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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
Franklin Resources Inc29,435$349.7K0.00%+17+0.1%Added
Maven Securities LTD30,000$356.4K0.06%+15,000+100.0%Added
Abbot Financial Management, Inc.30,255$359.4K0.18%+1,146+3.9%Added
Janus Henderson Group PLC30,455$361.3K0.00%00.0%Unchanged
Royal Bank of Canada30,539$362.0K0.00%−1,586−4.9%Reduced
Corebridge Financial, Inc.30,691$364.6K0.00%−462−1.5%Reduced
Manufacturers Life Insurance Company, The30,997$368.2K0.00%−4,124−11.7%Reduced
Kovitz Investment Group Partners, LLC34,240$406.8K0.00%+24,740+260.4%Added
Mirae Asset Global ETFs Holdings Ltd.35,040$416.3K0.00%+3,041+9.5%Added
MetLife Investment Management35,782$425.1K0.00%+2,118+6.3%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.33,043$430.2K0.00%+8,688+35.7%Added
Perigon Wealth Management, LLC34,451$432.7K0.01%+13,796+66.8%Added
Connective Capital Management, LLC36,475$433.3K0.50%+36,475New
Sanders Morris Harris LLC35,000$436.4K0.07%+27,000+337.5%Added
Alpha DNA Investment Management LLC36,860$437.9K0.24%+36,860New
Greenwood Capital Associates LLC36,938$438.8K0.06%+1,749+5.0%Added
Fuller & Thaler Asset Management, Inc.38,200$453.8K0.00%+30+0.1%Added
Point72 (DIFC) Ltd39,237$466.1K0.04%+39,237New
Legato Capital Management LLC40,770$484.3K0.06%−12,187−23.0%Reduced
Price T Rowe Associates Inc42,451$505.0K0.00%+11,688+38.0%Added
Gsa Capital Partners LLP43,899$522.0K0.04%+19,039+76.6%Added
Qsemble Capital Management, LP44,031$523.1K0.07%+44,031New
Yorktown Management & Research Co Inc44,100$523.9K0.50%+22,600+105.1%Added
Nebula Research & Development LLC46,787$555.8K0.07%+30,352+184.7%Added
Promethium Advisors,llc46,880$556.9K0.38%+13,815+41.8%Added
Envestnet Asset Management Inc47,262$561.5K0.00%+25,620+118.4%Added
Verition Fund Management LLC47,330$562.3K0.00%+21,377+82.4%Added
Lombard Odier Asset Management (USA) Corp49,398$586.8K0.23%+19,870+67.3%Added
Invesco Ltd.50,871$604.3K0.00%+1,724+3.5%Added
Bayesian Capital Management, LP53,909$640.4K0.08%+53,909New
Alliancebernstein L.P.57,610$684.4K0.00%00.0%Unchanged
Campbell & CO Investment Adviser LLC60,649$720.5K0.06%+60,649New
Two Sigma Advisers, LP61,000$724.7K0.00%+61,000New
California State Teachers Retirement System61,045$725.2K0.00%+264+0.4%Added
GWM Advisors LLC61,088$725.7K0.00%−4,128−6.3%Reduced
Spears Abacus Advisors LLC62,930$747.6K0.02%+52,930+529.3%Added
Legal & General Group Plc63,538$754.8K0.00%+348+0.6%Added
Bouvel Investment Partners, LLC64,363$764.6K0.28%−26,629−29.3%Reduced
Quantbot Technologies LP64,672$768.3K0.03%+64,672New
Wellington Management Group LLP64,700$768.6K0.00%−85,932−57.0%Reduced
Dynamic Technology Lab Private Ltd65,471$778.0K0.13%+65,471New
Storebrand Asset Management AS68,846$817.9K0.00%+68,846New
Walleye Capital LLC80,805$960.0K0.01%+69,225+597.8%Added
HRT Financial LP81,702$970.0K0.01%−2,037−2.4%Reduced
Jane Street Group, LLC85,462$1.02M0.00%+32,975+62.8%Added
XTX Topco Ltd85,747$1.02M0.09%+85,747New
Bridgewater Advisors Inc.82,352$1.03M0.11%+4,995+6.5%Added
Citigroup Inc87,559$1.04M0.00%+22,944+35.5%Added
Fox Run Management, L.L.C.87,573$1.04M0.19%+87,573New
Group One Trading, L.P.87,832$1.04M0.04%+52,451+148.2%Added
Rhumbline Advisers93,044$1.11M0.00%+2,554+2.8%Added
Tudor Investment Corp Et Al101,479$1.21M0.01%+101,479New
DLD Asset Management, LP104,253$1.24M0.21%−556,057−84.2%Reduced
Firsthand Capital Management, Inc.105,000$1.25M2.60%00.0%Unchanged
JPMorgan Chase & Co105,591$1.25M0.00%+79,901+311.0%Added
Barclays PLC107,764$1.28M0.00%+15,462+16.8%Added
Aquatic Capital Management LLC117,212$1.39M0.04%+47,012+67.0%Added
Bank of America Corp119,873$1.42M0.00%−5,136−4.1%Reduced
Bryce Point Capital, LLC120,173$1.43M0.41%+120,173New
IMC-Chicago, LLC121,667$1.45M0.04%+92,054+310.9%Added
Alps Advisors Inc124,233$1.48M0.01%−36,178−22.6%Reduced
Swiss National Bank128,800$1.53M0.00%+2,400+1.9%Added
Palogic Value Management, L.P.130,000$1.54M0.62%+130,000New
Graham Capital Management, L.P.131,475$1.56M0.05%+68,177+107.7%Added
BNP Paribas Arbitrage, SA135,584$1.61M0.00%+117,395+645.4%Added
Schonfeld Strategic Advisors LLC138,700$1.65M0.01%+138,700New
LMR Partners LLP141,785$1.68M0.03%+141,785New
Redwood Grove Capital, LLC147,705$1.75M0.54%00.0%Unchanged
Capital Fund Management S.A.151,404$1.80M0.02%+75,846+100.4%Added
Allspring Global Investments Holdings, LLC152,517$1.82M0.00%−86,367−36.2%Reduced
Engineers Gate Manager LP155,087$1.84M0.03%+155,087New
Susquehanna International Group, LLP167,209$1.99M0.00%−343,922−67.3%Reduced
Oppenheimer & Co Inc181,528$2.16M0.03%+78,993+77.0%Added
Bank of New York Mellon Corp189,884$2.26M0.00%+16,094+9.3%Added
Wells Fargo & Company216,049$2.57M0.00%+132,489+158.6%Added
Kennedy Capital Management, Inc.224,475$2.67M0.06%+40,016+21.7%Added
Jump Financial, LLC239,895$2.85M0.06%+141,795+144.5%Added
Raymond James Financial Inc244,854$2.91M0.00%+244,854New
Essex Investment Management Co LLC248,243$2.95M0.53%+32,476+15.1%Added
Voloridge Investment Management, LLC260,027$3.09M0.01%+260,027New
Ardsley Advisory Partners LP261,100$3.10M0.60%+136,100+108.9%Added
Caption Management, LLC262,610$3.12M0.13%+202,055+333.7%Added
State of Wisconsin Investment Board284,408$3.38M0.01%+51,017+21.9%Added
Sargent Investment Group, LLC371,049$4.72M0.77%+47,680+14.7%Added
Trexquant Investment LP400,664$4.76M0.06%+400,664New
Baird Financial Group, Inc.401,131$4.77M0.01%+57,039+16.6%Added
Squarepoint Ops LLC402,446$4.78M0.01%+118,208+41.6%Added
Deutsche Bank AG415,391$4.93M0.00%+112,241+37.0%Added
Prescott Group Capital Management, L.L.C.431,500$5.13M0.70%+431,500New
UBS Group AG435,843$5.18M0.00%+304,592+232.1%Added
Algert Global LLC440,471$5.23M0.12%+312,707+244.8%Added
CastleKnight Management LP445,599$5.29M0.58%+445,599New
Sora Investors LLC487,245$5.79M0.64%+362,245+289.8%Added
Mesirow Institutional Investment Management, Inc.488,595$5.80M0.45%+11,525+2.4%Added
First Trust Advisors LP492,507$5.85M0.01%+216,452+78.4%Added
M&G Plc511,314$6.14M0.04%+511,314New
Ameriprise Financial Inc524,501$6.23M0.00%+79,122+17.8%Added
Frontier Capital Management Co LLC525,738$6.25M0.06%−182,976−25.8%Reduced
Charles Schwab Investment Management Inc549,709$6.53M0.00%+40,279+7.9%Added
Rice Hall James & Associates, LLC554,202$6.58M0.36%+19,089+3.6%Added