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Aspen Aerogels Inc

ASPNNASDAQ · US

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Holders

BlackRock
13F filer
$107.1M
4,492,396 sh
as-of 30 Jun 2024Stale
Two Sigma Investments
13F filer
$1.5M
441,436 sh
as-of 31 Mar 2026Stale

Ownership

Ownership data not yet available for this security.

Disclosure timeline

REDUCEDT+30
Deegan Glenn E.
Aspen Aerogels Inc · NASDAQ
−1,143 sh · $6.3K
Filed 1 Oct 2026SEC Form 4view source
REDUCEDT+30
Wood River Capital, LLC
Aspen Aerogels Inc · NASDAQ
−12,280,426 sh · $58.1M
Filed 24 Sept 2026SEC Form 4view source
DISCLOSEDStale
Two Sigma Investments
Aspen Aerogels Inc · NASDAQ
441,436 sh · $1.5M
Filed 31 Mar 2026SEC 13Fview source
DISCLOSEDStale
BlackRock
Aspen Aerogels Inc · NASDAQ
4,492,396 sh · $107.1M
Filed 30 Jun 2024SEC 13Fview source

Announcements

No announcements on record for this security.

ASPNNASDAQ · US

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Latest filing1 Oct 2026T+30

2 disclosed holders · 4 disclosures · 0 announcements

Ownership

Ownership data not yet available for this security.

Announcements

No announcements on record for this security.