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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
Metropolitan Life Insurance Co6,529$300.4K0.00%+400+6.5%Added
Bank of America Corp6,491$298.0K0.00%−414−6.0%Reduced
Paloma Partners Management Co6,175$284.0K0.01%+6,175New
Wolverine Trading, LLC6,105$273.0K0.01%−12,226−66.7%Reduced
RBF Capital, LLC5,000$230.0K0.01%+5,000New
Two Sigma Advisers, LP4,700$216.0K0.00%+4,700New
Principal Financial Group Inc4,668$215.0K0.00%+4,668New
HighMark Wealth Management LLC4,000$184.0K0.14%−1,500−27.3%Reduced
BNP Paribas Arbitrage, SA3,734$171.8K0.00%+3,064+457.3%Added
Point72 Hong Kong Ltd2,538$117.0K0.01%+2,538New
Quantbot Technologies LP2,400$110.0K0.01%+2,400New
Legal & General Group Plc2,296$106.0K0.00%+36+1.6%Added
Dorsey Wright & Associates2,295$106.0K0.02%+180+8.5%Added
Ameritas Investment Partners, Inc.1,806$83.0K0.00%00.0%Unchanged
RPg Family Wealth Advisory, LLC1,519$69.9K0.03%00.0%Unchanged
STRS Ohio1,100$50.0K0.00%+1,100New
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
First Command Bank900$41.0K0.01%+900New
First Command Financial Services, Inc.900$41.0K0.01%+900New
Banque Cantonale Vaudoise672$31.0K0.00%+672New
Reilly Financial Advisors, LLC400$18.0K0.00%00.0%Unchanged
Geneos Wealth Management Inc.227$10.0K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)178$8.00K0.00%−728−80.4%Reduced
Kelly Financial Services LLC140$6.44K0.00%−4,049−96.7%Reduced
TCI Wealth Advisors, Inc.103$5.00K0.00%+103New
US Bancorp48$2.00K0.00%+48New
TFC Financial Management2$00.00%00.0%Unchanged
Ellevest, Inc.9$00.00%+9New
AIGH Capital Management LLC0$00.00%−655,819−100.0%Sold out
Worth Venture Partners, LLC0$00.00%−146,687−100.0%Sold out
Shay Capital LLC0$00.00%−74,294−100.0%Sold out
Jefferies Group LLC0$00.00%−70,000−100.0%Sold out
Ardsley Advisory Partners LP0$00.00%−50,500−100.0%Sold out
Apis Capital Advisors, LLC0$00.00%−45,000−100.0%Sold out
Nomura Holdings Inc0$00.00%−40,000−100.0%Sold out
Bank of Montreal0$00.00%−45,001−100.0%Sold out
PEAK6 Investments LLC0$00.00%−18,583−100.0%Sold out
Appian Way Asset Management LP0$00.00%−17,900−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−11,239−100.0%Sold out
SG3 Management, LLC0$00.00%−6,000−100.0%Sold out
Parisi Gray Wealth Management0$00.00%−3,516−100.0%Sold out
Pinz Capital Management, LP0$00.00%−900−100.0%Sold out
Cowen Prime Services LLC––––Not filed