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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, Q3 2024

Institutional positions in Aspen Aerogels Inc as of Sep 30, 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
243
+22 vs. Q2 2024
Shares held
70.2M
+4.01M (+6.1%) vs. Q2 2024
Total value
$1.93B
+$344.1M (+21.8%) vs. Q2 2024
New holders
65
76 more added
Sold out
43
66 more reduced

1 institution that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2024: 243 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 heldQ3 2024: $1.93B
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, Q3 2024

Shares, value and share of portfolio for each institution holding Aspen Aerogels Inc; share changes are against Q2 2024.

Institutions holding ASPN in Q3 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Bryn Mawr Trust Co18,000$498.4K0.01%+18,000New
BNP Paribas Arbitrage, SA18,189$503.7K0.00%−86,832−82.7%Reduced
Arizona State Retirement System18,640$516.1K0.00%+1,470+8.6%Added
Voya Investment Management LLC18,898$523.3K0.00%−496−2.6%Reduced
AMH Equity Ltd20,000$553.8K0.73%+20,000New
New York State Common Retirement Fund20,131$557.4K0.00%−4,700−18.9%Reduced
Allianz Asset Management GmbH20,289$561.8K0.00%+20,289New
Perigon Wealth Management, LLC20,655$571.9K0.02%+11,889+135.6%Added
HB Wealth Management, LLC21,363$591.5K0.01%+21,363New
Yorktown Management & Research Co Inc21,500$595.3K0.61%+21,500New
Envestnet Asset Management Inc21,642$599.3K0.00%+21,642New
LPL Financial LLC22,063$610.9K0.00%+2,110+10.6%Added
D. E. Shaw & Co., Inc.22,465$622.1K0.00%−519,040−95.9%Reduced
Wolverine Trading, LLC21,858$623.8K0.02%+21,858New
Numerai GP LLC23,333$646.1K0.17%−7,730−24.9%Reduced
Franklin Resources Inc29,418$669.6K0.00%+1,483+5.3%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.24,355$674.4K0.00%−924−3.7%Reduced
ARS Investment Partners, LLC24,587$680.8K0.06%−897−3.5%Reduced
Gsa Capital Partners LLP24,860$688.0K0.05%−41,351−62.5%Reduced
Woodmont Investment Counsel LLC25,350$702.0K0.05%00.0%Unchanged
JPMorgan Chase & Co25,690$711.4K0.00%+790+3.2%Added
Verition Fund Management LLC25,953$718.6K0.00%+5,586+27.4%Added
Simplex Trading, LLC26,481$733.0K0.02%−7,493−22.1%Reduced
Churchill Management Corp28,941$801.4K0.01%−4,639−13.8%Reduced
Abbot Financial Management, Inc.29,109$806.0K0.41%+3,893+15.4%Added
Davy Global Fund Management Ltd29,131$806.6K0.08%00.0%Unchanged
Lombard Odier Asset Management (USA) Corp29,528$817.6K0.30%+29,528New
IMC-Chicago, LLC29,613$820.0K0.02%+16,112+119.3%Added
Virtu Financial LLC30,034$832.0K0.05%−8,974−23.0%Reduced
Janus Henderson Group PLC30,455$843.1K0.00%00.0%Unchanged
Price T Rowe Associates Inc30,763$852.0K0.00%+8,877+40.6%Added
Marshall Wace, LLP31,100$861.2K0.00%+5,200+20.1%Added
Corebridge Financial, Inc.31,153$862.6K0.00%−192−0.6%Reduced
Mirae Asset Global ETFs Holdings Ltd.31,999$886.1K0.00%+5,967+22.9%Added
Harvest Investment Services, LLC32,105$889.0K0.28%+4,702+17.2%Added
Royal Bank of Canada32,125$889.0K0.00%+19,157+147.7%Added
Promethium Advisors,llc33,065$915.6K0.65%+33,065New
Millennium Management LLC33,390$924.6K0.00%−358,173−91.5%Reduced
MetLife Investment Management33,664$932.2K0.01%00.0%Unchanged
Manufacturers Life Insurance Company, The35,121$972.5K0.00%+9,118+35.1%Added
Greenwood Capital Associates LLC35,189$974.4K0.13%−700−2.0%Reduced
Group One Trading, L.P.35,381$979.7K0.04%+35,381New
Dakota Wealth Management35,609$986.0K0.02%+35,609New
Harbour Capital Advisors, LLC43,525$988.0K0.23%+175+0.4%Added
Comerica Bank35,957$995.6K0.00%−68,489−65.6%Reduced
Fuller & Thaler Asset Management, Inc.38,170$1.06M0.00%−131,660−77.5%Reduced
Shelton Wealth Management, LLC42,640$1.18M0.67%+42,640New
D.A. Davidson & Co.42,692$1.18M0.01%−111−0.3%Reduced
DLD Asset Management, LP660,310$1.26M0.20%+660,310New
SEI Investments Co46,472$1.29M0.00%−3,213−6.5%Reduced
Penserra Capital Management LLC48,482$1.34M0.03%+48,482New
Invesco Ltd.49,147$1.36M0.00%−346,577−87.6%Reduced
Formula Growth Ltd50,000$1.38M0.48%+20,000+66.7%Added
Options Solutions, LLC50,809$1.41M0.68%+6,933+15.8%Added
Bridgewater Advisors Inc.77,357$1.41M0.15%+21,218+37.8%Added
Jane Street Group, LLC52,487$1.45M0.00%−303,496−85.3%Reduced
Legato Capital Management LLC52,957$1.47M0.18%−26,920−33.7%Reduced
Peregrine Asset Advisers, Inc.54,897$1.52M0.52%+54,897New
Redwood Investments, LLC55,907$1.55M0.46%+10,680+23.6%Added
Alliancebernstein L.P.57,610$1.60M0.00%00.0%Unchanged
Caption Management, LLC60,555$1.68M0.18%+60,555New
California State Teachers Retirement System60,781$1.68M0.00%+1,155+1.9%Added
Legal & General Group Plc63,190$1.75M0.00%+4,735+8.1%Added
Graham Capital Management, L.P.63,298$1.75M0.06%−3,619−5.4%Reduced
Citigroup Inc64,615$1.79M0.00%+48,524+301.6%Added
GWM Advisors LLC65,216$1.81M0.01%+12,142+22.9%Added
Aquatic Capital Management LLC70,200$1.94M0.05%+27,600+64.8%Added
Strategic Wealth Partners, Ltd.75,182$2.08M0.20%+36,278+93.3%Added
Capital Fund Management S.A.75,558$2.09M0.02%+75,558New
Two Sigma Investments, LP80,326$2.22M0.01%−325,423−80.2%Reduced
EAM Investors, LLC81,034$2.24M0.34%−23,960−22.8%Reduced
Wells Fargo & Company83,560$2.31M0.00%+41,049+96.6%Added
HRT Financial LP83,739$2.32M0.01%+83,739New
Alberta Investment Management Corp85,106$2.36M0.02%+85,106New
Healthcare of Ontario Pension Plan Trust Fund88,714$2.46M0.01%+8,123+10.1%Added
Rhumbline Advisers90,490$2.51M0.00%−2,736−2.9%Reduced
Bouvel Investment Partners, LLC90,992$2.52M0.95%−2,768−3.0%Reduced
Seven Eight Capital, LP91,423$2.53M0.23%−13,871−13.2%Reduced
Barclays PLC92,302$2.56M0.00%+71,024+333.8%Added
Jump Financial, LLC98,100$2.72M0.06%+12,025+14.0%Added
Oppenheimer & Co Inc102,535$2.84M0.04%+64,154+167.2%Added
Firsthand Capital Management, Inc.105,000$2.91M5.74%+100,000+2,000.0%Added
Balyasny Asset Management LLC106,133$2.94M0.01%+106,133New
Black Swift Group, LLC106,500$2.95M0.65%+27,100+34.1%Added
Ardsley Advisory Partners LP125,000$3.46M0.65%−270,000−68.4%Reduced
Sora Investors LLC125,000$3.46M0.60%+125,000New
Bank of America Corp125,009$3.46M0.00%+4,801+4.0%Added
Swiss National Bank126,400$3.50M0.00%+5,900+4.9%Added
Algert Global LLC127,764$3.54M0.10%+48,007+60.2%Added
Hillsdale Investment Management Inc.129,460$3.58M0.28%−23,640−15.4%Reduced
UBS Group AG131,251$3.63M0.00%−2,432−1.8%Reduced
Renaissance Technologies LLC133,900$3.71M0.01%−215,800−61.7%Reduced
Redwood Grove Capital, LLC147,705$4.09M1.11%+14,495+10.9%Added
Wellington Management Group LLP150,632$4.17M0.00%+150,632New
Alps Advisors Inc160,411$4.44M0.03%−11,389−6.6%Reduced
Bank of New York Mellon Corp173,790$4.81M0.00%−52,876−23.3%Reduced
Castleark Management LLC177,874$4.93M0.20%−50,290−22.0%Reduced
Scout Investments, Inc.220,332$5.09M0.13%+220,332New
Kennedy Capital Management, Inc.184,459$5.11M0.11%+70,241+61.5%Added
Silvercrest Asset Management Group LLC193,284$5.35M0.04%−57,571−22.9%Reduced