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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.

Q1 2025 vs. Q4 2024

How the institutions holding Aspen Aerogels Inc changed between Q4 2024 and Q1 2025.

All holders in Q1 2025All holders in Q4 2024

13F holders of ASPN: Q4 2024 compared with Q1 2025
MeasureQ4 2024Of which not filed for Q1 2025Q1 2025Change
Holders2314221−6
Shares73.0M1.05M71.3M−665.8K (−0.9%)
Value$868.2M$12.5M$455.4M−$400.4M (−46.8%)

4 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (45)

Institutions that held Aspen Aerogels Inc at the end of Q1 2025 but not at the end of Q4 2024.

Institutions new to ASPN in Q1 2025
InstitutionSharesValue% of portfolio
Penn Capital Management Co Inc642,094$4.11M0.40%
Nuveen, LLC169,473$1.08M0.00%
Balyasny Asset Management LLC156,748$1.00M0.00%
AQR Capital Management LLC150,186$959.7K0.00%
Hartree Partners, LP150,000$958.5K0.35%
ExodusPoint Capital Management, LP124,357$795.0K0.01%
AMH Equity Ltd110,000$702.9K1.09%
Janney Montgomery Scott LLC106,613$681.0K0.00%
SG Americas Securities, LLC67,394$431.0K0.00%
Centiva Capital, LP61,801$394.9K0.02%
Thrivent Financial for Lutherans55,719$356.0K0.00%
Skylands Capital, LLC54,800$350.2K0.05%
Caxton Associates LLP48,005$306.8K0.01%
Voleon Capital Management LP44,060$281.5K0.02%
Versor Investments LP43,500$278.0K0.05%
Dark Forest Capital Management LP37,520$239.8K0.01%
Lewis Asset Management, LLC33,100$211.5K0.17%
Universal- Beteiligungs- und Servicegesellschaft mbH31,774$203.0K0.00%
D. E. Shaw & Co., Inc.24,789$158.4K0.00%
Avantax Advisory Services, Inc.20,525$131.2K0.00%
Man Group plc18,706$119.5K0.00%
Penbrook Management LLC18,155$116.0K0.09%
Concurrent Investment Advisors, LLC17,093$109.2K0.00%
Eisler Capital Management Ltd.15,469$99.0K0.00%
CIBC World Markets Corp13,698$87.5K0.00%
Integrated Wealth Concepts LLC13,151$84.0K0.00%
FORA Capital, LLC12,362$79.0K0.01%
Two Sigma Securities, LLC11,513$73.6K0.01%
Guggenheim Capital LLC10,379$66.3K0.00%
Teacher Retirement System of Texas10,157$64.9K0.00%
Banque Cantonale Vaudoise6,974$45.0K0.00%
Acadian Asset Management LLC6,880$43.0K0.00%
Parallel Advisors, LLC3,640$23.3K0.00%
Coldstream Capital Management Inc2,986$19.1K0.00%
MAI Capital Management651$4.16K0.00%
Performa Ltd (US), LLC600$3.83K0.00%
Quarry LP435$2.78K0.00%
South State Corp.417$2.67K0.00%
Hexagon Capital Partners LLC135$8630.00%
Assetmark, Inc100$6390.00%
Point72 Hong Kong Ltd56$3550.00%
The PNC Financial Services Group, Inc.40$2560.00%
CoreCap Advisors, LLC23$1470.00%
TD Capital Management LLC22$1410.00%
Capital Advisors, Ltd. LLC24$00.00%

Sold out (51)

Institutions that held Aspen Aerogels Inc at the end of Q4 2024 and filed for Q1 2025 without it.

Institutions that sold out of ASPN in Q1 2025
InstitutionShares, Q4 2024Value, Q4 2024
Point72 Asset Management, L.P.1,104,549$13.1M
American Century Companies Inc1,003,184$11.9M
UniSuper Management Pty Ltd848,287$10.1M
Alyeska Investment Group, L.P.800,000$9.50M
Federated Hermes, Inc.630,500$7.49M
M&G Plc511,314$6.14M
Caption Management, LLC262,610$3.12M
Ardsley Advisory Partners LP261,100$3.10M
Jump Financial, LLC239,895$2.85M
Kennedy Capital Management, Inc.224,475$2.67M
Engineers Gate Manager LP155,087$1.84M
Aquatic Capital Management LLC117,212$1.39M
DLD Asset Management, LP104,253$1.24M
Walleye Capital LLC80,805$960.0K
Storebrand Asset Management AS68,846$817.9K
Wellington Management Group LLP64,700$768.6K
GWM Advisors LLC61,088$725.7K
Bayesian Capital Management, LP53,909$640.4K
Lombard Odier Asset Management (USA) Corp49,398$586.8K
Yorktown Management & Research Co Inc44,100$523.9K
Point72 (DIFC) Ltd39,237$466.1K
Fuller & Thaler Asset Management, Inc.38,200$453.8K
Greenwood Capital Associates LLC36,938$438.8K
Alpha DNA Investment Management LLC36,860$437.9K
Connective Capital Management, LLC36,475$433.3K
Corton Capital Inc.29,277$347.8K
Toronto Dominion Bank22,388$266.0K
Commonwealth Equity Services, LLC22,192$264.0K
Talbot Financial, LLC21,130$251.0K
Bridgefront Capital, LLC20,427$242.7K
Allianz Asset Management GmbH20,289$241.0K
Aigen Investment Management, LP18,445$219.1K
Capula Management Ltd17,523$208.2K
Cim, LLC16,263$193.2K
Cambridge Investment Research Advisors, Inc.15,792$188.0K
Bank of Montreal12,953$153.9K
Wealth Enhancement Advisory Services, LLC10,843$128.8K
Sandia Investment Management LP7,500$89.1K
Leonteq Securities AG2,948$35.0K
Stance Capital LLC2,889$34.3K
Northwestern Mutual Wealth Management Co2,779$33.0K
R Squared Ltd2,050$24.4K
Coppell Advisory Solutions LLC1,869$22.5K
Harel Insurance Investments & Financial Services Ltd.1,597$19.0K
Kestra Investment Management, LLC1,504$17.9K
Red Tortoise LLC271$3.22K
FLP Wealth Management, LLC201$2.39K
Lindbrook Capital, LLC176$2.09K
Bessemer Group Inc115$1.00K
MRP Capital Investments, LLC25$297
WealthTrak Capital Management LLC10$119

Not filed for Q1 2025 yet (4)

Institutions that held Aspen Aerogels Inc at the end of Q4 2024 and haven't filed a 13F for Q1 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ASPN in Q4 2024 that haven't filed for Q1 2025
InstitutionShares, Q4 2024Value, Q4 2024
Nuveen Asset Management, LLC562,303$6.68M
Mesirow Institutional Investment Management, Inc.488,595$5.80M
Criterion Capital Advisors, LLC7$167
WR Wealth Planners, LLC12$143