale Vaudoise0$00.00%−672−100.0%Sold out
TCI Wealth Advisors, Inc.0$00.00%−138−100.0%Sold out
Toth Financial Advisory Corp0$00.00%−18−100.0%Sold out
Tygh Capital Management, Inc.––––Not filed
Reilly Financial Advisors, LLC––––Not filed
Harbour Investments, Inc.––––Not filed