ASPEN AEROGELS INC (ASPN) — large price moves

Materials · NYSE

Single sessions where ASPN closed 10% or more away from the previous close, between 2025-10-08 and 2026-10-08. Each one lists the events filed in the 5 days ending at that session, in date order.

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Of the 11 moves listed, 4 have at least one filed event in the 5 days ending at the session, and 7 have none. Across the catalog most large moves have nothing filed near them, so an empty list is an ordinary result and not a gap.

Moves

2026-08-06 +37.5% $5.01 to $6.89 filed events in the 5 days to 2026-08-06
- 2026-08-06 Earnings Quarterly results reportedquarter ended 2026-06-30 · reported EPS USD -0.22 against an estimate of USD -0.20 · surprise -7.7%Source: SEC filing calendar + Yahoo earnings history
- 2026-08-06 Material event 8-K filed (material event)accession 0001171843-26-005289Source: SEC EDGAR
2026-07-30 +10.3% $4.09 to $4.51 filed events in the 5 days to 2026-07-30

No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
2026-05-07 +24.3% $4.12 to $5.12 filed events in the 5 days to 2026-05-07
- 2026-05-07 Earnings Quarterly results reportedquarter ended 2026-03-31 · reported EPS USD -0.28 against an estimate of USD -0.26 · surprise -8.7%Source: SEC filing calendar + Yahoo earnings history
- 2026-05-07 Material event 8-K filed (material event)accession 0001171843-26-003109Source: SEC EDGAR
2026-05-01 +15.1% $3.71 to $4.27 filed events in the 5 days to 2026-05-01

No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
2026-04-10 -10.7% $3.74 to $3.34 filed events in the 5 days to 2026-04-10

No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
2026-03-12 +10.1% $3.26 to $3.59 filed events in the 5 days to 2026-03-12

No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
2026-02-26 +22.2% $2.57 to $3.14 filed events in the 5 days to 2026-02-26
- 2026-02-25 Earnings Quarterly results reportedquarter ended 2025-12-31 · reported EPS USD -0.34 against an estimate of USD -0.22 · surprise -53.8%Source: SEC filing calendar + Yahoo earnings history
- 2026-02-25 Material event 8-K filed (material event)accession 0001171843-26-001072Source: SEC EDGAR
2026-02-25 -27.8% $3.56 to $2.57 filed events in the 5 days to 2026-02-25
- 2026-02-25 Earnings Quarterly results reportedquarter ended 2025-12-31 · reported EPS USD -0.34 against an estimate of USD -0.22 · surprise -53.8%Source: SEC filing calendar + Yahoo earnings history
- 2026-02-25 Material event 8-K filed (material event)accession 0001171843-26-001072Source: SEC EDGAR
2026-02-06 +11.4% $3.08 to $3.43 filed events in the 5 days to 2026-02-06

No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
2026-01-05 +12.1% $2.89 to $3.24 filed events in the 5 days to 2026-01-05

No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
2025-11-06 -44.5% $7.41 to $4.11 filed events in the 5 days to 2025-11-06

No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.

These are events filed near a session, listed by date. They are not ranked, and no connection between an event and a price move is stated or implied.

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See the full company profile: ASPEN AEROGELS INC (ASPN).

Informational only — NOT financial advice. Price moves are computed from stored daily closes; filed events come from their own sources with their own dates.