Institutional shares held 75.8 Million
3.51M calls
1.94M puts
Total value of holdings $564M
$26.1M calls
$14.4M puts
Market Cap $300M
40,440,700 Shares Out.
Institutional ownership 187.54%
# of Institutions 266


Latest Institutional Activity in ASPN

Top Purchases

Q4 2024
Millennium Management LLC Shares Held: 1.62M ($12.1M)
Q4 2024
Cubist Systematic Strategies, LLC Shares Held: 1.39M ($10.4M)
Q4 2024
Point72 Asset Management, L.P. Shares Held: 1.1M ($8.21M)
Q4 2024
Alyeska Investment Group, L.P. Shares Held: 800K ($5.94M)
Q4 2024
Dendur Capital LP Shares Held: 775K ($5.76M)

Top Sells

Q4 2024
Dld Asset Management, LP Shares Held: 104K ($775K)
Q4 2024
American Century Companies Inc Shares Held: 1M ($7.45M)
Q4 2024
Federated Hermes, Inc. Shares Held: 631K ($4.68M)
Q4 2024
Susquehanna International Group, LLP Shares Held: 167K ($1.24M)
Q4 2024
Royce & Associates LP Shares Held: 947K ($7.03M)

About ASPN

Aspen Aerogels, Inc. designs, develops, manufactures, and sells aerogel insulation products primarily for use in the energy infrastructure and building materials markets in the United States, Asia, Canada, Europe, and Latin America. The company offers PyroThin thermal barriers for use in lithium-ion batteries in electric vehicles and energy storage industries; Pyrogel XTE that reduces the risk of corrosion under insulation in energy infrastructure operating systems; Pyrogel HPS for applications within the power generation market; Pyrogel XTF to provide protection against fire; Cryogel Z for sub-ambient and cryogenic applications in the energy infrastructure market; and Spaceloft Subsea for use in pipe-in-pipe applications in offshore oil production. It also offers Spaceloft Grey and Spaceloft A2 for use in the building materials market; and Cryogel X201, which is used in designing cold systems, such as refrigerated appliances, cold storage equipment, and aerospace systems. The company was founded in 2001 and is headquartered in Northborough, Massachusetts.


Insider Transactions at ASPN

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
1.03M Shares
From 20 Insiders
Grant, award, or other acquisition 236K shares
Exercise of conversion of derivative security 796K shares
Sell / Disposition
4.26M Shares
From 15 Insiders
Payment of exercise price or tax liability 105K shares
Open market or private sale 4.16M shares

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