NYSE: ASPN
Aspen Aerogels Inc Stock Ownership - Who owns Aspen Aerogels?

Insider buying vs selling

Have Aspen Aerogels Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Grant Douglas ThoeleCFO Treasurer2026-03-08590$3.22
$1.90kSell
Corby C. WhitakerChief Commercial Officer2026-03-081,924$3.22
$6.20kSell
Gregg LandesChief Operating Officer2026-03-081,924$3.22
$6.20kSell
Donald R. 1. YoungPresident and CEO2026-03-084,275$3.22
$13.77kSell
Grant Douglas ThoeleCFO Treasurer2026-03-052,368$3.27
$7.74kSell
Santhosh P. DanielChief Accounting Officer2026-03-05986$3.27
$3.22kSell
Gregg LandesSVP Operations and Strat Deve2026-03-053,814$3.27
$12.47kSell
Corby C. WhitakerSVP Sales and Marketing2026-03-053,907$3.27
$12.78kSell
Donald R. 1. YoungPresident and CEO2026-03-058,618$3.27
$28.18kSell
Donald R. 1. YoungPresident and CEO2025-11-1356,845$3.23
$183.61kSell

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Net Insider Buy/Sell (L12M) Ownership

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ASPN Shareholders

What type of owners hold Aspen Aerogels Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Kim LLC14.83%12,280,426$40.53MInstitution
Wood River Capital LLC14.83%12,280,426$40.53MInsider
Koch Inc14.83%12,280,426$40.53MInsider
Blackrock Inc5.95%4,929,239$16.27MInstitution
Vanguard Group Inc5.66%4,685,950$15.46MInstitution
Oaktop Capital Management II LP5.31%4,394,525$14.50MInstitution
Needham Investment Management LLC5.25%4,351,700$14.36MInstitution
Invesco Ltd4.99%4,129,934$13.63MInstitution
Koch Industries Inc4.18%3,462,124$11.43MInsider
George Kaiser Family Foundation3.82%3,167,322$10.45MInstitution

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ASPN vs Building Product & Equipment Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ASPN66.95%33.05%Net SellingNet Selling
PPIH45.84%33.25%Net Selling
AIRJ15.89%84.11%Net BuyingNet Buying
JLHL0.22%46.62%
JELD78.30%21.70%Net BuyingNet Selling

Aspen Aerogels Stock Ownership FAQ

Who owns Aspen Aerogels?

Aspen Aerogels (NYSE: ASPN) is owned by 84.63% institutional shareholders, 41.78% Aspen Aerogels insiders, and 0.00% retail investors. Wood River Capital LLC is the largest individual Aspen Aerogels shareholder, owning 12.28M shares representing 14.83% of the company. Wood River Capital LLC's Aspen Aerogels shares are currently valued at $40.53M.

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