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ISSUER PROFILE · CIK 0001145986

ASPEN AEROGELS INCASPN

1 13D/G filings 1 distinct filers 0 insider transactions (365d)

Cross-Reference Snapshot

Activist filings
1
1 SC
Distinct filers
1
single filer
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
5.33
as of 2026-03-31

13D/G Filings Timeline · 1 total

FiledFormFilerStakeSharesIntent
2024-05-16 SC Wood River Capital, LLC view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-03-31 6,232,371 5.33 -11.7%
2026-03-13 7,054,834 4.47 -5.3%
2026-02-27 7,449,281 3.04 +0.2%
2026-02-13 7,432,237 6.34 -2.2%
2026-01-30 7,597,323 4.86 -13.0%
2026-01-15 8,730,143 5.51 -4.6%
2025-12-31 9,150,305 4.01 +9.2%
2025-12-15 8,377,032 4.84 -2.2%

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