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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 2025

Institutional positions in Aspen Aerogels Inc as of Jun 30, 2025. 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
182
−39 vs. Q1 2025
Shares held
71.4M
+122.6K (+0.2%) vs. Q1 2025
Total value
$423.4M
−$31.9M (−7.0%) vs. Q1 2025
New holders
26
75 more added
Sold out
65
54 more reduced

Compare with Q1 2025: 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 2025: 182 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 2025: $423.4M
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 2025

Shares, value and share of portfolio for each institution holding Aspen Aerogels Inc; share changes are against Q1 2025.

Institutions holding ASPN in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Covestor Ltd14$00.00%+8+133.3%Added
Farther Finance Advisors, LLC1$60.00%−35−97.2%Reduced
Clearstead Advisors, LLC12$720.00%+12New
Asset Planning,Inc25$1480.00%00.0%Unchanged
WealthTrak Capital Management LLC25$1480.00%+25New
Colonial Trust Advisors50$2960.00%00.0%Unchanged
Parkside Financial Bank & Trust80$4740.00%+80New
Comerica Bank93$5480.00%−235−71.6%Reduced
Cullen/Frost Bankers, Inc.103$6100.00%00.0%Unchanged
The PNC Financial Services Group, Inc.125$7400.00%+85+212.5%Added
Rothschild Investment LLC185$1.09K0.00%+60+48.0%Added
Performa Ltd (US), LLC250$1.48K0.00%−350−58.3%Reduced
HighMark Wealth Management LLC250$1.48K0.00%00.0%Unchanged
Minot DeBlois Advisors LLC300$1.78K0.00%00.0%Unchanged
Principal Securities, Inc.604$3.58K0.00%+604New
Essential Partners LLC640$3.79K0.00%+640New
EverSource Wealth Advisors, LLC641$3.79K0.00%+518+421.1%Added
Huntington National Bank735$4.35K0.00%+735New
Allworth Financial LP814$4.82K0.00%+197+31.9%Added
BNP PARIBAS ASSET MANAGEMENT Holding S.A.777$5.00K0.00%+777New
Caitong International Asset Management Co., Ltd872$5.16K0.00%+788+938.1%Added
Signaturefd, LLC968$5.73K0.00%+647+201.6%Added
Simplex Trading, LLC1,053$6.00K0.00%−6,027−85.1%Reduced
GAMMA Investing LLC1,097$6.49K0.00%+578+111.4%Added
Versant Capital Management, Inc1,322$7.83K0.00%+1,322New
Morse Asset Management, Inc1,575$9.32K0.00%+5+0.3%Added
MAI Capital Management1,651$9.77K0.00%+1,000+153.6%Added
SRS Capital Advisors, Inc.1,723$10.2K0.00%+1,723New
Sterling Capital Management LLC1,790$10.6K0.00%+946+112.1%Added
Jones Financial Companies LLLP1,895$11.1K0.00%+150+8.6%Added
Bokf, NA2,000$11.8K0.00%00.0%Unchanged
Amalgamated Bank2,130$13.0K0.00%00.0%Unchanged
Larson Financial Group LLC2,259$13.4K0.00%−37−1.6%Reduced
Strategic Wealth Partners, Ltd.2,351$13.9K0.00%+2,351New
US Bancorp2,891$17.1K0.00%+1,473+103.9%Added
First PREMIER Bank4,000$24.0K0.01%00.0%Unchanged
Bryn Mawr Trust Co4,500$26.6K0.00%00.0%Unchanged
Nisa Investment Advisors, LLC4,791$28.4K0.00%+4,390+1,094.8%Added
Ameritas Investment Partners, Inc.5,708$33.8K0.00%00.0%Unchanged
Clear Street Markets LLC5,716$33.8K0.01%+5,716New
Public Employees Retirement Association of Colorado6,088$36.0K0.00%00.0%Unchanged
SBI Securities Co., Ltd.6,343$37.6K0.00%+2,551+67.3%Added
Banque Cantonale Vaudoise6,713$40.0K0.00%−261−3.7%Reduced
Tower Research Capital LLC (TRC)7,235$42.8K0.00%+4,693+184.6%Added
CWM, LLC8,318$49.0K0.00%−7−0.1%Reduced
Spears Abacus Advisors LLC10,000$59.2K0.00%−52,505−84.0%Reduced
Choate Investment Advisors10,000$59.2K0.00%00.0%Unchanged
Gotham Asset Management, LLC10,396$61.5K0.00%+10,396New
Teacher Retirement System of Texas10,571$62.6K0.00%+414+4.1%Added
Integrated Wealth Concepts LLC10,614$62.8K0.00%−2,537−19.3%Reduced
Advisor Group Holdings, Inc.10,615$62.8K0.00%+2,390+29.1%Added
Probity Advisors, Inc.10,665$63.1K0.01%+10,665New
Zurcher Kantonalbank (Zurich Cantonalbank)10,703$63.4K0.00%−14,530−57.6%Reduced
Guggenheim Capital LLC10,750$63.6K0.00%+371+3.6%Added
Graham Capital Management, L.P.12,623$74.7K0.00%−154,336−92.4%Reduced
Police & Firemen's Retirement System of New Jersey12,912$76.4K0.00%00.0%Unchanged
ProShare Advisors LLC13,597$80.5K0.00%+236+1.8%Added
KLP Kapitalforvaltning AS13,800$81.7K0.00%00.0%Unchanged
Penbrook Management LLC14,180$83.9K0.06%−3,975−21.9%Reduced
State Board of Administration of Florida Retirement System14,618$86.5K0.00%00.0%Unchanged
American Century Companies Inc15,044$89.1K0.00%+15,044New
Creative Planning15,324$90.7K0.00%+15,324New
MML Investors Services, LLC15,794$94.0K0.00%+15,794New
Avantax Advisory Services, Inc.17,253$102.1K0.00%−3,272−15.9%Reduced
Concurrent Investment Advisors, LLC17,604$104.2K0.00%+511+3.0%Added
Quantinno Capital Management LP17,938$106.2K0.00%+17,938New
Quest Partners LLC18,154$107.5K0.01%−24,780−57.7%Reduced
Voya Investment Management LLC18,399$108.9K0.00%+1,793+10.8%Added
Allspring Global Investments Holdings, LLC17,807$109.3K0.00%−281,504−94.1%Reduced
Oppenheimer & Co Inc19,779$117.1K0.00%−183,381−90.3%Reduced
Arizona State Retirement System20,367$120.6K0.00%+363+1.8%Added
Corton Capital Inc.20,612$122.0K0.14%+20,612New
D. E. Shaw & Co., Inc.20,722$122.7K0.00%−4,067−16.4%Reduced
IFP Advisors, Inc20,749$122.8K0.00%−5,967−22.3%Reduced
Manufacturers Life Insurance Company, The24,671$146.1K0.00%+2,656+12.1%Added
Woodmont Investment Counsel LLC25,503$151.0K0.01%−4,500−15.0%Reduced
Raymond James Financial Inc26,559$157.2K0.00%+1,687+6.8%Added
FORA Capital, LLC29,452$174.4K0.02%+17,090+138.2%Added
Janus Henderson Group PLC30,455$180.1K0.00%00.0%Unchanged
Group One Trading, L.P.33,353$197.4K0.01%+5,774+20.9%Added
Connors Investor Services Inc35,167$208.2K0.02%+15,000+74.4%Added
Nebula Research & Development LLC35,414$209.7K0.02%−22,402−38.7%Reduced
Mirae Asset Global ETFs Holdings Ltd.35,608$210.8K0.00%−992−2.7%Reduced
Perigon Wealth Management, LLC37,866$224.2K0.01%+4,270+12.7%Added
Intech Investment Management LLC38,723$229.2K0.00%+48+0.1%Added
Two Sigma Advisers, LP39,900$236.2K0.00%−25,300−38.8%Reduced
Sanders Morris Harris LLC40,000$236.8K0.06%00.0%Unchanged
Franklin Resources Inc40,413$239.2K0.00%+50.0%Added
Caption Management, LLC43,700$258.7K0.02%+43,700New
LPL Financial LLC43,784$259.2K0.00%+12,341+39.2%Added
MetLife Investment Management44,577$263.9K0.00%−719,846−94.2%Reduced
Wells Fargo & Company51,357$304.0K0.00%−69,111−57.4%Reduced
Skylands Capital, LLC54,800$324.4K0.05%00.0%Unchanged
Thrivent Financial for Lutherans55,719$330.0K0.00%00.0%Unchanged
ARS Investment Partners, LLC56,507$334.5K0.02%+32,166+132.1%Added
California State Teachers Retirement System56,519$334.6K0.00%−4,526−7.4%Reduced
Balyasny Asset Management LLC59,099$349.9K0.00%−97,649−62.3%Reduced
Envestnet Asset Management Inc66,910$396.1K0.00%+11,399+20.5%Added
Legal & General Group Plc67,130$397.4K0.00%+2,324+3.6%Added
Squarepoint Ops LLC68,167$403.5K0.00%−574,636−89.4%Reduced