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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 2021

Institutional positions in Aspen Aerogels Inc as of Sep 30, 2021. 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
130
+16 vs. Q2 2021
Shares held
27.6M
−384.6K (−1.4%) vs. Q2 2021
Total value
$1.27B
+$432.3M (+51.7%) vs. Q2 2021
New holders
30
36 more added
Sold out
14
52 more reduced

1 institution that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2021: 130 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 2021: $1.27B
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 2021

Shares, value and share of portfolio for each institution holding Aspen Aerogels Inc; share changes are against Q2 2021.

Institutions holding ASPN in Q3 2021
InstitutionSharesValue% of portfolioChange in sharesAction
TFC Financial Management2$00.00%00.0%Unchanged
Ellevest, Inc.9$00.00%+9New
US Bancorp48$2.00K0.00%+48New
TCI Wealth Advisors, Inc.103$5.00K0.00%+103New
Kelly Financial Services LLC140$6.44K0.00%−4,049−96.7%Reduced
Tower Research Capital LLC (TRC)178$8.00K0.00%−728−80.4%Reduced
Geneos Wealth Management Inc.227$10.0K0.00%00.0%Unchanged
Reilly Financial Advisors, LLC400$18.0K0.00%00.0%Unchanged
Banque Cantonale Vaudoise672$31.0K0.00%+672New
First Command Bank900$41.0K0.01%+900New
First Command Financial Services, Inc.900$41.0K0.01%+900New
Macquarie Group Ltd1,072$49.0K0.00%−367−25.5%Reduced
Advisor Group Holdings, Inc.1,081$49.0K0.00%+966+840.0%Added
O'Shaughnessy Asset Management, LLC1,054$49.0K0.00%+1,054New
STRS Ohio1,100$50.0K0.00%+1,100New
RPg Family Wealth Advisory, LLC1,519$69.9K0.03%00.0%Unchanged
Ameritas Investment Partners, Inc.1,806$83.0K0.00%00.0%Unchanged
Legal & General Group Plc2,296$106.0K0.00%+36+1.6%Added
Dorsey Wright & Associates2,295$106.0K0.02%+180+8.5%Added
Quantbot Technologies LP2,400$110.0K0.01%+2,400New
Point72 Hong Kong Ltd2,538$117.0K0.01%+2,538New
BNP Paribas Arbitrage, SA3,734$171.8K0.00%+3,064+457.3%Added
HighMark Wealth Management LLC4,000$184.0K0.14%−1,500−27.3%Reduced
Principal Financial Group Inc4,668$215.0K0.00%+4,668New
Two Sigma Advisers, LP4,700$216.0K0.00%+4,700New
RBF Capital, LLC5,000$230.0K0.01%+5,000New
Wolverine Trading, LLC6,105$273.0K0.01%−12,226−66.7%Reduced
Paloma Partners Management Co6,175$284.0K0.01%+6,175New
Bank of America Corp6,491$298.0K0.00%−414−6.0%Reduced
Metropolitan Life Insurance Co6,529$300.4K0.00%+400+6.5%Added
MetLife Investment Management7,483$344.3K0.00%−1,857−19.9%Reduced
State of Wisconsin Investment Board7,600$350.0K0.00%+7,600New
SG Americas Securities, LLC7,830$360.0K0.00%−52,028−86.9%Reduced
Occudo Quantitative Strategies LP8,014$369.0K0.04%+8,014New
ARS Investment Partners, LLC8,393$386.0K0.04%−1,096−11.6%Reduced
Voya Investment Management LLC8,651$398.0K0.00%00.0%Unchanged
Simplex Trading, LLC11,568$400.0K0.01%+10.0%Added
Assenagon Asset Management S.A.8,915$410.0K0.00%−13,240−59.8%Reduced
Taylor, Cottrill, Erickson & Associates, Inc.9,000$414.0K0.06%00.0%Unchanged
Barclays PLC9,013$414.0K0.00%+6,185+218.7%Added
State Board of Administration of Florida Retirement System9,401$433.0K0.00%+180+2.0%Added
Engineers Gate Manager LP9,763$449.0K0.03%+9,763New
Royal Bank of Canada10,744$495.0K0.00%−1,799−14.3%Reduced
Manufacturers Life Insurance Company, The11,655$536.0K0.00%−1,918−14.1%Reduced
California State Teachers Retirement System11,954$550.0K0.00%−17,818−59.8%Reduced
Boothbay Fund Management, LLC12,000$552.0K0.02%+12,000New
American International Group, Inc.12,071$555.0K0.00%−33−0.3%Reduced
HRT Financial LP12,262$564.0K0.00%+12,262New
JPMorgan Chase & Co13,061$601.0K0.00%−22,891−63.7%Reduced
Panagora Asset Management Inc13,171$606.0K0.00%−4,782−26.6%Reduced
Bradley Foster & Sargent Inc15,342$706.0K0.02%−56−0.4%Reduced
New York State Common Retirement Fund15,588$717.0K0.00%−3,272−17.3%Reduced
Deutsche Bank AG16,390$755.0K0.00%+2,559+18.5%Added
Jump Financial, LLC17,215$792.0K0.06%+5,439+46.2%Added
Squarepoint Ops LLC17,805$819.0K0.01%−5,821−24.6%Reduced
Citigroup Inc18,103$833.0K0.00%−358−1.9%Reduced
Caption Management, LLC18,700$860.0K0.06%−33,780−64.4%Reduced
SEI Investments Co19,478$896.0K0.00%+19,478New
Rhumbline Advisers19,588$901.0K0.00%+2,067+11.8%Added
Alliancebernstein L.P.19,700$906.0K0.00%+19,700New
Harel Insurance Investments & Financial Services Ltd.19,881$915.0K0.02%−6,006−23.2%Reduced
Goldman Sachs Group Inc20,238$931.0K0.00%−35,459−63.7%Reduced
Manatuck Hill Partners, LLC20,300$934.0K0.33%−39,700−66.2%Reduced
Choate Investment Advisors20,362$937.0K0.06%+10,000+96.5%Added
Woodmont Investment Counsel LLC21,460$987.0K0.14%+7,775+56.8%Added
AQR Capital Management LLC23,409$1.08M0.00%+3,135+15.5%Added
Bridgewater Advisors Inc.25,000$1.15M0.32%−8,000−24.2%Reduced
Alpha Paradigm Partners, LLC25,257$1.16M0.47%+20,898+479.4%Added
Cubist Systematic Strategies, LLC27,200$1.25M0.02%+24,556+928.7%Added
Guggenheim Capital LLC32,750$1.51M0.01%−10,310−23.9%Reduced
Jane Street Group, LLC32,956$1.52M0.00%+22,253+207.9%Added
Parametric Portfolio Associates LLC33,068$1.52M0.00%+26,081+373.3%Added
Firsthand Capital Management, Inc.35,000$1.61M0.48%00.0%Unchanged
Sargent Investment Group, LLC38,556$1.77M0.43%+25,401+193.1%Added
Citadel Advisors LLC45,015$2.07M0.00%+13,937+44.8%Added
Millrace Asset Group, Inc.45,093$2.08M1.30%−18,748−29.4%Reduced
Morgan Stanley45,083$2.08M0.00%+4,137+10.1%Added
Advisory Research Inc47,639$2.19M0.14%+47,639New
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.51,158$2.35M0.01%−3,488−6.4%Reduced
Wells Fargo & Company55,526$2.55M0.00%+39,312+242.5%Added
Charles Schwab Investment Management Inc56,326$2.59M0.00%−1,471−2.5%Reduced
HAP Trading, LLC57,813$2.66M0.20%+57,813New
Nuveen Asset Management, LLC69,266$3.07M0.00%+329+0.5%Added
Susquehanna International Group, LLP73,673$3.39M0.00%−18,548−20.1%Reduced
Greenwood Capital Associates LLC74,642$3.43M0.53%−1,246−1.6%Reduced
Russell Investments Group, Ltd.75,519$3.47M0.01%+75,519New
Roubaix Capital, LLC77,838$3.58M2.35%−10,916−12.3%Reduced
UBS Group AG83,503$3.84M0.00%+393+0.5%Added
EAM Global Investors LLC84,747$3.90M0.92%+74,275+709.3%Added
Gilder Gagnon Howe & Co LLC85,119$3.92M0.02%+85,119New
ExodusPoint Capital Management, LP87,280$4.02M0.06%+87,280New
Bank of New York Mellon Corp90,509$4.16M0.00%+24,022+36.1%Added
Federated Hermes, Inc.90,582$4.17M0.01%+90,582New
Zevenbergen Capital Investments LLC96,662$4.45M0.08%+96,662New
EAM Investors, LLC99,366$4.57M0.77%+91,938+1,237.7%Added
Trellus Management Company, LLC105,563$4.86M4.35%00.0%Unchanged
Renaissance Technologies LLC108,751$5.00M0.01%−136,400−55.6%Reduced
Calamos Advisors LLC124,258$5.72M0.03%+124,258New
Millennium Management LLC156,510$7.20M0.01%−286,251−64.7%Reduced
Kennedy Capital Management, Inc.161,519$7.43M0.17%−35,408−18.0%Reduced